Fix handling of floating-point homogeneous aggregates.

[gcc.git] / gcc / ChangeLog

2020-02-21  John David Anglin  <danglin@gcc.gnu.org>

        * gcc/config/pa/pa.c (pa_function_value): Fix check for word and
        double-word size when handling aggregate return values.
        * gcc/config/pa/som.h (ASM_DECLARE_FUNCTION_NAME): Fix to indicate
        that homogeneous SFmode and DFmode aggregates are passed and returned
        in general registers.

2020-02-21  Jakub Jelinek  <jakub@redhat.com>

        PR translation/93759
        * opts.c (print_filtered_help): Translate help before appending
        messages to it rather than after that.

2020-02-19  Richard Sandiford  <richard.sandiford@arm.com>

        PR rtl-optimization/PR92989
        * lra-lives.c (process_bb_lives): Restore the original order
        of the bb liveness update.  Call make_hard_regno_dead for each
        register clobbered at the start of an EH receiver.

2020-02-18  Feng Xue  <fxue@os.amperecomputing.com>

        PR ipa/93763
        * ipa-cp.c (self_recursively_generated_p): Mark self-dependent value as
        self-recursively generated.

2020-02-21  Iain Sandoe  <iain@sandoe.co.uk>

        PR target/93860
        * config/darwin-c.c (pop_field_alignment): Adjust quoting of
        error string.

2020-02-21  Mihail Ionescu  <mihail.ionescu@arm.com>

        * doc/sourcebuild.texi (arm_v8_1m_mve_ok):
        Document new target supports option.

2020-02-21  Dennis Zhang  <dennis.zhang@arm.com>

        * config/arm/arm_neon.h (vmmlaq_s32, vmmlaq_u32, vusmmlaq_s32): New.
        * config/arm/arm_neon_builtins.def (smmla, ummla, usmmla): New.
        * config/arm/iterators.md (MATMUL): New iterator.
        (sup): Add UNSPEC_MATMUL_S, UNSPEC_MATMUL_U, and UNSPEC_MATMUL_US.
        (mmla_sfx): New attribute.
        * config/arm/neon.md (neon_<sup>mmlav16qi): New.
        * config/arm/unspecs.md (UNSPEC_MATMUL_S, UNSPEC_MATMUL_U): New.
        (UNSPEC_MATMUL_US): New.

2020-02-21  Mihail-Calin Ionescu  <mihail.ionescu@arm.com>

        * config/arm/arm.md: Prevent scalar shifts from being used when big
        endian is enabled.

2020-02-21  Jan Hubicka  <hubicka@ucw.cz>
            Richard Biener  <rguenther@suse.de>

        PR tree-optimization/93586
        * tree-ssa-alias.c (nonoverlapping_array_refs_p): Finish array walk
        after mismatched array refs; do not sure type size information to
        recover from unmatched referneces with !flag_strict_aliasing_p.

2020-02-21  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn-valu.md (gather_load<mode>): Rename to ...
        (gather_load<mode>v64si): ... this and set operand 2 to V64SI.
        (scatter_store<mode>): Rename to ...
        (scatter_store<mode>v64si): ... this and set operand 1 to V64SI.
        (scatter<mode>_exec): Delete. Move contents ...
        (mask_scatter_store<mode>): ... here, and rename that to ...
        (mask_gather_load<mode>v64si): ... this. Set operand 2 to V64SI.
        Remove mode conversion.
        (mask_gather_load<mode>): Rename to ...
        (mask_scatter_store<mode>v64si): ... this. Set operand 1 to V64SI.
        Remove mode conversion.
        * config/gcn/gcn.c (gcn_expand_scaled_offsets): Remove mode conversion.

2020-02-21  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/93845
        * tree-sra.c (verify_sra_access_forest): Only test access size of
        scalar types.

2020-02-21  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn.c (gcn_hard_regno_mode_ok): Align VGPR pairs.
        * config/gcn/gcn-valu.md (addv64di3): Remove early-clobber.
        (addv64di3_exec): Likewise.
        (subv64di3): Likewise.
        (subv64di3_exec): Likewise.
        (addv64di3_zext): Likewise.
        (addv64di3_zext_exec): Likewise.
        (addv64di3_zext_dup): Likewise.
        (addv64di3_zext_dup_exec): Likewise.
        (addv64di3_zext_dup2): Likewise.
        (addv64di3_zext_dup2_exec): Likewise.
        (addv64di3_sext_dup2): Likewise.
        (addv64di3_sext_dup2_exec): Likewise.
        (<expander>v64di3): Likewise.
        (<expander>v64di3_exec): Likewise.
        (*<reduc_op>_dpp_shr_v64di): Likewise.
        (*plus_carry_dpp_shr_v64di): Likewise.
        * config/gcn/gcn.md (adddi3): Likewise.
        (addptrdi3): Likewise.
        (<expander>di3): Likewise.

2020-02-21  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn-valu.md (vec_seriesv64di): Use gen_vec_duplicatev64di.

2020-02-21  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_emit_approx_sqrt): Add SVE
        support.  Use aarch64_emit_mult instead of emitting multiplication
        instructions directly.
        * config/aarch64/aarch64-sve.md (sqrt<mode>2, rsqrt<mode>2)
        (@aarch64_rsqrte<mode>, @aarch64_rsqrts<mode>): New expanders.

2020-02-21  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_emit_mult): New function.
        (aarch64_emit_approx_div): Add SVE support.  Use aarch64_emit_mult
        instead of emitting multiplication instructions directly.
        * config/aarch64/iterators.md (SVE_COND_FP_BINARY_OPTAB): New iterator.
        * config/aarch64/aarch64-sve.md (div<mode>3, @aarch64_frecpe<mode>)
        (@aarch64_frecps<mode>): New expanders.

2020-02-21  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-protos.h (AARCH64_APPROX_MODE): Operate
        on and produce uint64_ts rather than ints.
        (AARCH64_APPROX_NONE, AARCH64_APPROX_ALL): Change to uint64_ts.
        (cpu_approx_modes): Change the fields from unsigned int to uint64_t.

2020-02-21  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_emit_approx_sqrt): Don't create
        an unused xmsk register when handling approximate rsqrt.

2020-02-21  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_emit_approx_sqrt): Fix inverted
        flag_finite_math_only condition.

2020-02-20  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/93828
        * config/i386/mmx.md (*vec_extractv2sf_1): Match source operand
        to destination operand for shufps alternative.
        (*vec_extractv2si_1): Ditto.

2020-02-20  Peter Bergner  <bergner@linux.ibm.com>

        PR target/93658
        * config/rs6000/rs6000.c (rs6000_legitimate_address_p): Handle VSX
        vector modes.

2020-02-20  Martin Liska  <mliska@suse.cz>

        PR translation/93831
        * config/darwin.c (darwin_override_options): Change 64b to 64-bit mode.

2020-02-20  Martin Liska  <mliska@suse.cz>

        PR translation/93830
        * common/config/avr/avr-common.c: Remote trailing "|".

2020-02-19  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * collect2.c (maybe_run_lto_and_relink): Fix typo in
        comment.

2020-02-19  Richard Sandiford  <richard.sandiford@arm.com>

        PR tree-optimization/93767
        * tree-vect-data-refs.c (vect_compile_time_alias): Remove the
        access-size bias from the offset calculations for negative strides.

2020-02-19  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * collect2.c (c_file, o_file): Make const again.
        (ldout,lderrout, dump_ld_file): Remove.
        (tool_cleanup): Avoid calling not signal-safe functions.
        (maybe_run_lto_and_relink): Avoid possible signal handler
        access to unintialzed memory (lto_o_files).
        (main): Avoid leaking temp files in $TMPDIR.
        Initialize c_file/o_file with concat, which avoids exposing
        uninitialized memory to signal handler, which calls unlink(!).
        Avoid calling maybe_unlink when the main function returns,
        since the atexit handler is already doing this.
        * collect2.h (dump_ld_file, ldout, lderrout): Remove.

2020-02-19  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/93776
        * tree-sra.c (create_access): Do not create zero size accesses.
        (get_access_for_expr): Do not search for zero sized accesses.

2020-02-19  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/93667
        * tree-sra.c (scalarizable_type_p): Return false if record fields
        do not follow wach other.

2020-01-21  Kito Cheng  <kito.cheng@sifive.com>

        * config/riscv/riscv.c (riscv_output_move) Using fmv.x.w/fmv.w.x
        rather than fmv.x.s/fmv.s.x.

2020-02-18  James Greenhalgh  <james.greenhalgh@arm.com>

        * config/aarch64/aarch64-simd-builtins.def
        (intrinsic_vec_smult_lo_): New.
        (intrinsic_vec_umult_lo_): Likewise.
        (vec_widen_smult_hi_): Likewise.
        (vec_widen_umult_hi_): Likewise.
        * config/aarch64/aarch64-simd.md
        (aarch64_intrinsic_vec_<su>mult_lo_<mode>): New.
        * config/aarch64/arm_neon.h (vmull_high_s8): Use intrinsics.
        (vmull_high_s16): Likewise.
        (vmull_high_s32): Likewise.
        (vmull_high_u8): Likewise.
        (vmull_high_u16): Likewise.
        (vmull_high_u32): Likewise.
        (vmull_s8): Likewise.
        (vmull_s16): Likewise.
        (vmull_s32): Likewise.
        (vmull_u8): Likewise.
        (vmull_u16): Likewise.
        (vmull_u32): Likewise.

2020-02-18  Martin Liska  <mliska@suse.cz>

        * value-prof.c (stream_out_histogram_value): Restore LTO PGO
        bootstrap by missing removal of invalid sanity check.

2020-02-18  Martin Liska  <mliska@suse.cz>

        PR ipa/92518
        * ipa-icf-gimple.c (func_checker::compare_gimple_assign):
        Always compare LHS of gimple_assign.

2020-02-18  Martin Liska  <mliska@suse.cz>

        PR ipa/93583
        * cgraph.c (cgraph_node::verify_node): Verify MALLOC attribute
        and return type of functions.
        * ipa-param-manipulation.c (ipa_param_adjustments::adjust_decl):
        Drop MALLOC attribute for void functions.
        * ipa-pure-const.c (funct_state_summary_t::duplicate): Drop
        malloc_state for a new VOID clone.

2020-02-18  Martin Liska  <mliska@suse.cz>

        PR ipa/92924
        * common.opt: Add -fprofile-reproducibility.
        * doc/invoke.texi: Document it.
        * value-prof.c (dump_histogram_value):
        Document and support behavior for counters[0]
        being a negative value.
        (get_nth_most_common_value): Handle negative
        counters[0] in respect to flag_profile_reproducible.

2020-02-18  Jakub Jelinek  <jakub@redhat.com>

        PR ipa/93797
        * cgraph.c (verify_speculative_call): Use speculative_id instead of
        speculative_uid in messages.  Remove trailing whitespace from error
        message.  Use num_speculative_call_targets instead of
        num_speculative_targets in a message.
        (cgraph_node::verify_node): Use call_stmt instead of cal_stmt in
        edge messages and stmt instead of cal_stmt in reference message.

        PR tree-optimization/93780
        * tree-ssa.c (non_rewritable_lvalue_p): Check valid_vector_subparts_p
        before calling build_vector_type.
        (execute_update_addresses_taken): Likewise.

        PR driver/93796
        * params.opt (-param=ipa-max-switch-predicate-bounds=): Fix help
        typo, functoin -> function.
        * tree.c (free_lang_data_in_decl): Fix comment typo,
        functoin -> function.
        * ipa-visibility.c (cgraph_externally_visible_p): Likewise.

2020-02-17  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic.c (print_any_cwe): Don't call get_cwe_url if URLs
        won't be printed.
        (print_option_information): Don't call get_option_url if URLs
        won't be printed.

2020-02-17  Alexandre Oliva  <oliva@adacore.com>

        * tree-emutls.c (new_emutls_decl, emutls_common_1): Complete
        handling of register_common-less targets.

2020-02-17  Martin Liska  <mliska@suse.cz>

        PR ipa/93760
        * ipa-devirt.c (odr_types_equivalent_p): Fix grammar.

2020-02-17  Martin Liska  <mliska@suse.cz>

        PR translation/93755
        * config/rs6000/rs6000.c (rs6000_option_override_internal):
        Fix double quotes.

2020-02-17  Martin Liska  <mliska@suse.cz>

        PR other/93756
        * config/rx/elf.opt: Fix typo.

2020-02-17  Richard Biener  <rguenther@suse.de>

        PR c/86134
        * opts-global.c (print_ignored_options): Use inform and
        amend message.

2020-02-17  Jiufu Guo  <guojiufu@linux.ibm.com>

        PR target/93047
        * config/rs6000/rs6000.md (untyped_call): Add emit_clobber.

2020-02-16  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/93743
        * config/i386/i386.md (atan2xf3): Swap operands 1 and 2.
        (atan2<mode>3): Update operand order in the call to gen_atan2xf3.

2020-02-15  Jason Merrill  <jason@redhat.com>

        * doc/invoke.texi (C Dialect Options): Add -std=c++20.

2020-02-15  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/93744
        * match.pd (((m1 >/</>=/<= m2) * d -> (m1 >/</>=/<= m2) ? d : 0,
        A - ((A - B) & -(C cmp D)) -> (C cmp D) ? B : A,
        A + ((B - A) & -(C cmp D)) -> (C cmp D) ? B : A): For GENERIC, make
        sure @2 in the first and @1 in the other patterns has no side-effects.

2020-02-15  David Malcolm  <dmalcolm@redhat.com>
            Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR 87488
        PR other/93168
        * config.in (DIAGNOSTICS_URLS_DEFAULT): New define.
        * configure.ac (--with-diagnostics-urls): New configuration
        option, based on --with-diagnostics-color.
        (DIAGNOSTICS_URLS_DEFAULT): New define.
        * config.h: Regenerate.
        * configure: Regenerate.
        * diagnostic.c (diagnostic_urls_init): Handle -1 for
        DIAGNOSTICS_URLS_DEFAULT from configure-time
        --with-diagnostics-urls=auto-if-env by querying for a GCC_URLS
        and TERM_URLS environment variable.
        * diagnostic-url.h (diagnostic_url_format): New enum type.
        (diagnostic_urls_enabled_p): rename to...
        (determine_url_format): ... this, and change return type.
        * diagnostic-color.c (parse_env_vars_for_urls): New helper function.
        (auto_enable_urls): Disable URLs on xfce4-terminal, gnome-terminal,
        the linux console, and mingw.
        (diagnostic_urls_enabled_p): rename to...
        (determine_url_format): ... this, and adjust.
        * pretty-print.h (pretty_printer::show_urls): rename to...
        (pretty_printer::url_format): ... this, and change to enum.
        * pretty-print.c (pretty_printer::pretty_printer,
        pp_begin_url, pp_end_url, test_urls): Adjust.
        * doc/install.texi (--with-diagnostics-urls): Document the new
        configuration option.
        (--with-diagnostics-color): Document the existing interaction
        with GCC_COLORS better.
        * doc/invoke.texi (-fdiagnostics-urls): Add GCC_URLS and TERM_URLS
        vindex reference.  Update description of defaults based on the above.
        (-fdiagnostics-color): Update description of how -fdiagnostics-color
        interacts with GCC_COLORS.

2020-02-14  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/93704
        * config/sparc/sparc.c (eligible_for_call_delay): Test HAVE_GNU_LD in
        conjunction with TARGET_GNU_TLS in early return.

2020-02-14  Alexander Monakov  <amonakov@ispras.ru>

        * rtlanal.c (rtx_cost): Handle a SET up front. Avoid division if
        the mode is not wider than UNITS_PER_WORD.

2020-02-14  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/93516
        * tree-sra.c (propagate_subaccesses_from_rhs): Do not create
        access of the same type as the parent.
        (propagate_subaccesses_from_lhs): Likewise.

2020-02-14 Hongtao Liu  <hongtao.liu@intel.com>

        PR target/93724
        * config/i386/avx512vbmi2intrin.h
        (_mm512_shrdi_epi16, _mm512_mask_shrdi_epi16,
        _mm512_maskz_shrdi_epi16, _mm512_shrdi_epi32,
        _mm512_mask_shrdi_epi32, _mm512_maskz_shrdi_epi32,
        _m512_shrdi_epi64, _m512_mask_shrdi_epi64,
        _m512_maskz_shrdi_epi64, _mm512_shldi_epi16,
        _mm512_mask_shldi_epi16, _mm512_maskz_shldi_epi16,
        _mm512_shldi_epi32, _mm512_mask_shldi_epi32,
        _mm512_maskz_shldi_epi32, _mm512_shldi_epi64,
        _mm512_mask_shldi_epi64, _mm512_maskz_shldi_epi64): Fix typo
        of lacking a closing parenthesis.
        * config/i386/avx512vbmi2vlintrin.h
        (_mm256_shrdi_epi16, _mm256_mask_shrdi_epi16,
        _mm256_maskz_shrdi_epi16, _mm256_shrdi_epi32,
        _mm256_mask_shrdi_epi32, _mm256_maskz_shrdi_epi32,
        _m256_shrdi_epi64, _m256_mask_shrdi_epi64,
        _m256_maskz_shrdi_epi64, _mm256_shldi_epi16,
        _mm256_mask_shldi_epi16, _mm256_maskz_shldi_epi16,
        _mm256_shldi_epi32, _mm256_mask_shldi_epi32,
        _mm256_maskz_shldi_epi32, _mm256_shldi_epi64,
        _mm256_mask_shldi_epi64, _mm256_maskz_shldi_epi64,
        _mm_shrdi_epi16, _mm_mask_shrdi_epi16,
        _mm_maskz_shrdi_epi16, _mm_shrdi_epi32,
        _mm_mask_shrdi_epi32, _mm_maskz_shrdi_epi32,
        _mm_shrdi_epi64, _mm_mask_shrdi_epi64,
        _m_maskz_shrdi_epi64, _mm_shldi_epi16,
        _mm_mask_shldi_epi16, _mm_maskz_shldi_epi16,
        _mm_shldi_epi32, _mm_mask_shldi_epi32,
        _mm_maskz_shldi_epi32, _mm_shldi_epi64,
        _mm_mask_shldi_epi64, _mm_maskz_shldi_epi64): Ditto.

2020-02-13  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/93656
        * config/i386/i386.c (ix86_trampoline_init): Skip ENDBR32 at
        the target function entry.

2020-02-13  Claudiu Zissulescu  <claziss@synopsys.com>

        * common/config/arc/arc-common.c (arc_option_optimization_table):
        Disable if-conversion step when optimized for size.

2020-02-13  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_conditional_register_usage): R0-R3 and
        R12-R15 are always in ARCOMPACT16_REGS register class.
        * config/arc/arc.opt (mq-class): Deprecate.
        * config/arc/constraint.md ("q"): Remove dependency on mq-class
        option.
        * doc/invoke.texi (mq-class): Update text.
        * common/config/arc/arc-common.c (arc_option_optimization_table):
        Update list.

2020-02-13  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_insn_cost): New function.
        (TARGET_INSN_COST): Define.
        * config/arc/arc.md (cost): New attribute.
        (add_n): Use arc_nonmemory_operand.
        (ashlsi3_insn): Likewise, also update constraints.
        (ashrsi3_insn): Likewise.
        (rotrsi3): Likewise.
        (add_shift): Likewise.
        * config/arc/predicates.md (arc_nonmemory_operand): New predicate.

2020-02-13  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (mulsidi_600): Correctly select mlo/mhi
        registers.
        (umulsidi_600): Likewise.

2020-02-13  Jakub Jelinek  <jakub@redhat.com>

        PR target/93696
        * config/i386/avx512bitalgintrin.h (_mm512_mask_popcnt_epi8,
        _mm512_mask_popcnt_epi16, _mm256_mask_popcnt_epi8,
        _mm256_mask_popcnt_epi16, _mm_mask_popcnt_epi8,
        _mm_mask_popcnt_epi16): Rename __B argument to __A and __A to __W,
        pass __A to the builtin followed by __W instead of __A followed by
        __B.
        * config/i386/avx512vpopcntdqintrin.h (_mm512_mask_popcnt_epi32,
        _mm512_mask_popcnt_epi64): Likewise.
        * config/i386/avx512vpopcntdqvlintrin.h (_mm_mask_popcnt_epi32,
        _mm256_mask_popcnt_epi32, _mm_mask_popcnt_epi64,
        _mm256_mask_popcnt_epi64): Likewise.

        PR tree-optimization/93582
        * fold-const.h (shift_bytes_in_array_left,
        shift_bytes_in_array_right): Declare.
        * fold-const.c (shift_bytes_in_array_left,
        shift_bytes_in_array_right): New function, moved from
        gimple-ssa-store-merging.c, no longer static.
        * gimple-ssa-store-merging.c (shift_bytes_in_array): Move
        to gimple-ssa-store-merging.c and rename to shift_bytes_in_array_left.
        (shift_bytes_in_array_right): Move to gimple-ssa-store-merging.c.
        (encode_tree_to_bitpos): Use shift_bytes_in_array_left instead of
        shift_bytes_in_array.
        (verify_shift_bytes_in_array): Rename to ...
        (verify_shift_bytes_in_array_left): ... this.  Use
        shift_bytes_in_array_left instead of shift_bytes_in_array.
        (store_merging_c_tests): Call verify_shift_bytes_in_array_left
        instead of verify_shift_bytes_in_array.
        * tree-ssa-sccvn.c (vn_reference_lookup_3): For native_encode_expr
        / native_interpret_expr where the store covers all needed bits,
        punt on PDP-endian, otherwise allow all involved offsets and sizes
        not to be byte-aligned.

        PR target/93673
        * config/i386/sse.md (k<code><mode>): Drop mode from last operand and
        use const_0_to_255_operand predicate instead of immediate_operand.
        (avx512dq_fpclass<mode><mask_scalar_merge_name>,
        avx512dq_vmfpclass<mode><mask_scalar_merge_name>,
        vgf2p8affineinvqb_<mode><mask_name>,
        vgf2p8affineqb_<mode><mask_name>): Drop mode from
        const_0_to_255_operand predicated operands.

2020-02-12  Jeff Law  <law@redhat.com>

        * config/h8300/h8300.md (comparison shortening peepholes): Use
        a mode iterator to merge the HImode and SImode peepholes.

2020-02-12  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/93663
        * real.c (is_even): Make static.  Function comment fix.
        (is_halfway_below): Make static, don't assert R is not inf/nan,
        instead return false for those.  Small formatting fixes.

2020-02-12  Martin Sebor  <msebor@redhat.com>

        PR middle-end/93646
        * tree-ssa-strlen.c (handle_builtin_stxncpy): Rename...
        (handle_builtin_stxncpy_strncat): ...to this.  Change first argument.
        Issue only -Wstringop-overflow strncat, never -Wstringop-truncation.
        (strlen_check_and_optimize_call): Adjust callee name.

2020-02-12  Jeff Law  <law@redhat.com>

        * config/h8300/h8300.md (comparison shortening peepholes): Drop
        (and (xor)) variant.  Combine other two into single peephole.

2020-02-12  Wilco Dijkstra  <wdijkstr@arm.com>

        PR rtl-optimization/93565
        * config/aarch64/aarch64.c (aarch64_rtx_costs): Add CTZ costs.

2020-02-12  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64-simd.md
        (aarch64_zero_extend<GPI:mode>_reduc_plus_<VDQV_E:mode>): New pattern.
        * config/aarch64/aarch64.md (popcount<mode>2): Use it instead of
        generating separate ADDV and zero_extend patterns.
        * config/aarch64/iterators.md (VDQV_E): New iterator.

2020-02-12  Jeff Law  <law@redhat.com>

        * config/h8300/h8300.md (cpymemsi, movmd): Remove dead patterns,
        expanders, splits, etc.
        (movmd_internal_<mode>, movmd splitter, movstr, movsd): Likewise.
        (stpcpy_internal_<mode>, stpcpy splitter): Likewise.
        (peepholes to convert QI/HI mode pushes to SI mode pushes): Likewise.
        * config/h8300/h8300.c (h8300_swap_into_er6): Remove unused function.
        (h8300_swap_out_of_er6, h8sx_emit_movmd): Likewise
        * config/h8300/h8300-protos.h (h8300_swap_into_er6): Remove unused
        function prototype.
        (h8300_swap_out_of_er6, h8sx_emit_movmd): Likewise.

2020-02-12  Jakub Jelinek  <jakub@redhat.com>

        PR target/93670
        * config/i386/sse.md (VI48F_256_DQ): New mode iterator.
        (avx512vl_vextractf128<mode>): Use it instead of VI48F_256.  Remove
        TARGET_AVX512DQ from condition.
        (vec_extract_lo_<mode><mask_name>): Use <mask_avx512dq_condition>
        instead of <mask_mode512bit_condition> in condition.  If
        TARGET_AVX512DQ is false, emit vextract*64x4 instead of
        vextract*32x8.
        (vec_extract_lo_<mode><mask_name>): Drop <mask_avx512dq_condition>
        from condition.

2020-02-12  Kewen Lin  <linkw@gcc.gnu.org>

        PR target/91052
        * ira.c (combine_and_move_insns): Skip multiple_sets def_insn.

2020-02-12  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_debug_print_mode): Don't use sizeof
        where strlen is more legible.
        (rs6000_builtin_vectorized_libmass): Ditto.
        (rs6000_print_options_internal): Ditto.

2020-02-11  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/93683
        * tree-ssa-alias.c (stmt_kills_ref_p): Avoid using LHS when not set.

2020-02-11  Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/predicates.md (cint34_operand): Rename the
        -mprefixed-addr option to be -mprefixed.
        * config/rs6000/rs6000-cpus.def (ISA_FUTURE_MASKS_SERVER): Rename
        the -mprefixed-addr option to be -mprefixed.
        (OTHER_FUTURE_MASKS): Likewise.
        (POWERPC_MASKS): Likewise.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Rename
        the -mprefixed-addr option to be -mprefixed.  Change error
        messages to refer to -mprefixed.
        (num_insns_constant_gpr): Rename the -mprefixed-addr option to be
        -mprefixed.
        (rs6000_legitimate_offset_address_p): Likewise.
        (rs6000_mode_dependent_address): Likewise.
        (rs6000_opt_masks): Change the spelling of "-mprefixed-addr" to be
        "-mprefixed" for target attributes and pragmas.
        (address_to_insn_form): Rename the -mprefixed-addr option to be
        -mprefixed.
        (rs6000_adjust_insn_length): Likewise.
        * config/rs6000/rs6000.h (FINAL_PRESCAN_INSN): Rename the
        -mprefixed-addr option to be -mprefixed.
        (ASM_OUTPUT_OPCODE): Likewise.
        * config/rs6000/rs6000.md (prefixed insn attribute): Rename the
        -mprefixed-addr option to be -mprefixed.
        * config/rs6000/rs6000.opt (-mprefixed): Rename the
        -mprefixed-addr option to be prefixed.  Change the option from
        being undocumented to being documented.
        * doc/invoke.texi (RS/6000 and PowerPC Options): Document the
        -mprefixed option.  Update the -mpcrel documentation to mention
        -mprefixed.

