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

loadpre2.c: Avoid undefined behavior due to uninitialized variables.

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

Daily bump.

From-SVN: r229790

(cp_parser_oacc_single_int_clause): New function.

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

remove parameter_rename_map

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

improve debug of codegen

- 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.

* 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

nvptx.c (nvptx_goacc_validate_dims): Add checking.

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

* gnat.dg/slice9.adb: New test.

From-SVN: r229779

loop-red-g-1.c: New.

* 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

* gfortran.dg/goacc/reduction-2.f95: Delete.

From-SVN: r229769

nvptx.c: Include gimple headers.

* 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.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

Pass manager: add support for termination of pass list

* 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

ENABLE_CHECKING refactoring: remove remaining occurrences

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

ENABLE_CHECKING refactoring: C family front ends

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

Handle recursive restrict in function parameter

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

Use decl_type in create_variable_info_for_1

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

* gnat.dg/slice9.adb: New test.

From-SVN: r229735

gotest: fix handling of --goarch option

    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

Daily bump.

From-SVN: r229731

remove usage of ROUND_TYPE_SIZE from encoding.c

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

remove unused config/arm/coff.h

gcc/ChangeLog:

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

* config/arm/coff.h: Remove.

From-SVN: r229726

Handle auto parameter packs.

* 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.

* 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.

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

From-SVN: r229718

re PR c/67882 (surprising offsetof result on an invalid array member without diagnostic)

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

re PR fortran/67982 (Incorrect -Wunused-function warning)

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

Remove superfluous gcc/ prefixes

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

* libsupc++/new: Declare sized deletes.

From-SVN: r229713

tree-vect-data-refs.c (vect_analyze_data_refs): Do not collect data references here.

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

mksysinfo.sh: Make sure that CLONE_NEWUSER is defined.

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

From-SVN: r229711

2015-11-03  Paolo Carlini  <paolo.carlini@oracle.com>

* Wrap ChangeLog entries to 80 columns.

From-SVN: r229707

multiple_target.c (create_dispatcher_calls): Add target check on ifunc.

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

OpenACC atomic directive

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

[AARCH64][PATCH 1/3] Implementing the variants of the vmulx_ NEON intrinsic

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

[AArch64] Fix ICE on (const_double:HF 0.0)

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.

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

From-SVN: r229700

Make the default constructors of tuple and pair conditionally explicit.

2015-11-03  Ville Voutilainen  <ville.voutilainen@gmail.com>

Make the default constructors of tuple and pair conditionally explicit.
* include/std/type_traits (is_unsigned, __is_array_unknown_bounds,
__is_default_constructible_atom, __is_default_constructible_safe,
__is_direct_constructible_new_safe, __is_direct_constructible_ref_cast,
__is_nt_default_constructible_impl, is_nothrow_default_constructible,
is_nothrow_constructible, is_nothrow_assignable,
is_trivially_constructible, is_trivially_copy_constructible,
is_trivially_move_constructible, is_trivially_assignable,
is_trivially_copy_assignable, is_trivially_move_assignable,
is_trivially_destructible): Simplify.
* include/std/type_traits (
__do_is_implicitly_default_constructible_impl,
__is_implicitly_default_constructible_impl,
__is_implicitly_default_constructible_safe,
__is_implicitly_default_constructible): New.
* include/bits/stl_pair.h (pair::pair()): Use it.
* include/std/tuple (tuple<_T1, _T2>::tuple): Use it.
* include/std/tuple (_ImplicitlyDefaultConstructibleTuple): New.
* include/std/tuple (tuple<_Types...>::tuple()): Use it.
* testsuite/20_util/declval/requirements/1_neg.cc: Adjust.
* testsuite/20_util/is_implicitly_default_constructible/requirements/explicit_instantiation.cc: New.
* testsuite/20_util/is_implicitly_default_constructible/requirements/typedefs.cc: Likewise.
* testsuite/20_util/is_implicitly_default_constructible/value.cc: Likewise.
* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust.
* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Likewise.
* testsuite/20_util/pair/cons/explicit_construct.cc: Likewise.
* testsuite/20_util/tuple/cons/explicit_construct.cc: Likewise.

From-SVN: r229699

mvc1.c: Move to ...

