Now that PR63304 is fixed and we have an option to address
any part of the memory using adrp / add or adrp / ldr instructions
it makes sense to switch out literal pools into their own
mergeable sections by default.

This would mean that by default we could now start getting
the benefits of constant sharing across the board, potentially
improving code size. The other advantage of doing so, for the
security conscious is that this prevents intermingling of literal
pools with code.

Wilco's kindly done some performance measurements and suggests that
there is not really a performance regression in doing this.
I've looked at the code size for SPEC2k6 today at -Ofast and
in general there is a good code size improvement as expected
by sharing said constants.

Tested on aarch64-none-elf with no regressions and bootstrapped
and regression tested in my tree for a number of days now.

2015-11-05  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * config/aarch64/aarch64.c
        (aarch64_can_use_per_function_literal_pools_p): New.
        (aarch64_use_blocks_for_constant_p): Adjust declaration
        and use aarch64_can_use_function_literal_pools_p.
        (aarch64_select_rtx_section): Update.

From-SVN: r229795

targhooks.c (default_get_mask_mode): Use BLKmode in case target doesn't support required vector mode.

gcc/

2015-10-29  Ilya Enkovich  <enkovich.gnu@gmail.com>

	* targhooks.c (default_get_mask_mode): Use BLKmode in
	case target doesn't support required vector mode.
	* stor-layout.c (layout_type); Check for BLKmode.

From-SVN: r229794

2015-11-05  Richard Biener  <rguenther@suse.de>

	* gcc.dg/tree-ssa/loadpre2.c: Avoid undefined behavior due to
	uninitialized variables.
	* gcc.dg/tree-ssa/loadpre21.c: Likewise.
	* gcc.dg/tree-ssa/loadpre22.c: Likewise.
	* gcc.dg/tree-ssa/loadpre23.c: Likewise.
	* gcc.dg/tree-ssa/loadpre24.c: Likewise.
	* gcc.dg/tree-ssa/loadpre25.c: Likewise.
	* gcc.dg/tree-ssa/loadpre4.c: Likewise.
	* gcc.dg/ipa/inlinehint-2.c: Likewise.
	* gcc.dg/ipa/pure-const-2.c: Likewise.
	* gcc.dg/tree-ssa/loop-1.c: Likewise.
	* gcc.dg/tree-ssa/loop-23.c: Likewise.
	* gcc.dg/tree-ssa/pr22051-2.c: Likewise.
	* gcc.dg/tree-ssa/ssa-pre-3.c: Likewise.
	* gcc.dg/tree-ssa/ssa-sccvn-3.c: Likewise.
	* gcc.dg/vect/pr30858.c: Likewise.
	* gcc.dg/vect/pr33866.c: Likewise.
	* gcc.dg/vect/pr37027.c: Likewise.
	* c-c++-common/ubsan/null-10.c: Likewise.
	* gcc.target/i386/incoming-8.c: Likewise.

From-SVN: r229793

From-SVN: r229790

	gcc/cp/
	* (cp_parser_oacc_single_int_clause): New function.
	(cp_parser_oacc_clause_vector_length): Delete.
	(cp_parser_omp_clause_num_gangs): Delete.
	(cp_parser_omp_clause_num_workers): Delete.
	(cp_parser_oacc_all_clauses): Use cp_parser_oacc_single_int_clause
	for num_gangs, num_workers and vector_length.

From-SVN: r229786

This map was used in the transition to the new scop detection: with the new scop
detection, we do not need this map anymore.

       * graphite-isl-ast-to-gimple.c (gcc_expression_from_isl_ast_expr_id):
       Remove use of parameter_rename_map.
       (copy_def): Remove.
       (copy_internal_parameters): Remove.
       (graphite_regenerate_ast_isl): Remove call to copy_internal_parameters.
       * sese.c (new_sese_info): Do not initialize parameter_rename_map.
       (free_sese_info): Do not free parameter_rename_map.
       (set_rename): Do not use parameter_rename_map.
       (rename_uses): Update call to set_rename.
       (graphite_copy_stmts_from_block): Do not use parameter_rename_map.
       * sese.h (parameter_rename_map_t): Remove.
       (struct sese_info_t): Remove field parameter_rename_map.

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>

From-SVN: r229783

- fix printing of ISL stmt and parameter names
- move dot_scop* functions outside of anonymous namespace.

