[3/4] ARMv8.2-A testsuite for new vector intrinsics

gcc/testsuite/

* gcc.target/aarch64/advsimd-intrinsics/vdiv_f16_1.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vfmas_lane_f16_1.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vfmas_n_f16_1.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vmaxnmv_f16_1.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vmaxv_f16_1.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vminnmv_f16_1.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vminv_f16_1.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vmul_lane_f16_1.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vmulx_f16_1.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vmulx_lane_f16_1.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vmulx_n_f16_1.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vpminmaxnm_f16_1.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vrndi_f16_1.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vsqrt_f16_1.c: New.

From-SVN: r240923

[2/4] ARMv8.2-A testsuite for new data movement intrinsics

gcc/testsuite/

* gcc.target/aarch64/advsimd-intrinsics/arm-neon-ref.h (FP16_SUPPORTED):
Enable AArch64.
* gcc.target/aarch64/advsimd-intrinsics/vdup_lane.c: Add support for
vdup*_laneq.
* gcc.target/aarch64/advsimd-intrinsics/vduph_lane.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vtrn_half.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vuzp_half.c: New.
* gcc.target/aarch64/advsimd-intrinsics/vzip_half.c: New.

From-SVN: r240922

[1/4] ARMv8.2-A FP16 testsuite selector

gcc/testsuite/

* target-supports.exp (add_options_for_arm_v8_2a_fp16_scalar): Mention
AArch64 support.
(add_options_for_arm_v8_2a_fp16_neon): Likewise.
(check_effective_target_arm_v8_2a_fp16_scalar_ok_nocache): Support
AArch64 targets.
(check_effective_target_arm_v8_2a_fp16_neon_ok_nocache): Support
AArch64 targets.
(check_effective_target_arm_v8_2a_fp16_scalar_hw): Support AArch64
targets.
(check_effective_target_arm_v8_2a_fp16_neon_hw): Likewise.

From-SVN: r240921

Define std::allocator<T>::is_always_equal

* include/bits/allocator.h (allocator<T>::is_always_equal): Define.
* testsuite/20_util/allocator/requirements/typedefs.cc: Test for
is_always_equal.
* testsuite/util/testsuite_allocator.h
(uneq_allocator::is_always_equal): Define as false_type.

From-SVN: r240920

LWG 2733, LWG 2759 reject bool in gcd and lcm

* include/experimental/numeric (gcd, lcm): Make bool arguments
ill-formed.
* include/std/numeric (gcd, lcm): Likewise.
* testsuite/26_numerics/gcd/gcd_neg.cc: New test.
* testsuite/26_numerics/lcm/lcm_neg.cc: New test.

From-SVN: r240919

re PR target/77738 (Invalid initialisation of ar.lc register)

PR target/77738
* config/ia64/ia64.md ("doloop_end"): Reject if mode of loop
pseudo is not DImode.

From-SVN: r240918

Add noexcept to enable_shared_from_this::weak_from_this

* include/bits/shared_ptr.h (enable_shared_from_this::weak_from_this):
Add noexcept.
* include/bits/shared_ptr_base.h
(__enable_shared_from_this::weak_from_this): Likewise.
* testsuite/20_util/enable_shared_from_this/members/weak_from_this.cc:
Test exception-specification of weak_from_this.

From-SVN: r240917

[ARC] Disable compact casesi patterns for arcv2

gcc/
2016-05-09  Claudiu Zissulescu  <claziss@synopsys.com>

* common/config/arc/arc-common.c (arc_option_optimization_table):
Remove compact casesi option.
* config/arc/arc.c (arc_override_options): Use compact casesi
option only for pre-ARCv2 cores.
* doc/invoke.texi (mcompact-casesi): Update text.

From-SVN: r240916

decl.c (gnat_to_gnu_entity): Put volatile qualifier on types at the very end of the processing.

* gcc-interface/decl.c (gnat_to_gnu_entity): Put volatile qualifier
on types at the very end of the processing.
(gnat_to_gnu_param): Remove redundant test.
(change_qualified_type): Do nothing for unconstrained array types.

From-SVN: r240915

utils2.c (find_common_type): Do not return the LHS type if it's an array with non-constant lower bound and...

* gcc-interface/utils2.c (find_common_type): Do not return the LHS type
if it's an array with non-constant lower bound and the RHS type is an
array with a constant one.

From-SVN: r240913

utils.c (convert): For a biased input type, convert the bias itself to the base type before adding it.

* gcc-interface/utils.c (convert): For a biased input type, convert
the bias itself to the base type before adding it.

From-SVN: r240910

* config-lang.in (lang_requires_boot_languages): Delete.

From-SVN: r240909

rs6000.h (TARGET_EFFICIENT_OVERLAPPING_UNALIGNED): Add macro to say we can efficiently handle overlapping unaligned loads.

2016-10-09  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

* config/rs6000/rs6000.h (TARGET_EFFICIENT_OVERLAPPING_UNALIGNED):
Add macro to say we can efficiently handle overlapping unaligned
loads.
* config/rs6000/rs6000.c (expand_block_compare): Avoid generating
poor code for processors older than p8.

From-SVN: r240908

Daily bump.

From-SVN: r240907

* gen-pass-instances.awk: Remove GNUism.

From-SVN: r240904

ipa-prop.c (ipcp_transform_function): Set fields m_vr and bits to NULL of (*ipcp_transformations)][node->uid].

2016-10-09  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

* ipa-prop.c (ipcp_transform_function): Set fields m_vr and bits to NULL of
(*ipcp_transformations)][node->uid].

From-SVN: r240903

PR 67585 Handle EINTR

Many POSIX systems have the bad habit of not restarting interrupted
syscalls. On these systems it's up to the user to check for an error
with errno == EINTR and restart manually. This patch does this for
libgfortran, so that GFortran users don't have to do it.

2016-10-09  Janne Blomqvist  <jb@gcc.gnu.org>

        PR libfortran/67585
        * io/io.h: TEMP_FAILURE_RETRY: Define macro if not found.
        * io/unix.c (raw_read): Handle EINTR.
        (raw_write): Check for return value -1.
        (raw_seek): Handle EINTR.
        (raw_tell): Likewise.
        (raw_size): Likewise.
        (raw_truncate): Likewise.
        (raw_close): Likewise.
        (buf_flush): Call raw_seek instead of lseek.
        (buf_read): Likewise.
        (buf_write): Likewise.
        (fd_to_stream): Handle EINTR.
        (tempfile_open): Likewise.
        (regular_file2): Likewise.
        (compare_file_filename): Likewise.
        (find_file): Likewise.
        (inquire_sequential): Likewise.
        (inquire_direct): Likewise.
        (inquire_formatted): Likewise.

From-SVN: r240902

pa.h (BIGGEST_ALIGNMENT): Adjust comment.

* config/pa/pa.h (BIGGEST_ALIGNMENT): Adjust comment.
(MALLOC_ABI_ALIGNMENT): Define.

From-SVN: r240901

tree-ssa.c (target_for_debug_bind, [...]): Use VAR_P and/or VAR_OR_FUNCTION_DECL_P macros.