2020-02-11  Hans-Peter Nilsson  <hp@axis.com>

        * ira-conflicts.c (print_hard_reg_set): Correct output for sets
        including FIRST_PSEUDO_REGISTER - 1.
        * ira-color.c (print_hard_reg_set): Ditto.

2020-02-11  Stam Markianos-Wright  <stam.markianos-wright@arm.com>

        * config/arm/arm-builtins.c (enum arm_type_qualifiers): 
        (USTERNOP_QUALIFIERS): New define.
        (USMAC_LANE_QUADTUP_QUALIFIERS): New define.
        (SUMAC_LANE_QUADTUP_QUALIFIERS): New define.
        (arm_expand_builtin_args): Add case ARG_BUILTIN_LANE_QUADTUP_INDEX.
        (arm_expand_builtin_1): Add qualifier_lane_quadtup_index.
        * config/arm/arm_neon.h (vusdot_s32): New.
        (vusdot_lane_s32): New.
        (vusdotq_lane_s32): New.
        (vsudot_lane_s32): New.
        (vsudotq_lane_s32): New.
        * config/arm/arm_neon_builtins.def (usdot, usdot_lane,sudot_lane): New.
        * config/arm/iterators.md (DOTPROD_I8MM): New.
        (sup, opsuffix): Add <us/su>.
        * config/arm/neon.md (neon_usdot, <us/su>dot_lane: New.
        * config/arm/unspecs.md (UNSPEC_DOT_US, UNSPEC_DOT_SU): New.

2020-02-11  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/93661
        PR tree-optimization/93662
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Properly guard
        tree_to_poly_int64.
        * tree-sra.c (get_access_for_expr): Likewise.

2020-02-10  Jakub Jelinek  <jakub@redhat.com>

        PR target/93637
        * config/i386/sse.md (VI_256_AVX2): New mode iterator.
        (vcond_mask_<mode><sseintvecmodelower>): Use it instead of VI_256.
        Change condition from TARGET_AVX2 to TARGET_AVX.

2020-02-10  Iain Sandoe  <iain@sandoe.co.uk>

        PR other/93641
        * config/darwin-c.c (darwin_cfstring_ref_p): Fix up last
        argument of strncmp.

2020-02-10  Hans-Peter Nilsson  <hp@axis.com>

        Try to generate zero-based comparisons.
        * config/cris/cris.c (cris_reduce_compare): New function.
        * config/cris/cris-protos.h  (cris_reduce_compare): Add prototype.
        * config/cris/cris.md ("cbranch<mode>4", "cbranchdi4", "cstoredi4")
        (cstore<mode>4"): Apply cris_reduce_compare in expanders.

2020-02-10  Richard Earnshaw  <rearnsha@arm.com>

        PR target/91913
        * config/arm/arm.md (movsi_compare0): Allow SP as a source register
        in Thumb state and also as a destination in Arm state.  Add T16
        variants.

2020-02-10  Hans-Peter Nilsson  <hp@axis.com>

        * md.texi (Define Subst): Match closing paren in example.

2020-02-10  Jakub Jelinek  <jakub@redhat.com>

        PR target/58218
        PR other/93641
        * config/i386/i386.c (x86_64_elf_section_type_flags): Fix up last
        arguments of strncmp.

2020-02-10  Feng Xue  <fxue@os.amperecomputing.com>

        PR ipa/93203
        * ipa-cp.c (ipcp_lattice::add_value): Add source with same call edge
        but different source value.
        (adjust_callers_for_value_intersection): New function.
        (gather_edges_for_value): Adjust order of callers to let a
        non-self-recursive caller be the first element.
        (self_recursive_pass_through_p): Add a new parameter "simple", and
        check generalized self-recursive pass-through jump function.
        (self_recursive_agg_pass_through_p): Likewise.
        (find_more_scalar_values_for_callers_subset): Compute value from
        pass-through jump function for self-recursive.
        (intersect_with_plats): Cleanup previous implementation code for value
        itersection with self-recursive call edge.
        (intersect_with_agg_replacements): Likewise.
        (intersect_aggregates_with_edge): Deduce value from pass-through jump
        function for self-recursive call edge.  Cleanup previous implementation
        code for value intersection with self-recursive call edge.
        (decide_whether_version_node): Remove dead callers and adjust order
        to let a non-self-recursive caller be the first element.

2020-02-09  Uroš Bizjak  <ubizjak@gmail.com>

        * recog.c: Move pass_split_before_sched2 code in front of
        pass_split_before_regstack.
        (pass_data_split_before_sched2): Rename pass to split3 from split4.
        (pass_data_split_before_regstack): Rename pass to split4 from split3.
        (rest_of_handle_split_before_sched2): Remove.
        (pass_split_before_sched2::execute): Unconditionally call
        split_all_insns.
        (enable_split_before_sched2): New function.
        (pass_split_before_sched2::gate): Use enable_split_before_sched2.
        (pass_split_before_regstack::gate): Ditto.
        * config/nds32/nds32.c (nds32_split_double_word_load_store_p):
        Update name check for renamed split4 pass.
        * config/sh/sh.c (register_sh_passes): Update pass insertion
        point for renamed split4 pass.

2020-02-09  Jakub Jelinek  <jakub@redhat.com>

        * gimplify.c (gimplify_adjust_omp_clauses_1): Promote
        DECL_IN_CONSTANT_POOL variables into "omp declare target" to avoid
        copying them around between host and target.

2020-02-08  Andrew Pinski  <apinski@marvell.com>

        PR target/91927
        * config/aarch64/aarch64-simd.md (movmisalign<mode>): Check
        STRICT_ALIGNMENT also.

2020-02-08  Jim Wilson  <jimw@sifive.com>

        PR target/93532
        * config/riscv/riscv.h (HARD_REGNO_CALLER_SAVE_MODE): Define.

2020-02-08  Uroš Bizjak  <ubizjak@gmail.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR target/65782
        * config/i386/i386.h (CALL_USED_REGISTERS): Make
        xmm16-xmm31 call-used even in 64-bit ms-abi.

2020-02-07  Dennis Zhang  <dennis.zhang@arm.com>

        * config/aarch64/aarch64-simd-builtins.def (simd_smmla): New entry.
        (simd_ummla, simd_usmmla): Likewise.
        * config/aarch64/aarch64-simd.md (aarch64_simd_<sur>mmlav16qi): New.
        * config/aarch64/arm_neon.h (vmmlaq_s32, vmmlaq_u32): New.
        (vusmmlaq_s32): New.

2020-02-07  Richard Biener  <rguenther@suse.de>

        PR middle-end/93519
        * tree-inline.c (fold_marked_statements): Do a PRE walk,
        skipping unreachable regions.
        (optimize_inline_calls): Skip folding stmts when we didn't
        inline.

2020-02-07  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/85667
        * config/i386/i386.c (function_arg_ms_64): Add a type argument.
        Don't return aggregates with only SFmode and DFmode in SSE
        register.
        (ix86_function_arg): Pass arg.type to function_arg_ms_64.

2020-02-07  Jakub Jelinek  <jakub@redhat.com>

        PR target/93122
        * config/rs6000/rs6000-logue.c
        (rs6000_emit_probe_stack_range_stack_clash): Always use gen_add3_insn,
        if it fails, move rs into end_addr and retry.  Add
        REG_FRAME_RELATED_EXPR note whenever it returns more than one insn or
        the insn pattern doesn't describe well what exactly happens to
        dwarf2cfi.c.

        PR target/93594
        * config/i386/predicates.md (avx_identity_operand): Remove.
        * config/i386/sse.md (*avx_vec_concat<mode>_1): Remove.
        (avx_<castmode><avxsizesuffix>_<castmode>,
        avx512f_<castmode><avxsizesuffix>_256<castmode>): Change patterns to
        a VEC_CONCAT of the operand and UNSPEC_CAST.
        (avx512f_<castmode><avxsizesuffix>_<castmode>): Change pattern to
        a VEC_CONCAT of VEC_CONCAT of the operand and UNSPEC_CAST with
        UNSPEC_CAST.

        PR target/93611
        * config/i386/i386.c (ix86_lea_outperforms): Make sure to clear
        recog_data.insn if distance_non_agu_define changed it.

2020-02-06  Michael Meissner  <meissner@linux.ibm.com>

        PR target/93569
        * config/rs6000/rs6000.c (reg_to_non_prefixed): Before ISA 3.0
        we only had X-FORM (reg+reg) addressing for vectors.  Also before
        ISA 3.0, we only had X-FORM addressing for scalars in the
        traditional Altivec registers.

2020-02-06  <zhongyunde@huawei.com>
            Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/93561
        * lra-assigns.c (spill_for): Check that tested hard regno is not out of
        hard register range.

2020-02-06  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.md (aarch64_movk<mode>): Add a type
        attribute.

2020-02-06  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_emit_set_long_const): Handle the case
        where the low and the high 32 bits are equal to each other specially,
        with an rldimi instruction.

2020-02-06  Mihail Ionescu  <mihail.ionescu@arm.com>

        * config/arm/arm-cpus.in: Set profile M for armv8.1-m.main.

2020-02-06  Mihail Ionescu  <mihail.ionescu@arm.com>

        * config/arm/arm-tables.opt: Regenerate.

2020-02-06  Richard Sandiford  <richard.sandiford@arm.com>

        PR target/87763
        * config/aarch64/aarch64-protos.h (aarch64_movk_shift): Declare.
        * config/aarch64/aarch64.c (aarch64_movk_shift): New function.
        * config/aarch64/aarch64.md (aarch64_movk<mode>): New pattern.

2020-02-06  Richard Sandiford  <richard.sandiford@arm.com>

        PR rtl-optimization/87763
        * config/aarch64/aarch64.md (*ashiftsi_extvdi_bfiz): New pattern.

2020-02-06  Delia Burduv  <delia.burduv@arm.com>

        * config/aarch64/aarch64-simd-builtins.def
        (bfmlaq): New built-in function.
        (bfmlalb): New built-in function.
        (bfmlalt): New built-in function.
        (bfmlalb_lane): New built-in function.
        (bfmlalt_lane): New built-in function.
        * config/aarch64/aarch64-simd.md
        (aarch64_bfmmlaqv4sf): New pattern.
        (aarch64_bfmlal<bt>v4sf): New pattern.
        (aarch64_bfmlal<bt>_lane<q>v4sf): New pattern.
        * config/aarch64/arm_neon.h (vbfmmlaq_f32): New intrinsic.
        (vbfmlalbq_f32): New intrinsic.
        (vbfmlaltq_f32): New intrinsic.
        (vbfmlalbq_lane_f32): New intrinsic.
        (vbfmlaltq_lane_f32): New intrinsic.
        (vbfmlalbq_laneq_f32): New intrinsic.
        (vbfmlaltq_laneq_f32): New intrinsic.
        * config/aarch64/iterators.md (BF_MLA): New int iterator.
        (bt): New int attribute.

2020-02-06  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*pushtf): Emit "#" instead of
        calling gcc_unreachable in insn output.
        (*pushxf): Ditto.
        (*pushdf): Ditto.
        (*pushsf_rex64): Ditto for alternatives other than 1.
        (*pushsf): Ditto for alternatives other than 1.

2020-02-06  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/91971
        PR gcov-profile/93466
        * coverage.c (coverage_init): Revert mangling of
        path into filename.  It can lead to huge filename length.
        Creation of subfolders seem more natural.

2020-02-06  Stam Markianos-Wright  <stam.markianos-wright@arm.com>

        PR target/93300
        * config/arm/arm.c (arm_block_arith_comp_libfuncs_for_mode): New.
        (arm_init_libfuncs): Add BFmode support to block spurious BF libfuncs.
        Use arm_block_arith_comp_libfuncs_for_mode for HFmode.

2020-02-06  Jakub Jelinek  <jakub@redhat.com>

        PR target/93594
        * config/i386/predicates.md (avx_identity_operand): New predicate.
        * config/i386/sse.md (*avx_vec_concat<mode>_1): New
        define_insn_and_split.

        PR libgomp/93515
        * omp-low.c (use_pointer_for_field): For nested constructs, also
        look for map clauses on target construct.
        (scan_omp_1_stmt) <case GIMPLE_OMP_TARGET>: Bump temporarily
        taskreg_nesting_level.

        PR libgomp/93515
        * gimplify.c (gimplify_scan_omp_clauses) <do_notice>: If adding
        shared clause, call omp_notice_variable on outer context if any.

2020-02-05  Jason Merrill  <jason@redhat.com>

        PR c++/92003
        * symtab.c (symtab_node::nonzero_address): A DECL_COMDAT decl has
        non-zero address even if weak and not yet defined.

2020-02-05  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/92765
        * gimple-fold.c (get_range_strlen_tree): Handle MEM_REF and PARM_DECL.
        * tree-ssa-strlen.c (compute_string_length): Remove.
        (determine_min_objsize): Remove.
        (get_len_or_size): Add an argument.  Call get_range_strlen_dynamic.
        Avoid using type size as the upper bound on string length.
        (handle_builtin_string_cmp): Add an argument.  Adjust.
        (strlen_check_and_optimize_call): Pass additional argument to
        handle_builtin_string_cmp.

2020-02-05  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*pushdi2_rex64 peephole2): Remove.
        (*pushdi2_rex64 peephole2): Unconditionally split after
        epilogue_completed.
        (*ashl<mode>3_doubleword): Ditto.
        (*<shift_insn><mode>3_doubleword): Ditto.

2020-02-05  Michael Meissner  <meissner@linux.ibm.com>

        PR target/93568
        * config/rs6000/rs6000.c (get_vector_offset): Fix

2020-02-05  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/t-gcn-hsa (MULTILIB_OPTIONS): Use / not space.

2020-02-05  David Malcolm  <dmalcolm@redhat.com>

        * doc/analyzer.texi
        (Special Functions for Debugging the Analyzer): Update description
        of __analyzer_dump_exploded_nodes.

2020-02-05  Jakub Jelinek  <jakub@redhat.com>

        PR target/92190
        * config/i386/i386-features.c (ix86_add_reg_usage_to_vzeroupper): Only
        include sets and not clobbers in the vzeroupper pattern.
        * config/i386/sse.md (*avx_vzeroupper): Require in insn condition that
        the parallel has 17 (64-bit) or 9 (32-bit) elts.
        (*avx_vzeroupper_1): New define_insn_and_split.

        PR target/92190
        * recog.c (pass_split_after_reload::gate): For STACK_REGS targets,
        don't run when !optimize.
        (pass_split_before_regstack::gate): For STACK_REGS targets, run even
        when !optimize.

2020-02-05  Richard Biener  <rguenther@suse.de>

        PR middle-end/90648
        * genmatch.c (dt_node::gen_kids_1): Emit number of argument
        checks before matching calls.

2020-02-05  Jakub Jelinek  <jakub@redhat.com>

        * tree-ssa-alias.c (aliasing_matching_component_refs_p): Fix up
        function comment typo.

        PR middle-end/93555
        * omp-simd-clone.c (expand_simd_clones): If simd_clone_mangle or
        simd_clone_create failed when i == 0, adjust clone->nargs by
        clone->inbranch.

2020-02-05  Martin Liska  <mliska@suse.cz>

        PR c++/92717
        * doc/invoke.texi: Document that one should
        not combine ASLR and -fpch.

2020-02-04  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/93538
        * match.pd (addr EQ/NE ptr): Amend to handle &ptr->x EQ/NE ptr.

2020-02-04  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91123
        * tree-ssa-sccvn.c (vn_walk_cb_data::finish): New method.
        (vn_walk_cb_data::last_vuse): New member.
        (vn_walk_cb_data::saved_operands): Likewsie.
        (vn_walk_cb_data::~vn_walk_cb_data): Release saved_operands.
        (vn_walk_cb_data::push_partial_def): Use finish.
        (vn_reference_lookup_2): Update last_vuse and use finish if
        we've saved operands.
        (vn_reference_lookup_3): Use finish and update calls to
        push_partial_defs everywhere.  When translating through
        memcpy or aggregate copies save off operands and alias-set.
        (eliminate_dom_walker::eliminate_stmt): Restore VN_WALKREWRITE
        operation for redundant store removal.

2020-02-04  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/92819
        * tree-ssa-forwprop.c (simplify_vector_constructor): Avoid
        generating more stmts than before.

2020-02-04  Martin Liska  <mliska@suse.cz>

        * config/arm/arm.c (arm_gen_far_branch): Move the function
        outside of selftests.

2020-02-03  Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/rs6000.c (adjust_vec_address_pcrel): New helper
        function to adjust PC-relative vector addresses.
        (rs6000_adjust_vec_address): Call adjust_vec_address_pcrel to
        handle vectors with PC-relative addresses.

2020-02-03  Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/rs6000.c (reg_to_non_prefixed): Add forward
        reference.
        (hard_reg_and_mode_to_addr_mask): Delete.
        (rs6000_adjust_vec_address): If the original vector address
        was REG+REG or REG+OFFSET and the element is not zero, do the add
        of the elements in the original address before adding the offset
        for the vector element.  Use address_to_insn_form to validate the
        address using the register being loaded, rather than guessing
        whether the address is a DS-FORM or DQ-FORM address.

2020-02-03  Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/rs6000.c (get_vector_offset): New helper function
        to calculate the offset in memory from the start of a vector of a
        particular element.  Add code to keep the element number in
        bounds if the element number is variable.
        (rs6000_adjust_vec_address): Move calculation of offset of the
        vector element to get_vector_offset.
        (rs6000_split_vec_extract_var): Do not do the initial AND of
        element here, move the code to get_vector_offset.

2020-02-03  Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/rs6000.c (rs6000_adjust_vec_address): Add some
        gcc_asserts.

2020-02-03  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md: Improve documentation.

2020-02-03  Richard Earnshaw  <rearnsha@arm.com>

        PR target/93548
        * config/arm/t-arm: ($(srcdir)/config/arm/arm-tune.md)
        ($(srcdir)/config/arm/arm-tables.opt): Use move-if-change.

2020-02-03  Andrew Stubbs  <ams@codesourcery.com>

        * config.gcc: Remove "carrizo" support.
        * config/gcn/gcn-opts.h (processor_type): Likewise.
        * config/gcn/gcn.c (gcn_omp_device_kind_arch_isa): Likewise.
        * config/gcn/gcn.opt (gpu_type): Likewise.
        * config/gcn/t-omp-device: Likewise.

2020-02-03  Stam Markianos-Wright  <stam.markianos-wright@arm.com>

        PR target/91816
        * config/arm/arm-protos.h: New function arm_gen_far_branch prototype.
        * config/arm/arm.c (arm_gen_far_branch): New function
        arm_gen_far_branch.
        * config/arm/arm.md: Update b<cond> for Thumb2 range checks.

2020-02-03  Julian Brown  <julian@codesourcery.com>
            Tobias Burnus  <tobias@codesourcery.com>

        * doc/invoke.texi: Update mention of OpenACC version to 2.6.

2020-02-03  Jakub Jelinek  <jakub@redhat.com>

        PR target/93533
        * config/s390/s390.md (popcounthi2_z196): Fix up expander to emit
        valid RTL to sum up the lowest and second lowest bytes of the popcnt
        result.

2020-02-02  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/91333
        * ira-color.c (struct allocno_color_data): Add member
        hard_reg_prefs.
        (init_allocno_threads): Set the member up.
        (bucket_allocno_compare_func): Add compare hard reg
        prefs.

2020-01-31  Sandra Loosemore  <sandra@codesourcery.com>

        nios2: Support for GOT-relative DW_EH_PE_datarel encoding.

        * configure.ac [nios2-*-*]: Check HAVE_AS_NIOS2_GOTOFF_RELOCATION.
        * config.in: Regenerated.
        * configure: Regenerated.
        * config/nios2/nios2.h (ASM_PREFERRED_EH_DATA_FORMAT): Fix handling
        for PIC when HAVE_AS_NIOS2_GOTOFF_RELOCATION.
        (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): New.

2020-02-01  Andrew Burgess  <andrew.burgess@embecosm.com>

        * configure: Regenerate.

2020-01-31  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/91333
        * ira-color.c (bucket_allocno_compare_func): Move conflict hard
        reg preferences comparison up.

2020-01-31  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.h (TARGET_SVE_BF16): New macro.
        * config/aarch64/aarch64-sve-builtins-sve2.h (svcvtnt): Move to
        aarch64-sve-builtins-base.h.
        * config/aarch64/aarch64-sve-builtins-sve2.cc (svcvtnt): Move to
        aarch64-sve-builtins-base.cc.
        * config/aarch64/aarch64-sve-builtins-base.h (svbfdot, svbfdot_lane)
        (svbfmlalb, svbfmlalb_lane, svbfmlalt, svbfmlalt_lane, svbfmmla)
        (svcvtnt): Declare.
        * config/aarch64/aarch64-sve-builtins-base.cc (svbfdot, svbfdot_lane)
        (svbfmlalb, svbfmlalb_lane, svbfmlalt, svbfmlalt_lane, svbfmmla)
        (svcvtnt): New functions.
        * config/aarch64/aarch64-sve-builtins-base.def (svbfdot, svbfdot_lane)
        (svbfmlalb, svbfmlalb_lane, svbfmlalt, svbfmlalt_lane, svbfmmla)
        (svcvtnt): New functions.
        (svcvt): Add a form that converts f32 to bf16.
        * config/aarch64/aarch64-sve-builtins-shapes.h (ternary_bfloat)
        (ternary_bfloat_lane, ternary_bfloat_lanex2, ternary_bfloat_opt_n):
        Declare.
        * config/aarch64/aarch64-sve-builtins-shapes.cc (parse_element_type):
        Treat B as bfloat16_t.
        (ternary_bfloat_lane_base): New class.
        (ternary_bfloat_def): Likewise.
        (ternary_bfloat): New shape.
        (ternary_bfloat_lane_def): New class.
        (ternary_bfloat_lane): New shape.
        (ternary_bfloat_lanex2_def): New class.
        (ternary_bfloat_lanex2): New shape.
        (ternary_bfloat_opt_n_def): New class.
        (ternary_bfloat_opt_n): New shape.
        * config/aarch64/aarch64-sve-builtins.cc (TYPES_cvt_bfloat): New macro.
        * config/aarch64/aarch64-sve.md (@aarch64_sve_<sve_fp_op>vnx4sf)
        (@aarch64_sve_<sve_fp_op>_lanevnx4sf): New patterns.
        (@aarch64_sve_<optab>_trunc<VNx4SF_ONLY:mode><VNx8BF_ONLY:mode>)
        (@cond_<optab>_trunc<VNx4SF_ONLY:mode><VNx8BF_ONLY:mode>): Likewise.
        (*cond_<optab>_trunc<VNx4SF_ONLY:mode><VNx8BF_ONLY:mode>): Likewise.
        (@aarch64_sve_cvtnt<VNx8BF_ONLY:mode>): Likewise.
        * config/aarch64/aarch64-sve2.md (@aarch64_sve2_cvtnt<mode>): Key
        the pattern off the narrow mode instead of the wider one.
        * config/aarch64/iterators.md (VNx8BF_ONLY): New mode iterator.
        (UNSPEC_BFMLALB, UNSPEC_BFMLALT, UNSPEC_BFMMLA): New unspecs.
        (sve_fp_op): Handle them.
        (SVE_BFLOAT_TERNARY_LONG): New int itertor.
        (SVE_BFLOAT_TERNARY_LONG_LANE): Likewise.

2020-01-31  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/arm_sve.h: Include arm_bf16.h.
        * config/aarch64/aarch64-modes.def (BF): Move definition before
        VECTOR_MODES.  Remove separate VECTOR_MODES for V4BF and V8BF.
        (SVE_MODES): Handle BF modes.
        * config/aarch64/aarch64.c (aarch64_classify_vector_mode): Handle
        BF modes.
        (aarch64_full_sve_mode): Likewise.
        * config/aarch64/iterators.md (SVE_STRUCT): Add VNx16BF, VNx24BF
        and VNx32BF.
        (SVE_FULL, SVE_FULL_HSD, SVE_ALL): Add VNx8BF.
        (Vetype, Vesize, Vctype, VEL, Vel, VEL_INT, V128, v128, vwcore)
        (V_INT_EQUIV, v_int_equiv, V_FP_EQUIV, v_fp_equiv, vector_count)
        (insn_length, VSINGLE, vsingle, VPRED, vpred, VDOUBLE): Handle the
        new SVE BF modes.
        * config/aarch64/aarch64-sve-builtins.h (TYPE_bfloat): New
        type_class_index.
        * config/aarch64/aarch64-sve-builtins.cc (TYPES_all_arith): New macro.
        (TYPES_all_data): Add bf16.
        (TYPES_reinterpret1, TYPES_reinterpret): Likewise.
        (register_tuple_type): Increase buffer size.
        * config/aarch64/aarch64-sve-builtins.def (svbfloat16_t): New type.
        (bf16): New type suffix.
        * config/aarch64/aarch64-sve-builtins-base.def (svabd, svadd, svaddv)
        (svcmpeq, svcmpge, svcmpgt, svcmple, svcmplt, svcmpne, svmad, svmax)
        (svmaxv, svmin, svminv, svmla, svmls, svmsb, svmul, svsub, svsubr):
        Change type from all_data to all_arith.
        * config/aarch64/aarch64-sve-builtins-sve2.def (svaddp, svmaxp)
        (svminp): Likewise.