  * graphite-isl-ast-to-gimple.c: Include tree-cfg.h.
  (translate_isl_ast_node_user): Add more dumps: call print_loops_bb.
  * graphite-scop-detection.c (dot_all_scops_1): Moved out of
  anonymous namespace.
  * graphite-sese-to-poly.c (ssa_name_version_typesize): Remove.
  (isl_id_for_pbb): Use a buffer of size 10.
  (isl_id_for_ssa_name): Same.
  * sese.c (set_rename): Add more dumps.

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>

From-SVN: r229782

	* omp-low.c (struct omp_context): Remove reduction_map field.
	(lookup_oacc_reduction, maybe_lookup_oacc_reduction): Delete.
	(new_omp_context, delete_omp_context, scan_omp_target): Remove
	reduction_map handling.
	(lower_omp_target): Remove obsolete openacc reduction handling.

From-SVN: r229781

	gcc/
	* config/nvptx/nvptx.c (nvptx_goacc_validate_dims): Add checking.

	libgomp/
	* testsuite/libgomp.oacc-fortran/reduction-1.f90: Fix dimensions
	and reduction copy.
	* testsuite/libgomp.oacc-fortran/reduction-2.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/reduction-3.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/reduction-4.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/reduction-6.f90: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/par-reduction-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-3.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/collapse-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/par-reduction-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-4.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-initial-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-5.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: New.

From-SVN: r229780

From-SVN: r229779

	* libgomp.oacc-c-c++-common/loop-red-g-1.c: New.
	* libgomp.oacc-c-c++-common/loop-red-gwv-1.c: New.
	* libgomp.oacc-c-c++-common/loop-red-v-1.c: New.
	* libgomp.oacc-c-c++-common/loop-red-v-2.c: New.
	* libgomp.oacc-c-c++-common/loop-red-w-1.c: New.
	* libgomp.oacc-c-c++-common/loop-red-w-2.c: New.
	* libgomp.oacc-c-c++-common/loop-red-wv-1.c: New.
	* libgomp.oacc-fortran/reduction-5.f90: Avoid reference var.

From-SVN: r229770

From-SVN: r229769

	* config/nvptx/nvptx.c: Include gimple headers.
	(worker_red_size, worker_red_align, worker_red_name,
	worker_red_sym): New.
	(nvptx_option_override): Initialize worker reduction buffer.
	(nvptx_file_end): Write out worker reduction buffer var.
	(nvptx_expand_shuffle, nvptx_expand_worker_addr,
	nvptx_expand_cmp_swap): New builtin expanders.
	(enum nvptx_builtins): New.
	(nvptx_builtin_decls): New.
	(nvptx_builtin_decl, nvptx_init_builtins, nvptx_expand_builtin): New
	(PTX_VECTOR_LENGTH, PTX_WORKER_LENGTH): New.
	(nvptx_get_worker_red_addr, nvptx_generate_vector_shuffle,
	nvptx_lockless_update): New helpers.
	(nvptx_goacc_reduction_setup, nvptx_goacc_reduction_init,
	nvptx_goacc_reduction_fini, nvptx_goacc_reduction_teaddown): New.
	(nvptx_goacc_reduction): New.
	(TARGET_INIT_BUILTINS, TARGET_EXPAND_BUILTIN,
	TARGET_BUILTIN_DECL): Override.
	(TARGET_GOACC_REDUCTION): Override.

Co-Authored-By: Cesar Philippidis <cesar@codesourcery.com>

From-SVN: r229768

	* internal-fn.def (GOACC_REDUCTION): New.
	* internal-fn.h (enum ifn_goacc_reduction_kind): New.
	* internal-fn.c (expand_GOACC_REDUCTION): New.
	* target.def (goacc.reduction): New OpenACC hook.
	* targhooks.h (default_goacc_reduction): Declare.
	* doc/tm.texi.in: Add TARGET_GOACC_REDUCTION.
	* doc/tm.texi: Rebuilt.
	* omp-low.c (oacc_get_reduction_array_id, oacc_max_threads,
	scan_sharing_clauses): Remove oacc reduction handling here.
	(lower_rec_input_clauses): Don't handle OpenACC reductions here.
	(oacc_lower_reduction_var_helper): Delete.
	(lower_oacc_reductions): New.
	(lower_reduction_clauses): Don't handle OpenACC reductions here.
	(lower_oacc_head_tail): Call lower_oacc_reductions.
	(oacc_gimple_assign, oacc_init_reduction_array,
	oacc_initialize_reduction_data, oacc_finalize_reduction_data,
	oacc_process_reduction_data): Delete.
	(lower_omp_target): Remove old OpenACC reduction handling.  Insert
	dummy OpenACC gang reduction for reductions at outer level.
	(oacc_loop_xform_head_tail): Transform IFN_GOACC_REDUCTION.
	(default_goacc_reduction): New.
	(execute_oacc_device_lower): Handle IFN_GOACC_REDUCTION.