* tree-ssa.c (target_for_debug_bind, verify_phi_args,
ssa_undefined_value_p, maybe_optimize_var): Use VAR_P and/or
VAR_OR_FUNCTION_DECL_P macros.
* tree-chkp.c (chkp_register_var_initializer, chkp_make_static_bounds,
chkp_get_bounds_for_decl_addr, chkp_parse_array_and_component_ref,
chkp_find_bounds_1): Likewise.
* ipa-polymorphic-call.c (decl_maybe_in_construction_p): Likewise.
* hsa-gen.c (get_symbol_for_decl): Likewise.
* cgraphunit.c (check_global_declaration, analyze_functions,
handle_alias_pairs, thunk_adjust, cgraph_node::expand_thunk):
Likewise.
* gimple-fold.c (can_refer_decl_in_current_unit_p,
canonicalize_constructor_val, gimple_get_virt_method_for_vtable):
Likewise.
* tree.c (set_decl_section_name, copy_node_stat,
need_assembler_name_p, free_lang_data_in_decl, find_decls_types_r,
merge_dllimport_decl_attributes, handle_dll_attribute,
decl_init_priority_insert, auto_var_in_fn_p, array_at_struct_end_p,
verify_type): Likewise.
* gimple-ssa-isolate-paths.c (find_implicit_erroneous_behavior,
find_explicit_erroneous_behavior): Likewise.
* sdbout.c (sdbout_toplevel_data, sdbout_late_global_decl): Likewise.
* ipa.c (process_references): Likewise.
* tree-chkp-opt.c (chkp_get_check_result): Likewise.
* varasm.c (get_block_for_decl, use_blocks_for_decl_p, make_decl_rtl,
notice_global_symbol, assemble_variable, mark_decl_referenced,
build_constant_desc, output_constant_def_contents, do_assemble_alias,
make_decl_one_only, default_section_type_flags,
categorize_decl_for_section, default_encode_section_info): Likewise.
* trans-mem.c (requires_barrier): Likewise.
* gimple-expr.c (mark_addressable): Likewise.
* cfgexpand.c (add_scope_conflicts_1, expand_one_var,
expand_used_vars_for_block, clear_tree_used, stack_protect_decl_p,
expand_debug_expr): Likewise.
* tree-dump.c (dequeue_and_dump): Likewise.
* ubsan.c (instrument_bool_enum_load): Likewise.
* tree-pretty-print.c (print_declaration): Likewise.
* simplify-rtx.c (delegitimize_mem_from_attrs): Likewise.
* tree-ssa-uninit.c (warn_uninitialized_vars): Likewise.
* asan.c (asan_protect_global, instrument_derefs): Likewise.
* tree-into-ssa.c (rewrite_stmt, maybe_register_def,
pass_build_ssa::execute): Likewise.
* var-tracking.c (var_debug_decl, track_expr_p): Likewise.
* tree-ssa-loop-ivopts.c (force_expr_to_var_cost, split_address_cost):
Likewise.
* ipa-split.c (test_nonssa_use, consider_split, mark_nonssa_use):
Likewise.
* tree-inline.c (insert_debug_decl_map, remap_ssa_name,
can_be_nonlocal, remap_decls, copy_debug_stmt,
initialize_inlined_parameters, add_local_variables,
reset_debug_binding, replace_locals_op): Likewise.
* dse.c (can_escape): Likewise.
* ipa-devirt.c (compare_virtual_tables, referenced_from_vtable_p):
Likewise.
* tree-diagnostic.c (default_tree_printer): Likewise.
* tree-streamer-in.c (unpack_ts_decl_common_value_fields,
unpack_ts_decl_with_vis_value_fields,
lto_input_ts_decl_common_tree_pointers): Likewise.
* builtins.c (builtin_save_expr, fold_builtin_expect,
readonly_data_expr): Likewise.
* tree-ssa-structalias.c (new_var_info, get_constraint_for_ssa_var,
create_variable_info_for, set_uids_in_ptset, visit_loadstore):
Likewise.
* gimple-streamer-out.c (output_gimple_stmt): Likewise.
* gimplify.c (force_constant_size, gimplify_bind_expr,
gimplify_decl_expr, gimplify_var_or_parm_decl,
gimplify_compound_lval, gimplify_init_constructor,
gimplify_modify_expr, gimplify_asm_expr, gimplify_oacc_declare,
gimplify_type_sizes): Likewise.
* cgraphbuild.c (record_reference, record_type_list, mark_address,
mark_load, mark_store, pass_build_cgraph_edges::execute): Likewise.
* tree-ssa-live.c (mark_all_vars_used_1, remove_unused_scope_block_p,
remove_unused_locals): Likewise.
* tree-ssa-alias.c (ptr_deref_may_alias_decl_p, ptrs_compare_unequal,
ref_maybe_used_by_call_p_1, call_may_clobber_ref_p_1): Likewise.
* function.c (instantiate_expr, instantiate_decls_1,
setjmp_vars_warning, add_local_decl): Likewise.
* alias.c (ao_ref_from_mem, get_alias_set, compare_base_symbol_refs):
Likewise.
* tree-stdarg.c (find_va_list_reference, va_list_counter_struct_op,
va_list_ptr_read, va_list_ptr_write, check_all_va_list_escapes,
optimize_va_list_gpr_fpr_size): Likewise.
* tree-nrv.c (pass_nrv::execute): Likewise.
* tsan.c (instrument_expr): Likewise.
* tree-ssa-dce.c (remove_dead_stmt): Likewise.
* vtable-verify.c (verify_bb_vtables): Likewise.
* tree-dfa.c (ssa_default_def, set_ssa_default_def,
get_ref_base_and_extent): Likewise.
* toplev.c (wrapup_global_declaration_1, wrapup_global_declaration_2):
Likewise.
* tree-sra.c (static bool constant_decl_p, find_var_candidates,
analyze_all_variable_accesses): Likewise.
* tree-nested.c (get_nonlocal_debug_decl,
convert_nonlocal_omp_clauses, note_nonlocal_vla_type,
note_nonlocal_block_vlas, convert_nonlocal_reference_stmt,
get_local_debug_decl, convert_local_omp_clauses,
convert_local_reference_stmt, nesting_copy_decl, remap_vla_decls):
Likewise.
* tree-vect-data-refs.c (vect_can_force_dr_alignment_p): Likewise.
* stmt.c (decl_overlaps_hard_reg_set_p): Likewise.
* dbxout.c (dbxout_late_global_decl, dbxout_type_fields,
dbxout_symbol, dbxout_common_check): Likewise.
* expr.c (expand_assignment, expand_expr_real_2, expand_expr_real_1,
string_constant): Likewise.
* hsa.c (hsa_get_declaration_name): Likewise.
* passes.c (rest_of_decl_compilation): Likewise.
* tree-ssanames.c (make_ssa_name_fn): Likewise.
* tree-streamer-out.c (pack_ts_decl_common_value_fields,
pack_ts_decl_with_vis_value_fields,
write_ts_decl_common_tree_pointers): Likewise.
* stor-layout.c (place_field): Likewise.
* symtab.c (symtab_node::maybe_create_reference,
symtab_node::verify_base, symtab_node::make_decl_local,
symtab_node::copy_visibility_from,
symtab_node::can_increase_alignment_p): Likewise.
* dwarf2out.c (add_var_loc_to_decl, tls_mem_loc_descriptor,
decl_by_reference_p, reference_to_unused, rtl_for_decl_location,
fortran_common, add_location_or_const_value_attribute,
add_scalar_info, add_linkage_name, set_block_abstract_flags,
local_function_static, gen_variable_die, dwarf2out_late_global_decl,
optimize_one_addr_into_implicit_ptr,
optimize_location_into_implicit_ptr): Likewise.
* gimple-low.c (record_vars_into): Likewise.
* ipa-visibility.c (update_vtable_references): Likewise.
* tree-ssa-address.c (fixed_address_object_p, copy_ref_info):
Likewise.
* lto-streamer-out.c (tree_is_indexable, get_symbol_initial_value,
DFS::DFS_write_tree_body, write_symbol): Likewise.
* langhooks.c (lhd_warn_unused_global_decl,
lhd_set_decl_assembler_name): Likewise.
* attribs.c (decl_attributes): Likewise.
* except.c (output_ttype): Likewise.
* varpool.c (varpool_node::get_create, ctor_for_folding,
varpool_node::assemble_decl, varpool_node::create_alias): Likewise.
* fold-const.c (fold_unary_loc): Likewise.
* ipa-prop.c (ipa_compute_jump_functions_for_edge,
ipa_find_agg_cst_from_init): Likewise.
* omp-low.c (expand_omp_regimplify_p, expand_omp_taskreg,
expand_omp_target, lower_omp_regimplify_p,
grid_reg_assignment_to_local_var_p, grid_remap_prebody_decls,
find_link_var_op): Likewise.
* tree-chrec.c (chrec_contains_symbols): Likewise.
* tree-cfg.c (verify_address, verify_expr, verify_expr_location_1,
gimple_duplicate_bb, move_stmt_op, replace_block_vars_by_duplicates,
execute_fixup_cfg): Likewise.