* gcc.dg/mvc1.c: Move to ...
* gcc.target/i386/mvc1.c: ... here.  Require ifunc.
* gcc.dg/mvc2.c: Move to ...
* gcc.target/i386/mvc2.c: ... here.
* gcc.dg/mvc3.c: Move to ...
* gcc.target/i386/mvc3.c: ... here.
* gcc.dg/mvc4.c: Move to ...
* gcc.target/i386/mvc4.c: ... here.  Require ifunc.
* gcc.dg/mvc5.c: Move to ...
* gcc.target/i386/mvc5.c: ... here.
* gcc.dg/mvc6.c: Move to ...
* gcc.target/i386/mvc6.c: ... here.
* gcc.dg/mvc7.c: Move to ...
* gcc.target/i386/mvc7.c: ... here.

* g++.dg/ext/mvc1.C: Require ifunc.

From-SVN: r229697

defer mark_addressable calls during expand till the end of expand

for  gcc/ChangeLog

* gimple-expr.c: Include hash-set.h and rtl.h.
(mark_addressable_queue): New var.
(mark_addressable): Factor actual marking into...
(mark_addressable_1): ... this.  Queue it up during expand.
(mark_addressable_2): New.
(flush_mark_addressable_queue): New.
* gimple-expr.h (flush_mark_addressable_queue): Declare.
* cfgexpand.c: Include gimple-expr.h.
(pass_expand::execute): Flush mark_addressable queue.

From-SVN: r229696

Remove ChangeLog entry unintentionally duplicated in the top level

From-SVN: r229695

ifcombine: factor out inner block viability test

Bail out early if the inner block has side effects or is otherwise not
eligible for ifcombine.

for  gcc/ChangeLog

* tree-ssa-ifcombine.c (tree_ssa_ifcombine_bb_1): Factor out
bb_no_side_effects_p tests...
(tree_ssa_ifcombine_bb): ... here.

From-SVN: r229691

[PR68083] don't introduce undefined behavior in ifcombine

The ifcombine pass may move a conditional access to an uninitialized
value before the condition that ensures it is always well-defined,
thus introducing undefined behavior.  Stop it from doing so.

for  gcc/ChangeLog

PR tree-optimization/68083
* tree-ssa-ifcombine.c: Include tree-ssa.h.
(bb_no_side_effects_p): Test for undefined uses too.
* tree-ssa.c (gimple_uses_undefined_value_p): New.
* tree-ssa.h (gimple_uses_undefined_value_p): Declare.

for  gcc/testsuite/ChangeLog

PR tree-optimization/68083
* gcc.dg/torture/pr68083.c: New.  From Zhendong Su.

From-SVN: r229690

Daily bump.

From-SVN: r229689

libgo: Bump version number.

    Reviewed-on: https://go-review.googlesource.com/16583

From-SVN: r229686

[PATCH] Avoid more irreducible loops in FSM threader

* tree-ssa-threadupdate.c (valid_jump_thread_path): Also detect
cases where the loop latch edge is in the middle of an FSM
path.

* gcc.dg/tree-ssa/ssa-thread-11.c: Verify that we do not have
irreducible loops in the CFG.

From-SVN: r229685

Rename make_restrict_var_constraints to make_param_constraints

2015-11-03  Tom de Vries  <tom@codesourcery.com>

* tree-ssa-structalias.c (make_restrict_var_constraints): Rename to ...
(make_param_constraints): ... this.  Add and handle restrict_name
parameter.  Handle is_full_var case.
(intra_create_variable_infos): Use make_param_constraints.

From-SVN: r229684

Replace make_copy_constraint with make_constraint_from in make_restrict_var_constraints

2015-11-03  Tom de Vries  <tom@codesourcery.com>

* tree-ssa-structalias.c (make_restrict_var_constraints): Replace
make_copy_constraint call with make_constraint_from call.

From-SVN: r229683

freebsd64.h (ASM_SPEC32): Adust spec to handle PIE executables.

2015-11-02  Andreas Tobler  <andreast@gcc.gnu.org>

    * config/rs6000/freebsd64.h (ASM_SPEC32): Adust spec to handle
    PIE executables.

From-SVN: r229680

mksysinfo.sh: Handle TIOCGPGRP if too complex for -dump-go-spec.

    Reviewed-on: https://go-review.googlesource.com/16580

From-SVN: r229676

syscall: Change raw_ioctl cmd type to uintptr.