From-SVN: r229767

	* cgraphunit.c (cgraph_node::expand_thunk): Call
	allocate_struct_function before init_function_start.
	(cgraph_node::expand): Use push_cfun and pop_cfun.
	* config/i386/i386.c (ix86_code_end): Call
	allocate_struct_function before init_function_start.
	* config/rs6000/rs6000.c (rs6000_code_end): Likewise.
	* function.c (init_function_start): Move preamble to all
	callers.
	* passes.c (do_per_function_toporder): Use push_cfun and pop_cfun.
	(execute_one_pass): Handle newly added TODO_discard_function.
	(execute_pass_list_1): Terminate if cfun equals to NULL.
	(execute_pass_list): Do not push and pop cfun, expect that
	cfun is set.
	* tree-pass.h (TODO_discard_function): Define.

From-SVN: r229764

libcpp/

	* config.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Remove ENABLE_CHECKING.

gcc/

	* cfganal.c (inverted_post_order_compute): Remove conditional
	compilation, use flag_checking.
	* config.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Remove ENABLE_CHECKING.
	* genconditions.c: Do not #undef ENABLE_CHECKING.
	* sese.h (bb_in_region): Comment out broken check.
	* tree-ssa-loop-manip.c (rewrite_into_loop_closed_ssa_1): Remove
	conditional compilation, use flag_checking.

From-SVN: r229758

gcc/c-family/

	* c-omp.c (c_omp_split_clauses): Remove conditional compilation. Use
	flag_checking.

gcc/cp/

	* call.c (validate_conversion_obstack): Define unconditionally.
	* constexpr.c (maybe_constant_value, fold_non_dependent_expr): Use
	gcc_checking_assert.
	* cp-tree.h: Use CHECKING_P instead of ENABLE_CHECKING.
	* decl2.c (cxx_post_compilation_parsing_cleanups): Use flag_checking.
	* mangle.c (add_substitution): Likewise.
	* method.c (maybe_explain_implicit_delete): Likewise.
	* parser.c (cp_parser_template_argument_list): Remove conditional
	compilation.
	* pt.c (check_unstripped_args): Rename to...
	(verify_unstripped_args): ... this and remove conditional compilation.
	(retrieve_specialization): Guard call of verify_unstripped_args with
	flag_checking.
	(template_parm_to_arg): Remove conditional compilation.
	(template_parms_to_args, coerce_template_parameter_pack,
	coerce_template_parms): Likewise.
	(tsubst_copy): Use flag_checking.
	(type_unification_real): Remove conditional compilation.
	(build_non_dependent_expr): Use flag_checking.
	* tree.c (build_target_expr): Remove conditional compilation, use
	gcc_checking_assert.
	* typeck.c (comptypes): Likewise.
	* typeck2.c (digest_init_r): Likewise.

From-SVN: r229756

2015-11-04  Tom de Vries  <tom@codesourcery.com>

	PR tree-optimization/67742
	* tree-ssa-structalias.c (struct fieldoff): Add restrict_pointed_type
	field.
	(push_fields_onto_fieldstack): Handle restrict_pointed_type field.
	(create_variable_info_for_1): Add and handle handle_param parameter.
	Add restrict handling.
	(create_variable_info_for): Call create_variable_info_for_1 with extra
	arg.
	(make_param_constraints): Drop restrict_name parameter.  Ignore
	vi->only_restrict_pointers.
	(intra_create_variable_infos): Call create_variable_info_for_1 with
	extra arg.  Remove restrict handling.  Call make_param_constraints with
	one less arg.

	* gcc.dg/tree-ssa/restrict-7.c: New test.
	* gcc.dg/tree-ssa/restrict-8.c: New test.

From-SVN: r229755

2015-11-04  Tom de Vries  <tom@codesourcery.com>

	* tree-ssa-structalias.c (create_variable_info_for_1): Use decl_type
	variable.

From-SVN: r229754

From-SVN: r229735

    
    I managed to add a new --goarch option to gotest without noticing that
    the script already had one.  Worse, they set different variables.
    Remove the old option in favor of the new one.
    