2020-01-31  Dennis Zhang  <dennis.zhang@arm.com>
            Matthew Malcomson  <matthew.malcomson@arm.com>
            Richard Sandiford  <richard.sandiford@arm.com>

        * doc/invoke.texi (f32mm): Document new AArch64 -march= extension.
        * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Define
        __ARM_FEATURE_SVE_MATMUL_INT8, __ARM_FEATURE_SVE_MATMUL_FP32 and
        __ARM_FEATURE_SVE_MATMUL_FP64 as appropriate.  Don't define
        __ARM_FEATURE_MATMUL_FP64.
        * config/aarch64/aarch64-option-extensions.def (fp, simd, fp16)
        (sve): Add AARCH64_FL_F32MM to the list of extensions that should
        be disabled at the same time.
        (f32mm): New extension.
        * config/aarch64/aarch64.h (AARCH64_FL_F32MM): New macro.
        (AARCH64_FL_F64MM): Bump to the next bit up.
        (AARCH64_ISA_F32MM, TARGET_SVE_I8MM, TARGET_F32MM, TARGET_SVE_F32MM)
        (TARGET_SVE_F64MM): New macros.
        * config/aarch64/iterators.md (SVE_MATMULF): New mode iterator.
        (UNSPEC_FMMLA, UNSPEC_SMATMUL, UNSPEC_UMATMUL, UNSPEC_USMATMUL)
        (UNSPEC_TRN1Q, UNSPEC_TRN2Q, UNSPEC_UZP1Q, UNSPEC_UZP2Q, UNSPEC_ZIP1Q)
        (UNSPEC_ZIP2Q): New unspeccs.
        (DOTPROD_US_ONLY, PERMUTEQ, MATMUL, FMMLA): New int iterators.
        (optab, sur, perm_insn): Handle the new unspecs.
        (sve_fp_op): Handle UNSPEC_FMMLA.  Resort.
        * config/aarch64/aarch64-sve.md (@aarch64_sve_ld1ro<mode>): Use
        TARGET_SVE_F64MM instead of separate tests.
        (@aarch64_<DOTPROD_US_ONLY:sur>dot_prod<vsi2qi>): New pattern.
        (@aarch64_<DOTPROD_US_ONLY:sur>dot_prod_lane<vsi2qi>): Likewise.
        (@aarch64_sve_add_<MATMUL:optab><vsi2qi>): Likewise.
        (@aarch64_sve_<FMMLA:sve_fp_op><mode>): Likewise.
        (@aarch64_sve_<PERMUTEQ:optab><mode>): Likewise.
        * config/aarch64/aarch64-sve-builtins.cc (TYPES_s_float): New macro.
        (TYPES_s_float_hsd_integer, TYPES_s_float_sd_integer): Use it.
        (TYPES_s_signed): New macro.
        (TYPES_s_integer): Use it.
        (TYPES_d_float): New macro.
        (TYPES_d_data): Use it.
        * config/aarch64/aarch64-sve-builtins-shapes.h (mmla): Declare.
        (ternary_intq_uintq_lane, ternary_intq_uintq_opt_n, ternary_uintq_intq)
        (ternary_uintq_intq_lane, ternary_uintq_intq_opt_n): Likewise.
        * config/aarch64/aarch64-sve-builtins-shapes.cc (mmla_def): New class.
        (svmmla): New shape.
        (ternary_resize2_opt_n_base): Add TYPE_CLASS2 and TYPE_CLASS3
        template parameters.
        (ternary_resize2_lane_base): Likewise.
        (ternary_resize2_base): New class.
        (ternary_qq_lane_base): Likewise.
        (ternary_intq_uintq_lane_def): Likewise.
        (ternary_intq_uintq_lane): New shape.
        (ternary_intq_uintq_opt_n_def): New class
        (ternary_intq_uintq_opt_n): New shape.
        (ternary_qq_lane_def): Inherit from ternary_qq_lane_base.
        (ternary_uintq_intq_def): New class.
        (ternary_uintq_intq): New shape.
        (ternary_uintq_intq_lane_def): New class.
        (ternary_uintq_intq_lane): New shape.
        (ternary_uintq_intq_opt_n_def): New class.
        (ternary_uintq_intq_opt_n): New shape.
        * config/aarch64/aarch64-sve-builtins-base.h (svmmla, svsudot)
        (svsudot_lane, svtrn1q, svtrn2q, svusdot, svusdot_lane, svusmmla)
        (svuzp1q, svuzp2q, svzip1q, svzip2q): Declare.
        * config/aarch64/aarch64-sve-builtins-base.cc (svdot_lane_impl):
        Generalize to...
        (svdotprod_lane_impl): ...this new class.
        (svmmla_impl, svusdot_impl): New classes.
        (svdot_lane): Update to use svdotprod_lane_impl.
        (svmmla, svsudot, svsudot_lane, svtrn1q, svtrn2q, svusdot)
        (svusdot_lane, svusmmla, svuzp1q, svuzp2q, svzip1q, svzip2q): New
        functions.
        * config/aarch64/aarch64-sve-builtins-base.def (svmmla): New base
        function, with no types defined.
        (svmmla, svusmmla, svsudot, svsudot_lane, svusdot, svusdot_lane): New
        AARCH64_FL_I8MM functions.
        (svmmla): New AARCH64_FL_F32MM function.
        (svld1ro): Depend only on AARCH64_FL_F64MM, not on AARCH64_FL_V8_6.
        (svmmla, svtrn1q, svtrn2q, svuz1q, svuz2q, svzip1q, svzip2q): New
        AARCH64_FL_F64MM function.
        (REQUIRED_EXTENSIONS):

2020-01-31  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn-valu.md (addv64di3_exec): Allow one '0' in each
        alternative only.

2020-01-31  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*movoi_internal_avx): Do not check for
        TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL.  Remove MODE_V8SF handling.
        (*movti_internal): Do not check for
        TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL.
        (*movtf_internal): Move check for TARGET_SSE2 and size optimization
        just after check for TARGET_AVX.
        (*movdf_internal): Ditto.
        * config/i386/mmx.md (*mov<mode>_internal): Do not check for
        TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL.
        * config/i386/sse.md (mov<mode>_internal): Only check
        TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL with V2DFmode.  Move check
        for TARGET_SSE2 and size optimization just after check for TARGET_AVX.
        (<sse>_andnot<mode>3<mask_name>): Move check for
        TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL after check for TARGET_AVX.
        (<code><mode>3<mask_name>): Ditto.
        (*andnot<mode>3): Ditto.
        (*andnottf3): Ditto.
        (*<code><mode>3): Ditto.
        (*<code>tf3): Ditto.
        (*andnot<VI:mode>3): Remove
        TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL handling.
        (<mask_codefor><code><VI48_AVX_AVX512F:mode>3<mask_name>): Ditto.
        (*<code><VI12_AVX_AVX512F:mode>3): Ditto.
        (sse4_1_blendv<ssemodesuffix>): Ditto.
        * config/i386/x86-tune.def (X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL):
        Explain that tune applies to 128bit instructions only.

2020-01-31  Kwok Cheung Yeung  <kcy@codesourcery.com>

        * config/gcn/mkoffload.c (process_asm): Add sgpr_count and vgpr_count
        to definition of hsa_kernel_description.  Parse assembly to find SGPR
        and VGPR count of kernel and store in hsa_kernel_description.

2020-01-31  Tamar Christina  <tamar.christina@arm.com>

        PR rtl-optimization/91838
        * simplify-rtx.c (simplify_binary_operation_1): Update LSHIFTRT case
        to truncate if allowed or reject combination.

2020-01-31  Andrew Stubbs  <ams@codesourcery.com>

        * tree-ssa-loop-ivopts.c (get_iv): Use sizetype for zero-step.
        (find_inv_vars_cb): Likewise.

2020-01-31  David Malcolm  <dmalcolm@redhat.com>

        * calls.c (special_function_p): Split out the check for DECL_NAME
        being non-NULL and fndecl being extern at file scope into a
        new maybe_special_function_p and call it.  Drop check for fndecl
        being non-NULL that was after a usage of DECL_NAME (fndecl).
        * tree.h (maybe_special_function_p): New inline function.

2020-01-30  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn-valu.md (gather<mode>_exec): Move contents ...
        (mask_gather_load<mode>): ... here, and zero-initialize the
        destination.
        (maskload<mode>di): Zero-initialize the destination.
        * config/gcn/gcn.c:

2020-01-30  David Malcolm  <dmalcolm@redhat.com>

        PR analyzer/93356
        * doc/analyzer.texi (Limitations): Note that constraints on
        floating-point values are currently ignored.

2020-01-30  Jakub Jelinek  <jakub@redhat.com>

        PR lto/93384
        * symtab.c (symtab_node::noninterposable_alias): If localalias
        already exists, but is not usable, append numbers after it until
        a unique name is found.  Formatting fix.

        PR middle-end/93505
        * combine.c (simplify_comparison) <case ROTATE>: Punt on out of range
        rotate counts.

2020-01-30  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn.c (print_operand): Handle LTGT.
        * config/gcn/predicates.md (gcn_fp_compare_operator): Allow ltgt.

2020-01-30  Richard Biener  <rguenther@suse.de>

        * tree-pretty-print.c (dump_generic_node): Wrap VECTOR_CST
        and CONSTRUCTOR in _Literal (type) with TDF_GIMPLE.

2020-01-30  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.c (pa_elf_select_rtx_section): Place function pointers
        without a DECL in .data.rel.ro.local.

2020-01-30  Jakub Jelinek  <jakub@redhat.com>

        PR target/93494
        * config/arm/arm.md (uaddvdi4): Actually emit what gen_uaddvsi4
        returned.

        PR target/91824
        * config/i386/sse.md
        (*<sse>_movmsk<ssemodesuffix><avxsizesuffix>_zext): Renamed to ...
        (*<sse>_movmsk<ssemodesuffix><avxsizesuffix>_<u>ext): ... this.  Use
        any_extend code iterator instead of always zero_extend.
        (*<sse>_movmsk<ssemodesuffix><avxsizesuffix>_zext_lt): Renamed to ...
        (*<sse>_movmsk<ssemodesuffix><avxsizesuffix>_<u>ext_lt): ... this.
        Use any_extend code iterator instead of always zero_extend.
        (*<sse>_movmsk<ssemodesuffix><avxsizesuffix>_zext_shift): Renamed to ...
        (*<sse>_movmsk<ssemodesuffix><avxsizesuffix>_<u>ext_shift): ... this.
        Use any_extend code iterator instead of always zero_extend.
        (*sse2_pmovmskb_ext): New define_insn.
        (*sse2_pmovmskb_ext_lt): New define_insn_and_split.

        PR target/91824
        * config/i386/i386.md (*popcountsi2_zext): New define_insn_and_split.
        (*popcountsi2_zext_falsedep): New define_insn.

2020-01-30  Dragan Mladjenovic  <dmladjenovic@wavecomp.com>

        * config.in: Regenerated.
        * configure: Regenerated.

2020-01-29  Tobias Burnus  <tobias@codesourcery.com>

        PR bootstrap/93409
        * config/gcn/gcn-hsa.h (ASM_SPEC): Add -mattr=-code-object-v3 as
        LLVM's assembler changed the default in version 9.

2020-01-24  Jeff Law  <law@redhat.com>

        PR tree-optimization/89689
        * builtins.def (BUILT_IN_OBJECT_SIZE): Make it const rather than pure.

2020-01-29  Richard Sandiford  <richard.sandiford@arm.com>

        Revert:

        2020-01-28  Richard Sandiford  <richard.sandiford@arm.com>

        PR rtl-optimization/87763
        * simplify-rtx.c (simplify_truncation): Extend sign/zero_extract
        simplification to handle subregs as well as bare regs.
        * config/i386/i386.md (*testqi_ext_3): Match QI extracts too.

2020-01-29  Joel Hutton  <Joel.Hutton@arm.com>

        PR target/93221
        * ira.c (ira): Revert use of simplified LRA algorithm.

2020-01-29  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/92706
        * tree-sra.c (struct access): Fields first_link, last_link,
        next_queued and grp_queued renamed to first_rhs_link, last_rhs_link,
        next_rhs_queued and grp_rhs_queued respectively, new fields
        first_lhs_link, last_lhs_link, next_lhs_queued and grp_lhs_queued.
        (struct assign_link): Field next renamed to next_rhs, new field
        next_lhs.  Updated comment.
        (work_queue_head): Renamed to rhs_work_queue_head.
        (lhs_work_queue_head): New variable.
        (add_link_to_lhs): New function.
        (relink_to_new_repr): Also relink LHS lists.
        (add_access_to_work_queue): Renamed to add_access_to_rhs_work_queue.
        (add_access_to_lhs_work_queue): New function.
        (pop_access_from_work_queue): Renamed to
        pop_access_from_rhs_work_queue.
        (pop_access_from_lhs_work_queue): New function.
        (build_accesses_from_assign): Also add links to LHS lists and to LHS
        work_queue.
        (child_would_conflict_in_lacc): Renamed to
        child_would_conflict_in_acc.  Adjusted parameter names.
        (create_artificial_child_access): New parameter set_grp_read, use it.
        (subtree_mark_written_and_enqueue): Renamed to
        subtree_mark_written_and_rhs_enqueue.
        (propagate_subaccesses_across_link): Renamed to
        propagate_subaccesses_from_rhs.
        (propagate_subaccesses_from_lhs): New function.
        (propagate_all_subaccesses): Also propagate subaccesses from LHSs to
        RHSs.

2020-01-29  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/92706
        * tree-sra.c (struct access): Adjust comment of
        grp_total_scalarization.
        (find_access_in_subtree): Look for single children spanning an entire
        access.
        (scalarizable_type_p): Allow register accesses, adjust callers.
        (completely_scalarize): Remove function.
        (scalarize_elem): Likewise.
        (create_total_scalarization_access): Likewise.
        (sort_and_splice_var_accesses): Do not track total scalarization
        flags.
        (analyze_access_subtree): New parameter totally, adjust to new meaning
        of grp_total_scalarization.
        (analyze_access_trees): Pass new parameter to analyze_access_subtree.
        (can_totally_scalarize_forest_p): New function.
        (create_total_scalarization_access): Likewise.
        (create_total_access_and_reshape): Likewise.
        (total_should_skip_creating_access): Likewise.
        (totally_scalarize_subtree): Likewise.
        (analyze_all_variable_accesses): Perform total scalarization after
        subaccess propagation using the new functions above.
        (initialize_constant_pool_replacements): Output initializers by
        traversing the access tree.

2020-01-29  Martin Jambor  <mjambor@suse.cz>

        * tree-sra.c (verify_sra_access_forest): New function.
        (verify_all_sra_access_forests): Likewise.
        (create_artificial_child_access): Set parent.
        (analyze_all_variable_accesses): Call the verifier.

2020-01-28  Jan Hubicka  <hubicka@ucw.cz>

        * cgraph.c (cgraph_edge::resolve_speculation): Only lookup direct edge
        if called on indirect edge.
        (cgraph_edge::redirect_call_stmt_to_callee): Lookup indirect edge of
        speculative call if needed.

2020-01-29  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/93428
        * tree-vect-slp.c (vect_build_slp_tree_2): Compute the load
        permutation when the load node is created.
        (vect_analyze_slp_instance): Re-use it here.

2020-01-28  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-prop.c (update_indirect_edges_after_inlining): Fix warning.

2020-01-28  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/93272
        * ira-lives.c (process_out_of_region_eh_regs): New function.
        (process_bb_node_lives): Call it.

2020-01-28  Jan Hubicka  <hubicka@ucw.cz>

        * coverage.c (read_counts_file): Make error message lowercase.

2020-01-28  Jan Hubicka  <hubicka@ucw.cz>

        * profile-count.c (profile_quality_display_names): Fix ordering.

2020-01-28  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/93318    
        * cgraph.c (cgraph_add_edge_to_call_site_hash): Update call site
        hash only when edge is first within the sequence.
        (cgraph_edge::set_call_stmt): Update handling of speculative calls.
        (symbol_table::create_edge): Do not set target_prob.
        (cgraph_edge::remove_caller): Watch for speculative calls when updating
        the call site hash.
        (cgraph_edge::make_speculative): Drop target_prob parameter.
        (cgraph_edge::speculative_call_info): Remove.
        (cgraph_edge::first_speculative_call_target): New member function.
        (update_call_stmt_hash_for_removing_direct_edge): New function.
        (cgraph_edge::resolve_speculation): Rewrite to new API.
        (cgraph_edge::speculative_call_for_target): New member function.
        (cgraph_edge::make_direct): Rewrite to new API; fix handling of
        multiple speculation targets.
        (cgraph_edge::redirect_call_stmt_to_callee): Likewise; fix updating
        of profile.
        (verify_speculative_call): Verify that targets form an interval.
        * cgraph.h (cgraph_edge::speculative_call_info): Remove.
        (cgraph_edge::first_speculative_call_target): New member function.
        (cgraph_edge::next_speculative_call_target): New member function.
        (cgraph_edge::speculative_call_target_ref): New member function.
        (cgraph_edge;:speculative_call_indirect_edge): New member funtion.
        (cgraph_edge): Remove target_prob.
        * cgraphclones.c (cgraph_node::set_call_stmt_including_clones):
        Fix handling of speculative calls.
        * ipa-devirt.c (ipa_devirt): Fix handling of speculative cals.
        * ipa-fnsummary.c (analyze_function_body): Likewise.
        * ipa-inline.c (speculation_useful_p): Use new speculative call API.
        * ipa-profile.c (dump_histogram): Fix formating.
        (ipa_profile_generate_summary): Watch for overflows.
        (ipa_profile): Do not require probablity to be 1/2; update to new API.
        * ipa-prop.c (ipa_make_edge_direct_to_target): Update to new API.
        (update_indirect_edges_after_inlining): Update to new API.
        * ipa-utils.c (ipa_merge_profiles): Rewrite merging of speculative call
        profiles.
        * profile-count.h: (profile_probability::adjusted): New.
        * tree-inline.c (copy_bb): Update to new speculative call API; fix
        updating of profile.
        * value-prof.c (gimple_ic_transform): Rename to ...
        (dump_ic_profile): ... this one; update dumping.
        (stream_in_histogram_value): Fix formating.
        (gimple_value_profile_transformations): Update.

2020-01-28  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/91461
        * config/i386/i386.md (*movoi_internal_avx): Remove
        TARGET_SSE_TYPELESS_STORES check.
        (*movti_internal): Prefer TARGET_AVX over
        TARGET_SSE_TYPELESS_STORES.
        (*movtf_internal): Likewise.
        * config/i386/sse.md (mov<mode>_internal): Prefer TARGET_AVX over
        TARGET_SSE_TYPELESS_STORES.  Remove "<MODE_SIZE> == 16" check
        from TARGET_SSE_TYPELESS_STORES.

2020-01-28  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-core.h (warning_at): Rename overload to...
        (warning_meta): ...this.
        (emit_diagnostic_valist): Delete decl of overload taking
        diagnostic_metadata.
        * diagnostic.c (emit_diagnostic_valist): Likewise for defn.
        (warning_at): Rename overload taking diagnostic_metadata to...
        (warning_meta): ...this.

2020-01-28  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/93439
        * tree-parloops.c (create_loop_fn): Move clique bookkeeping...
        * tree-cfg.c (move_sese_region_to_fn): ... here.
        (verify_types_in_gimple_reference): Verify used cliques are
        tracked.

2020-01-28  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/91399
        * config/i386/i386-options.c (set_ix86_tune_features): Add an
        argument of a pointer to struct gcc_options and pass it to
        parse_mtune_ctrl_str.
        (ix86_function_specific_restore): Pass opts to
        set_ix86_tune_features.
        (ix86_option_override_internal): Likewise.
        (parse_mtune_ctrl_str): Add an argument of a pointer to struct
        gcc_options and use it for x_ix86_tune_ctrl_string.

2020-01-28  Richard Sandiford  <richard.sandiford@arm.com>

        PR rtl-optimization/87763
        * simplify-rtx.c (simplify_truncation): Extend sign/zero_extract
        simplification to handle subregs as well as bare regs.
        * config/i386/i386.md (*testqi_ext_3): Match QI extracts too.

2020-01-28  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vect-loop.c (vectorizable_reduction): Fail gracefully
        for reduction chains that (now) include a call.

2020-01-28  Richard Sandiford  <richard.sandiford@arm.com>

        PR tree-optimization/92822
        * tree-ssa-forwprop.c (simplify_vector_constructor): When filling
        out the don't-care elements of a vector whose significant elements
        are duplicates, make the don't-care elements duplicates too.

2020-01-28  Richard Sandiford  <richard.sandiford@arm.com>

        PR tree-optimization/93434
        * tree-predcom.c (split_data_refs_to_components): Record which
        components have had aliasing loads removed.  Prevent store-store
        commoning for all such components.

2020-01-28  Jakub Jelinek  <jakub@redhat.com>

        PR target/93418
        * config/i386/i386.c (ix86_fold_builtin) <do_shift>: If mask is not
        -1 or is_vshift is true, use new_vector with number of elts npatterns
        rather than new_unary_operation.

        PR tree-optimization/93454
        * gimple-fold.c (fold_array_ctor_reference): Perform
        elt_size.to_uhwi () just once, instead of calling it in every
        iteration.  Punt if that value is above size of the temporary
        buffer.  Decrease third native_encode_expr argument when
        bufoff + elt_sz is above size of buf.

2020-01-27  Joseph Myers  <joseph@codesourcery.com>

        * config/mips/mips.c (mips_declare_object_name)
        [USE_GNU_UNIQUE_OBJECT]: Support use of gnu_unique_object.

2020-01-27  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/93403
        * tree-profile.c (gimple_init_gcov_profiler): Generate
        both __gcov_indirect_call_profiler_v4 and
        __gcov_indirect_call_profiler_v4_atomic.

2020-01-27  Richard Sandiford  <richard.sandiford@arm.com>

        PR target/92822
        * config/aarch64/aarch64-simd.md (aarch64_get_half<mode>): New
        expander.
        (@aarch64_split_simd_mov<mode>): Use it.
        (aarch64_simd_mov_from_<mode>low): Add a GPR alternative.
        Leave the vec_extract patterns to handle 2-element vectors.
        (aarch64_simd_mov_from_<mode>high): Likewise.
        (vec_extract<VQMOV_NO2E:mode><Vhalf>): New expander.
        (vec_extractv2dfv1df): Likewise.

2020-01-27  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_if_then_else_costs): Match
        jump conditions for *compare_condjump<GPI:mode>.

2020-01-27  David Malcolm  <dmalcolm@redhat.com>

        PR analyzer/93276
        * digraph.cc (test_edge::test_edge): Specify template for base
        class initializer.

2020-01-27  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_rtx_costs): Update mul64 cost.

2020-01-27  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc-protos.h (gen_mlo): Remove.
        (gen_mhi): Likewise.
        * config/arc/arc.c (AUX_MULHI): Define.
        (arc_must_save_reister): Special handling for r58/59.
        (arc_compute_frame_size): Consider mlo/mhi registers.
        (arc_save_callee_saves): Emit fp/sp move only when emit_move
        paramter is true.
        (arc_conditional_register_usage): Remove TARGET_BIG_ENDIAN from
        mlo/mhi name selection.
        (arc_restore_callee_saves): Don't early restore blink when ISR.
        (arc_expand_prologue): Add mlo/mhi saving.
        (arc_expand_epilogue): Add mlo/mhi restoring.
        (gen_mlo): Remove.
        (gen_mhi): Remove.
        * config/arc/arc.h (DBX_REGISTER_NUMBER): Correct register
        numbering when MUL64 option is used.
        (DWARF2_FRAME_REG_OUT): Define.
        * config/arc/arc.md (arc600_stall): New pattern.
        (VUNSPEC_ARC_ARC600_STALL): Define.
        (mulsi64): Use correct mlo/mhi registers.
        (mulsi_600): Clean it up.
        * config/arc/predicates.md (mlo_operand): Remove any dependency on
        TARGET_BIG_ENDIAN.
        (mhi_operand): Likewise.

2020-01-27  Claudiu Zissulescu  <claziss@synopsys.com>
            Petro Karashchenko  <petro.karashchenko@ring.com>

        * config/arc/arc.c (arc_is_uncached_mem_p): Check struct
        attributes if needed.
        (prepare_move_operands): Generate special unspec instruction for
        direct access.
        (arc_isuncached_mem_p): Propagate uncached attribute to each
        structure member.
        * config/arc/arc.md (VUNSPEC_ARC_LDDI): Define.
        (VUNSPEC_ARC_STDI): Likewise.
        (ALLI): New mode iterator.
        (mALLI): New mode attribute.
        (lddi): New instruction pattern.
        (stdi): Likewise.
        (stdidi_split): Split instruction for architectures which are not
        supporting ll64 option.
        (lddidi_split): Likewise.

2020-01-27  Richard Sandiford  <richard.sandiford@arm.com>

        PR rtl-optimization/92989
        * lra-lives.c (process_bb_lives): Update the live-in set before
        processing additional clobbers.

2020-01-27  Richard Sandiford  <richard.sandiford@arm.com>

        PR rtl-optimization/93170
        * cselib.c (cselib_invalidate_regno_val): New function, split out
        from...
        (cselib_invalidate_regno): ...here.
        (cselib_invalidated_by_call_p): New function.
        (cselib_process_insn): Iterate over all the hard-register entries in
        REG_VALUES and invalidate any that cross call-clobbered registers.

2020-01-27  Richard Sandiford  <richard.sandiford@arm.com>

        * dojump.c (split_comparison): Use HONOR_NANS rather than
        HONOR_SNANS when splitting LTGT.

2020-01-27  Martin Liska  <mliska@suse.cz>

        PR driver/91220
        * opts.c (print_filtered_help): Exclude language-specific
        options from --help=common unless enabled in all FEs.

2020-01-27  Martin Liska  <mliska@suse.cz>

        * opts.c (print_help): Exclude params from
        all except --help=param.

2020-01-27  Martin Liska  <mliska@suse.cz>

        PR target/93274
        * config/i386/i386-features.c (make_resolver_func):
        Align the code with ppc64 target implementation.
        Do not generate a unique name for resolver function.

2020-01-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/93397
        * tree-vect-slp.c (vect_analyze_slp_instance): Delay
        converted reduction chain SLP graph adjustment.

2020-01-26  Marek Polacek  <polacek@redhat.com>

        PR sanitizer/93436
        * sanopt.c (sanitize_rewrite_addressable_params): Avoid crash on
        null DECL_NAME.

2020-01-26  Jason Merrill  <jason@redhat.com>

        PR c++/92601
        * tree.c (verify_type_variant): Only verify TYPE_NEEDS_CONSTRUCTING
        of complete types.

2020-01-26  Darius Galis  <darius.galis@cyberthorstudios.com>

        * config/rx/rx.md (setmemsi): Added rx_allow_string_insns constraint
        (rx_setmem): Likewise.