From-SVN: r240900

re PR tree-optimization/77901 (ICE in tree-sse-reassoc,c:2881)

PR tree-optimization/77901
* tree-ssa-reassoc.c (optimize_range_tests_var_bound): Only optimize
if ranges[i].exp is SSA_NAME when looking for >= and only when
ranges[i].exp is NULL or SSA_NAME when looking for the other
comparison.

* gcc.c-torture/compile/pr77901.c: New test.

From-SVN: r240899

ipa-cp.c (ipcp_alignment_lattice): Remove.

2016-10-09  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

* ipa-cp.c (ipcp_alignment_lattice): Remove.
(ipcp_param_lattices): Remove field alignment.
(print_all_lattices): Remove call to ipcp_alignment_lattice::print.
(set_all_contains_variable): Remove call to
ipcp_alignment_lattice::set_to_bottom.
(initialize_node_lattices): Likewise.
(propagate_alignment_accross_jump_function): Remove.
(propagate_constants_accross_call): Remove call to
propagate_alignment_accross_jump_function.
(ipcp_store_alignment_results): Remove.
(ipcp_driver): Remove call to ipcp_store_alignment_results.
(propagate_bits_accross_jump_function): Handle ancestor jump function.
* ipa-prop.c (ipa_print_node_jump_functions_for_edge): Remove
pretty-printing of alignment jump function.
(ipa_set_jf_unknown): Remove assignment to jfunc->alignment.known.
(ipa_compute_jump_functions_for_edge): Adjust ipa_bits jump function for
alignments and remove computing ipa_alignment jump function.
(ipa_node_params_t::duplicate): Remove copying of src_trans->alignments.
(ipa_write_jump_functions): Remove streaming for ipa_alignment.
(ipa_read_jump_function): Remove reading of ipa_alignment.
(write_ipcp_transformation_info): Remove streaming for alignment
propagation summary.
(read_ipcp_transformation_info): Remove reading of alignment
propagation summary.
(ipcp_update_alignments): Remove.
(ipcp_update_bits): Adjust to set alignment for parameters of pointer
type.
(ipcp_transform_function): Remove call to ipcp_update_alignments()
and remove assignment to (*ipcp_transformations)[node->uid].alignments.
* ipa-prop.h (ipa_alignment): Remove.
(ipa_jump_func): Remove field alignment.
(ipcp_transformation_summary): Remove field alignments.
* doc/invoke.texi: Mark fipa-cp-alignment as obsolete.
* opts.c (default_options_table): Remove entry for fipa-cp-alignment.
(enable_fdo_optimizations): Remove checking for fipa-cp-alignment.

testsuite/
* gcc.dg/ipa/propalign-1.c: Adjust scan-ipa-dump.
* gcc.dg/ipa/propalign-2.c: Likewise
* gcc.dg/ipa/propalign-3.c: Likewise.
* gcc.dg/ipa/propalign-4.c: Likewise.
* gcc.dg/ipa/propalign-5.c: Likewise.

From-SVN: r240898

* cp-gimplify.c (cp_fold): Add variable name.

From-SVN: r240897

Daily bump.

From-SVN: r240896

Delay folding of bool conversion into COND_EXPR.

gcc/c-family/
* c-common.c (c_common_truthvalue_conversion): Don't distribute
into COND_EXPR in C++.
gcc/cp/
* cp-gimplify.c (cp_fold): Distribute cp_truthvalue_conversion
into COND_EXPR.

From-SVN: r240893

sparc.h (FIXED_REGISTERS): Add %icc.

* config/sparc/sparc.h (FIXED_REGISTERS): Add %icc.

* config/visium/visium.c (visium_expand_int_cstore): Revert latest
change.
(visium_expand_fp_cstore): Likewise.

From-SVN: r240892

diagnostic-core.h (warning_at_rich_loc_n): Declare.

2016-10-08  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

* diagnostic-core.h (warning_at_rich_loc_n): Declare.
* diagnostic.c (warning_at_rich_loc_n): New function.
(diagnostic_n_impl_richloc): Likewise.
(diagnostic_n_impl): Move most of the function to
diagnostic_n_impl_richloc and call it.

From-SVN: r240891

utils.c (convert): Add missing break.

* gcc-interface/utils.c (convert) <VECTOR_CST>: Add missing break.

Revert
2016-09-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

* gcc-interface/decl.c: Fix fall through comment formatting.
* gcc-interface/misc.c: Likewise.
* gcc-interface/trans.c: Likewise.
* gcc-interface/utils.c: Likewise.
* gcc-interface/utils2.c: Likewise.

From-SVN: r240890

Further P0135 refinement.

* call.c (build_user_type_conversion_1): Consider conversions from
a single element in an initializer-list.
(build_temp): Undo early_elide_copy change.
(build_over_call): Check that we don't try to copy a TARGET_EXPR
in C++17 mode.  Set user_conv_p here.
(convert_like_real): Not here.
(check_self_delegation): Split out from...
(build_special_member_call): ...here.  Handle C++17 copy elision.
* cvt.c (early_elide_copy): Remove.
(ocp_convert): Undo early_elide_copy change.
* except.c (build_throw): Likewise.
* init.c (expand_default_init): Likewise.
* typeck.c (cp_build_modify_expr): Likewise.

From-SVN: r240889

gen-pass-instances.awk: Rewritten.