    Attempt to fix a build bug report:

    ../../../../libgo/go/syscall/exec_linux.go:185:37: error: integer constant overflow
       _, err1 = raw_ioctl_ptr(sys.Ctty, TIOCSPGRP, unsafe.Pointer(&pgrp))

    Reviewed-on: https://go-review.googlesource.com/16539

From-SVN: r229674

libcpp: Improvements to description of source_location in line-map.h

libcpp/ChangeLog:
* include/line-map.h (source_location): In the table in the
descriptive comment, show UNKNOWN_LOCATION, BUILTINS_LOCATION,
LINE_MAP_MAX_LOCATION_WITH_COLS, LINE_MAP_MAX_SOURCE_LOCATION.
Add notes about ad-hoc values.

From-SVN: r229673

Move constant folds for maths functions to new file

The new routines operate on the built-in enum rather than on tree decls.
The idea is to extend this to handle internal functions too, with a
combined enum for both.

The patch also moves fold_fma too, with the same prototype.  The long-term
plan is to replace FMA_EXPR with an internal function, for consistency
with the way that things like SQRT will be handled.

Tested on x86_64-linux-gnu, arm-linux-gnueabi and aarch64-linux-gnu.

gcc/
* builtins.h (fold_fma): Move to fold-const-call.h.
* builtins.c: Include fold-const-call.h.
(mathfn_built_in_2): New function, split out from...
(mathfn_built_in_1): ...here.
(do_real_to_int_conversion, fold_const_builtin_pow)
(fold_const_builtin_logb, fold_const_builtin_significand)
(fold_const_builtin_load_exponent, do_mpfr_arg1, do_mpfr_arg2)
(do_mpfr_arg3, do_mpfr_sincos, do_mpfr_bessel_n, do_mpc_arg1): Delete.
(fold_builtin_sincos): Use fold_const_call to handle constants.
(fold_builtin_1, fold_builtin_2, fold_builtin_3): Add explicit
checks for ERROR_MARK.  Use fold_const_call to handle constant
folds for math functions.
(fold_fma): Move to fold-const-call.c.
* fold-const.c: Include fold-const-call.h.
* Makefile.in (OBJS): Add fold-const-call.o.
(PLUGIN_HEADERS): Add fold-const-call.h.
* realmpfr.h (real_from_mpfr): Allow the format to be specified
directly.
* realmpfr.c (real_from_mpfr): Likewise.
* fold-const-call.h, fold-const-call.c: New files.

From-SVN: r229669

[ARM] neon-testgen.ml typo

* config/arm/neon-testgen.ml (emit_epilogue): Remove extraneous
brackets and semicolon.

From-SVN: r229662

Revert: tree-scalar-evolution.c: Handle LSHIFT by constant

gcc/:

tree-scalar-evolution.c (interpret_rhs_expr): Handle some
LSHIFT_EXPRs as equivalent MULT_EXPRs.

gcc/testsuite/:

gcc.dg/vect/vect-strided-shift.c: New.

From-SVN: r229660

Move gcc.target/arm/pr67929_1.c test to execute.exp

PR target/67929
* gcc.target/arm/pr67929_1.c: Move to...
* gcc.c-torture/execute/pr67929_1.c: ... Here.
Remove arm-specific directives.  Add noclone, noinline
attributes.

From-SVN: r229657

[PR middle-end/68166] Restore build with fold checking enabled

gcc/
PR middle-end/68166
* fold-const.c: Include "md5.h".

From-SVN: r229652

[PATCH] Avoid ssa-thread-11.c on various targets

* gcc.dg/tree-ssa/ssa-thread-11.c: Update target selector.

From-SVN: r229651

[PATCH] Fix vms targets

* vmsdbgout.c: Revert unused header file reduction patch.

From-SVN: r229650

* config/mcore/mcore.c: Include regs.h.

From-SVN: r229649

Daily bump.

From-SVN: r229648

mksysinfo.sh: Handle TIOCSPGRP if too complex for -fdump-go-spec.