2020-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR target/93412
        * config/i386/i386.md (*addv<dwi>4_doubleword, *subv<dwi>4_doubleword):
        Use nonimmediate_operand instead of x86_64_hilo_general_operand and
        drop <di> from constraint of last operand.

        PR target/93430
        * config/i386/sse.md (*avx_vperm_broadcast_<mode>): Disallow for
        TARGET_AVX2 and V4DFmode not in the split condition, but in the
        pattern condition, though allow { 0, 0, 0, 0 } broadcast always.

2020-01-25  Feng Xue  <fxue@os.amperecomputing.com>

        PR ipa/93166
        * ipa-cp.c (get_info_about_necessary_edges): Remove value
        check assertion.

2020-01-24  Jeff Law  <law@redhat.com>

        PR tree-optimization/92788
        * tree-ssa-threadedge.c (thread_across_edge): Check EDGE_COMPLEX
        not EDGE_ABNORMAL.

2020-01-24  Jakub Jelinek  <jakub@redhat.com>

        PR target/93395
        * config/i386/sse.md (*avx_vperm_broadcast_v4sf,
        *avx_vperm_broadcast_<mode>,
        <sse2_avx_avx512f>_vpermil<mode><mask_name>,
        *<sse2_avx_avx512f>_vpermilp<mode><mask_name>):
        Move before avx2_perm<mode>/avx512f_perm<mode>.

        PR target/93376
        * simplify-rtx.c (simplify_const_unary_operation,
        simplify_const_binary_operation): Punt for mode precision above
        MAX_BITSIZE_MODE_ANY_INT.

2020-01-24  Andrew Pinski  <apinski@marvell.com>

        * config/arm/aarch-cost-tables.h (cortexa57_extra_costs): Change
        alu.shift_reg to 0.

2020-01-24  Jeff Law  <law@redhat.com>

        PR target/13721
        * config/h8300/h8300.c (h8300_print_operand): Only call byte_reg
        for REGs.  Call output_operand_lossage to get more reasonable
        diagnostics.

2020-01-24  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn-valu.md (vec_cmp<mode>di): Use
        gcn_fp_compare_operator.
        (vec_cmpu<mode>di): Use gcn_compare_operator.
        (vec_cmp<u>v64qidi): Use gcn_compare_operator.
        (vec_cmp<mode>di_exec): Use gcn_fp_compare_operator.
        (vec_cmpu<mode>di_exec): Use gcn_compare_operator.
        (vec_cmp<u>v64qidi_exec): Use gcn_compare_operator.
        (vec_cmp<mode>di_dup): Use gcn_fp_compare_operator.
        (vec_cmp<mode>di_dup_exec): Use gcn_fp_compare_operator.
        (vcond<VEC_ALLREG_MODE:mode><VEC_ALLREG_ALT:mode>): Use
        gcn_fp_compare_operator.
        (vcond<VEC_ALLREG_MODE:mode><VEC_ALLREG_ALT:mode>_exec): Use
        gcn_fp_compare_operator.
        (vcondu<VEC_ALLREG_MODE:mode><VEC_ALLREG_INT_MODE:mode>): Use
        gcn_fp_compare_operator.
        (vcondu<VEC_ALLREG_MODE:mode><VEC_ALLREG_INT_MODE:mode>_exec): Use
        gcn_fp_compare_operator.

2020-01-24  Maciej W. Rozycki  <macro@wdc.com>

        * doc/install.texi (Cross-Compiler-Specific Options): Document
        `--with-toolexeclibdir' option.

2020-01-24  Hans-Peter Nilsson  <hp@axis.com>

        * target.def (flags_regnum): Also mention effect on delay slot filling.
        * doc/tm.texi: Regenerate.

2020-01-23  Jeff Law  <law@redhat.com>

        PR translation/90162
        * config/h8300/h8300.c (h8300_option_override): Fix diagnostic text.

2020-01-23  Mikael Tillenius  <mti-1@tillenius.com>

        PR target/92269
        * config/h8300/h8300.h (FUNCTION_PROFILER): Fix emission of
        profiling label

2020-01-23  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/93402
        * postreload.c (reload_combine_recognize_pattern): Don't try to adjust
        USE insns.

2020-01-23  Dragan Mladjenovic  <dmladjenovic@wavecomp.com>

        * config.in: Regenerated.
        * config/mips/linux.h (NEED_INDICATE_EXEC_STACK): Define to 1
        for TARGET_LIBC_GNUSTACK.
        * configure: Regenerated.
        * configure.ac: Define TARGET_LIBC_GNUSTACK if glibc version is
        found to be 2.31 or greater.

2020-01-23  Dragan Mladjenovic  <dmladjenovic@wavecomp.com>

        * config/mips/linux.h (NEED_INDICATE_EXEC_STACK): Define to
        TARGET_SOFT_FLOAT.
        * config/mips/mips.c (TARGET_ASM_FILE_END): Define to ...
        (mips_asm_file_end): New function. Delegate to
        file_end_indicate_exec_stack if NEED_INDICATE_EXEC_STACK is true.
        * config/mips/mips.h (NEED_INDICATE_EXEC_STACK): Define to 0.

2020-01-23  Jakub Jelinek  <jakub@redhat.com>

        PR target/93376
        * config/i386/i386-modes.def (POImode): New mode.
        (MAX_BITSIZE_MODE_ANY_INT): Change from 128 to 160.
        * config/i386/i386.md (DPWI): New mode attribute.
        (addv<mode>4, subv<mode>4): Use <DPWI> instead of <DWI>.
        (QWI): Rename to...
        (QPWI): ... this.  Use POI instead of OI for TImode.
        (*addv<dwi>4_doubleword, *addv<dwi>4_doubleword_1,
        *subv<dwi>4_doubleword, *subv<dwi>4_doubleword_1): Use <QPWI>
        instead of <QWI>.

2020-01-23  Richard Sandiford  <richard.sandiford@arm.com>

        PR target/93341
        * config/aarch64/aarch64.md (UNSPEC_SPECULATION_TRACKER_REV): New
        unspec.
        (speculation_tracker_rev): New pattern.
        * config/aarch64/aarch64-speculation.cc (aarch64_do_track_speculation):
        Use speculation_tracker_rev to track the inverse condition.

2020-01-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/93381
        * tree-ssa-sccvn.c (vn_walk_cb_data::push_partial_def): Take
        alias-set of the def as argument and record the first one.
        (vn_walk_cb_data::first_set): New member.
        (vn_reference_lookup_3): Pass the alias-set of the current def
        to push_partial_def.  Fix alias-set used in the aggregate copy
        case.
        (vn_reference_lookup): Consistently set *last_vuse_ptr.
        * real.c (clear_significand_below): Fix out-of-bound access.

2020-01-23  Jakub Jelinek  <jakub@redhat.com>

        PR target/93346
        * config/i386/i386.md (*bmi2_bzhi_<mode>3_2, *bmi2_bzhi_<mode>3_3):
        New define_insn patterns.

2020-01-23  Richard Sandiford  <richard.sandiford@arm.com>

        * doc/sourcebuild.texi (check-function-bodies): Add an
        optional target/xfail selector.

2020-01-23  Richard Sandiford  <richard.sandiford@arm.com>

        PR rtl-optimization/93124
        * auto-inc-dec.c (merge_in_block): Don't add auto inc/decs to
        bare USE and CLOBBER insns.

2020-01-22  Andrew Pinski  <apinski@marvell.com>

        * config/arc/arc.c (output_short_suffix): Check insn for nullness.

2020-01-22  David Malcolm  <dmalcolm@redhat.com>

        PR analyzer/93307
        * gdbinit.in (break-on-saved-diagnostic): Update for move of
        diagnostic_manager into "ana" namespace.
        * selftest-run-tests.c (selftest::run_tests): Update for move of
        selftest::run_analyzer_selftests to
        ana::selftest::run_analyzer_selftests.

2020-01-22  Richard Sandiford  <richard.sandiford@arm.com>

        * cfgexpand.c (union_stack_vars): Update the size.

2020-01-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/93381
        * tree-ssa-structalias.c (find_func_aliases): Assume offsetting
        throughout, handle all conversions the same.

2020-01-22  Jakub Jelinek  <jakub@redhat.com>

        PR target/93335
        * config/aarch64/aarch64.c (aarch64_expand_subvti): Only use
        gen_subdi3_compare1_imm if low_in2 satisfies aarch64_plus_immediate
        predicate, not whenever it is CONST_INT.  Otherwise, force_reg it.
        Call force_reg on high_in2 unconditionally.

2020-01-22  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/92924
        * profile.c (compute_value_histograms): Divide
        all counter values.

2020-01-22  Jakub Jelinek  <jakub@redhat.com>

        PR target/91298
        * output.h (assemble_name_resolve): Declare.
        * varasm.c (assemble_name_resolve): New function.
        (assemble_name): Use it.
        * config/i386/i386.h (ASM_OUTPUT_SYMBOL_REF): Define.

2020-01-22  Joseph Myers  <joseph@codesourcery.com>

        * doc/sourcebuild.texi (Texinfo Manuals, Front End): Refer to
        update_web_docs_git instead of update_web_docs_svn.

2020-01-21  Andrew Pinski  <apinski@marvell.com>

        PR target/9311
        * config/aarch64/aarch64.md (tlsgd_small_<mode>): Have operand 0
        as PTR mode. Have operand 1 as being modeless, it can be P mode.
        (*tlsgd_small_<mode>): Likewise.
        * config/aarch64/aarch64.c (aarch64_load_symref_appropriately)
        <case SYMBOL_SMALL_TLSGD>: Call gen_tlsgd_small_* with a ptr_mode
        register.  Convert that register back to dest using convert_mode.

2020-01-21  Jim Wilson  <jimw@sifive.com>

        * config/riscv/riscv-sr.c (riscv_sr_match_prologue): Use INTVAL
        instead of XINT.

2020-01-21  H.J. Lu  <hongjiu.lu@intel.com>
            Uros Bizjak    <ubizjak@gmail.com>

        PR target/93319
        * config/i386/i386.c (ix86_tls_module_base): Replace Pmode
        with ptr_mode.
        (legitimize_tls_address): Do GNU2 TLS address computation in
        ptr_mode and zero-extend result to Pmode.
        *  config/i386/i386.md (@tls_dynamic_gnu2_64_<mode>): Replace
        :P with :PTR and Pmode with ptr_mode.
        (*tls_dynamic_gnu2_lea_64_<mode>): Likewise.
        (*tls_dynamic_gnu2_call_64_<mode>): Likewise.
        (*tls_dynamic_gnu2_combine_64_<mode>): Likewise.

2020-01-21  Jakub Jelinek  <jakub@redhat.com>

        PR target/93333
        * config/riscv/riscv.c (riscv_rtx_costs) <case ZERO_EXTRACT>: Verify
        the last two operands are CONST_INT_P before using them as such.

2020-01-21  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve-builtins.def: Use get_typenode_from_name
        to get the integer element types.

2020-01-21  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve-builtins.h
        (function_expander::convert_to_pmode): Declare.
        * config/aarch64/aarch64-sve-builtins.cc
        (function_expander::convert_to_pmode): New function.
        (function_expander::get_contiguous_base): Use it.
        (function_expander::prepare_gather_address_operands): Likewise.
        * config/aarch64/aarch64-sve-builtins-sve2.cc
        (svwhilerw_svwhilewr_impl::expand): Likewise.

2020-01-21  Szabolcs Nagy  <szabolcs.nagy@arm.com>

        PR target/92424
        * config/aarch64/aarch64.c (aarch64_declare_function_name): Set
        cfun->machine->label_is_assembled.
        (aarch64_print_patchable_function_entry): New.
        (TARGET_ASM_PRINT_PATCHABLE_FUNCTION_ENTRY): Define.
        * config/aarch64/aarch64.h (struct machine_function): New field,
        label_is_assembled.

2020-01-21  David Malcolm  <dmalcolm@redhat.com>

        PR ipa/93315
        * ipa-profile.c (ipa_profile): Delete call_sums and set it to
        NULL on exit.

2020-01-18  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/93318    
        * cgraph.c (cgraph_edge::resolve_speculation,
        cgraph_edge::redirect_call_stmt_to_callee): Fix update of
        call_stmt_site_hash.

2020-01-21  Martin Liska  <mliska@suse.cz>

        * config/rs6000/rs6000.c (common_mode_defined): Remove
        unused variable.

2020-01-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/92328
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Preserve
        type when value-numbering same-sized store by inserting a
        VIEW_CONVERT_EXPR.
        (eliminate_dom_walker::eliminate_stmt): When eliminating
        a redundant store handle bit-reinterpretation of the same value.

2020-01-21  Andrew Pinski  <apinski@marvel.com>

        PR tree-opt/93321
        * tree-into-ssa.c (prepare_block_for_update_1): Split out
        from ...
        (prepare_block_for_update): This.  Use a worklist instead of
        recursing.

2020-01-21  Mihail-Calin Ionescu  <mihail.ionescu@arm.com>

        * gcc/config/arm/arm.c (clear_operation_p):
        Initialise last_regno, skip first iteration
        based on the first_set value and use ints instead
        of the unnecessary HOST_WIDE_INTs.

2020-01-21  Jakub Jelinek  <jakub@redhat.com>

        PR target/93073
        * config/rs6000/rs6000.c (rs6000_emit_cmove): If using fsel, punt for
        compare_mode other than SFmode or DFmode.

2020-01-21  Kito Cheng  <kito.cheng@sifive.com>

        PR target/93304
        * config/riscv/riscv-protos.h (riscv_hard_regno_rename_ok): New.
        * config/riscv/riscv.c (riscv_hard_regno_rename_ok): New.
        * config/riscv/riscv.h (HARD_REGNO_RENAME_OK): Defined.

2020-01-20  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (neoversen1_tunings): Set jump_align to 4.

2020-01-20  Andrew Pinski  <apinski@marvell.com>

        PR middle-end/93242
        * targhooks.c (default_print_patchable_function_entry): Use
        output_asm_insn to emit the nop instruction.

2020-01-20  Fangrui Song  <maskray@google.com>

        PR middle-end/93194
        * targhooks.c (default_print_patchable_function_entry): Align to
        POINTER_SIZE.

2020-01-20  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/93319
        * config/i386/i386.c (legitimize_tls_address): Pass Pmode to
        gen_tls_dynamic_gnu2_64.  Compute GNU2 TLS address in ptr_mode.
        * config/i386/i386.md (tls_dynamic_gnu2_64): Renamed to ...
        (@tls_dynamic_gnu2_64_<mode>): This.  Replace DI with P.
        (*tls_dynamic_gnu2_lea_64): Renamed to ...
        (*tls_dynamic_gnu2_lea_64_<mode>): This.  Replace DI with P.
        Remove the {q} suffix from lea.
        (*tls_dynamic_gnu2_call_64): Renamed to ...
        (*tls_dynamic_gnu2_call_64_<mode>): This.  Replace DI with P.
        (*tls_dynamic_gnu2_combine_64): Renamed to ...
        (*tls_dynamic_gnu2_combine_64_<mode>): This.  Replace DI with P.
        Pass Pmode to gen_tls_dynamic_gnu2_64.

2020-01-20  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.h (SLOW_BYTE_ACCESS): Set to 1.

2020-01-20  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve-builtins-base.cc
        (svld1ro_impl::memory_vector_mode): Remove parameter name.

2020-01-20  Richard Biener  <rguenther@suse.de>

        PR debug/92763
        * dwarf2out.c (prune_unused_types): Unconditionally mark
        called function DIEs.

2020-01-20  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/93199
        * tree-eh.c (struct leh_state): Add
        new field outer_non_cleanup.
        (cleanup_is_dead_in): Pass leh_state instead
        of eh_region.  Add a checking that state->outer_non_cleanup
        points to outer non-clean up region.
        (lower_try_finally): Record outer_non_cleanup
        for this_state.
        (lower_catch): Likewise.
        (lower_eh_filter): Likewise.
        (lower_eh_must_not_throw): Likewise.
        (lower_cleanup): Likewise.

2020-01-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/93094
        * tree-vectorizer.h (vect_loop_versioning): Adjust.
        (vect_transform_loop): Likewise.
        * tree-vectorizer.c (try_vectorize_loop_1): Pass down
        loop_vectorized_call to vect_transform_loop.
        * tree-vect-loop.c (vect_transform_loop): Pass down
        loop_vectorized_call to vect_loop_versioning.
        * tree-vect-loop-manip.c (vect_loop_versioning): Use
        the earlier discovered loop_vectorized_call.

2020-01-19  Eric S. Raymond <esr@thyrsus.com>

        * doc/contribute.texi: Update for SVN -> Git transition.
        * doc/install.texi: Likewise.

2020-01-18  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/93318
        * cgraph.c (cgraph_edge::make_speculative): Increase number of
        speculative targets.
        (verify_speculative_call): New function
        (cgraph_node::verify_node): Use it.
        * ipa-profile.c (ipa_profile): Fix formating; do not set number of
        speculations.

2020-01-18  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/93318
        * cgraph.c (cgraph_edge::resolve_speculation): Fix foramting.
        (cgraph_edge::make_direct): Remove all indirect targets.
        (cgraph_edge::redirect_call_stmt_to_callee): Use make_direct..
        (cgraph_node::verify_node): Verify that only one call_stmt or
        lto_stmt_uid is set.
        * cgraphclones.c (cgraph_edge::clone): Set only one call_stmt or
        lto_stmt_uid.
        * lto-cgraph.c (lto_output_edge): Simplify streaming of stmt.
        (lto_output_ref): Simplify streaming of stmt.
        * lto-streamer-in.c (fixup_call_stmt_edges_1): Clear lto_stmt_uid.

2020-01-18  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64-sve-builtins-base.cc (memory_vector_mode):
        Mark parameter unused.

2020-01-18  Hans-Peter Nilsson  <hp@axis.com>

        * config.gcc <obsolete targets>: Add crisv32-*-* and cris-*-linux*

2019-01-18  Gerald Pfeifer  <gerald@pfeifer.com>

        * varpool.c (ctor_useable_for_folding_p): Fix grammar.

2020-01-18  Iain Sandoe  <iain@sandoe.co.uk>

        * Makefile.in: Add coroutine-passes.o.
        * builtin-types.def (BT_CONST_SIZE): New.
        (BT_FN_BOOL_PTR): New.
        (BT_FN_PTR_PTR_CONST_SIZE_BOOL): New.
        * builtins.def (DEF_COROUTINE_BUILTIN): New.
        * coroutine-builtins.def: New file.
        * coroutine-passes.cc: New file.
        * function.h (struct GTY function): Add a bit to indicate that the
        function is a coroutine component.
        * internal-fn.c (expand_CO_FRAME): New.
        (expand_CO_YIELD): New.
        (expand_CO_SUSPN): New.
        (expand_CO_ACTOR): New.
        * internal-fn.def (CO_ACTOR): New.
        (CO_YIELD): New.
        (CO_SUSPN): New.
        (CO_FRAME): New.
        * passes.def: Add pass_coroutine_lower_builtins,
        pass_coroutine_early_expand_ifns.
        * tree-pass.h (make_pass_coroutine_lower_builtins): New.
        (make_pass_coroutine_early_expand_ifns): New.
        * doc/invoke.texi: Document the fcoroutines command line
        switch.

2020-01-18  Jakub Jelinek  <jakub@redhat.com>

        * config/arm/vfp.md (*clear_vfp_multiple): Remove unused variable.

        PR target/93312
        * config/arm/arm.c (clear_operation_p): Don't use REGNO until
        after checking the argument is a REG.  Don't use REGNO (reg)
        again to set last_regno, reuse regno variable instead.

2020-01-17  David Malcolm  <dmalcolm@redhat.com>

        * doc/analyzer.texi (Limitations): Add note about NaN.

2020-01-17  Mihail-Calin Ionescu  <mihail.ionescu@arm.com>
            Sudakshina Das  <sudi.das@arm.com>

        * config/arm/arm.md (ashldi3): Generate thumb2_lsll for both reg
        and valid immediate.
        (ashrdi3): Generate thumb2_asrl for both reg and valid immediate.
        (lshrdi3): Generate thumb2_lsrl for valid immediates.
        * config/arm/constraints.md (Pg): New.
        * config/arm/predicates.md (long_shift_imm): New.
        (arm_reg_or_long_shift_imm): Likewise.
        * config/arm/thumb2.md (thumb2_asrl): New immediate alternative.
        (thumb2_lsll): Likewise.
        (thumb2_lsrl): New.

2020-01-17  Mihail-Calin Ionescu  <mihail.ionescu@arm.com>
            Sudakshina Das  <sudi.das@arm.com>

        * config/arm/arm.md (ashldi3): Generate thumb2_lsll for TARGET_HAVE_MVE.
        (ashrdi3): Generate thumb2_asrl for TARGET_HAVE_MVE.
        * config/arm/arm.c (arm_hard_regno_mode_ok): Allocate even odd
        register pairs for doubleword quantities for ARMv8.1M-Mainline.
        * config/arm/thumb2.md (thumb2_asrl): New.
        (thumb2_lsll): Likewise.

2020-01-17  Jakub Jelinek  <jakub@redhat.com>

        * config/arm/arm.c (cmse_nonsecure_call_inline_register_clear): Remove
        unused variable.

2020-01-17  Alexander Monakov  <amonakov@ispras.ru>

        * gdbinit.in (help-gcc-hooks): New command.
        (pp, pr, prl, pt, pct, pgg, pgq, pgs, pge, pmz, ptc, pdn, ptn, pdd, prc,
        pi, pbm, pel, trt): Take $arg0 instead of $ if supplied. Update
        documentation.

2020-01-17  Matthew Malcomson  <matthew.malcomson@arm.com>

        * config/aarch64/aarch64-sve.md (@aarch64_sve_ld1ro<mode>): Use the
        correct target macro.

2020-01-17  Matthew Malcomson  <matthew.malcomson@arm.com>

        * config/aarch64/aarch64-protos.h
        (aarch64_sve_ld1ro_operand_p): New.
        * config/aarch64/aarch64-sve-builtins-base.cc
        (class load_replicate): New.
        (class svld1ro_impl): New.
        (class svld1rq_impl): Change to inherit from load_replicate.
        (svld1ro): New sve intrinsic function base.
        * config/aarch64/aarch64-sve-builtins-base.def (svld1ro):
        New DEF_SVE_FUNCTION.
        * config/aarch64/aarch64-sve-builtins-base.h
        (svld1ro): New decl.
        * config/aarch64/aarch64-sve-builtins.cc
        (function_expander::add_mem_operand): Modify assert to allow
        OImode.
        * config/aarch64/aarch64-sve.md (@aarch64_sve_ld1ro<mode>): New
        pattern.
        * config/aarch64/aarch64.c
        (aarch64_sve_ld1rq_operand_p): Implement in terms of ...
        (aarch64_sve_ld1rq_ld1ro_operand_p): This.
        (aarch64_sve_ld1ro_operand_p): New.
        * config/aarch64/aarch64.md (UNSPEC_LD1RO): New unspec.
        * config/aarch64/constraints.md (UOb,UOh,UOw,UOd): New.
        * config/aarch64/predicates.md
        (aarch64_sve_ld1ro_operand_{b,h,w,d}): New.

2020-01-17  Matthew Malcomson  <matthew.malcomson@arm.com>

        * config/aarch64/aarch64-c.c (_ARM_FEATURE_MATMUL_FLOAT64):
        Introduce this ACLE specified predefined macro.
        * config/aarch64/aarch64-option-extensions.def (f64mm): New.
        (fp): Disabling this disables f64mm.
        (simd): Disabling this disables f64mm.
        (fp16): Disabling this disables f64mm.
        (sve): Disabling this disables f64mm.
        * config/aarch64/aarch64.h (AARCH64_FL_F64MM): New.
        (AARCH64_ISA_F64MM): New.
        (TARGET_F64MM): New.
        * doc/invoke.texi (f64mm): Document new option.

2020-01-17  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (generic_tunings): Add branch fusion.
        (neoversen1_tunings): Likewise.

2020-01-17  Wilco Dijkstra  <wdijkstr@arm.com>

        PR target/92692
        * config/aarch64/aarch64.c (aarch64_split_compare_and_swap)
        Add assert to ensure prolog has been emitted.
        (aarch64_split_atomic_op): Likewise.
        * config/aarch64/atomics.md (aarch64_compare_and_swap<mode>)
        Use epilogue_completed rather than reload_completed.
        (aarch64_atomic_exchange<mode>): Likewise.
        (aarch64_atomic_<atomic_optab><mode>): Likewise.
        (atomic_nand<mode>): Likewise.
        (aarch64_atomic_fetch_<atomic_optab><mode>): Likewise.
        (atomic_fetch_nand<mode>): Likewise.
        (aarch64_atomic_<atomic_optab>_fetch<mode>): Likewise.
        (atomic_nand_fetch<mode>): Likewise.

2020-01-17  Richard Sandiford  <richard.sandiford@arm.com>

        PR target/93133
        * config/aarch64/aarch64.h (REVERSIBLE_CC_MODE): Return false
        for FP modes.
        (REVERSE_CONDITION): Delete.
        * config/aarch64/iterators.md (CC_ONLY): New mode iterator.
        (CCFP_CCFPE): Likewise.
        (e): New mode attribute.
        * config/aarch64/aarch64.md (ccmp<GPI:mode>): Rename to...
        (@ccmp<CC_ONLY:mode><GPI:mode>): ...this, using CC_ONLY instead of CC.
        (fccmp<GPF:mode>, fccmpe<GPF:mode>): Merge into...
        (@ccmp<CCFP_CCFPE:mode><GPF:mode>): ...this combined pattern.
        (@ccmp<CC_ONLY:mode><GPI:mode>_rev): New pattern.
        (@ccmp<CCFP_CCFPE:mode><GPF:mode>_rev): Likewise.
        * config/aarch64/aarch64.c (aarch64_gen_compare_reg): Update
        name of generator from gen_ccmpdi to gen_ccmpccdi.
        (aarch64_gen_ccmp_next): Use code_for_ccmp.  If we want to reverse
        the previous comparison but aren't able to, use the new ccmp_rev
        patterns instead.

2020-01-17  Richard Sandiford  <richard.sandiford@arm.com>

        * gimplify.c (gimplify_return_expr): Use poly_int_tree_p rather
        than testing directly for INTEGER_CST.
        (gimplify_target_expr, gimplify_omp_depend): Likewise.