* gen-pass-instances.awk: Rewritten.
* Makefile.in (pass-instances.def): Depend on $(PASSES_EXTRA), pass
$(PASSES_EXTRA) after passes.def to the script.
* config/i386/t-i386 (PASSES_EXTRA): Add i386-passes.def.
* config/i386/i386-passes.def: New file.
* config/i386/i386-protos.h (make_pass_insert_vzeroupper,
make_pass_stv): Declare.
* config/i386/i386.c (pass_stv::pass_stv): Initialize timode_p to
false.
(pass_stv::gate): Depending on timode_p member require TARGET_64BIT
or !TARGET_64BIT.
(pass_stv::clone, pass_stv::set_pass_param): New methods.
(pass_stv::timode_p): New non-static data member.
(ix86_option_override): Don't register passes here.

From-SVN: r240888

gen-pass-instances.awk: Rewritten.

* gen-pass-instances.awk: Rewritten.
* Makefile.in (pass-instances.def): Depend on $(PASSES_EXTRA), pass
$(PASSES_EXTRA) after passes.def to the script.
* config/i386/t-i386 (PASSES_EXTRA): Add i386-passes.def.
* config/i386/i386-passes.def: New file.
* config/i386/i386-protos.h (make_pass_insert_vzeroupper,
make_pass_stv): Declare.
* config/i386/i386.c (pass_stv::pass_stv): Initialize timode_p to
false.
(pass_stv::gate): Depending on timode_p member require TARGET_64BIT
or !TARGET_64BIT.
(pass_stv::clone, pass_stv::set_pass_param): New methods.
(pass_stv::timode_p): New non-static data member.
(ix86_option_override): Don't register passes here.

From-SVN: r240887

invoke.texi: Document accepting Else, fallthrough.

* doc/invoke.texi: Document accepting Else, fallthrough.

* lex.c (fallthrough_comment_p): Accept Else, fallthrough.

* c-c++-common/Wimplicit-fallthrough-23.c (foo): Add further tests.

From-SVN: r240886

invoke.texi (-Wimplicit-fallthrough): Document FALLTHRU comment style changes.

* doc/invoke.texi (-Wimplicit-fallthrough): Document FALLTHRU comment
style changes.

* lex.c (fallthrough_comment_p): Extend to handle more common FALLTHRU
comment styles.

* c-c++-common/Wimplicit-fallthrough-23.c (foo): Add further tests.

From-SVN: r240885

c-lex.c (c_lex_with_flags): For CPP_COMMENT token with PREV_FALLTHROUGH...

* c-lex.c (c_lex_with_flags) <case CPP_COMMENT>: For CPP_COMMENT
token with PREV_FALLTHROUGH, skip all following CPP_PADDING and
CPP_COMMENT tokens and set add_flags to PREV_FALLTHROUGH afterwards.

* doc/invoke.texi (-Wimplicit-fallthrough): Document the accepted
FALLTHRU comment styles.

* lex.c (fallthrough_comment_p): Fix off-by-one size comparison
errors, cleanup.
(_cpp_lex_direct): Allow arbitrary comments in between
fallthrough_comment_p comment and following token.

* c-c++-common/Wimplicit-fallthrough-23.c: New test.
* c-c++-common/Wimplicit-fallthrough-24.c: New test.

From-SVN: r240884

Daily bump.

From-SVN: r240882

aarch64-arches.def (AARCH64_ARCH): #undef at the end.

2016-10-07  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64-arches.def (AARCH64_ARCH): #undef at the end.
        * config/aarch64/aarch64-cores.def (AARCH64_CORE): Likewise.
        * config/aarch64/aarch64-fusion-pairs.def (AARCH64_FUSION_PAIR): Likewise.
        * config/aarch64/aarch64-option-extensions.def (AARCH64_OPT_EXTENSION): Likewise.
        * config/aarch64/aarch64-tuning-flags.def (AARCH64_EXTRA_TUNING_OPTION): Likewise.
        * config/aarch64/aarch64-opts.h (AARCH64_CORE): Don't #undef here.
        (AARCH64_ARCH): Likewise.
        * common/config/aarch64/aarch64-common.c (AARCH64_OPT_EXTENSION): Likewise.
        (AARCH64_CORE): Likewise.
        (AARCH64_ARCH): Likewise.
        * config/aarch64/aarch64-protos.h (AARCH64_FUSION_PAIR): Likewise.
        (AARCH64_EXTRA_TUNING_OPTION): Likewise.
        * config/aarch64/aarch64.c (AARCH64_FUION_PAIR): Likewise.
        (AARCH64_EXTRA_TUNING_OPTION): Likewise.
        (AARCH64_ARCH): Likewise.
        (AARCH64_CORE): Likewise.
        * config/aarch64/aarch64.h (AARCH64_CORE): Likewise.
        * config/aarch64/driver-aarch64.c (AARCH64_OPT_EXTENSION): Likewise.
        (AARCH64_CORE): Likewise.
        (AARCH64_ARCH): Likewise.

From-SVN: r240876

Fix ICE due to map typespecs with different sized charlens being copied.

2016-10-07  Fritz Reese  <fritzoreese@gmail.com>

Fix ICE due to map typespecs with different sized charlens being copied.

gcc/fortran/
* interface.c (compare_components): Check charlen for BT_CHAR.

gcc/testsuite/gfortran.dg/
* dec_union_11.f90: New testcase.

From-SVN: r240875

re PR c++/64433 (Segmentation fault while compiling)

cp/
PR c++/64433
DR1658, DR1611
* init.c (emit_mem_initializers): Don't construct vbases of
abstract classes.
(push_base_cleanups): Don't push vbase cleanups for abstract class
when in C++14 mode.
* method.c (synthethesized_method_walk): Don't walk vbases of
abstract classes when in C++14 mode.

testsuite/
PR c++/66443
* g++.dg/cpp0x/pr66443-cxx11.C: New.
* g++.dg/cpp0x/pr66443-cxx11-2.C: New.
* g++.dg/cpp1y/pr66443-cxx14.C: New
* g++.dg/cpp1y/pr66443-cxx14-2.C: New.
* g++.dg/cpp1y/pr66443-cxx14-3.C: New.

From-SVN: r240874

Implement LWG2296 helper intrinsic c-family/

Implement LWG2296 helper intrinsic
c-family/
* c-common.h (enum rid): Add RID_ADDRESSOF.
* c-common.c (c_common_reswords): Add __builtin_addressof.
cp/
* parser.c (cp_parser_postfix_expression): Handle RID_ADDRESSOF.
* cp-objcp-common.c (cp_common_init_ts): Handle ADDRESSOF_EXPR.
* constexpr.c (potential_constant_expression_1): Likewise.
* error.c (dump_expr): Likewise.
* typeck.c (cp_build_addressof): New function.
* cp-tree.h (cp_build_addressof): Declare.
* cxx-pretty-print.h (pp_cxx_addressof_expression): Declare.
* cp-tree.def (ADDRESSOF_EXPR): New tree code.
* cxx-pretty-print.c (cxx_pretty_printer::primary_expression): Handle
ADDRESSOF_EXPR.  Add __builtin_addressof and
__has_unique_object_representations into syntax in function comment.
(pp_cxx_addressof_expression): New function.
* pt.c (tsubst_copy_and_build): Handle ADDRESSOF_EXPR.
testsuite/
* g++.dg/cpp0x/addressof1.C: New test.
* g++.dg/cpp0x/addressof2.C: New test.