    Reviewed-on: https://go-review.googlesource.com/16613

From-SVN: r229734

From-SVN: r229731

gcc got rid of this target macro in 2003, so it seems safe to assume the
alternate path works fine on all targets.

libobjc/ChangeLog:

2015-11-03  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	PR libobjc/24775
	* encoding.c (objc_layout_finish_structure): Remove usage of
	ROUND_TYPE_SIZE.

From-SVN: r229727

gcc/ChangeLog:

2015-11-03  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* config/arm/coff.h: Remove.

From-SVN: r229726

	* pt.c (struct find_parameter_pack_data): Add
	type_pack_expansion_p field.
	(find_parameter_packs_r): Use it to turn 'auto' into a parameter pack.
	(uses_parameter_packs, make_pack_expansion)
	(check_for_bare_parameter_packs, fixed_parameter_pack_p): Set it.

From-SVN: r229722

	* libgomp.h (struct acc_dispatch_t): Remove args from exec_func.
	* plugin/plugin-nvptx.c (nvptx_exec): Remove sizes & kinds arg.
	(GOMP_OFFLOAD_openacc_parallel): Likewise.
	* oacc-host.c (host_openacc_exec): Likewise.
	* oacc-parallel.c (GOACC_parallel_keyed): Adjust exec_func call.

From-SVN: r229721

	* lex.c (search_line_sse42): Correctly advance the pointer to an
	aligned address.

From-SVN: r229718

PR c++-common/67882

	* c-family/c-common.h (fold_offsetof_1): Add argument.
	* c-family/c-common.c (fold_offsetof_1): Diagnose more invalid
	offsetof expressions that reference elements past the end of
	an array.

        * c-c++-common/builtin-offsetof-2.c: New test.

From-SVN: r229717

2015-11-03  Dominique d'Humieres <dominiq@lps.ens.fr>

	PR fortran/67982
	* gfortran.dg/warn_unused_function_3.f90: New test.

From-SVN: r229716

From-SVN: r229715

gimple-expr.c (useless_type_conversion_p): Reinstate type canonical check for aggregate types and beef up comment for mode...

	* gimple-expr.c (useless_type_conversion_p): Reinstate type canonical
	check for aggregate types and beef up comment for mode check.

From-SVN: r229714

From-SVN: r229713

2015-11-03  Richard Biener  <rguenther@suse.de>

	* tree-vect-data-refs.c (vect_analyze_data_refs): Do not collect
	data references here.
	* tree-vect-loop.c: Include cgraph.h.
	(vect_analyze_loop_2): Collect data references here.
	* tree-vect-slp.c (find_bb_location): Inline ...
	(vect_slp_bb): ... here.  Renamed from vect_slp_analyze_bb.
	Factor in vect_slp_transform_bb.
	(vect_slp_transform_bb): Removed.
	(vect_slp_analyze_bb_1): Collect data references here.
	* tree-vectorizer.c (pass_slp_vectorize::execute): Call
	vect_slp_bb.
	* tree-vectorizer.h (vect_slp_bb): Declare.
	(vect_slp_analyze_bb): Remove.
	(vect_slp_transform_bb): Remove.
	(find_bb_location): Remove.
	(vect_analyze_data_refs): Remove stmt count reference parameter.

From-SVN: r229712

    
    Reviewed-on: https://go-review.googlesource.com/16588

From-SVN: r229711

	* Wrap ChangeLog entries to 80 columns.

From-SVN: r229707

2015-11-03  Evgeny Stupachenko  <evstupac@gmail.com>

gcc/
	* multiple_target.c (create_dispatcher_calls): Add target check
	on ifunc.
	(create_target_clone): Change assembler name for versioned declarations.
gcc/testsuite/
	* g++.dg/ext/mvc4.C: Add dg-require-ifunc condition.
	* gcc.target/i386/mvc5.c: Ditto.
	* gcc.target/i386/mvc7.c: Add dg-require-ifunc condition and checks on
	resolver.