2020-01-17  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/93292
        * tree-vect-stmts.c (vectorizable_comparison): Punt also if
        get_vectype_for_scalar_type returns NULL.

2020-01-16  Jan Hubicka  <hubicka@ucw.cz>

        * params.opt (-param=max-predicted-iterations): Increase range from 0.
        * predict.c (estimate_loops): Add 1 to param_max_predicted_iterations.

2020-01-16  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-fnsummary.c (estimate_calls_size_and_time): Fix formating of
        dump.
        * params.opt: (max-predicted-iterations): Set bounds.
        * predict.c (real_almost_one, real_br_prob_base,
        real_inv_br_prob_base, real_one_half, real_bb_freq_max): Remove.
        (propagate_freq): Add max_cyclic_prob parameter; cap cyclic
        probabilities; do not truncate to reg_br_prob_bases.
        (estimate_loops_at_level): Pass max_cyclic_prob.
        (estimate_loops): Compute max_cyclic_prob.
        (estimate_bb_frequencies): Do not initialize real_*; update calculation
        of back edge prob.
        * profile-count.c (profile_probability::to_sreal): New.
        * profile-count.h (class sreal): Move up in file.
        (profile_probability::to_sreal): Declare.

2020-01-16  Stam Markianos-Wright  <stam.markianos-wright@arm.com>

        * config/arm/arm.c
        (arm_invalid_conversion): New function for target hook.
        (arm_invalid_unary_op): New function for target hook.
        (arm_invalid_binary_op): New function for target hook.

2020-01-16  Stam Markianos-Wright  <stam.markianos-wright@arm.com>

        * config.gcc: Add arm_bf16.h.
        * config/arm/arm-builtins.c (arm_mangle_builtin_type): Fix comment.
        (arm_simd_builtin_std_type): Add BFmode.
        (arm_init_simd_builtin_types): Define element types for vector types.
        (arm_init_bf16_types): New function.
        (arm_init_builtins): Add arm_init_bf16_types function call.
        * config/arm/arm-modes.def: Add BFmode and V4BF, V8BF vector modes.
        * config/arm/arm-simd-builtin-types.def: Add V4BF, V8BF.
        * config/arm/arm.c (aapcs_vfp_sub_candidate):  Add BFmode.
        (arm_hard_regno_mode_ok): Add BFmode and tidy up statements.
        (arm_vector_mode_supported_p): Add V4BF, V8BF.
        (arm_mangle_type):  Add __bf16.
        * config/arm/arm.h: Add V4BF, V8BF to VALID_NEON_DREG_MODE, 
        VALID_NEON_QREG_MODE respectively. Add export arm_bf16_type_node,
        arm_bf16_ptr_type_node.
        * config/arm/arm.md: Add BFmode to movhf expand, mov pattern and
        define_split between ARM registers.
        * config/arm/arm_bf16.h: New file.
        * config/arm/arm_neon.h: Add arm_bf16.h and Bfloat vector types.
        * config/arm/iterators.md: (ANY64_BF, VDXMOV, VHFBF, HFBF, fporbf): New.
        (VQXMOV): Add V8BF.
        * config/arm/neon.md: Add BF vector types to movhf NEON move patterns.
        * config/arm/vfp.md: Add BFmode to movhf patterns.

2020-01-16  Mihail Ionescu  <mihail.ionescu@arm.com>
            Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * config/arm/arm-cpus.in (mve, mve_float): New features.
        (dsp, mve, mve.fp): New options.
        * config/arm/arm.h (TARGET_HAVE_MVE, TARGET_HAVE_MVE_FLOAT): Define.
        * config/arm/t-rmprofile: Map v8.1-M multilibs to v8-M.
        * doc/invoke.texi: Document the armv8.1-m mve and dps options.

2020-01-16  Mihail-Calin Ionescu  <mihail.ionescu@arm.com>
            Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm-cpus.in (ARMv8_1m_main): Redefine as an extension to
        Armv8-M Mainline.
        * config/arm/arm.c (arm_options_perform_arch_sanity_checks): Remove
        error for using -mcmse when targeting Armv8.1-M Mainline.

2020-01-16  Mihail-Calin Ionescu  <mihail.ionescu@arm.com>
            Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.md (nonsecure_call_internal): Do not force memory
        address in r4 when targeting Armv8.1-M Mainline.
        (nonsecure_call_value_internal): Likewise.
        * config/arm/thumb2.md (nonsecure_call_reg_thumb2): Make memory address
        a register match_operand again.  Emit BLXNS when targeting
        Armv8.1-M Mainline.
        (nonsecure_call_value_reg_thumb2): Likewise.

2020-01-16  Mihail-Calin Ionescu  <mihail.ionescu@arm.com>
            Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.c (arm_add_cfa_adjust_cfa_note): Declare early.
        (cmse_nonsecure_call_inline_register_clear): Define new lazy_fpclear
        variable as true when floating-point ABI is not hard.  Replace
        check against TARGET_HARD_FLOAT_ABI by checks against lazy_fpclear.
        Generate VLSTM and VLLDM instruction respectively before and
        after a function call to cmse_nonsecure_call function.
        * config/arm/unspecs.md (VUNSPEC_VLSTM): Define unspec.
        (VUNSPEC_VLLDM): Likewise.
        * config/arm/vfp.md (lazy_store_multiple_insn): New define_insn.
        (lazy_load_multiple_insn): Likewise.

2020-01-16  Mihail-Calin Ionescu  <mihail.ionescu@arm.com>
            Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.c (vfp_emit_fstmd): Declare early.
        (arm_emit_vfp_multi_reg_pop): Likewise.
        (cmse_nonsecure_call_inline_register_clear): Abstract number of VFP
        registers to clear in max_fp_regno.  Emit VPUSH and VPOP to save and
        restore callee-saved VFP registers.

2020-01-16  Mihail-Calin Ionescu  <mihail.ionescu@arm.com>
            Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.c (arm_emit_multi_reg_pop): Declare early.
        (cmse_nonsecure_call_clear_caller_saved): Rename into ...
        (cmse_nonsecure_call_inline_register_clear): This.  Save and clear
        callee-saved GPRs as well as clear ip register before doing a nonsecure
        call then restore callee-saved GPRs after it when targeting
        Armv8.1-M Mainline.
        (arm_reorg): Adapt to function rename.

2020-01-16  Mihail-Calin Ionescu  <mihail.ionescu@arm.com>
            Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm-protos.h (clear_operation_p): Adapt prototype.
        * config/arm/arm.c (clear_operation_p): Extend to be able to check a
        clear_vfp_multiple pattern based on a new vfp parameter.
        (cmse_clear_registers): Generate VSCCLRM to clear VFP registers when
        targeting Armv8.1-M Mainline.
        (cmse_nonsecure_entry_clear_before_return): Clear VFP registers
        unconditionally when targeting Armv8.1-M Mainline architecture.  Check
        whether VFP registers are available before looking call_used_regs for a
        VFP register.
        * config/arm/predicates.md (clear_multiple_operation): Adapt to change
        of prototype of clear_operation_p.
        (clear_vfp_multiple_operation): New predicate.
        * config/arm/unspecs.md (VUNSPEC_VSCCLRM_VPR): New volatile unspec.
        * config/arm/vfp.md (clear_vfp_multiple): New define_insn.

2020-01-16  Mihail-Calin Ionescu  <mihail.ionescu@arm.com>
            Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm-protos.h (clear_operation_p): Declare.
        * config/arm/arm.c (clear_operation_p): New function.
        (cmse_clear_registers): Generate clear_multiple instruction pattern if
        targeting Armv8.1-M Mainline or successor.
        (output_return_instruction): Only output APSR register clearing if
        Armv8.1-M Mainline instructions not available.
        (thumb_exit): Likewise.
        * config/arm/predicates.md (clear_multiple_operation): New predicate.
        * config/arm/thumb2.md (clear_apsr): New define_insn.
        (clear_multiple): Likewise.
        * config/arm/unspecs.md (VUNSPEC_CLRM_APSR): New volatile unspec.

2020-01-16  Mihail-Calin Ionescu  <mihail.ionescu@arm.com>
            Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm.c (fp_sysreg_names): Declare and define.
        (use_return_insn): Also return false for Armv8.1-M Mainline.
        (output_return_instruction): Skip FPSCR clearing if Armv8.1-M
        Mainline instructions are available.
        (arm_compute_frame_layout): Allocate space in frame for FPCXTNS
        when targeting Armv8.1-M Mainline Security Extensions.
        (arm_expand_prologue): Save FPCXTNS if this is an Armv8.1-M
        Mainline entry function.
        (cmse_nonsecure_entry_clear_before_return): Clear IP and r4 if
        targeting Armv8.1-M Mainline or successor.
        (arm_expand_epilogue): Fix indentation of caller-saved register
        clearing.  Restore FPCXTNS if this is an Armv8.1-M Mainline
        entry function.
        * config/arm/arm.h (TARGET_HAVE_FP_CMSE): New macro.
        (FP_SYSREGS): Likewise.
        (enum vfp_sysregs_encoding): Define enum.
        (fp_sysreg_names): Declare.
        * config/arm/unspecs.md (VUNSPEC_VSTR_VLDR): New volatile unspec.
        * config/arm/vfp.md (push_fpsysreg_insn): New define_insn.
        (pop_fpsysreg_insn): Likewise.

2020-01-16  Mihail-Calin Ionescu  <mihail.ionescu@arm.com>
            Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * config/arm/arm-cpus.in (armv8_1m_main): New feature.
        (ARMv4, ARMv4t, ARMv5t, ARMv5te, ARMv5tej, ARMv6, ARMv6j, ARMv6k,
        ARMv6z, ARMv6kz, ARMv6zk, ARMv6t2, ARMv6m, ARMv7, ARMv7a, ARMv7ve,
        ARMv7r, ARMv7m, ARMv7em, ARMv8a, ARMv8_1a, ARMv8_2a, ARMv8_3a,
        ARMv8_4a, ARMv8_5a, ARMv8m_base, ARMv8m_main, ARMv8r): Reindent.
        (ARMv8_1m_main): New feature group.
        (armv8.1-m.main): New architecture.
        * config/arm/arm-tables.opt: Regenerate.
        * config/arm/arm.c (arm_arch8_1m_main): Define and default initialize.
        (arm_option_reconfigure_globals): Initialize arm_arch8_1m_main.
        (arm_options_perform_arch_sanity_checks): Error out when targeting
        Armv8.1-M Mainline Security Extensions.
        * config/arm/arm.h (arm_arch8_1m_main): Declare.

2020-01-16  Stam Markianos-Wright  <stam.markianos-wright@arm.com>

        * config/aarch64/aarch64-simd-builtins.def (aarch64_bfdot,
        aarch64_bfdot_lane, aarch64_bfdot_laneq): New.
        * config/aarch64/aarch64-simd.md (aarch64_bfdot, aarch64_bfdot_lane,
        aarch64_bfdot_laneq): New.
        * config/aarch64/arm_bf16.h (vbfdot_f32, vbfdotq_f32,
        vbfdot_lane_f32, vbfdotq_lane_f32, vbfdot_laneq_f32,
        vbfdotq_laneq_f32): New.
        * config/aarch64/iterators.md (UNSPEC_BFDOT, Vbfdottype,
        VBFMLA_W, VBF): New.
        (isquadop): Add V4BF, V8BF.

2020-01-16  Stam Markianos-Wright  <stam.markianos-wright@arm.com>

        * config/aarch64/aarch64-builtins.c: (enum aarch64_type_qualifiers):
        New qualifier_lane_quadtup_index, TYPES_TERNOP_SSUS,
        TYPES_QUADOPSSUS_LANE_QUADTUP, TYPES_QUADOPSSSU_LANE_QUADTUP.
        (aarch64_simd_expand_args): Add case SIMD_ARG_LANE_QUADTUP_INDEX.
        (aarch64_simd_expand_builtin): Add qualifier_lane_quadtup_index.
        * config/aarch64/aarch64-simd-builtins.def (usdot, usdot_lane,
        usdot_laneq, sudot_lane,sudot_laneq): New.
        * config/aarch64/aarch64-simd.md (aarch64_usdot): New.
        (aarch64_<sur>dot_lane): New.
        * config/aarch64/arm_neon.h (vusdot_s32): New.
        (vusdotq_s32): New.
        (vusdot_lane_s32): New.
        (vsudot_lane_s32): New.
        * config/aarch64/iterators.md (DOTPROD_I8MM): New iterator.
        (UNSPEC_USDOT, UNSPEC_SUDOT): New unspecs.

2020-01-16  Martin Liska  <mliska@suse.cz>

        * value-prof.c (dump_histogram_value): Fix
        obvious spacing issue.

2020-01-16  Andrew Pinski  <apinski@marvell.com>

        * tree-ssa-sccvn.c(vn_reference_lookup_3): Check lhs for
        !storage_order_barrier_p.

2020-01-16  Andrew Pinski  <apinski@marvell.com>

        * sched-int.h (_dep): Add unused bit-field field for the padding.
        * sched-deps.c (init_dep_1): Init unused field.

2020-01-16  Andrew Pinski  <apinski@marvell.com>

        * optabs.h (create_expand_operand): Initialize target field also.

2020-01-16  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        PR tree-optimization/92429
        * tree-ssa-loop-niter.h (simplify_replace_tree): Add parameter.
        * tree-ssa-loop-niter.c (simplify_replace_tree): Add parameter to
        control folding.
        * tree-vect-loop.c (update_epilogue_vinfo): Do not fold when replacing
        tree.

2020-01-16  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_split_sve_subreg_move): Apply
        aarch64_sve_int_mode to each mode.

2020-01-15  David Malcolm  <dmalcolm@redhat.com>

        * doc/analyzer.texi (Overview): Add note about
        -fdump-ipa-analyzer.

2020-01-15  Wilco Dijkstra  <wdijkstr@arm.com>

        PR tree-optimization/93231
        * tree-ssa-forwprop.c (optimize_count_trailing_zeroes): Check
        input_type is unsigned.  Use tree_to_shwi for shift constant.
        Check CST_STRING element size is CHAR_TYPE_SIZE bits.
        (simplify_count_trailing_zeroes): Add test to handle known non-zero
        inputs more efficiently.

2020-01-15  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*movsf_internal): Do not require
        SSE2 ISA for alternatives 14 and 15.

2020-01-15  Richard Biener  <rguenther@suse.de>

        PR middle-end/93273
        * tree-eh.c (sink_clobbers): If we already visited the destination
        block do not defer insertion.
        (pass_lower_eh_dispatch::execute): Maintain BB_VISITED for
        the purpose of defered insertion.

2020-01-15  Jakub Jelinek  <jakub@redhat.com>

        * BASE-VER: Bump to 10.0.1.

2020-01-15  Richard Sandiford  <richard.sandiford@arm.com>

        PR tree-optimization/93247
        * tree-vect-loop.c (update_epilogue_loop_vinfo): Check the access
        type of the stmt that we're going to vectorize.

2020-01-15  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vect-slp.c (vectorize_slp_instance_root_stmt): Use a
        VIEW_CONVERT_EXPR if the vectorized constructor has a diffeent
        type from the lhs.

2020-01-15  Martin Liska  <mliska@suse.cz>

        * ipa-profile.c (ipa_profile_read_edge_summary): Do not allow
        2 calls of streamer_read_hwi in a function call.

2020-01-15  Richard Biener  <rguenther@suse.de>

        * alias.c (record_alias_subset): Avoid redundant work when
        subset is already recorded.

2020-01-14  David Malcolm  <dmalcolm@redhat.com>

        * doc/invoke.texi (-fdiagnostics-show-cwe): Add note that some of
        the analyzer options provide CWE identifiers.

2020-01-14  David Malcolm  <dmalcolm@redhat.com>

        * tree-diagnostic-path.cc (path_summary::event_range::print):
        When testing for UNKNOWN_LOCATION, look through ad-hoc wrappers
        using get_pure_location.

2020-01-15  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/93262
        * tree-ssa-dse.c (maybe_trim_memstar_call): For *_chk builtins,
        perform head trimming only if the last argument is constant,
        either all ones, or larger or equal to head trim, in the latter
        case decrease the last argument by head_trim.

        PR tree-optimization/93249
        * tree-ssa-dse.c: Include builtins.h and gimple-fold.h.
        (maybe_trim_memstar_call): Move head_trim and tail_trim vars to
        function body scope, reindent.  For BUILTIN_IN_STRNCPY*, don't
        perform head trim unless we can prove there are no '\0' chars
        from the source among the first head_trim chars.

2020-01-14  David Malcolm  <dmalcolm@redhat.com>

        * Makefile.in (ANALYZER_OBJS): Add analyzer/function-set.o.

2020-01-15  Jakub Jelinek  <jakub@redhat.com>

        PR target/93009
        * config/i386/sse.md
        (*<sd_mask_codefor>fma_fmadd_<mode><sd_maskz_name>_bcst_1,
        *<sd_mask_codefor>fma_fmsub_<mode><sd_maskz_name>_bcst_1,
        *<sd_mask_codefor>fma_fnmadd_<mode><sd_maskz_name>_bcst_1,
        *<sd_mask_codefor>fma_fnmsub_<mode><sd_maskz_name>_bcst_1): Use
        just a single alternative instead of two, make operands 1 and 2
        commutative.

2020-01-14  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/91576
        * ipa-devirt.c (odr_types_equivalent_p): Compare TREE_ADDRESSABLE and
        TYPE_MODE.

2020-01-14  David Malcolm  <dmalcolm@redhat.com>

        * Makefile.in (lang_opt_files): Add analyzer.opt.
        (ANALYZER_OBJS): New.
        (OBJS): Add digraph.o, graphviz.o, ordered-hash-map-tests.o,
        tristate.o and ANALYZER_OBJS.
        (TEXI_GCCINT_FILES): Add analyzer.texi.
        * common.opt (-fanalyzer): New driver option.
        * config.in: Regenerate.
        * configure: Regenerate.
        * configure.ac (--disable-analyzer, ENABLE_ANALYZER): New option.
        (gccdepdir): Also create depdir for "analyzer" subdir.
        * digraph.cc: New file.
        * digraph.h: New file.
        * doc/analyzer.texi: New file.
        * doc/gccint.texi ("Static Analyzer") New menu item.
        (analyzer.texi): Include it.
        * doc/invoke.texi ("Static Analyzer Options"): New list and new section.
        ("Warning Options"): Add static analysis warnings to the list.
        (-Wno-analyzer-double-fclose): New option.
        (-Wno-analyzer-double-free): New option.
        (-Wno-analyzer-exposure-through-output-file): New option.
        (-Wno-analyzer-file-leak): New option.
        (-Wno-analyzer-free-of-non-heap): New option.
        (-Wno-analyzer-malloc-leak): New option.
        (-Wno-analyzer-possible-null-argument): New option.
        (-Wno-analyzer-possible-null-dereference): New option.
        (-Wno-analyzer-null-argument): New option.
        (-Wno-analyzer-null-dereference): New option.
        (-Wno-analyzer-stale-setjmp-buffer): New option.
        (-Wno-analyzer-tainted-array-index): New option.
        (-Wno-analyzer-use-after-free): New option.
        (-Wno-analyzer-use-of-pointer-in-stale-stack-frame): New option.
        (-Wno-analyzer-use-of-uninitialized-value): New option.
        (-Wanalyzer-too-complex): New option.
        (-fanalyzer-call-summaries): New warning.
        (-fanalyzer-checker=): New warning.
        (-fanalyzer-fine-grained): New warning.
        (-fno-analyzer-state-merge): New warning.
        (-fno-analyzer-state-purge): New warning.
        (-fanalyzer-transitivity): New warning.
        (-fanalyzer-verbose-edges): New warning.
        (-fanalyzer-verbose-state-changes): New warning.
        (-fanalyzer-verbosity=): New warning.
        (-fdump-analyzer): New warning.
        (-fdump-analyzer-callgraph): New warning.
        (-fdump-analyzer-exploded-graph): New warning.
        (-fdump-analyzer-exploded-nodes): New warning.
        (-fdump-analyzer-exploded-nodes-2): New warning.
        (-fdump-analyzer-exploded-nodes-3): New warning.
        (-fdump-analyzer-supergraph): New warning.
        * doc/sourcebuild.texi (dg-require-dot): New.
        (dg-check-dot): New.
        * gdbinit.in (break-on-saved-diagnostic): New command.
        * graphviz.cc: New file.
        * graphviz.h: New file.
        * ordered-hash-map-tests.cc: New file.
        * ordered-hash-map.h: New file.
        * passes.def (pass_analyzer): Add before
        pass_ipa_whole_program_visibility.
        * selftest-run-tests.c (selftest::run_tests): Call
        selftest::ordered_hash_map_tests_cc_tests.
        * selftest.h (selftest::ordered_hash_map_tests_cc_tests): New
        decl.
        * shortest-paths.h: New file.
        * timevar.def (TV_ANALYZER): New timevar.
        (TV_ANALYZER_SUPERGRAPH): Likewise.
        (TV_ANALYZER_STATE_PURGE): Likewise.
        (TV_ANALYZER_PLAN): Likewise.
        (TV_ANALYZER_SCC): Likewise.
        (TV_ANALYZER_WORKLIST): Likewise.
        (TV_ANALYZER_DUMP): Likewise.
        (TV_ANALYZER_DIAGNOSTICS): Likewise.
        (TV_ANALYZER_SHORTEST_PATHS): Likewise.
        * tree-pass.h (make_pass_analyzer): New decl.
        * tristate.cc: New file.
        * tristate.h: New file.

2020-01-14  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/93254
        * config/i386/i386.md (*movsf_internal): Require SSE2 ISA for
        alternatives 9 and 10.

2020-01-14  David Malcolm  <dmalcolm@redhat.com>

        * attribs.c (excl_hash_traits::empty_zero_p): New static constant.
        * gcov.c (function_start_pair_hash::empty_zero_p): Likewise.
        * graphite.c (struct sese_scev_hash::empty_zero_p): Likewise.
        * hash-map-tests.c (selftest::test_nonzero_empty_key): New selftest.
        (selftest::hash_map_tests_c_tests): Call it.
        * hash-map-traits.h (simple_hashmap_traits::empty_zero_p):
        New static constant, using the value of = H::empty_zero_p.
        (unbounded_hashmap_traits::empty_zero_p): Likewise, using the value
        from default_hash_traits <Value>.
        * hash-map.h (hash_map::empty_zero_p): Likewise, using the value
        from Traits.
        * hash-set-tests.c (value_hash_traits::empty_zero_p): Likewise.
        * hash-table.h (hash_table::alloc_entries): Guard the loop of
        calls to mark_empty with !Descriptor::empty_zero_p.
        (hash_table::empty_slow): Conditionalize the memset call with a
        check that Descriptor::empty_zero_p; otherwise, loop through the
        entries calling mark_empty on them.
        * hash-traits.h (int_hash::empty_zero_p): New static constant.
        (pointer_hash::empty_zero_p): Likewise.
        (pair_hash::empty_zero_p): Likewise.
        * ipa-devirt.c (default_hash_traits <type_pair>::empty_zero_p):
        Likewise.
        * ipa-prop.c (ipa_bit_ggc_hash_traits::empty_zero_p): Likewise.
        (ipa_vr_ggc_hash_traits::empty_zero_p): Likewise.
        * profile.c (location_triplet_hash::empty_zero_p): Likewise.
        * sanopt.c (sanopt_tree_triplet_hash::empty_zero_p): Likewise.
        (sanopt_tree_couple_hash::empty_zero_p): Likewise.
        * tree-hasher.h (int_tree_hasher::empty_zero_p): Likewise.
        * tree-ssa-sccvn.c (vn_ssa_aux_hasher::empty_zero_p): Likewise.
        * tree-vect-slp.c (bst_traits::empty_zero_p): Likewise.
        * tree-vectorizer.h
        (default_hash_traits<scalar_cond_masked_key>::empty_zero_p):
        Likewise.

2020-01-14  Kewen Lin  <linkw@gcc.gnu.org>

        * cfgloopanal.c (average_num_loop_insns): Free bbs when early return,
        fix typo on return value.

2020-01-14  Xiong Hu Luo  <luoxhu@linux.ibm.com>

        PR ipa/69678
        * cgraph.c (symbol_table::create_edge): Init speculative_id and
        target_prob.
        (cgraph_edge::make_speculative): Add param for setting speculative_id
        and target_prob.
        (cgraph_edge::speculative_call_info): Update comments and find reference
        by speculative_id for multiple indirect targets.
        (cgraph_edge::resolve_speculation): Decrease the speculations
        for indirect edge, drop it's speculative if not direct target
        left. Update comments.
        (cgraph_edge::redirect_call_stmt_to_callee): Likewise.
        (cgraph_node::dump): Print num_speculative_call_targets.
        (cgraph_node::verify_node): Don't report error if speculative
        edge not include statement.
        (cgraph_edge::num_speculative_call_targets_p): New function.
        * cgraph.h (int common_target_id): Remove.
        (int common_target_probability): Remove.
        (num_speculative_call_targets): New variable.
        (make_speculative): Add param for setting speculative_id.
        (cgraph_edge::num_speculative_call_targets_p): New declare.
        (target_prob): New variable.
        (speculative_id): New variable.
        * ipa-fnsummary.c (analyze_function_body): Create and duplicate
          call summaries for multiple speculative call targets.
        * cgraphclones.c (cgraph_node::create_clone): Clone speculative_id.
        * ipa-profile.c (struct speculative_call_target): New struct.
        (class speculative_call_summary): New class.
        (class speculative_call_summaries): New class.
        (call_sums): New variable.
        (ipa_profile_generate_summary): Generate indirect multiple targets summaries.
        (ipa_profile_write_edge_summary): New function.
        (ipa_profile_write_summary): Stream out indirect multiple targets summaries.
        (ipa_profile_dump_all_summaries): New function.
        (ipa_profile_read_edge_summary): New function.
        (ipa_profile_read_summary_section): New function.
        (ipa_profile_read_summary): Stream in indirect multiple targets summaries.
        (ipa_profile): Generate num_speculative_call_targets from
        profile summaries.
        * ipa-ref.h (speculative_id): New variable.
        * ipa-utils.c (ipa_merge_profiles): Update with target_prob.
        * lto-cgraph.c (lto_output_edge): Remove indirect common_target_id and
        common_target_probability.   Stream out speculative_id and
        num_speculative_call_targets.
        (input_edge): Likewise.
        * predict.c (dump_prediction): Remove edges count assert to be
        precise.
        * symtab.c (symtab_node::create_reference): Init speculative_id.
        (symtab_node::clone_references): Clone speculative_id.
        (symtab_node::clone_referring): Clone speculative_id.
        (symtab_node::clone_reference): Clone speculative_id.
        (symtab_node::clear_stmts_in_references): Clear speculative_id.
        * tree-inline.c (copy_bb): Duplicate all the speculative edges
        if indirect call contains multiple speculative targets.
        * value-prof.h  (check_ic_target): Remove.
        * value-prof.c  (gimple_value_profile_transformations):
        Use void function gimple_ic_transform.
        * value-prof.c  (gimple_ic_transform): Handle topn case.
        Fix comment typos.  Change it to a void function.