From-SVN: r240873

rs6000-c.c (rs6000_cpu_cpp_builtins): Split -mfloat128 into -mfloat128-type that enables the IEEE 128-bit floating...

[gcc]
2016-10-06  Michael Meissner  <meissner@linux.vnet.ibm.com>

* config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Split
-mfloat128 into -mfloat128-type that enables the IEEE 128-bit
floating point type infrastructre, and -mfloat128 that enables the
keyword.  Define __FLOAT128__ if -mfloat128, and __FLOAT128_TYPE__
if -mfloat128-type.  Define __ibm128 to be long double by default.
* config/rs6000/rs6000.c (rs6000_debug_reg_global): Print whether
the IEEE 128-bit floating point type infrastructure should
automatically be enabled.
(rs6000_init_hard_regno_mode_ok): Switch to use -mfloat128-type
instead of -mfloat128 to enable KFmode.
(rs6000_option_override_internal): Split the option -mfloat128
into -mfloat128-type and -mfloat128.  On Linux PowerPC 64-bit
systems, automatically set -mfloat128-type, but don't enable it on
other operating systems.  Move setting the long double size and
IEEE quad support before the IEEE 128-bit floating point changes.
(rs6000_init_builtins): Do not create a unique type for __ibm128
if long double is IBM extended double, instead rely on __ibm128
being defined as 'long double'.  If -mfloat128-type and not
-mfloat128, create the KFmode type with an undocumented __ieee128
keyword.
(rs6000_init_libfuncs): Use -mfloat128-type instead of
-mfloat128 for tests about the types, but keep tests for
-mfloat128 to enable the keyword support.
(rs6000_complex_function_value): Likewise.
(rs6000_scalar_mode_supported_p): Likewise.
(rs6000_floatn_mode): Likewise.
(rs6000_c_mode_for_suffix): Likewise.
(rs6000_opt_masks): Add -mfloat128-type.
* config/rs6000/rs6000-cpus.def (POWERPC_MASKS): Add support for
-mfloat128-type being split from -mfloat128.  Add
-mfloat128-hardware, which was missing.
* config/rs6000/rs6000.opt (-mfloat128): Split -mfloat128 into
-mfloat128 and -mfloat128-type:
(-mfloat128-type): Likewise.
* config/rs6000/linux64.h (TARGET_FLOAT128_ENABLE_TYPE): Define so
that 64-bit Linux systems with enable -mfloat128-type by default
on VSX systems.
* config/rs6000/rs6000.h (TARGET_FLOAT128_ENABLE_TYPE): Likewise.
(FLOAT128_VECTOR_P): Switch IEEE 128-bit floating points to use
-mfloat128-type instead of -mfloat128.
(FLOAT128_2REG_P): Likewise.
(MASK_FLOAT128_TYPE): Likewise.
(ALTIVEC_ARG_MAX_RETURN): Likewise.
(RS6000_BTM_FLOAT128): Likewise.
(TARGET_FLOAT128): Poison old identifiers.
(OPTION_MASK_FLOAT128): Likewise.
(MASK_FLOAT128): Likewise.
* config/rs6000/rs6000.md (FP): Likewise.
(FLOAT128): Likewise.
(fix_trunc<mode>di2): Likewise.
(fixuns_trunc<IEEE128:mode><SDI:mode>2): Likewise.
(floatdi<mode>2): Likewise.
(floatuns<SDI:mode><IEEE128:mode>2): Likewise.
(neg<mode>2, FLOAT128 iterator): Likewise.
(abs<mode>2, FLOAT128 iterator): Likewise.
(ieee_128bit_negative_zero): Likewise.
(ieee_128bit_vsx_neg<mode>2): Likewise.
(ieee_128bit_vsx_neg<mode>2_internal): Likewise.
(ieee_128bit_vsx_abs<mode>2): Likewise.
(ieee_128bit_vsx_abs<mode>2_internal): Likewise.
(ieee_128bit_vsx_nabs<mode>2): Likewise.
(ieee_128bit_vsx_nabs<mode>2_internal): Likewise.
(extendiftf2): Likewise.
(extendifkf2): Likewise.
(extendtfkf2): Likewise.
(trunciftf2): Likewise.
(truncifkf2): Likewise.
(trunckftf2): Likewise.
(trunctfif2): Likewise.
(extendkftf2): Likewise.
(trunctfkf2): Likewise.

[gcc/testsuite]
2016-10-06  Michael Meissner  <meissner@linux.vnet.ibm.com>

* gcc.target/powerpc/float128-type-1.c: New test to check that
PowerPC 64-bit Linux enables -mfloat128-type by default.
* gcc.target/powerpc/float128-type-2.c: Likewise.
* gcc.target/powerpc/float128-mix.c: Change error message to
reflect that __ibm128 is now #define'ed to be long double.

From-SVN: r240872

re PR fortran/77406 (ICE in generic_correspondence, at fortran/interface.c:1123)

2016-10-07  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77406
* interface.c (gfc_compare_interfaces): Fix detection of ambiguous
interface involving alternate return.
(check_interface1): Improve error message and loci.

2016-10-07  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77406
* gfortran.dg/pr77406.f90: New test.
* gfortran.dg/assumed_type_3.f90: Update error messages.
* gfortran.dg/defined_operators_1.f90: Ditto.
* gfortran.dg/generic_26.f90: Ditto.
* gfortran.dg/generic_7.f90: Ditto.
* gfortran.dg/gomp/udr5.f90: Ditto.
* gfortran.dg/gomp/udr7.f90: Ditto.
* gfortran.dg/interface_1.f90: Ditto.
* gfortran.dg/interface_37.f90: Ditto.
* gfortran.dg/interface_5.f90: Ditto.
* gfortran.dg/interface_6.f90: Ditto.
* gfortran.dg/interface_7.f90
* gfortran.dg/no_arg_check_3.f90
* gfortran.dg/operator_5.f90
* gfortran.dg/proc_ptr_comp_20.f90: Ditto.

From-SVN: r240870

Improve implementation-defined docs for libstdc++

* doc/xml/manual/status_cxx1998.xml: Improve documentation of
implementation-defined properties.
* doc/xml/manual/status_cxx2011.xml: Likewise.
* doc/xml/manual/status_cxx2017.xml: Likewise.

From-SVN: r240869

Implement std::has_unique_object_representations

* doc/xml/manual/status_cxx2017.xml: Update status.
* include/std/type_traits (has_unique_object_representations): Define.
* testsuite/20_util/has_unique_object_representations/value.cc: New.
* testsuite/20_util/has_unique_object_representations/requirements/
explicit_instantiation.cc: New.
* testsuite/20_util/has_unique_object_representations/requirements/
typedefs.cc: New.

From-SVN: r240868

re PR c++/77700 (suspicios code in cp/parser.c)

2016-10-07  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c++/77700
        * c-common.c (c_common_truthvalue_conversion): Warn also for
        suspicious enum values in boolean context.

cp:
2016-10-07  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c++/77700
        * parser.c (cp_parser_base_specifier): Fix a warning.

testsuite:
2016-10-07  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c++/77700
        * c-c++-common/Wint-in-bool-context.c: Update test.