    Reviewed-on: https://go-review.googlesource.com/16534

From-SVN: r229645

re PR go/67968 (go1: internal compiler error: in write_specific_type_functions, at go/gofrontend/types.cc:1812)

PR go/67968
    compiler: Traverse types of call expressions.

    https://gcc.gnu.org/PR67968 provides a test case that causes a gccgo
    crash on valid code.  The compiler failed to build the hash and equality
    functions required for a type descriptor.  The descriptor is for an
    unnamed type that is being returned by a function imported from a
    different package.  The unnamed type is being implicitly converted to an
    interface type by a return statement.  The fix is to ensure that the
    type of a call expression is always traversed.

    Test case sent out for the master testsuite as
    https://golang.org/cl/16532 .

From-SVN: r229642

pr67609-2.c: Include sse2-check.h.

* gcc.target/i386/pr67609-2.c: Include sse2-check.h.
(sse2_test): Rename from main.  Do not return 0.

From-SVN: r229641

pr46756.f: Remove XFAIL for AIX.

        * gfortran.dg/debug/pr46756.f: Remove XFAIL for AIX.
        * gfortran.dg/proc_ptr_39.f90: Require visibility.
        * gfortran.dg/read_dir.f90: XFAIL AIX.

From-SVN: r229640

Daily bump.

From-SVN: r229639

runtime: If no split stacks, allocate stacks using mmap on 64-bit systems.

    When not using split stacks, libgo allocate large stacks for each
    goroutine.  On a 64-bit system, libgo allocates a maximum of 128G for
    the Go heap, and allocates 4M for each stack.  When the stacks are
    allocated from the Go heap, the result is that a program can only create
    32K goroutines, which is not enough for an active Go server.  This patch
    changes libgo to allocate the stacks using mmap directly, rather than
    allocating them out of the Go heap.  This change is only done for 64-bit
    systems when not using split stacks.  When using split stacks, the
    stacks are allocated using mmap directly anyhow.  On a 32-bit system,
    there is no maximum size for the Go heap, or, rather, the maximum size
    is the available address space anyhow.

    Reviewed-on: https://go-review.googlesource.com/16531

From-SVN: r229636

Makefile.am (go_cmd_go_files): Update to Go 1.5.1 library by adding alldocs.go, doc.go, note.go.

* Makefile.am (go_cmd_go_files): Update to Go 1.5.1 library by
adding alldocs.go, doc.go, note.go.
* Makefile.in: Rebuild.

From-SVN: r229635

rs6000: Rewrite rs6000_reg_live_or_pic_offset_p

This function is quite a puzzle; untangle it.  No functional change.

2015-10-31  Segher Boessenkool  <segher@kernel.crashing.org>

* config/rs6000/rs6000.c (rs6000_reg_live_or_pic_offset_p): Rewrite.

From-SVN: r229634

rs6000: Another PIC LRA fix

This one for TARGET_TOC && TARGET_MINIMAL_TOC.  Without it, r30 is not
saved in the prologue for functions that do not use r30, but the register
is set later in the prologue anyhow.  This made all java tests fail.

2015-10-31  Segher Boessenkool  <segher@kernel.crashing.org>

* config/rs6000/rs6000.c (rs6000_reg_live_or_pic_offset_p): Use the
same condition for testing whether RS6000_PIC_OFFSET_TABLE_REGNUM is
live as for using it elsewhere, for TARGET_MINIMAL_TOC.

From-SVN: r229633

Remove support for N3994, terse range-for, which was not adopted.

/cp
2015-10-31  Ville Voutilainen  <ville.voutilainen@gmail.com>

Remove the implementation of N3994, terse range-for loops.
* parser.c (cp_parser_for_init_statement): Remove the parsing
of a terse range-for.

/testsuite
2015-10-31  Ville Voutilainen  <ville.voutilainen@gmail.com>

Remove the implementation of N3994, terse range-for loops.
* g++.dg/cpp1z/range-for1.C: Remove.

From-SVN: r229632

re PR bootstrap/68168 (r229609 breaks bootstrap)

PR Bootstrap/68168

gcc/fortran/
* openmp.c (resolve_omp_clauses): Pass &n->where when calling
gfc_error.

From-SVN: r229631

* gnat.dg/discr45.adb: New test.

From-SVN: r229630

Implement multiple 'auto' feature from Concepts TS.