From-SVN: r229706

	gcc/c-family/
	* c-pragma.c (oacc_pragmas): Add "atomic".
	* c-pragma.h (pragma_kind): Add PRAGMA_OACC_ATOMIC.
	gcc/c/
	* c-parser.c (c_parser_omp_construct): Handle PRAGMA_OACC_ATOMIC.
	gcc/cp/
	* parser.c (cp_parser_omp_construct, cp_parser_pragma): Handle
	PRAGMA_OACC_ATOMIC.
	gcc/fortran/
	* gfortran.h (gfc_statement): Add ST_OACC_ATOMIC,
	ST_OACC_END_ATOMIC.
	(gfc_exec_op): Add EXEC_OACC_ATOMIC.
	* match.h (gfc_match_oacc_atomic): New prototype.
	* openmp.c (gfc_match_omp_atomic, gfc_match_oacc_atomic): New
	wrapper functions around...
	(gfc_match_omp_oacc_atomic): ... this new function.
	(oacc_code_to_statement, gfc_resolve_oacc_directive): Handle
	EXEC_OACC_ATOMIC.
	* parse.c (decode_oacc_directive): Handle "atomic", "end atomic".
	(case_exec_markers): Add ST_OACC_ATOMIC.
	(gfc_ascii_statement): Handle ST_OACC_ATOMIC, ST_OACC_END_ATOMIC.
	(parse_omp_atomic): Rename to...
	(parse_omp_oacc_atomic): ... this new function.  Add omp_p formal
	parameter.  Adjust all users.
	(parse_executable): Handle ST_OACC_ATOMIC.
	(is_oacc): Handle EXEC_OACC_ATOMIC.
	* resolve.c (gfc_resolve_blocks, gfc_resolve_code): Handle
	EXEC_OACC_ATOMIC.
	* st.c (gfc_free_statement): Handle EXEC_OACC_ATOMIC.
	* trans-openmp.c (gfc_trans_oacc_directive): Handle
	EXEC_OACC_ATOMIC.
	* trans.c (trans_code): Handle EXEC_OACC_ATOMIC.
	gcc/
	* builtins.def (DEF_GOMP_BUILTIN): Enable for flag_openacc.
	* omp-low.c (check_omp_nesting_restrictions): Allow
	GIMPLE_OMP_ATOMIC_LOAD, GIMPLE_OMP_ATOMIC_STORE inside OpenACC
	contexts.
	gcc/testsuite/
	* c-c++-common/goacc-gomp/nesting-fail-1.c: Move "atomic" tests
	from here to...
	* c-c++-common/goacc-gomp/nesting-1.c: ... here, and expect them
	to succeed.
	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/atomic_capture-1.c: New
	file.
	* testsuite/libgomp.oacc-c-c++-common/atomic_capture-2.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/atomic_rw-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/atomic_update-1.c: Likewise.
	* testsuite/libgomp.oacc-fortran/atomic_capture-1.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/atomic_rw-1.f90: New file.
	* testsuite/libgomp.oacc-fortran/atomic_update-1.f90: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/par-reduction-1.c: New file.
	* testsuite/libgomp.oacc-c-c++-common/par-reduction-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/worker-single-1a.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/worker-single-4.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/worker-single-6.c: Likewise.

From-SVN: r229703

gcc/

	* config/aarch64/aarch64-simd-builtins.def (fmulx): New.
	* config/aarch64/aarch64-simd.md (aarch64_fmulx<mode>): New.
	* config/aarch64/arm_neon.h (vmulx_f32): Rewrite to call fmulx
	builtin.
	(vmulxq_f32): Likewise.
	(vmulx_f64): New.
	(vmulxq_f64): Rewrite to call fmulx builtin.
	(vmulxs_f32): Likewise.
	(vmulxd_f64): Likewise.
	(vmulx_lane_f32): Remove.
	* config/aarch64/iterators.md (UNSPEC): Add fmulx.

gcc/testsuite/

	* gcc/testsuite/gcc.target/aarch64/simd/vmulx_f32_1.c: New.
	* gcc/testsuite/gcc.target/aarch64/simd/vmulx_f64_1.c: New.
	* gcc/testsuite/gcc.target/aarch64/simd/vmulxq_f32_1.c: New.
	* gcc/testsuite/gcc.target/aarch64/simd/vmulxq_f64_1.c: New.
	* gcc/testsuite/gcc.target/aarch64/simd/vmulxs_f32_1.c: New.
	* gcc/testsuite/gcc.target/aarch64/simd/vmulxd_f64_1.c: New.

From-SVN: r229702

gcc/:

	* config/aarch64/aarch64.md (*movhf_aarch64): Use
	aarch64_reg_or_fp_zero for second operand.

gcc/testsuite/:

	* gcc.target/aarch64/fp16/set_zero_1.c: New.

From-SVN: r229701

	* ChangeLog: Fix whitespace.
	* testsuite/ChangeLog: Ditto.

From-SVN: r229700