From-SVN: r240867

[simplify-rtx] Zero-initialise local array in simplify_immed_subreg

* simplify-rtx.c (simplify_immed_subreg): Zero-initialize tmp array
before merging in bytes to pass down to real_from_target.

From-SVN: r240866

tree-ssa-propagate.c (replace_phi_args_in): Remove no longer required hack.

2016-10-07  Richard Biener  <rguenther@suse.de>

* tree-ssa-propagate.c (replace_phi_args_in): Remove no longer
required hack.
(substitute_and_fold_dom_walker::before_dom_children):
Substitute and fold before pass specific folding to avoid
feeding that with SSA names that will be later released.
* tree-ssa-ccp.c (get_value_for_expr): Guard for new SSA names
introduced by folding and visited by evaluate_stmt called during
ccp_fold_stmt.
(likely_value): Likewise.
(evaluate_stmt): Likewise.
* tree-vrp.c (simplify_truth_ops_using_ranges): Fold modified stmt.
(simplify_div_or_mod_using_ranges): Likewise.
(simplify_min_or_max_using_ranges): Likewise.
(simplify_abs_using_ranges): Likewise.
(simplify_conversion_using_ranges): Likewise.
(simplify_float_conversion_using_ranges): Likewise.
(simplify_stmt_using_ranges): Likewise.

* gcc.dg/tree-ssa/vrp01.c: Adjust.
* gcc.dg/tree-ssa/vrp34.c: Likewise.

From-SVN: r240865

gimplify.c (should_warn_for_implicit_fallthrough): Check for FALLTHROUGH_LABEL_P here...

* gimplify.c (should_warn_for_implicit_fallthrough): Check for
FALLTHROUGH_LABEL_P here...
(warn_implicit_fallthrough_r): ...not here.

* c-c++-common/Wimplicit-fallthrough-22.c: New test.

From-SVN: r240864

re PR c++/69733 (-Wignored-qualifiers points to wrong const)

c/
PR c++/69733
* c-decl.c (smallest_type_quals_location): New static function.
(grokdeclarator): Try to find the correct location for an ignored
qualifier.
cp/
PR c++/69733
* decl.c (grokdeclarator): Try to find the correct location for an
ignored qualifier.
testsuite/
PR c++/69733
* c-c++-common/pr69733.c: New test.
* gcc.dg/pr69733.c: New test.
* gcc.target/i386/pr69733.c: New test.

From-SVN: r240863

re PR tree-optimization/77880 (out of memory building recent LLVM on ppc64le with -O3)

PR tree-optimization/77880
* expr.c (by_pieces_ninsns): Use unsigned HOST_WIDE_INT where
necessary.

From-SVN: r240862

re PR c++/77803 (Bogus implicit-fallthrough warning)

PR c++/77803
* gimplify.c (last_stmt_in_scope): Add check for FALLTHROUGH ().

* g++.dg/warn/Wimplicit-fallthrough-1.C: New test.

From-SVN: r240861

bitmap.h: Document constraints on bitmap modification while iterating over it.

2016-10-07  Richard Biener  <rguenther@suse.de>

* bitmap.h: Document constraints on bitmap modification while
iterating over it.

From-SVN: r240860

bitmap.c (bitmap_elem_to_freelist): Set indx to -1.

2016-10-07  Richard Biener  <rguenther@suse.de>

* bitmap.c (bitmap_elem_to_freelist): Set indx to -1.
* bitmap.h (bmp_iter_set): When advancing to the next element
check that we didn't remove the current one.
(bmp_iter_and): Likewise.
(bmp_iter_and_compl): Likewise.
* tree-ssa.c (release_defs_bitset): Do not remove worklist bit
we currently iterate on but keep a one-level queue.
* sched-deps.c (remove_from_deps): Do not clear current bit
but keep a one-level queue.

From-SVN: r240859

re PR tree-optimization/77664 (Missed optimization: signed int >= 0 && < unsigned short)

PR tree-optimization/77664
* tree-ssa-reassoc.c (update_range_test): Also clear low and high
for the other ranges.
(optimize_range_tests_diff): Fix up formatting.
(optimize_range_tests_var_bound): New function.
(optimize_range_tests): Use it.

* gcc.dg/tree-ssa/pr77664.c: New test.
* gcc.dg/pr77664.c: New test.

From-SVN: r240858

Really set priority to 99 for __gcov_exit

* coverage.c (build_gcov_exit_decl): Fix priority what
should be really 99.

From-SVN: r240857

Fix profiled bootstrap (part 2)

* lambda.c (maybe_add_lambda_conv_op): Set default value.

From-SVN: r240856

gimple-low.c (lower_gimple_bind): Clear DECL_CHAIN of vars in gimple_bind_vars but not in BLOCK_VARS.

2016-10-07  Richard Biener  <rguenther@suse.de>

* gimple-low.c (lower_gimple_bind): Clear DECL_CHAIN of
vars in gimple_bind_vars but not in BLOCK_VARS.

From-SVN: r240855

re PR tree-optimization/77879 (mpd gets miscompiled since r235622)

2016-10-07  Richard Biener  <rguenther@suse.de>

PR tree-optimization/77879
* tree-ssa-structalias.c (handle_const_call): Properly handle
NRV return slots.
(handle_pure_call): Likewise.

From-SVN: r240854

compiler: stack allocate storage for temp slices.

    During the lowering phase, the variable arguments to a varargs call are
    packaged up into a temporary slice object; the storage for this slice
    was being unconditionally allocated on the heap.  Heap allocation is not
    necessary, however, if the varargs call correspond to an "append", since
    the append runtime routine only reads the slice storage (as opposed to
    stashing away the storage pointer). Enhance the lowering code to keep
    the slice storage on the stack for append() calls, to improve
    performance.

    Addresses issue golang/go#17304.

    Reviewed-on: https://go-review.googlesource.com/30136

From-SVN: r240853

2016-10-06  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

* config/rs6000/rs6000.c (rs6000_elf_asm_out_constructor)
(rs6000_elf_asm_out_destructor): increase size of buf to avoid
possible overflow.

From-SVN: r240852

[multiple changes]

2016-10-06  Louis Krupp <louis.krupp@zoho.com>

* gfortran.dg/pr69955.f90: New test.

2016-10-06  Louis Krupp  <louis.krupp@zoho.com>

PR fortran/69955
* trans-array.c (gfc_conv_expr_descriptor): Don't allocate
components if it's not necessary.

From-SVN: r240851

2016_10-06  Louis Krupp  <louis.krupp@zoho.com>

PR fortran/57910
* gfortran.dg/pr57910.f90: New test.

2016-10-05  Louis Krupp  <louis.krupp@zoho.com>

PR fortran/57910
* trans-expr.c (gfc_add_interface_mapping): Don't try to
dereference call-by-value scalar argument

From-SVN: r240850

Daily bump.

From-SVN: r240849

aarch64-cores.def: Add a comment before each set of cores.

2016-10-06  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64-cores.def: Add a comment before each
        set of cores.

From-SVN: r240846

C++17 copy elision improvements.