2020-01-13  Andrew Pinski  <apinski@marvell.com>

        * config/aarch64/aarch64-cores.def (octeontx2): New define.
        (octeontx2t98): New define.
        (octeontx2t96): New define.
        (octeontx2t93): New define.
        (octeontx2f95): New define.
        (octeontx2f95n): New define.
        (octeontx2f95mm): New define.
        * config/aarch64/aarch64-tune.md: Regenerate.
        * doc/invoke.texi (-mcpu=): Document the new cpu types.

2020-01-13  Jason Merrill  <jason@redhat.com>

        PR c++/33799 - destroy return value if local cleanup throws.
        * gimplify.c (gimplify_return_expr): Handle COMPOUND_EXPR.

2020-01-13  Martin Liska  <mliska@suse.cz>

        * ipa-cp.c (get_max_overall_size): Use newly
        renamed param param_ipa_cp_unit_growth.
        * params.opt: Remove legacy param name.

2020-01-13  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/93213
        * tree-ssa-strlen.c (handle_store): Only allow single-byte nul-over-nul
        stores to be eliminated.

2020-01-13  Martin Liska  <mliska@suse.cz>

        * opts.c (print_help): Do not print CL_PARAM
        and CL_WARNING for CL_OPTIMIZATION.

2020-01-13  Jonathan Wakely  <jwakely@redhat.com>

        PR driver/92757
        * doc/invoke.texi (Warning Options): Add caveat about some warnings
        depending on optimization settings.

2020-01-13  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/90838
        * tree-ssa-forwprop.c (simplify_count_trailing_zeroes): Use
        SCALAR_INT_TYPE_MODE directly in CTZ_DEFINED_VALUE_AT_ZERO macro
        argument rather than to initialize temporary for targets that
        don't use the mode argument at all.  Initialize ctzval to avoid
        warning at -O0.

2020-01-10  Thomas Schwinge  <thomas@codesourcery.com>

        * tree.h (OMP_CLAUSE_USE_DEVICE_PTR_IF_PRESENT): New definition.
        * tree-core.h: Document it.
        * gimplify.c (gimplify_omp_workshare): Set it.
        * omp-low.c (lower_omp_target): Use it.
        * tree-pretty-print.c (dump_omp_clause): Print it.

        * omp-low.c (lower_omp_target) <OMP_CLAUSE_USE_DEVICE_PTR etc.>:
        Assert that for OpenACC we always have 'GOMP_MAP_USE_DEVICE_PTR'.

2020-01-10  David Malcolm  <dmalcolm@redhat.com>

        * Makefile.in (OBJS): Add tree-diagnostic-path.o.
        * common.opt (fdiagnostics-path-format=): New option.
        (diagnostic_path_format): New enum.
        (fdiagnostics-show-path-depths): New option.
        * coretypes.h (diagnostic_event_id_t): New forward decl.
        * diagnostic-color.c (color_dict): Add "path".
        * diagnostic-event-id.h: New file.
        * diagnostic-format-json.cc (json_from_expanded_location): Make
        non-static.
        (json_end_diagnostic): Call context->make_json_for_path if it
        exists and the diagnostic has a path.
        (diagnostic_output_format_init): Clear context->print_path.
        * diagnostic-path.h: New file.
        * diagnostic-show-locus.c (colorizer::set_range): Special-case
        when printing a run of events in a diagnostic_path so that they
        all get the same color.
        (layout::m_diagnostic_path_p): New field.
        (layout::layout): Initialize it.
        (layout::print_any_labels): Don't colorize the label text for an
        event in a diagnostic_path.
        (gcc_rich_location::add_location_if_nearby): Add
        "restrict_to_current_line_spans" and "label" params.  Pass the
        former to layout.maybe_add_location_range; pass the latter
        when calling add_range.
        * diagnostic.c: Include "diagnostic-path.h".
        (diagnostic_initialize): Initialize context->path_format and
        context->show_path_depths.
        (diagnostic_show_any_path): New function.
        (diagnostic_path::interprocedural_p): New function.
        (diagnostic_report_diagnostic): Call diagnostic_show_any_path.
        (simple_diagnostic_path::num_events): New function.
        (simple_diagnostic_path::get_event): New function.
        (simple_diagnostic_path::add_event): New function.
        (simple_diagnostic_event::simple_diagnostic_event): New ctor.
        (simple_diagnostic_event::~simple_diagnostic_event): New dtor.
        (debug): New overload taking a diagnostic_path *.
        * diagnostic.def (DK_DIAGNOSTIC_PATH): New.
        * diagnostic.h (enum diagnostic_path_format): New enum.
        (json::value): New forward decl.
        (diagnostic_context::path_format): New field.
        (diagnostic_context::show_path_depths): New field.
        (diagnostic_context::print_path): New callback field.
        (diagnostic_context::make_json_for_path): New callback field.
        (diagnostic_show_any_path): New decl.
        (json_from_expanded_location): New decl.
        * doc/invoke.texi (-fdiagnostics-path-format=): New option.
        (-fdiagnostics-show-path-depths): New option.
        (-fdiagnostics-color): Add "path" to description of default
        GCC_COLORS; describe it.
        (-fdiagnostics-format=json): Document how diagnostic paths are
        represented in the JSON output format.
        * gcc-rich-location.h (gcc_rich_location::add_location_if_nearby):
        Add optional params "restrict_to_current_line_spans" and "label".
        * opts.c (common_handle_option): Handle
        OPT_fdiagnostics_path_format_ and
        OPT_fdiagnostics_show_path_depths.
        * pretty-print.c: Include "diagnostic-event-id.h".
        (pp_format): Implement "%@" format code for printing
        diagnostic_event_id_t *.
        (selftest::test_pp_format): Add tests for "%@".
        * selftest-run-tests.c (selftest::run_tests): Call
        selftest::tree_diagnostic_path_cc_tests.
        * selftest.h (selftest::tree_diagnostic_path_cc_tests): New decl.
        * toplev.c (general_init): Initialize global_dc->path_format and
        global_dc->show_path_depths.
        * tree-diagnostic-path.cc: New file.
        * tree-diagnostic.c (maybe_unwind_expanded_macro_loc): Make
        non-static.  Drop "diagnostic" param in favor of storing the
        original value of "where" and re-using it.
        (virt_loc_aware_diagnostic_finalizer): Update for dropped param of
        maybe_unwind_expanded_macro_loc.
        (tree_diagnostics_defaults): Initialize context->print_path and
        context->make_json_for_path.
        * tree-diagnostic.h (default_tree_diagnostic_path_printer): New
        decl.
        (default_tree_make_json_for_path): New decl.
        (maybe_unwind_expanded_macro_loc): New decl.

2020-01-10  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/93210
        * fold-const.h (native_encode_initializer,
        can_native_interpret_type_p): Declare.
        * fold-const.c (native_encode_string): Fix up handling with off != -1,
        simplify.
        (native_encode_initializer): New function, moved from dwarf2out.c.
        Adjust to native_encode_expr compatible arguments, including dry-run
        and partial extraction modes.  Don't handle STRING_CST.
        (can_native_interpret_type_p): No longer static.
        * gimple-fold.c (fold_ctor_reference): For native_encode_expr, verify
        offset / BITS_PER_UNIT fits into int and don't call it if
        can_native_interpret_type_p fails.  If suboff is NULL and for
        CONSTRUCTOR fold_{,non}array_ctor_reference returns NULL, retry with
        native_encode_initializer.
        (fold_const_aggregate_ref_1): Formatting fix.
        * dwarf2out.c (native_encode_initializer): Moved to fold-const.c.
        (tree_add_const_value_attribute): Adjust caller.

        PR tree-optimization/90838
        * tree-ssa-forwprop.c (simplify_count_trailing_zeroes): Use
        SCALAR_INT_TYPE_MODE instead of TYPE_MODE as operand of
        CTZ_DEFINED_VALUE_AT_ZERO.

2020-01-10  Vladimir Makarov  <vmakarov@redhat.com>

        PR inline-asm/93027
        * lra-constraints.c (match_reload): Permit input operands have the
        same mode as output while other input operands have a different
        mode.

2020-01-10  Wilco Dijkstra  <wdijkstr@arm.com>

        PR tree-optimization/90838
        * tree-ssa-forwprop.c (check_ctz_array): Add new function.
        (check_ctz_string): Likewise.
        (optimize_count_trailing_zeroes): Likewise.
        (simplify_count_trailing_zeroes): Likewise.
        (pass_forwprop::execute): Try ctz simplification.
        * match.pd: Add matching for ctz idioms.

2020-01-10  Stam Markianos-Wright  <stam.markianos-wright@arm.com>

        * config/aarch64/aarch64.c (aarch64_invalid_conversion): New function
        for target hook.
        (aarch64_invalid_unary_op): New function for target hook.
        (aarch64_invalid_binary_op): New function for target hook.

2020-01-10  Stam Markianos-Wright  <stam.markianos-wright@arm.com>

        * config.gcc: Add arm_bf16.h.
        * config/aarch64/aarch64-builtins.c
        (aarch64_simd_builtin_std_type): Add BFmode.
        (aarch64_init_simd_builtin_types): Define element types for vector
        types.
        (aarch64_init_bf16_types): New function.
        (aarch64_general_init_builtins): Add arm_init_bf16_types function call.
        * config/aarch64/aarch64-modes.def: Add BFmode and V4BF, V8BF vector
        modes.
        * config/aarch64/aarch64-simd-builtin-types.def: Add BF SIMD types.
        * config/aarch64/aarch64-simd.md: Add BF vector types to NEON move
        patterns.
        * config/aarch64/aarch64.h (AARCH64_VALID_SIMD_DREG_MODE): Add V4BF.
        (AARCH64_VALID_SIMD_QREG_MODE): Add V8BF.
        * config/aarch64/aarch64.c
        (aarch64_classify_vector_mode): Add support for BF types.
        (aarch64_gimplify_va_arg_expr): Add support for BF types.
        (aarch64_vq_mode): Add support for BF types.
        (aarch64_simd_container_mode): Add support for BF types.
        (aarch64_mangle_type): Add support for BF scalar type.
        * config/aarch64/aarch64.md: Add BFmode to movhf pattern.
        * config/aarch64/arm_bf16.h: New file.
        * config/aarch64/arm_neon.h: Add arm_bf16.h and Bfloat vector types.
        * config/aarch64/iterators.md: Add BF types to mode attributes.
        (HFBF, GPF_TF_F16_MOV, VDMOV, VQMOV, VQMOV_NO2Em VALL_F16MOV): New.

2020-01-10  Jason Merrill  <jason@redhat.com>

        PR c++/93173 - incorrect tree sharing.
        * gimplify.c (copy_if_shared): No longer static.
        * gimplify.h: Declare it.

2020-01-10  Richard Sandiford  <richard.sandiford@arm.com>

        * doc/invoke.texi (-msve-vector-bits=): Document that
        -msve-vector-bits=128 now generates VL-specific code for
        little-endian targets.
        * config/aarch64/aarch64-sve-builtins.cc (register_builtin_types): Use
        build_vector_type_for_mode to construct the data vector types.
        * config/aarch64/aarch64.c (aarch64_convert_sve_vector_bits): Generate
        VL-specific code for -msve-vector-bits=128 on little-endian targets.
        (aarch64_simd_container_mode): Always prefer Advanced SIMD modes
        for 128-bit vectors.

2020-01-10  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_evpc_sel): Fix gen_vcond_mask
        invocation.

2020-01-10  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-builtins.c
        (aarch64_builtin_vectorized_function): Check for specific vector modes,
        rather than checking the number of elements and the element mode.

2020-01-10  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vect-loop.c (vect_create_epilog_for_reduction): Use
        get_related_vectype_for_scalar_type rather than build_vector_type
        to create the index type for a conditional reduction.

2020-01-10  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vect-loop.c (update_epilogue_loop_vinfo): Update DR_REF
        for any type of gather or scatter, including strided accesses.

2020-01-10  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * tree-vectorizer.h (get_dr_vinfo_offset): Add missing function
         comment.

2020-01-10  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * tree-vect-data-refs.c (vect_create_addr_base_for_vector_ref): Use
        get_dr_vinfo_offset
        * tree-vect-loop.c (update_epilogue_loop_vinfo):  Remove orig_drs_init
        parameter and its use to reset DR_OFFSET's.
        (vect_transform_loop): Remove orig_drs_init argument.
        * tree-vect-loop-manip.c (vect_update_init_of_dr): Update the offset
        member of dr_vec_info rather than the offset of the associated
        data_reference's innermost_loop_behavior.
        (vect_update_init_of_dr): Pass dr_vec_info instead of data_reference.
        (vect_do_peeling): Remove orig_drs_init parameter and its construction.
        * tree-vect-stmts.c (check_scan_store): Replace use of DR_OFFSET with
        get_dr_vinfo_offset.
        (vectorizable_store): Likewise.
        (vectorizable_load): Likewise.

2020-01-10  Richard Biener  <rguenther@suse.de>

        * gimple-ssa-store-merging
        (pass_store_merging::terminate_all_aliasing_chains): Cache alias info.

2020-01-10  Martin Liska  <mliska@suse.cz>

        PR ipa/93217
        * ipa-inline-analysis.c (offline_size): Make proper parenthesis
        encapsulation that was there before r280040.

2020-01-10  Richard Biener  <rguenther@suse.de>

        PR middle-end/93199
        * tree-eh.c (sink_clobbers): Move clobbers to out-of-IL
        sequences to avoid walking them again for secondary opportunities.
        (pass_lower_eh_dispatch::execute): Instead actually insert
        them here.

2020-01-10  Richard Biener  <rguenther@suse.de>

        PR middle-end/93199
        * tree-eh.c (redirect_eh_edge_1): Avoid some work if possible.
        (cleanup_all_empty_eh): Walk landing pads in reverse order to
        avoid quadraticness.

2020-01-10  Martin Jambor  <mjambor@suse.cz>

        * params.opt (param_ipa_sra_max_replacements): Mark as Optimization.
        * ipa-sra.c (pull_accesses_from_callee): New parameter caller, use it
        to get param_ipa_sra_max_replacements.
        (param_splitting_across_edge): Pass the caller to
        pull_accesses_from_callee.

2020-01-10  Martin Jambor  <mjambor@suse.cz>

        * params.opt (param_ipcp_unit_growth): Mark as Optimization.
        * ipa-cp.c (max_new_size): Removed.
        (orig_overall_size): New variable.
        (get_max_overall_size): New function.
        (estimate_local_effects): Use it.  Adjust dump.
        (decide_about_value): Likewise.
        (ipcp_propagate_stage): Do not calculate max_new_size, just store
        orig_overall_size.  Adjust dump.
        (ipa_cp_c_finalize): Clear orig_overall_size instead of max_new_size.

2020-01-10  Martin Jambor  <mjambor@suse.cz>

        * params.opt (param_ipa_max_agg_items): Mark as Optimization
        * ipa-cp.c (merge_agg_lats_step): New parameter max_agg_items, use
        instead of param_ipa_max_agg_items.
        (merge_aggregate_lattices): Extract param_ipa_max_agg_items from
        optimization info for the callee.

2020-01-09  Kwok Cheung Yeung  <kcy@codesourcery.com>

        * lto-streamer-in.c (input_function): Remove streamed-in inline debug
        markers if debug_inline_points is false.