* parser.c (cp_parser_type_id_1): Allow 'auto' if -fconcepts.
(cp_parser_template_type_arg): Likewise.
(get_concept_from_constraint): Split out most logic to...
* constraint.cc (placeholder_extract_concept_and_args): ...here.
(equivalent_placeholder_constraints, hash_placeholder_constraint): New.
* cxx-pretty-print.c (pp_cxx_constrained_type_spec): New.
* cxx-pretty-print.h: Declare it.
* error.c (dump_type) [TEMPLATE_TYPE_PARM]: Call it.
* pt.c (is_auto_r, extract_autos_r, extract_autos, auto_hash): New.
(type_uses_auto): Use is_auto_r.
(do_auto_deduction): Handle multiple 'auto's if -fconcepts.
* typeck.c (structural_comptypes) [TEMPLATE_TYPE_PARM]: Compare
constraints.

From-SVN: r229629

Streamline for_each_template_parm.

* pt.c (for_each_template_parm_r): Use WALK_SUBTREE.
Return a meaningful value rather than error_mark_node.
(for_each_template_parm): Return a tree.
(uses_template_parms_level): Return bool.
* cp-tree.h: Adjust.

From-SVN: r229628

Improve deduction failure diagnostics.

* pt.c (unify): Don't diagnose no common base if we already have
the same template.
(do_auto_deduction): Explain deduction failure.

From-SVN: r229627

pt.c (hash_tmpl_and_args): Use iterative_hash_object on template uid.

* pt.c (hash_tmpl_and_args): Use iterative_hash_object on template
uid.

From-SVN: r229626

Make some functions static.

* parser.c (synthesize_implicit_template_parm)
(finish_fully_implicit_template): Make static.

From-SVN: r229625

libgo: Update from Go 1.5 to Go 1.5.1.

    Reviewed-on: https://go-review.googlesource.com/16527

From-SVN: r229624

ggc-common.c : Restore needed header for checking=release.

       *ggc-common.c : Restore needed header for checking=release.

From-SVN: r229623

Tune pointer-plus folding

2015-10-31  Tom de Vries  <tom@codesourcery.com>

* fold-const.c (fold_unary_loc): Tune POINTER_PLUS_EXPR folding.

* gfortran.dg/assumed_type_2.f90: Update test.
* gfortran.dg/no_arg_check_2.f90: Same.

From-SVN: r229621

Don't expect existing varinfo for arguments in intra_create_variable_infos

2015-10-31  Tom de Vries  <tom@codesourcery.com>

* tree-ssa-structalias.c (intra_create_variable_infos): Don't expect
existing varinfo for arguments.

From-SVN: r229620

Add initial constraints in create_function_info_for

2015-10-31  Tom de Vries  <tom@codesourcery.com>

* tree-ssa-structalias.c (ipa_pta_execute): Add extra arg to call to
create_function_info_for.  Dump constraints generated during
create_function_info_for. Move intra_create_variable_infos call and
function-return-values-escape bit to ...
(create_function_info_for): ... here, and merge
intra_create_variable_infos call with argument loop.  Add and handle
nonlocal_p parameter.

From-SVN: r229619

Improve readability and structure of create_function_info_for

2015-10-31  Tom de Vries  <tom@codesourcery.com>

* tree-ssa-structalias.c (create_function_info_for): Make sure prev_vi
updating is alap, and seperated from preceding code.  Make sure
insert_vi_for_tree is seperated from surrounding code.

From-SVN: r229618

Use make_copy_constraint in ipa_pta_execute

2015-10-31  Tom de Vries  <tom@codesourcery.com>

* tree-ssa-structalias.c (ipa_pta_execute): Use make_copy_constraint.

From-SVN: r229617

runtime: Remove now unnecessary pad field from ParFor.

    It is not needed due to the removal of the ctx field.

    Reviewed-on: https://go-review.googlesource.com/16525

From-SVN: r229616

Daily bump.

From-SVN: r229615

compiler: Create pointer type for all types with methods.

    Reviewed-on: https://go-review.googlesource.com/16522

From-SVN: r229612

* config-list.mk (nvptx-none): Add it.

From-SVN: r229611

nvptx.h (HARD_REGNO_NREGS): Avoid warning on unused args.

* config/nvptx/nvptx.h (HARD_REGNO_NREGS): Avoid warning on unused
args.
(MOVE_MAX): Set to 8.