* call.c (build_temp, convert_like_real): Don't re-copy
TARGET_EXPR.  Handle packed fields.
(build_x_va_arg): Wrap it in a TARGET_EXPR.
(build_over_call): Add sanity check.
* cvt.c (early_elide_copy): New.
(ocp_convert): Use it.
* except.c (build_throw): Use it.
* init.c (get_nsdmi): Put back the TARGET_EXPR.
(expand_default_init): Call early_elide_copy.
* typeck.c (cp_build_modify_expr): Call early_elide_copy.

From-SVN: r240845

Make std::scoped_allocator_adaptor's OUTERMOST recursive

* doc/xml/manual/status_cxx2011.xml: Update status.
* include/std/scoped_allocator (__outer_allocator_t, __outermost_type):
New helpers for recursive OUTERMOST.
(__outermost): Use __outermost_type::_S_outermost.
(__do_outermost, scoped_allocator_adaptor::__outermost_type): Remove.
(scoped_allocator_adaptor::__outermost_alloc_traits): Use new
__outermost_type helper.
* testsuite/20_util/scoped_allocator/outermost.cc: New test.

From-SVN: r240844

Implement P0258R2 - helper for C++17 std::has_unique_object_representations trait c-family/

Implement P0258R2 - helper for C++17
std::has_unique_object_representations trait
c-family/
* c-common.h (enum rid): Add RID_HAS_UNIQUE_OBJ_REPRESENTATIONS.
* c-common.c (c_common_reswords): Add
__has_unique_object_representations.
cp/
* cp-tree.h (enum cp_trait_kind): Add
CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS.
(struct lang_type_class): Add unique_obj_representations
and unique_obj_representations_set bitfields.
(CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS,
CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS_SET): Define.
(type_has_unique_obj_representations): Declare.
* parser.c (cp_parser_primary_expression): Handle
RID_HAS_UNIQUE_OBJ_REPRESENTATIONS.
(cp_parser_trait_expr): Likewise.  Formatting fix.
* semantics.c (trait_expr_value, finish_trait_expr): Handle
CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS.
* tree.c (type_has_unique_obj_representations): New function.
(record_has_unique_obj_representations): New function.
* cxx-pretty-print.c (pp_cxx_trait_expression): Handle
CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS.
testsuite/
* g++.dg/cpp1z/has-unique-obj-representations1.C: New test.
* g++.dg/cpp1z/has-unique-obj-representations2.C: New test.

From-SVN: r240843

re PR tree-optimization/77862 (ice in add_equivalence)

Fix PR77862
gcc/testsuite/ChangeLog:

2016-10-06  Kugan Vivekanandarajah  <kuganv@linaro.org>

PR tree-optimization/77862
* gcc.dg/pr77862.c: New test.

gcc/ChangeLog:

2016-10-06  Kugan Vivekanandarajah  <kuganv@linaro.org>

PR tree-optimization/77862
* tree-vrp.c (add_equivalence): Use get_value_range so that
num_vr_values is checked before accessing vr_values.

From-SVN: r240842

Handle POINTER_TYPE_P in EVRP

Handle POINTER_TYPE_P in EVRP
gcc/ChangeLog:

2016-10-06  Kugan Vivekanandarajah  <kuganv@linaro.org>

* tree-vrp.c (evrp_dom_walker::before_dom_children): Handle
  POINTER_TYPE_P.

gcc/testsuite/ChangeLog:

2016-10-06  Kugan Vivekanandarajah  <kuganv@linaro.org>

* gcc.dg/tree-ssa/evrp4.c: New test.

From-SVN: r240841

go-gcc.cc (Gcc_backend::stack_allocation_expression): Clear the returned memory.

* go-gcc.cc (Gcc_backend::stack_allocation_expression): Clear the
returned memory.

From-SVN: r240840

re PR tree-optimization/71661 (wrong code at -O3)

PR tree-optimization/71661
* tree-cfgcleanup.c (remove_forwarder_block_with_phi): Handle case when
removal of a forwarder exposes a new natural loop.

PR tree-optimization/71661
* gcc.dg/tree-ssa/pr71661.c: New test.

From-SVN: r240836

* config/i386/i386.c (ix86_add_stmt_cost): Simplify condition.

From-SVN: r240835

sse.md (andnot<mode>3): Add FALLTHRU comments.

* config/i386/sse.md (andnot<mode>3): Add FALLTHRU comments.
Introduce ssesuffix variable.
(<mask_codefor><code><mode>3<mask_name>): Ditto.
(*<code><mode>3): Ditto.

From-SVN: r240834

postreload.c (reload_cse_simplify): Skip also USE when detecting noop move.

* postreload.c (reload_cse_simplify): Skip also USE when detecting
noop move.

From-SVN: r240833

re PR tree-optimization/77855 (wrong code at -O3 on x86_64-linux-gnu (in both 32-bit and 64-bit modes))

2016-10-06  Richard Biener  <rguenther@suse.de>

PR tree-optimization/77855
* tree-ssa-pre.c (prune_clobbered_mems): Queue exprs to remove
instead of removing the current item while iterating over the set
which is not safe.

* gcc.dg/torture/pr77855.c: New testcase.

From-SVN: r240832

re PR target/77759 (ICE in function_arg_record_value on nested empty class)

PR target/77759
* config/sparc/sparc.c (classify_data_t): Remove int_regs field.
(classify_registers): Don't set it
(function_arg_slotno): Don't initialize and test it.  Tidy up.

Co-Authored-By: Eric Botcazou <ebotcazou@adacore.com>
From-SVN: r240830

re PR tree-optimization/77839 (Memory- and compile time hog at -O1 and above)

2016-10-06  Richard Biener  <rguenther@suse.de>

PR tree-optimization/77839
* tree-ssa-sccvn.c (set_ssa_val_to): Forbid value -> constant value
lattice transition.

* gcc.dg/torture/pr77839.c: New testcase.

From-SVN: r240829

Add -fprofile-update option juggling

* gcc.c: Set -fprofile-update=atomic when profiling is
enabled and -pthread is set.  Warn when one combines
-pthread and -fprofile-update=single for an app using
profiling code.

From-SVN: r240828

Fix warnings for make profiledbootstrap (PR bootstrap/77788)

PR bootstrap/77788
* expmed.h (mul_highpart_cost_ptr): Add an gcc_assert.
* gimple-ssa-strength-reduction.c (slsr_process_cast):
Initialize a pointer to NULL.
(slsr_process_copy): Likewise.
* input.c (location_get_source_line): Likewise.
* tree-ssa-ccp.c (optimize_atomic_bit_test_and): Likewise.

From-SVN: r240827

escape: Avoid allocation of varargs parameter.

    There was a bug in the escape analysis that would cause
    the slice implicitly created to hold varargs parameters to always
    escape, as well as the appended to slice argument.  The intended
    behavior was that the elements of the appendee and appended to
    slice would escape to the heap.  Alongside of these issues,
    the varargs slice would also have a chance to be initialized to an
    invalid memory location if it were stack-allocated.  This has been
    fixed as well.

    Reviewed-on: https://go-review.googlesource.com/30450

From-SVN: r240826

* g++.dg/cpp1z/init-statement9.C: New test.

From-SVN: r240824

Daily bump.

From-SVN: r240823

Implement P0135R1, Guaranteed copy elision.

* cvt.c (ocp_convert): Don't re-copy a TARGET_EXPR in C++17.

From-SVN: r240820

PR c++/54293 - binding reference to member of temporary

* call.c (reference_binding): Fix binding to member of temporary.