2020-01-09  Richard Sandiford  <richard.sandiford@arm.com>

        * config.gcc (aarch64*-*-*): Add aarch64-sve-builtins-sve2.o to
        extra_objs.
        * config/aarch64/t-aarch64 (aarch64-sve-builtins.o): Depend on
        aarch64-sve-builtins-base.def, aarch64-sve-builtins-sve2.def and
        aarch64-sve-builtins-sve2.h.
        (aarch64-sve-builtins-sve2.o): New rule.
        * config/aarch64/aarch64.h (AARCH64_ISA_SVE2_AES): New macro.
        (AARCH64_ISA_SVE2_BITPERM, AARCH64_ISA_SVE2_SHA3): Likewise.
        (AARCH64_ISA_SVE2_SM4, TARGET_SVE2_AES, TARGET_SVE2_BITPERM): Likewise.
        (TARGET_SVE2_SHA, TARGET_SVE2_SM4): Likewise.
        * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Handle
        TARGET_SVE2_AES, TARGET_SVE2_BITPERM, TARGET_SVE2_SHA3 and
        TARGET_SVE2_SM4.
        * config/aarch64/aarch64-sve.md: Update comments with SVE2
        instructions that are handled here.
        (@cond_asrd<mode>): Generalize to...
        (@cond_<SVE_INT_SHIFT_IMM:sve_int_op><mode>): ...this.
        (*cond_asrd<mode>_2): Generalize to...
        (*cond_<SVE_INT_SHIFT_IMM:sve_int_op><mode>_2): ...this.
        (*cond_asrd<mode>_z): Generalize to...
        (*cond_<SVE_INT_SHIFT_IMM:sve_int_op><mode>_z): ...this.
        * config/aarch64/aarch64.md (UNSPEC_LDNT1_GATHER): New unspec.
        (UNSPEC_STNT1_SCATTER, UNSPEC_WHILEGE, UNSPEC_WHILEGT): Likewise.
        (UNSPEC_WHILEHI, UNSPEC_WHILEHS): Likewise.
        * config/aarch64/aarch64-sve2.md (@aarch64_gather_ldnt<mode>): New
        pattern.
        (@aarch64_gather_ldnt_<ANY_EXTEND:optab><SVE_FULL_SDI:mode><SVE_PARTIAL_I:mode>)
        (@aarch64_scatter_stnt<mode>): Likewise.
        (@aarch64_scatter_stnt_<SVE_FULL_SDI:mode><SVE_PARTIAL_I:mode>)
        (@aarch64_mul_lane_<mode>): Likewise.
        (@aarch64_sve_suqadd<mode>_const): Likewise.
        (*<sur>h<addsub><mode>): Generalize to...
        (@aarch64_pred_<SVE2_COND_INT_BINARY_REV:sve_int_op><mode>): ...this
        new pattern.
        (@cond_<SVE2_COND_INT_BINARY:sve_int_op><mode>): New expander.
        (*cond_<SVE2_COND_INT_BINARY:sve_int_op><mode>_2): New pattern.
        (*cond_<SVE2_COND_INT_BINARY:sve_int_op><mode>_3): Likewise.
        (*cond_<SVE2_COND_INT_BINARY:sve_int_op><mode>_any): Likewise.
        (*cond_<SVE2_COND_INT_BINARY_NOREV:sve_int_op><mode>_z): Likewise.
        (@aarch64_sve_<SVE2_INT_BINARY:sve_int_op><mode>):: Likewise.
        (@aarch64_sve_<SVE2_INT_BINARY:sve_int_op>_lane_<mode>): Likewise.
        (@aarch64_pred_<SVE2_COND_INT_SHIFT:sve_int_op><mode>): Likewise.
        (@cond_<SVE2_COND_INT_SHIFT:sve_int_op><mode>): New expander.
        (*cond_<SVE2_COND_INT_SHIFT:sve_int_op><mode>_2): New pattern.
        (*cond_<SVE2_COND_INT_SHIFT:sve_int_op><mode>_3): Likewise.
        (*cond_<SVE2_COND_INT_SHIFT:sve_int_op><mode>_any): Likewise.
        (@aarch64_sve_<SVE2_INT_TERNARY:sve_int_op><mode>): Likewise.
        (@aarch64_sve_<SVE2_INT_TERNARY_LANE:sve_int_op>_lane_<mode>)
        (@aarch64_sve_add_mul_lane_<mode>): Likewise.
        (@aarch64_sve_sub_mul_lane_<mode>): Likewise.
        (@aarch64_sve2_xar<mode>): Likewise.
        (@aarch64_sve2_bcax<mode>): Likewise.
        (*aarch64_sve2_eor3<mode>): Rename to...
        (@aarch64_sve2_eor3<mode>): ...this.
        (@aarch64_sve2_bsl<mode>): New expander.
        (@aarch64_sve2_nbsl<mode>): Likewise.
        (@aarch64_sve2_bsl1n<mode>): Likewise.
        (@aarch64_sve2_bsl2n<mode>): Likewise.
        (@aarch64_sve_add_<SHIFTRT:sve_int_op><mode>): Likewise.
        (*aarch64_sve2_sra<mode>): Add MOVPRFX support.
        (@aarch64_sve_add_<VRSHR_N:sve_int_op><mode>): New pattern.
        (@aarch64_sve_<SVE2_INT_SHIFT_INSERT:sve_int_op><mode>): Likewise.
        (@aarch64_sve2_<USMAX:su>aba<mode>): New expander.
        (*aarch64_sve2_<USMAX:su>aba<mode>): New pattern.
        (@aarch64_sve_<SVE2_INT_BINARY_WIDE:sve_int_op><mode>): Likewise.
        (<su>mull<bt><Vwide>): Generalize to...
        (@aarch64_sve_<SVE2_INT_BINARY_LONG:sve_int_op><mode>): ...this new
        pattern.
        (@aarch64_sve_<SVE2_INT_BINARY_LONG_lANE:sve_int_op>_lane_<mode>)
        (@aarch64_sve_<SVE2_INT_SHIFT_IMM_LONG:sve_int_op><mode>)
        (@aarch64_sve_add_<SVE2_INT_ADD_BINARY_LONG:sve_int_op><mode>)
        (@aarch64_sve_add_<SVE2_INT_ADD_BINARY_LONG_LANE:sve_int_op>_lane_<mode>)
        (@aarch64_sve_qadd_<SVE2_INT_QADD_BINARY_LONG:sve_int_op><mode>)
        (@aarch64_sve_qadd_<SVE2_INT_QADD_BINARY_LONG_LANE:sve_int_op>_lane_<mode>)
        (@aarch64_sve_sub_<SVE2_INT_SUB_BINARY_LONG:sve_int_op><mode>)
        (@aarch64_sve_sub_<SVE2_INT_SUB_BINARY_LONG_LANE:sve_int_op>_lane_<mode>)
        (@aarch64_sve_qsub_<SVE2_INT_QSUB_BINARY_LONG:sve_int_op><mode>)
        (@aarch64_sve_qsub_<SVE2_INT_QSUB_BINARY_LONG_LANE:sve_int_op>_lane_<mode>)
        (@aarch64_sve_<SVE2_FP_TERNARY_LONG:sve_fp_op><mode>): New patterns.
        (@aarch64_<SVE2_FP_TERNARY_LONG_LANE:sve_fp_op>_lane_<mode>)
        (@aarch64_sve_<SVE2_INT_UNARY_NARROWB:sve_int_op><mode>): Likewise.
        (@aarch64_sve_<SVE2_INT_UNARY_NARROWT:sve_int_op><mode>): Likewise.
        (@aarch64_sve_<SVE2_INT_BINARY_NARROWB:sve_int_op><mode>): Likewise.
        (@aarch64_sve_<SVE2_INT_BINARY_NARROWT:sve_int_op><mode>): Likewise.
        (<SHRNB:r>shrnb<mode>): Generalize to...
        (@aarch64_sve_<SVE2_INT_SHIFT_IMM_NARROWB:sve_int_op><mode>): ...this
        new pattern.
        (<SHRNT:r>shrnt<mode>): Generalize to...
        (@aarch64_sve_<SVE2_INT_SHIFT_IMM_NARROWT:sve_int_op><mode>): ...this
        new pattern.
        (@aarch64_pred_<SVE2_INT_BINARY_PAIR:sve_int_op><mode>): New pattern.
        (@aarch64_pred_<SVE2_FP_BINARY_PAIR:sve_fp_op><mode>): Likewise.
        (@cond_<SVE2_INT_BINARY_PAIR_LONG:sve_int_op><mode>): New expander.
        (*cond_<SVE2_INT_BINARY_PAIR_LONG:sve_int_op><mode>_2): New pattern.
        (*cond_<SVE2_INT_BINARY_PAIR_LONG:sve_int_op><mode>_z): Likewise.
        (@aarch64_sve_<SVE2_INT_CADD:optab><mode>): Likewise.
        (@aarch64_sve_<SVE2_INT_CMLA:optab><mode>): Likewise.
        (@aarch64_<SVE2_INT_CMLA:optab>_lane_<mode>): Likewise.
        (@aarch64_sve_<SVE2_INT_CDOT:optab><mode>): Likewise.
        (@aarch64_<SVE2_INT_CDOT:optab>_lane_<mode>): Likewise.
        (@aarch64_pred_<SVE2_COND_FP_UNARY_LONG:sve_fp_op><mode>): Likewise.
        (@cond_<SVE2_COND_FP_UNARY_LONG:sve_fp_op><mode>): New expander.
        (*cond_<SVE2_COND_FP_UNARY_LONG:sve_fp_op><mode>): New pattern.
        (@aarch64_sve2_cvtnt<mode>): Likewise.
        (@aarch64_pred_<SVE2_COND_FP_UNARY_NARROWB:sve_fp_op><mode>): Likewise.
        (@cond_<SVE2_COND_FP_UNARY_NARROWB:sve_fp_op><mode>): New expander.
        (*cond_<SVE2_COND_FP_UNARY_NARROWB:sve_fp_op><mode>_any): New pattern.
        (@aarch64_sve2_cvtxnt<mode>): Likewise.
        (@aarch64_pred_<SVE2_U32_UNARY:sve_int_op><mode>): Likewise.
        (@cond_<SVE2_U32_UNARY:sve_int_op><mode>): New expander.
        (*cond_<SVE2_U32_UNARY:sve_int_op><mode>): New pattern.
        (@aarch64_pred_<SVE2_COND_INT_UNARY_FP:sve_fp_op><mode>): Likewise.
        (@cond_<SVE2_COND_INT_UNARY_FP:sve_fp_op><mode>): New expander.
        (*cond_<SVE2_COND_INT_UNARY_FP:sve_fp_op><mode>): New pattern.
        (@aarch64_sve2_pmul<mode>): Likewise.
        (@aarch64_sve_<SVE2_PMULL:optab><mode>): Likewise.
        (@aarch64_sve_<SVE2_PMULL_PAIR:optab><mode>): Likewise.
        (@aarch64_sve2_tbl2<mode>): Likewise.
        (@aarch64_sve2_tbx<mode>): Likewise.
        (@aarch64_sve_<SVE2_INT_BITPERM:sve_int_op><mode>): Likewise.
        (@aarch64_sve2_histcnt<mode>): Likewise.
        (@aarch64_sve2_histseg<mode>): Likewise.
        (@aarch64_pred_<SVE2_MATCH:sve_int_op><mode>): Likewise.
        (*aarch64_pred_<SVE2_MATCH:sve_int_op><mode>_cc): Likewise.
        (*aarch64_pred_<SVE2_MATCH:sve_int_op><mode>_ptest): Likewise.
        (aarch64_sve2_aes<CRYPTO_AES:aes_op>): Likewise.
        (aarch64_sve2_aes<CRYPTO_AESMC:aesmc_op>): Likewise.
        (*aarch64_sve2_aese_fused, *aarch64_sve2_aesd_fused): Likewise.
        (aarch64_sve2_rax1, aarch64_sve2_sm4e, aarch64_sve2_sm4ekey): Likewise.
        (<su>mulh<r>s<mode>3): Update after above pattern name changes.
        * config/aarch64/iterators.md (VNx16QI_ONLY, VNx4SF_ONLY)
        (SVE_STRUCT2, SVE_FULL_BHI, SVE_FULL_HSI, SVE_FULL_HDI)
        (SVE2_PMULL_PAIR_I): New mode iterators.
        (UNSPEC_ADCLB, UNSPEC_ADCLT, UNSPEC_ADDHNB, UNSPEC_ADDHNT, UNSPEC_BDEP)
        (UNSPEC_BEXT, UNSPEC_BGRP, UNSPEC_CADD90, UNSPEC_CADD270, UNSPEC_CDOT)
        (UNSPEC_CDOT90, UNSPEC_CDOT180, UNSPEC_CDOT270, UNSPEC_CMLA)
        (UNSPEC_CMLA90, UNSPEC_CMLA180, UNSPEC_CMLA270, UNSPEC_COND_FCVTLT)
        (UNSPEC_COND_FCVTNT, UNSPEC_COND_FCVTX, UNSPEC_COND_FCVTXNT)
        (UNSPEC_COND_FLOGB, UNSPEC_EORBT, UNSPEC_EORTB, UNSPEC_FADDP)
        (UNSPEC_FMAXP, UNSPEC_FMAXNMP, UNSPEC_FMLALB, UNSPEC_FMLALT)
        (UNSPEC_FMLSLB, UNSPEC_FMLSLT, UNSPEC_FMINP, UNSPEC_FMINNMP)
        (UNSPEC_HISTCNT, UNSPEC_HISTSEG, UNSPEC_MATCH, UNSPEC_NMATCH)
        (UNSPEC_PMULLB, UNSPEC_PMULLB_PAIR, UNSPEC_PMULLT, UNSPEC_PMULLT_PAIR)
        (UNSPEC_RADDHNB, UNSPEC_RADDHNT, UNSPEC_RSUBHNB, UNSPEC_RSUBHNT)
        (UNSPEC_SLI, UNSPEC_SRI, UNSPEC_SABDLB, UNSPEC_SABDLT, UNSPEC_SADDLB)
        (UNSPEC_SADDLBT, UNSPEC_SADDLT, UNSPEC_SADDWB, UNSPEC_SADDWT)
        (UNSPEC_SBCLB, UNSPEC_SBCLT, UNSPEC_SMAXP, UNSPEC_SMINP)
        (UNSPEC_SQCADD90, UNSPEC_SQCADD270, UNSPEC_SQDMULLB, UNSPEC_SQDMULLBT)
        (UNSPEC_SQDMULLT, UNSPEC_SQRDCMLAH, UNSPEC_SQRDCMLAH90)
        (UNSPEC_SQRDCMLAH180, UNSPEC_SQRDCMLAH270, UNSPEC_SQRSHRNB)
        (UNSPEC_SQRSHRNT, UNSPEC_SQRSHRUNB, UNSPEC_SQRSHRUNT, UNSPEC_SQSHRNB)
        (UNSPEC_SQSHRNT, UNSPEC_SQSHRUNB, UNSPEC_SQSHRUNT, UNSPEC_SQXTNB)
        (UNSPEC_SQXTNT, UNSPEC_SQXTUNB, UNSPEC_SQXTUNT, UNSPEC_SSHLLB)
        (UNSPEC_SSHLLT, UNSPEC_SSUBLB, UNSPEC_SSUBLBT, UNSPEC_SSUBLT)
        (UNSPEC_SSUBLTB, UNSPEC_SSUBWB, UNSPEC_SSUBWT, UNSPEC_SUBHNB)
        (UNSPEC_SUBHNT, UNSPEC_TBL2, UNSPEC_UABDLB, UNSPEC_UABDLT)
        (UNSPEC_UADDLB, UNSPEC_UADDLT, UNSPEC_UADDWB, UNSPEC_UADDWT)
        (UNSPEC_UMAXP, UNSPEC_UMINP, UNSPEC_UQRSHRNB, UNSPEC_UQRSHRNT)
        (UNSPEC_UQSHRNB, UNSPEC_UQSHRNT, UNSPEC_UQXTNB, UNSPEC_UQXTNT)
        (UNSPEC_USHLLB, UNSPEC_USHLLT, UNSPEC_USUBLB, UNSPEC_USUBLT)
        (UNSPEC_USUBWB, UNSPEC_USUBWT): New unspecs.
        (UNSPEC_SMULLB, UNSPEC_SMULLT, UNSPEC_UMULLB, UNSPEC_UMULLT)
        (UNSPEC_SMULHS, UNSPEC_SMULHRS, UNSPEC_UMULHS, UNSPEC_UMULHRS)
        (UNSPEC_RSHRNB, UNSPEC_RSHRNT, UNSPEC_SHRNB, UNSPEC_SHRNT): Move
        further down file.
        (VNARROW, Ventype): New mode attributes.
        (Vewtype): Handle VNx2DI.  Fix typo in comment.
        (VDOUBLE): New mode attribute.
        (sve_lane_con): Handle VNx8HI.
        (SVE_INT_UNARY): Include ss_abs and ss_neg for TARGET_SVE2.
        (SVE_INT_BINARY): Likewise ss_plus, us_plus, ss_minus and us_minus.
        (sve_int_op, sve_int_op_rev): Handle the above codes.
        (sve_pred_int_rhs2_operand): Likewise.
        (MULLBT, SHRNB, SHRNT): Delete.
        (SVE_INT_SHIFT_IMM): New int iterator.
        (SVE_WHILE): Add UNSPEC_WHILEGE, UNSPEC_WHILEGT, UNSPEC_WHILEHI
        and UNSPEC_WHILEHS for TARGET_SVE2.
        (SVE2_U32_UNARY, SVE2_INT_UNARY_NARROWB, SVE2_INT_UNARY_NARROWT)
        (SVE2_INT_BINARY, SVE2_INT_BINARY_LANE, SVE2_INT_BINARY_LONG)
        (SVE2_INT_BINARY_LONG_LANE, SVE2_INT_BINARY_NARROWB)
        (SVE2_INT_BINARY_NARROWT, SVE2_INT_BINARY_PAIR, SVE2_FP_BINARY_PAIR)
        (SVE2_INT_BINARY_PAIR_LONG, SVE2_INT_BINARY_WIDE): New int iterators.
        (SVE2_INT_SHIFT_IMM_LONG, SVE2_INT_SHIFT_IMM_NARROWB): Likewise.
        (SVE2_INT_SHIFT_IMM_NARROWT, SVE2_INT_SHIFT_INSERT, SVE2_INT_CADD)
        (SVE2_INT_BITPERM, SVE2_INT_TERNARY, SVE2_INT_TERNARY_LANE): Likewise.
        (SVE2_FP_TERNARY_LONG, SVE2_FP_TERNARY_LONG_LANE, SVE2_INT_CMLA)
        (SVE2_INT_CDOT, SVE2_INT_ADD_BINARY_LONG, SVE2_INT_QADD_BINARY_LONG)
        (SVE2_INT_SUB_BINARY_LONG, SVE2_INT_QSUB_BINARY_LONG): Likewise.
        (SVE2_INT_ADD_BINARY_LONG_LANE, SVE2_INT_QADD_BINARY_LONG_LANE)
        (SVE2_INT_SUB_BINARY_LONG_LANE, SVE2_INT_QSUB_BINARY_LONG_LANE)
        (SVE2_COND_INT_UNARY_FP, SVE2_COND_FP_UNARY_LONG): Likewise.
        (SVE2_COND_FP_UNARY_NARROWB, SVE2_COND_INT_BINARY): Likewise.
        (SVE2_COND_INT_BINARY_NOREV, SVE2_COND_INT_BINARY_REV): Likewise.
        (SVE2_COND_INT_SHIFT, SVE2_MATCH, SVE2_PMULL): Likewise.
        (optab): Handle the new unspecs.
        (su, r): Remove entries for UNSPEC_SHRNB, UNSPEC_SHRNT, UNSPEC_RSHRNB
        and UNSPEC_RSHRNT.
        (lr): Handle the new unspecs.
        (bt): Delete.
        (cmp_op, while_optab_cmp, sve_int_op): Handle the new unspecs.
        (sve_int_op_rev, sve_int_add_op, sve_int_qadd_op, sve_int_sub_op)
        (sve_int_qsub_op): New int attributes.
        (sve_fp_op, rot): Handle the new unspecs.
        * config/aarch64/aarch64-sve-builtins.h
        (function_resolver::require_matching_pointer_type): Declare.
        (function_resolver::resolve_unary): Add an optional boolean argument.
        (function_resolver::finish_opt_n_resolution): Add an optional
        type_suffix_index argument.
        (gimple_folder::redirect_call): Declare.
        (gimple_expander::prepare_gather_address_operands): Add an optional
        bool parameter.
        * config/aarch64/aarch64-sve-builtins.cc: Include
        aarch64-sve-builtins-sve2.h.
        (TYPES_b_unsigned, TYPES_b_integer, TYPES_bh_integer): New macros.
        (TYPES_bs_unsigned, TYPES_hs_signed, TYPES_hs_integer): Likewise.
        (TYPES_hd_unsigned, TYPES_hsd_signed): Likewise.
        (TYPES_hsd_integer): Use TYPES_hsd_signed.
        (TYPES_s_float_hsd_integer, TYPES_s_float_sd_integer): New macros.
        (TYPES_s_unsigned): Likewise.
        (TYPES_s_integer): Use TYPES_s_unsigned.
        (TYPES_sd_signed, TYPES_sd_unsigned): New macros.
        (TYPES_sd_integer): Use them.
        (TYPES_d_unsigned): New macro.
        (TYPES_d_integer): Use it.
        (TYPES_d_data, TYPES_cvt_long, TYPES_cvt_narrow_s): New macros.
        (TYPES_cvt_narrow): Likewise.
        (DEF_SVE_TYPES_ARRAY): Include the new types macros above.
        (preds_mx): New variable.
        (function_builder::add_overloaded_function): Allow the new feature
        set to be more restrictive than the original one.
        (function_resolver::infer_pointer_type): Remove qualifiers from
        the pointer type before printing it.
        (function_resolver::require_matching_pointer_type): New function.
        (function_resolver::resolve_sv_displacement): Handle functions
        that don't support 32-bit vector indices or svint32_t vector offsets.
        (function_resolver::finish_opt_n_resolution): Take the inferred type
        as a separate argument.
        (function_resolver::resolve_unary): Optionally treat all forms in
        the same way as normal merging functions.
        (gimple_folder::redirect_call): New function.
        (function_expander::prepare_gather_address_operands): Add an argument
        that says whether scaled forms are available.  If they aren't,
        handle scaling of vector indices and don't add the extension and
        scaling operands.
        (function_expander::map_to_unspecs): If aarch64_sve isn't available,
        fall back to using cond_* instead.
        * config/aarch64/aarch64-sve-builtins-functions.h (rtx_code_function):
        Split out the member variables into...
        (rtx_code_function_base): ...this new base class.
        (rtx_code_function_rotated): Inherit rtx_code_function_base.
        (unspec_based_function): Split out the member variables into...
        (unspec_based_function_base): ...this new base class.
        (unspec_based_function_rotated): Inherit unspec_based_function_base.
        (unspec_based_function_exact_insn): New class.
        (unspec_based_add_function, unspec_based_add_lane_function)
        (unspec_based_lane_function, unspec_based_pred_function)
        (unspec_based_qadd_function, unspec_based_qadd_lane_function)
        (unspec_based_qsub_function, unspec_based_qsub_lane_function)
        (unspec_based_sub_function, unspec_based_sub_lane_function): New
        typedefs.
        (unspec_based_fused_function): New class.
        (unspec_based_mla_function, unspec_based_mls_function): New typedefs.
        (unspec_based_fused_lane_function): New class.
        (unspec_based_mla_lane_function, unspec_based_mls_lane_function): New
        typedefs.
        (CODE_FOR_MODE1): New macro.
        (fixed_insn_function): New class.
        (while_comparison): Likewise.
        * config/aarch64/aarch64-sve-builtins-shapes.h (binary_long_lane)
        (binary_long_opt_n, binary_narrowb_opt_n, binary_narrowt_opt_n)
        (binary_to_uint, binary_wide, binary_wide_opt_n, compare, compare_ptr)
        (load_ext_gather_index_restricted, load_ext_gather_offset_restricted)
        (load_gather_sv_restricted, shift_left_imm_long): Declare.
        (shift_left_imm_to_uint, shift_right_imm_narrowb): Likewise.
        (shift_right_imm_narrowt, shift_right_imm_narrowb_to_uint): Likewise.
        (shift_right_imm_narrowt_to_uint, store_scatter_index_restricted)
        (store_scatter_offset_restricted, tbl_tuple, ternary_long_lane)
        (ternary_long_opt_n, ternary_qq_lane_rotate, ternary_qq_rotate)
        (ternary_shift_left_imm, ternary_shift_right_imm, ternary_uint)
        (unary_convert_narrowt, unary_long, unary_narrowb, unary_narrowt)
        (unary_narrowb_to_uint, unary_narrowt_to_uint, unary_to_int): Likewise.
        * config/aarch64/aarch64-sve-builtins-shapes.cc (apply_predication):
        Also add an initial argument for unary_convert_narrowt, regardless
        of the predication type.
        (build_32_64): Allow loads and stores to specify MODE_none.
        (build_sv_index64, build_sv_uint_offset): New functions.
        (long_type_suffix): New function.
        (binary_imm_narrowb_base, binary_imm_narrowt_base): New classes.
        (binary_imm_long_base, load_gather_sv_base): Likewise.
        (shift_right_imm_narrow_wrapper, ternary_shift_imm_base): Likewise.
        (ternary_resize2_opt_n_base, ternary_resize2_lane_base): Likewise.
        (unary_narrowb_base, unary_narrowt_base): Likewise.
        (binary_long_lane_def, binary_long_lane): New shape.
        (binary_long_opt_n_def, binary_long_opt_n): Likewise.
        (binary_narrowb_opt_n_def, binary_narrowb_opt_n): Likewise.
        (binary_narrowt_opt_n_def, binary_narrowt_opt_n): Likewise.
        (binary_to_uint_def, binary_to_uint): Likewise.
        (binary_wide_def, binary_wide): Likewise.
        (binary_wide_opt_n_def, binary_wide_opt_n): Likewise.
        (compare_def, compare): Likewise.
        (compare_ptr_def, compare_ptr): Likewise.
        (load_ext_gather_index_restricted_def,
        load_ext_gather_index_restricted): Likewise.
        (load_ext_gather_offset_restricted_def,
        load_ext_gather_offset_restricted): Likewise.
        (load_gather_sv_def): Inherit from load_gather_sv_base.
        (load_gather_sv_restricted_def, load_gather_sv_restricted): New shape.
        (shift_left_imm_def, shift_left_imm): Likewise.
        (shift_left_imm_long_def, shift_left_imm_long): Likewise.
        (shift_left_imm_to_uint_def, shift_left_imm_to_uint): Likewise.
        (store_scatter_index_restricted_def,
        store_scatter_index_restricted): Likewise.
        (store_scatter_offset_restricted_def,
        store_scatter_offset_restricted): Likewise.
        (tbl_tuple_def, tbl_tuple): Likewise.
        (ternary_long_lane_def, ternary_long_lane): Likewise.
        (ternary_long_opt_n_def, ternary_long_opt_n): Likewise.
        (ternary_qq_lane_def): Inherit from ternary_resize2_lane_base.
        (ternary_qq_lane_rotate_def, ternary_qq_lane_rotate): New shape
        (ternary_qq_opt_n_def): Inherit from ternary_resize2_opt_n_base.
        (ternary_qq_rotate_def, ternary_qq_rotate): New shape.
        (ternary_shift_left_imm_def, ternary_shift_left_imm): Likewise.
        (ternary_shift_right_imm_def, ternary_shift_right_imm): Likewise.
        (ternary_uint_def, ternary_uint): Likewise.
        (unary_convert): Fix typo in comment.
        (unary_convert_narrowt_def, unary_convert_narrowt): New shape.
        (unary_long_def, unary_long): Likewise.
        (unary_narrowb_def, unary_narrowb): Likewise.
        (unary_narrowt_def, unary_narrowt): Likewise.
        (unary_narrowb_to_uint_def, unary_narrowb_to_uint): Likewise.
        (unary_narrowt_to_uint_def, unary_narrowt_to_uint): Likewise.
        (unary_to_int_def, unary_to_int): Likewise.
        * config/aarch64/aarch64-sve-builtins-base.cc (unspec_cmla)
        (unspec_fcmla, unspec_cond_fcmla, expand_mla_mls_lane): New functions.
        (svasrd_impl): Delete.
        (svcadd_impl::expand): Handle integer operations too.
        (svcmla_impl::expand, svcmla_lane::expand): Likewise, using the
        new functions to derive the unspec numbers.
        (svmla_svmls_lane_impl): Replace with...
        (svmla_lane_impl, svmls_lane_impl): ...these new classes.  Handle
        integer operations too.
        (svwhile_impl): Rename to...
        (svwhilelx_impl): ...this and inherit from while_comparison.
        (svasrd): Use unspec_based_function.
        (svmla_lane): Use svmla_lane_impl.
        (svmls_lane): Use svmls_lane_impl.
        (svrecpe, svrsqrte): Handle unsigned integer operations too.
        (svwhilele, svwhilelt): Use svwhilelx_impl.
        * config/aarch64/aarch64-sve-builtins-sve2.h: New file.
        * config/aarch64/aarch64-sve-builtins-sve2.cc: Likewise.
        * config/aarch64/aarch64-sve-builtins-sve2.def: Likewise.
        * config/aarch64/aarch64-sve-builtins.def: Include
        aarch64-sve-builtins-sve2.def.

2020-01-09  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_sve_arith_immediate_p)
        (aarch64_sve_sqadd_sqsub_immediate_p): Add a machine_mode argument.
        * config/aarch64/aarch64.c (aarch64_sve_arith_immediate_p)
        (aarch64_sve_sqadd_sqsub_immediate_p): Likewise.  Handle scalar
        immediates as well as vector ones.
        * config/aarch64/predicates.md (aarch64_sve_arith_immediate)
        (aarch64_sve_sub_arith_immediate, aarch64_sve_qadd_immediate)
        (aarch64_sve_qsub_immediate): Update calls accordingly.

2020-01-09  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve2.md: Add banner comments.
        (<su>mulh<r>s<mode>3): Move further up file.
        (<su>mull<bt><Vwide>, <r>shrnb<mode>, <r>shrnt<mode>)
        (*aarch64_sve2_sra<mode>): Move further down file.
        * config/aarch64/t-aarch64 (s-check-sve-md): Check aarch64-sve2.md too.

2020-01-09  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/iterators.md (SVE_WHILE): Add UNSPEC_WHILERW
        and UNSPEC_WHILEWR.
        (while_optab_cmp): Handle them.
        * config/aarch64/aarch64-sve.md
        (*while_<while_optab_cmp><GPI:mode><PRED_ALL:mode>_ptest): Make public
        and add a "@" marker.
        * config/aarch64/aarch64-sve2.md (check_<raw_war>_ptrs<mode>): Use it
        instead of gen_aarch64_sve2_while_ptest.
        (@aarch64_sve2_while<cmp_op><GPI:mode><PRED_ALL:mode>_ptest): Delete.

2020-01-09  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.md (UNSPEC_WHILE_LE): Rename to...
        (UNSPEC_WHILELE): ...this.
        (UNSPEC_WHILE_LO): Rename to...
        (UNSPEC_WHILELO): ...this.
        (UNSPEC_WHILE_LS): Rename to...
        (UNSPEC_WHILELS): ...this.
        (UNSPEC_WHILE_LT): Rename to...
        (UNSPEC_WHILELT): ...this.
        * config/aarch64/iterators.md (SVE_WHILE): Update accordingly.
        (cmp_op, while_optab_cmp): Likewise.
        * config/aarch64/aarch64.c (aarch64_sve_move_pred_via_while): Likewise.
        * config/aarch64/aarch64-sve-builtins-base.cc (svwhilele): Likewise.
        (svwhilelt): Likewise.

2020-01-09  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve-builtins-shapes.h (unary_count): Delete.
        (unary_to_uint): Define.
        * config/aarch64/aarch64-sve-builtins-shapes.cc (unary_count_def)
        (unary_count): Rename to...
        (unary_to_uint_def, unary_to_uint): ...this.
        * config/aarch64/aarch64-sve-builtins-base.def: Update accordingly.

2020-01-09  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve-builtins-functions.h
        (code_for_mode_function): New class.
        (CODE_FOR_MODE0, QUIET_CODE_FOR_MODE0): New macros.
        * config/aarch64/aarch64-sve-builtins-base.cc (svcompact_impl)
        (svext_impl, svmul_lane_impl, svsplice_impl, svtmad_impl): Delete.
        (svcompact, svext, svsplice): Use QUIET_CODE_FOR_MODE0.
        (svmul_lane, svtmad): Use CODE_FOR_MODE0.

2020-01-09  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/iterators.md (addsub): New code attribute.
        * config/aarch64/aarch64-simd.md (aarch64_<su_optab><optab><mode>):
        Re-express as...
        (aarch64_<su_optab>q<addsub><mode>): ...this, making the same change
        in the asm string and attributes.  Fix indentation.
        * config/aarch64/aarch64-sve.md (@aarch64_<su_optab><optab><mode>):
        Re-express as...
        (@aarch64_sve_<optab><mode>): ...this.
        * config/aarch64/aarch64-sve-builtins.h
        (function_expander::expand_signed_unpred_op): Delete.
        * config/aarch64/aarch64-sve-builtins.cc
        (function_expander::expand_signed_unpred_op): Likewise.
        (function_expander::map_to_rtx_codes): If the optab isn't defined,
        try using code_for_aarch64_sve instead.
        * config/aarch64/aarch64-sve-builtins-base.cc (svqadd_impl): Delete.
        (svqsub_impl): Likewise.
        (svqadd, svqsub): Use rtx_code_function instead.

2020-01-09  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/iterators.md (SRHSUB, URHSUB): Delete.
        (HADDSUB, sur, addsub): Remove them.

2020-01-09  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-nrv.c (pass_return_slot::execute): Handle all internal
        functions the same way, rather than singling out those that
        aren't mapped directly to optabs.

2020-01-09  Richard Sandiford  <richard.sandiford@arm.com>

        * target.def (compatible_vector_types_p): New target hook.
        * hooks.h (hook_bool_const_tree_const_tree_true): Declare.
        * hooks.c (hook_bool_const_tree_const_tree_true): New function.
        * doc/tm.texi.in (TARGET_COMPATIBLE_VECTOR_TYPES_P): New hook.
        * doc/tm.texi: Regenerate.
        * gimple-expr.c: Include target.h.
        (useless_type_conversion_p): Use targetm.compatible_vector_types_p.
        * config/aarch64/aarch64.c (aarch64_compatible_vector_types_p): New
        function.
        (TARGET_COMPATIBLE_VECTOR_TYPES_P): Define.
        * config/aarch64/aarch64-sve-builtins.cc (gimple_folder::convert_pred):
        Use the original predicate if it already has a suitable type.

2020-01-09  Martin Jambor  <mjambor@suse.cz>

        * cgraph.h (cgraph_edge): Make remove, set_call_stmt, make_direct,
        resolve_speculation and redirect_call_stmt_to_callee static.  Change
        return type of set_call_stmt to cgraph_edge *.
        * auto-profile.c (afdo_indirect_call): Adjust call to
        redirect_call_stmt_to_callee.
        * cgraph.c (cgraph_edge::set_call_stmt): Make return cgraph-edge *,
        make the this pointer explicit, adjust self-recursive calls and the
        call top make_direct.  Return the resulting edge.
        (cgraph_edge::remove): Make this pointer explicit.
        (cgraph_edge::resolve_speculation): Likewise, adjust call to remove.
        (cgraph_edge::make_direct): Likewise, adjust call to
        resolve_speculation.
        (cgraph_edge::redirect_call_stmt_to_callee): Likewise, also adjust
        call to set_call_stmt.
        (cgraph_update_edges_for_call_stmt_node): Update call to
        set_call_stmt and remove.
        * cgraphclones.c (cgraph_node::set_call_stmt_including_clones):
        Renamed edge to master_edge.  Adjusted calls to set_call_stmt.
        (cgraph_node::create_edge_including_clones): Moved "first" definition
        of edge to the block where it was used.  Adjusted calls to
        set_call_stmt.
        (cgraph_node::remove_symbol_and_inline_clones): Adjust call to
        cgraph_edge::remove.
        * cgraphunit.c (walk_polymorphic_call_targets): Adjusted calls to
        make_direct and redirect_call_stmt_to_callee.
        * ipa-fnsummary.c (redirect_to_unreachable): Adjust calls to
        resolve_speculation and make_direct.
        * ipa-inline-transform.c (inline_transform): Adjust call to
        redirect_call_stmt_to_callee.
        (check_speculations_1):: Adjust call to resolve_speculation.
        * ipa-inline.c (resolve_noninline_speculation): Adjust call to
        resolve-speculation.
        (inline_small_functions): Adjust call to resolve_speculation.
        (ipa_inline): Likewise.
        * ipa-prop.c (ipa_make_edge_direct_to_target): Adjust call to
        make_direct.
        * ipa-visibility.c (function_and_variable_visibility): Make iteration
        safe with regards to edge removal, adjust calls to
        redirect_call_stmt_to_callee.
        * ipa.c (walk_polymorphic_call_targets): Adjust calls to make_direct
        and redirect_call_stmt_to_callee.
        * multiple_target.c (create_dispatcher_calls): Adjust call to
        redirect_call_stmt_to_callee
        (redirect_to_specific_clone): Likewise.
        * tree-cfgcleanup.c (delete_unreachable_blocks_update_callgraph):
        Adjust calls to cgraph_edge::remove.
        * tree-inline.c (copy_bb): Adjust call to set_call_stmt.
        (redirect_all_calls): Adjust call to redirect_call_stmt_to_callee.
        (expand_call_inline): Adjust call to cgraph_edge::remove.