Co-Authored-By: Nathan Sidwell <nathan@acm.org>
From-SVN: r229610

gfortran.h (gfc_omp_namespace): Add locus where member.

gcc/fortran/
* gfortran.h (gfc_omp_namespace): Add locus where member.
* openmp.c (gfc_match_omp_variable_list): Set where for each list
item found.
(resolve_omp_clauses): Remove where argument and use the where
gfc_omp_namespace member when reporting errors.
(resolve_omp_do):  Update call to resolve_omp_clauses.
(resolve_oacc_loop): Likewise.
(gfc_resolve_oacc_directive): Likewise.
(gfc_resolve_omp_directive): Likewise.
(gfc_resolve_omp_declare_simd): Likewise.

gcc/testsuite/
* gfortran.dg/gomp/intentin1.f90: Adjust copyprivate warning.

From-SVN: r229609

cgraph.c: Include context.h for offloading.

gcc/
* cgraph.c: Include context.h for offloading.
* varpool.c: Include context.h and omp-low.h.

From-SVN: r229608

Add contains_symbol_ref_p

From-SVN: r229607

re PR fortran/46588 (ICE with assumed character length function)

2015-10-30  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/46588
* gfortran.dg/pr46588.f90: New test.

From-SVN: r229606

Share code from fold_array_ctor_reference with fold.

        * gimple-fold.c (fold_array_ctor_reference): Move searching code to:
        * fold-const.c (get_array_ctor_element_at_index): New.
        (fold): Remove binary-search through CONSTRUCTOR, call previous.

        * fold-const.h (get_array_ctor_element_at_index): New.

From-SVN: r229605

Makefile.in (OBJS): Add multiple_target.o.

2015-10-30  Evgeny Stupachenko  <evstupac@gmail.com>

gcc/
* Makefile.in (OBJS): Add multiple_target.o.
* attrib.c (make_attribute): Moved from config/i386/i386.c
* config/i386/i386.c (make_attribute): Deleted.
* multiple_target.c (create_dispatcher_calls): New.
(get_attr_len): Ditto.
(get_attr_str): Ditto.
(separate_attrs): Ditto.
(is_valid_asm_symbol): Ditto.
(create_new_asm_name): Ditto.
(create_target_clone): Ditto.
(expand_target_clones): Ditto.
(ipa_target_clone): Ditto.
(ipa_dispatcher_calls): Ditto.
* passes.def (pass_target_clone): Two new ipa passes.
* tree-pass.h (make_pass_target_clone): Ditto.
* doc/extend.texi (target_clones): New attribute description.
gcc/c-family/
* c-common.c (handle_target_clones_attribute): New.
(c_common_attribute_table): Add handle_target_clones_attribute.
(handle_always_inline_attribute): Add check on target_clones attribute.
(handle_target_attribute): Ditto.
gcc/testsuite/
* gcc.dg/mvc1.c: New test for multiple targets cloning.
* gcc.dg/mvc2.c: Ditto.
* gcc.dg/mvc3.c: Ditto.
* gcc.dg/mvc4.c: Ditto.
* gcc.dg/mvc5.c: Ditto.
* gcc.dg/mvc6.c: Ditto.
* gcc.dg/mvc7.c: Ditto.
* g++.dg/ext/mvc1.C: Ditto.
* g++.dg/ext/mvc2.C: Ditto.
* g++.dg/ext/mvc3.C: Ditto.
* g++.dg/ext/mvc4.C: Ditto.

From-SVN: r229595

re PR fortran/51993 (Erroneous type component initialization leads to internal compiler error)

2015-10-15  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/51993
* decl.c (gfc_set_constant_character_len): Convert gcc_assert into an
if-statement causing an early return leads to valid error message.

2015-10-15  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/51993
* gfortran.dg/pr51993.f90: New test.

From-SVN: r229594

re PR rtl-optimization/68106 (c-c++-common/torture/builtin-arith-overflow-11.c FAILs with -flra-remat @ aarch64)

2015-10-30  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/68106
* lra-remat.c (input_regno_present_p): Process hard regs
explicitly present in machine description insns.
(call_used_input_regno_present_p): Ditto.
(calculate_gen_cands): Ditto.
(do_remat): Ditto.

2015-10-30  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/68106
* gcc.target/aarch64/pr68106.c: New.

From-SVN: r229593