2020-01-09  Martin Liska  <mliska@suse.cz>

        * params.opt: Set Optimization for
        param_max_speculative_devirt_maydefs.

2020-01-09  Martin Sebor  <msebor@redhat.com>

        PR middle-end/93200
        PR fortran/92956
        * builtins.c (compute_objsize): Avoid handling MEM_REFs of vector type.

2020-01-09  Martin Liska  <mliska@suse.cz>

        * auto-profile.c (auto_profile): Use opt_for_fn
        for a parameter.
        * ipa-cp.c (ipcp_lattice::add_value): Likewise.
        (propagate_vals_across_arith_jfunc): Likewise.
        (hint_time_bonus): Likewise.
        (incorporate_penalties): Likewise.
        (good_cloning_opportunity_p): Likewise.
        (perform_estimation_of_a_value): Likewise.
        (estimate_local_effects): Likewise.
        (ipcp_propagate_stage): Likewise.
        * ipa-fnsummary.c (decompose_param_expr): Likewise.
        (set_switch_stmt_execution_predicate): Likewise.
        (analyze_function_body): Likewise.
        * ipa-inline-analysis.c (offline_size): Likewise.
        * ipa-inline.c (early_inliner): Likewise.
        * ipa-prop.c (ipa_analyze_node): Likewise.
        (ipcp_transform_function): Likewise.
        * ipa-sra.c (process_scan_results): Likewise.
        (ipa_sra_summarize_function): Likewise.
        * params.opt: Rename ipcp-unit-growth to
        ipa-cp-unit-growth.  Add Optimization for various
        IPA-related parameters.

2020-01-09  Richard Biener  <rguenther@suse.de>

        PR middle-end/93054
        * gimplify.c (gimplify_expr): Deal with NOP definitions.

2020-01-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/93040
        * gimple-ssa-store-merging.c (find_bswap_or_nop): Raise search limit.

2020-01-09  Georg-Johann Lay  <avr@gjlay.de>

        * common/config/avr/avr-common.c (avr_option_optimization_table)
        [OPT_LEVELS_1_PLUS]: Set -fsplit-wide-types-early.

2020-01-09  Martin Liska  <mliska@suse.cz>

        * cgraphclones.c (symbol_table::materialize_all_clones):
        Use cgraph_node::dump_name.

2020-01-09  Jakub Jelinek  <jakub@redhat.com>

        PR inline-asm/93202
        * config/riscv/riscv.c (riscv_print_operand_reloc): Use
        output_operand_lossage instead of gcc_unreachable.
        * doc/md.texi (riscv f constraint): Fix typo.

        PR target/93141
        * config/i386/i386.md (subv<mode>4): Use SWIDWI iterator instead of
        SWI.  Use <general_hilo_operand> instead of <general_operand>.  Use
        CONST_SCALAR_INT_P instead of CONST_INT_P.
        (*subv<mode>4_1): Rename to ...
        (subv<mode>4_1): ... this.
        (*subv<dwi>4_doubleword, *addv<dwi>4_doubleword_1): New
        define_insn_and_split patterns.
        (*subv<mode>4_overflow_1, *addv<mode>4_overflow_2): New define_insn
        patterns.

2020-01-08  David Malcolm  <dmalcolm@redhat.com>

        * vec.c (class selftest::count_dtor): New class.
        (selftest::test_auto_delete_vec): New test.
        (selftest::vec_c_tests): Call it.
        * vec.h (class auto_delete_vec): New class template.
        (auto_delete_vec<T>::~auto_delete_vec): New dtor.

2020-01-08  David Malcolm  <dmalcolm@redhat.com>

        * sbitmap.h (auto_sbitmap): Add operator const_sbitmap.

2020-01-08  Jim Wilson  <jimw@sifive.com>

        * config/riscv/riscv.c (riscv_legitimize_tls_address): Ifdef out
        use of TLS_MODEL_LOCAL_EXEC when not pic.

2020-01-08  David Malcolm  <dmalcolm@redhat.com>

        * hash-map-tests.c (selftest::test_map_of_strings_to_int): Fix
        memory leak.

2020-01-08  Jakub Jelinek  <jakub@redhat.com>

        PR target/93187
        * config/i386/i386.md (*stack_protect_set_2_<mode> peephole2,
        *stack_protect_set_3 peephole2): Also check that the second
        insns source is general_operand.

        PR target/93174
        * config/i386/i386.md (addcarry<mode>_0): Use nonimmediate_operand
        predicate for output operand instead of register_operand.
        (addcarry<mode>, addcarry<mode>_1): Likewise.  Add alternative with
        memory destination and non-memory operands[2].

2020-01-08  Martin Liska  <mliska@suse.cz>

        * cgraph.c (cgraph_node::dump): Use ::dump_name or
        ::dump_asm_name instead of (::name or ::asm_name).
        * cgraphclones.c (symbol_table::materialize_all_clones): Likewise.
        * cgraphunit.c (walk_polymorphic_call_targets): Likewise.
        (analyze_functions): Likewise.
        (expand_all_functions): Likewise.
        * ipa-cp.c (ipcp_cloning_candidate_p): Likewise.
        (propagate_bits_across_jump_function): Likewise.
        (dump_profile_updates): Likewise.
        (ipcp_store_bits_results): Likewise.
        (ipcp_store_vr_results): Likewise.
        * ipa-devirt.c (dump_targets): Likewise.
        * ipa-fnsummary.c (analyze_function_body): Likewise.
        * ipa-hsa.c (check_warn_node_versionable): Likewise.
        (process_hsa_functions): Likewise.
        * ipa-icf.c (sem_item_optimizer::merge_classes): Likewise.
        (set_alias_uids): Likewise.
        * ipa-inline-transform.c (save_inline_function_body): Likewise.
        * ipa-inline.c (recursive_inlining): Likewise.
        (inline_to_all_callers_1): Likewise.
        (ipa_inline): Likewise.
        * ipa-profile.c (ipa_propagate_frequency_1): Likewise.
        (ipa_propagate_frequency): Likewise.
        * ipa-prop.c (ipa_make_edge_direct_to_target): Likewise.
        (remove_described_reference): Likewise.
        * ipa-pure-const.c (worse_state): Likewise.
        (check_retval_uses): Likewise.
        (analyze_function): Likewise.
        (propagate_pure_const): Likewise.
        (propagate_nothrow): Likewise.
        (dump_malloc_lattice): Likewise.
        (propagate_malloc): Likewise.
        (pass_local_pure_const::execute): Likewise.
        * ipa-visibility.c (optimize_weakref): Likewise.
        (function_and_variable_visibility): Likewise.
        * ipa.c (symbol_table::remove_unreachable_nodes): Likewise.
        (ipa_discover_variable_flags): Likewise.
        * lto-streamer-out.c (output_function): Likewise.
        (output_constructor): Likewise.
        * tree-inline.c (copy_bb): Likewise.
        * tree-ssa-structalias.c (ipa_pta_execute): Likewise.
        * varpool.c (symbol_table::remove_unreferenced_decls): Likewise.

2020-01-08  Richard Biener  <rguenther@suse.de>

        PR middle-end/93199
        * tree-eh.c (sink_clobbers): Update virtual operands for
        the first and last stmt only.  Add a dry-run capability.
        (pass_lower_eh_dispatch::execute): Perform clobber sinking
        after CFG manipulations and in RPO order to catch all
        secondary opportunities reliably.

2020-01-08  Georg-Johann Lay  <avr@gjlay.de>

        PR target/93182
        * doc/invoke.texi (AVR Options) <-nodevicespecs>: Document.

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

        PR middle-end/93199
        * gimple-fold.c (rewrite_to_defined_overflow): Mark stmt modified.
        * tree-ssa-loop-im.c (move_computations_worker): Properly adjust
        virtual operand, also updating SSA use.
        * gimple-loop-interchange.cc (loop_cand::undo_simple_reduction):
        Update stmt after resetting virtual operand.
        (tree_loop_interchange::move_code_to_inner_loop): Likewise.
        * gimple-iterator.c (gsi_remove): When not removing the stmt
        permanently do not delink immediate uses or mark the stmt modified.

2020-01-08  Martin Liska  <mliska@suse.cz>

        * ipa-fnsummary.c (dump_ipa_call_summary): Use symtab_node::dump_name.
        (ipa_call_context::estimate_size_and_time): Likewise.
        (inline_analyze_function): Likewise.

2020-01-08  Martin Liska  <mliska@suse.cz>

        * cgraph.c (cgraph_node::dump): Use systematically
        dump_asm_name.

2020-01-08  Georg-Johann Lay  <avr@gjlay.de>

        Add -nodevicespecs option for avr.

        PR target/93182
        * config/avr/avr.opt (-nodevicespecs): New driver option.
        * config/avr/driver-avr.c (avr_devicespecs_file): Only issue
        "-specs=device-specs/..." if that option is not set.
        * doc/invoke.texi (AVR Options) <-nodevicespecs>: Document.

2020-01-08  Georg-Johann Lay  <avr@gjlay.de>

        Implement 64-bit double functions for avr.

        PR target/92055
        * config.gcc (tm_defines) [target=avr]: Support --with-libf7,
        --with-double-comparison.
        * doc/install.texi: Document them.
        * config/avr/avr-c.c (avr_cpu_cpp_builtins)
        <WITH_LIBF7_LIBGCC, WITH_LIBF7_MATH, WITH_LIBF7_MATH_SYMBOLS>
        <WITH_DOUBLE_COMPARISON>: New built-in defines.
        * doc/invoke.texi (AVR Built-in Macros): Document them.
        * config/avr/avr-protos.h (avr_float_lib_compare_returns_bool): New.
        * config/avr/avr.c (avr_float_lib_compare_returns_bool): New function.
        * config/avr/avr.h (FLOAT_LIB_COMPARE_RETURNS_BOOL): New macro.

2020-01-08  Richard Earnshaw  <rearnsha@arm.com>

        PR target/93188
        * config/arm/t-multilib (MULTILIB_MATCHES): Add rules to match
        armv7-a{+mp,+sec,+mp+sec} to appropriate armv7 multilib variants
        when only building rm-profile multilibs.

2020-01-08  Feng Xue  <fxue@os.amperecomputing.com>

        PR ipa/93084
        * ipa-cp.c (self_recursively_generated_p): Find matched aggregate
        lattice for a value to check.
        (propagate_vals_across_arith_jfunc): Add an assertion to ensure
        finite propagation in self-recursive scc.

2020-01-08  Luo Xiong Hu  <luoxhu@linux.ibm.com>

        * ipa-inline.c (caller_growth_limits): Restore the AND.

2020-01-07  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn-valu.md (VEC_1REG_INT_ALT): Delete iterator.
        (VEC_ALLREG_ALT): New iterator.
        (VEC_ALLREG_INT_MODE): New iterator.
        (VCMP_MODE): New iterator.
        (VCMP_MODE_INT): New iterator.
        (vec_cmpu<mode>di): Use VCMP_MODE_INT.
        (vec_cmp<u>v64qidi): New define_expand.
        (vec_cmp<mode>di_exec): Use VCMP_MODE.
        (vec_cmpu<mode>di_exec): New define_expand.
        (vec_cmp<u>v64qidi_exec): New define_expand.
        (vec_cmp<mode>di_dup): Use VCMP_MODE.
        (vec_cmp<mode>di_dup_exec): Use VCMP_MODE.
        (vcond<VEC_ALL1REG_MODE:mode><VEC_1REG_ALT:mode>): Rename ...
        (vcond<VEC_ALLREG_MODE:mode><VEC_ALLREG_ALT:mode>): ... to this.
        (vcond<VEC_ALL1REG_MODE:mode><VEC_1REG_ALT:mode>_exec): Rename ...
        (vcond<VEC_ALLREG_MODE:mode><VEC_ALLREG_ALT:mode>_exec): ... to this.
        (vcondu<VEC_ALL1REG_MODE:mode><VEC_1REG_INT_ALT:mode>): Rename ...
        (vcondu<VEC_ALLREG_MODE:mode><VEC_ALLREG_INT_MODE:mode>): ... to this.
        (vcondu<VEC_ALL1REG_MODE:mode><VEC_1REG_INT_ALT:mode>_exec): Rename ...
        (vcondu<VEC_ALLREG_MODE:mode><VEC_ALLREG_INT_MODE:mode>_exec): ... to
        this.
        * config/gcn/gcn.c (print_operand): Fix 8 and 16 bit suffixes.
        * config/gcn/gcn.md (expander): Add sign_extend and zero_extend.

2020-01-07  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/constraints.md (DA): Update description and match.
        (DB): Likewise.
        (Db): New constraint.
        * config/gcn/gcn-protos.h (gcn_inline_constant64_p): Add second
        parameter.
        * config/gcn/gcn.c (gcn_inline_constant64_p): Add 'mixed' parameter.
        Implement 'Db' mixed immediate type.
        * config/gcn/gcn-valu.md (addcv64si3<exec_vcc>): Rework constraints.
        (addcv64si3_dup<exec_vcc>): Delete.
        (subcv64si3<exec_vcc>): Rework constraints.
        (addv64di3): Rework constraints.
        (addv64di3_exec): Rework constraints.
        (subv64di3): Rework constraints.
        (addv64di3_dup): Delete.
        (addv64di3_dup_exec): Delete.
        (addv64di3_zext): Rework constraints.
        (addv64di3_zext_exec): Rework constraints.
        (addv64di3_zext_dup): Rework constraints.
        (addv64di3_zext_dup_exec): Rework constraints.
        (addv64di3_zext_dup2): Rework constraints.
        (addv64di3_zext_dup2_exec): Rework constraints.
        (addv64di3_sext_dup2): Rework constraints.
        (addv64di3_sext_dup2_exec): Rework constraints.

2020-01-07  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * doc/sourcebuild.texi (arm_little_endian, arm_nothumb): Documented
        existing target checks.

2020-01-07  Richard Biener  <rguenther@suse.de>

        * doc/install.texi: Bump minimal supported MPC version.

2020-01-07  Richard Sandiford  <richard.sandiford@arm.com>

        * langhooks-def.h (lhd_simulate_enum_decl): Declare.
        (LANG_HOOKS_SIMULATE_ENUM_DECL): Use it.
        * langhooks.c: Include stor-layout.h.
        (lhd_simulate_enum_decl): New function.
        * config/aarch64/aarch64-sve-builtins.cc (init_builtins): Call
        handle_arm_sve_h for the LTO frontend.
        (register_vector_type): Cope with null returns from pushdecl.

2020-01-07  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_sve::svbool_type_p)
        (aarch64_sve::nvectors_if_data_type): Replace with...
        (aarch64_sve::builtin_type_p): ...this.
        * config/aarch64/aarch64-sve-builtins.cc: Include attribs.h.
        (find_vector_type): Delete.
        (add_sve_type_attribute): New function.
        (lookup_sve_type_attribute): Likewise.
        (register_builtin_types): Add an "SVE type" attribute to each type.
        (register_tuple_type): Likewise.
        (svbool_type_p, nvectors_if_data_type): Delete.
        (mangle_builtin_type): Use lookup_sve_type_attribute.
        (builtin_type_p): Likewise.  Add an overload that returns the
        number of constituent vector and predicate registers.
        * config/aarch64/aarch64.c (aarch64_sve_argument_p): Delete.
        (aarch64_returns_value_in_sve_regs_p): Use aarch64_sve::builtin_type_p
        instead of aarch64_sve_argument_p.
        (aarch64_takes_arguments_in_sve_regs_p): Likewise.
        (aarch64_pass_by_reference): Likewise.
        (aarch64_function_value_1): Likewise.
        (aarch64_return_in_memory): Likewise.
        (aarch64_layout_arg): Likewise.

2020-01-07  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/93156
        * tree-ssa-ccp.c (bit_value_binop): For x * x note that the second
        least significant bit is always clear.

        PR tree-optimization/93118
        * match.pd ((x >> c) << c -> x & (-1<<c)): Add nop_convert?.  Add new
        simplifier with two intermediate conversions.

2020-01-07  Martin Liska  <mliska@suse.cz>

        * params.opt: Add Optimization for various parameters.

2020-01-07  Martin Liska  <mliska@suse.cz>

        PR ipa/83411
        * doc/extend.texi: Explain cloning for target_clone
        attribute.

2020-01-07  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/92860
        * common.opt: Make in Optimization option
        as it is affected by -O0, which is an Optimization
        option.
        * tree-inline.c (tree_inlinable_function_p):
        Use opt_for_fn for warn_inline.
        (expand_call_inline): Likewise.

2020-01-07  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/92860
        * common.opt: Make flag_ree as optimization
        attribute. 

2020-01-07  Martin Liska  <mliska@suse.cz>

        PR optimization/92860
        * params.opt: Mark param_min_crossjump_insns with Optimization
        keyword.

2020-01-07  Luo Xiong Hu  <luoxhu@linux.ibm.com>

        * ipa-inline-analysis.c (estimate_growth): Fix typo.
        * ipa-inline.c (caller_growth_limits): Use OR instead of AND.

2020-01-06  Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/rs6000.c (hard_reg_and_mode_to_addr_mask): New
        helper function to return the valid addressing formats for a given
        hard register and mode.
        (rs6000_adjust_vec_address): Call hard_reg_and_mode_to_addr_mask.

        * config/rs6000/constraints.md (Q constraint): Update
        documentation.
        * doc/md.texi (RS/6000 constraints): Update 'Q' cosntraint
        documentation.

        * config/rs6000/vsx.md (vsx_extract_<mode>_var, VSX_D iterator):
        Use 'Q' for doing vector extract from memory.
        (vsx_extract_v4sf_var): Use 'Q' for doing vector extract from
        memory.
        (vsx_extract_<mode>_var, VSX_EXTRACT_I iterator): Use 'Q' for
        doing vector extract from memory.
        (vsx_extract_<mode>_<VS_scalar>mode_var): Use 'Q' for doing vector
        extract from memory.

        * config/rs6000/rs6000.c (rs6000_adjust_vec_address): Add support
        for the offset being 34-bits when -mcpu=future is used.

2020-01-06  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.md: Revert change to use ordered_comparison_operator
        instead of cmpib_comparison_operator in cmpib patterns.
        * config/pa/predicates.md (cmpib_comparison_operator): Revert removal
        of cmpib_comparison_operator.  Revise comment.

2020-01-06  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vect-slp.c (vect_build_slp_tree_1): Require all shifts
        in an IFN_DIV_POW2 node to be equal.

2020-01-06  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vect-stmts.c (vect_check_load_store_mask): Rename to...
        (vect_check_scalar_mask): ...this.
        (vectorizable_store, vectorizable_load): Update call accordingly.
        (vectorizable_call): Use vect_check_scalar_mask to check the mask
        argument in calls to conditional internal functions.

2020-01-06  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn-valu.md (subv64di3): Use separate alternatives for
        '0' matching inputs.
        (subv64di3_exec): Likewise.

2020-01-06  Bryan Stenson  <bryan@siliconvortex.com>

        * config/mips/mips.c (vr4130_align_insns): Fix typo.
        * doc/md.texi (movstr): Likewise.

2020-01-06  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn-valu.md (vec_extract<mode><scalar_mode>): Add early
        clobber.

2020-01-06  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/t-aarch64 ($(srcdir)/config/aarch64/aarch64-tune.md):
        Depend on...
        (s-aarch64-tune-md): ...this new stamp file.  Pipe the new contents
        to a temporary file and use move-if-change to update the real
        file where necessary.

2020-01-06  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve.md (@aarch64_sel_dup<mode>): Use Upl
        rather than Upa for CPY /M.

2020-01-06  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn.c (gcn_inline_constant_p): Allow 64 as an inline
        immediate.

2020-01-06  Martin Liska  <mliska@suse.cz>

    PR tree-optimization/92860
    * params.opt: Mark param_max_combine_insns with Optimization
    keyword. 

2020-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR target/93141
        * config/i386/i386.md (SWIDWI): New mode iterator.
        (DWI, dwi): Add TImode variants.
        (addv<mode>4): Use SWIDWI iterator instead of SWI.  Use
        <general_hilo_operand> instead of <general_operand>.  Use
        CONST_SCALAR_INT_P instead of CONST_INT_P.
        (*addv<mode>4_1): Rename to ...
        (addv<mode>4_1): ... this.
        (QWI): New mode attribute.
        (*addv<dwi>4_doubleword, *addv<dwi>4_doubleword_1): New
        define_insn_and_split patterns.
        (*addv<mode>4_overflow_1, *addv<mode>4_overflow_2): New define_insn
        patterns.
        (uaddv<mode>4): Use SWIDWI iterator instead of SWI.  Use
        <general_hilo_operand> instead of <general_operand>.
        (*addcarry<mode>_1): New define_insn.
        (*add<dwi>3_doubleword_cc_overflow_1): New define_insn_and_split.

2020-01-03  Konstantin Kharlamov  <Hi-Angel@yandex.ru>

        * gdbinit.in (pr, prl, pt, pct, pgg, pgq, pgs, pge, pmz, pdd, pbs, pbm):
        Use "call" instead of "set".

2020-01-03  Martin Jambor  <mjambor@suse.cz>

        PR ipa/92917
        * ipa-cp.c (print_all_lattices): Skip functions without info.

2020-01-03  Jakub Jelinek  <jakub@redhat.com>

        PR target/93089
        * config/i386/i386-options.c (ix86_simd_clone_adjust): If
        TARGET_PREFER_AVX128, use prefer-vector-width=256 for 'c' and 'd'
        simd clones.  If TARGET_PREFER_AVX256, use prefer-vector-width=512
        for 'e' simd clones.

        PR target/93089
        * config/i386/i386.opt (x_prefer_vector_width_type): Remove TargetSave
        entry.
        (mprefer-vector-width=): Add Save.
        * config/i386/i386-options.c (ix86_target_string): Add PVW argument, print
        -mprefer-vector-width= if non-zero.  Fix up -mfpmath= comment.
        (ix86_debug_options, ix86_function_specific_print): Adjust
        ix86_target_string callers.
        (ix86_valid_target_attribute_inner_p): Handle prefer-vector-width=.
        (ix86_valid_target_attribute_tree): Likewise.
        * config/i386/i386-options.h (ix86_target_string): Add PVW argument.
        * config/i386/i386-expand.c (ix86_expand_builtin): Adjust
        ix86_target_string caller.

        PR target/93110
        * config/i386/i386.md (abs<mode>2): Use expand_simple_binop instead of
        emitting ASHIFTRT, XOR and MINUS by hand.  Use gen_int_mode with QImode
        instead of gen_int_shift_amount + convert_modes.

        PR rtl-optimization/93088
        * loop-iv.c (find_single_def_src): Punt after looking through
        128 reg copies for regs with single definitions.  Move definitions
        to first uses.

2020-01-02  Dennis Zhang  <dennis.zhang@arm.com>

        * config/arm/arm-c.c (arm_cpu_builtins): Define
        __ARM_FEATURE_MATMUL_INT8, __ARM_FEATURE_BF16_VECTOR_ARITHMETIC,
        __ARM_FEATURE_BF16_SCALAR_ARITHMETIC, and
        __ARM_BF16_FORMAT_ALTERNATIVE when enabled.
        * config/arm/arm-cpus.in (armv8_6, i8mm, bf16): New features.
        * config/arm/arm-tables.opt: Regenerated.
        * config/arm/arm.c (arm_option_reconfigure_globals): Initialize
        arm_arch_i8mm and arm_arch_bf16 when enabled.
        * config/arm/arm.h (TARGET_I8MM): New macro.
        (TARGET_BF16_FP, TARGET_BF16_SIMD): Likewise.
        * config/arm/t-aprofile: Add matching rules for -march=armv8.6-a.
        * config/arm/t-arm-elf (all_v8_archs): Add armv8.6-a.
        * config/arm/t-multilib: Add matching rules for -march=armv8.6-a.
        (v8_6_a_simd_variants): New.
        (v8_*_a_simd_variants): Add i8mm and bf16.
        * doc/invoke.texi (armv8.6-a, i8mm, bf16): Document new options.

2020-01-02  Jakub Jelinek  <jakub@redhat.com>

        PR ipa/93087
        * predict.c (compute_function_frequency): Don't call
        warn_function_cold on functions that already have cold attribute.

2020-01-01  John David Anglin  <danglin@gcc.gnu.org>

        PR target/67834
        * config/pa/pa.c (pa_elf_select_rtx_section): New.  Put references to
        COMDAT group function labels in .data.rel.ro.local section.
        * config/pa/pa32-linux.h (TARGET_ASM_SELECT_RTX_SECTION): Define.

        PR target/93111
        * config/pa/pa.md (scc): Use ordered_comparison_operator instead of
        comparison_operator in B and S integer comparisons.  Likewise, use
        ordered_comparison_operator instead of cmpib_comparison_operator in
        cmpib patterns.
        * config/pa/predicates.md (cmpib_comparison_operator): Remove.

2020-01-01  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.

2020-01-01  Jan Hubicka  <hubicka@ucw.cz>

        * ipa.c (walk_polymorphic_call_targets): Fix updating of overall
        summary.

2020-01-01  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/93098
        * match.pd (popcount): For shift amounts, use integer_onep
        or wi::to_widest () == cst instead of tree_to_uhwi () == cst
        tests.  Make sure that precision is power of two larger than or equal
        to 16.  Ensure shift is never negative.  Use HOST_WIDE_INT_UC macro
        instead of ULL suffixed constants.  Formatting fixes.
\f
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