From-SVN: r240819

* call.c (extend_ref_init_temps): Fix TARGET_EXPR handling.

From-SVN: r240818

Delete x86 deprecated pcommit instruction support

Delete x86 pcommit instruction support, which has been deprecated:

https://software.intel.com/en-us/blogs/2016/09/12/deprecate-pcommit-instruction

gcc/

* common/config/i386/i386-common.c (OPTION_MASK_ISA_PCOMMIT_UNSET,
OPTION_MASK_ISA_PCOMMIT_SET): Deleted definitions.
(ix86_handle_option): Deleted handle of OPT_mpcommit.
* config.gcc: Deleted pcommitintrin.h
* config/i386/pcommitintrin.h: Deleted file.
* config/i386/cpuid.h (bit_PCOMMIT): Deleted.
* config/i386/driver-i386.c (host_detect_local_cpu): Deleted pcommit
detection.
* config/i386/i386-c.c (ix86_target_macros_internal): Deleted define
__PCOMMIT__.
* config/i386/i386.c (ix86_target_string): Deleted -mpcommit.
(PTA_PCOMMIT): Deleted define.
(ix86_option_override_internal): Deleted handle of option.
(ix86_valid_target_attribute_inner_p): Deleted pcommit.
* config/i386/i386-builtin.def (IX86_BUILTIN_PCOMMIT,
__builtin_ia32_pcommit): Deleted.
* config/i386/i386.h (TARGET_PCOMMIT, TARGET_PCOMMIT_P): Deleted.
* config/i386/i386.md (unspecv): Deleted UNSPECV_PCOMMIT.
(pcommit): Deleted instruction.
* config/i386/i386.opt: Mention -mpcommit deprecation.
* config/i386/x86intrin.h: Deleted inclusion of pcommitintrin.h.

gcc/testsuite/

* gcc.target/i386/pcommit-1.c: Deleted.
* gcc.target/i386/sse-12.c: Deleted -pcommit option.
* gcc.target/i386/sse-13.c: Ditto.
* gcc.target/i386/sse-14.c: Ditto.
* gcc.target/i386/sse-22.c: Ditto.
* gcc.target/i386/sse-23.c: Ditto.
* g++.dg/other/i386-2.C: Ditto.

From-SVN: r240816

pr77833.c: Require int128 effective target.

* gcc.target/i386/pr77833.c: Require int128 effective target.

From-SVN: r240815

re PR target/77874 (two problems with gcc.target/i386/avx-1.c)

PR target/77874
* config/i386/sse.md (<mask_codefor><code><mode>3<mask_name>):
Remove wrong assert.
(<floatsuffix>float<sseintvecmodelower><mode>2<mask_name><round_name>:
Use <round_constraint> as operand 1 constraint.

From-SVN: r240814

re PR fortran/58991 (ICE with associate and character string constant)

2016-10-05  Steven G. Kargl  <kargls@gcc.gnu.org>

PR fortran/58991
PR fortran/58992
* resolve.c (resolve_assoc_var):  Fix CHARACTER type-spec for a
selector in ASSOCIATE.
(resolve_fl_variable): Skip checks for an ASSOCIATE variable.

2016-10-05  Steven G. Kargl  <kargls@gcc.gnu.org>

PR fortran/58991
PR fortran/58992
* gfortran.dg/associate_22.f90: New test.

From-SVN: r240812

Fix ICE due to comparison between UNION components.

2016-10-05  Fritz Reese  <fritzoreese@gmail.com>

Fix ICE due to comparison between UNION components.

gcc/fortran/
* interface.c (gfc_compare_types): Don't compare BT_UNION components
until we know they're both UNIONs.
* interface.c (gfc_compare_union_types): Guard against empty
components.

gcc/testsuite/gfortran.dg/
* dec_union_9.f90: New testcase.
* dec_union_10.f90: New testcase.

From-SVN: r240810

* parser.c (cp_parser_skip_to_end_of_statement): Add missing break.

From-SVN: r240809

Fix last commit.

From-SVN: r240806

re PR sanitizer/66343 ("Error: .Lubsan_type3 already defined" with UBSan and precompiled headers)

PR sanitizer/66343
* ubsan.c (ubsan_create_data): Call initialize_sanitizer_builtins here.
(ubsan_instrument_float_cast): And not here.

* c-ubsan.c (ubsan_instrument_return): Don't call
initialize_sanitizer_builtins here.

* gcc.dg/pch/pr66343-3.c: New test.
* gcc.dg/pch/pr66343-3.hs: New file.

From-SVN: r240804

re PR sanitizer/66343 ("Error: .Lubsan_type3 already defined" with UBSan and precompiled headers)

PR sanitizer/66343
* ubsan.c (ubsan_ids): New GTY(()) array.
(ubsan_type_descriptor, ubsan_create_data): Use ubsan_ids
instead of static local counters.

* gcc.dg/pch/pr66343-1.c: New test.
* gcc.dg/pch/pr66343-1.hs: New file.
* gcc.dg/pch/pr66343-2.c: New test.
* gcc.dg/pch/pr66343-2.hs: New file.

From-SVN: r240803

* semantics.c (finish_compound_literal): Handle class placeholder.

From-SVN: r240802

MAINTAINERS: Update email address after it got reverted.

2016-10-05  Steve Ellcey  <sellcey@caviumnetworks.com>

* MAINTAINERS: Update email address after it got reverted.

From-SVN: r240801

c-common.c (c_common_truthvalue_conversion): Warn also for suspicious conditional expression in boolean context when...

2016-10-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-common.c (c_common_truthvalue_conversion): Warn also for suspicious
        conditional expression in boolean context when only one arm is
        non-boolean.

testsuite:
2016-10-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-c++-common/Wint-in-bool-context.c: Update test.

From-SVN: r240799

Implement P0305R1, Selection statements with initializer.

* cp-array-notation.c (create_an_loop): Call finish_init_stmt
instead of finish_for_init_stmt.
* cp-tree.h (finish_for_init_stmt): Rename to finish_init_stmt.
* decl.c (poplevel): Adjust a comment.
* init.c (build_vec_init): Call finish_init_stmt instead of
finish_for_init_stmt.
* name-lookup.c (pushdecl_maybe_friend_1): Adjust a comment.
* name-lookup.h (enum scope_kind): Likewise.
* parser.c (cp_parser_statement): Update commentary.
(cp_parser_init_statement_p): New function.
(cp_parser_selection_statement): Parse the optional init-statement.
(cp_parser_for): Call finish_init_stmt instead of finish_for_init_stmt.
(cp_parser_c_for): Likewise.
(cp_convert_range_for): Call finish_init_stmt instead of finish_for_init_stmt.
(cp_parser_range_for_member_function): Update commentary.
(cp_parser_iteration_statement):
(cp_parser_for_init_statement): Rename to cp_parser_init_statement.
* pt.c (tsubst_omp_for_iterator): Update commentary.
(tsubst_expr): Call finish_init_stmt instead of finish_for_init_stmt.
* semantics.c (finish_for_init_stmt): Rename to finish_init_stmt.
Update commentary.

* g++.dg/cpp1z/init-statement1.C: New test.
* g++.dg/cpp1z/init-statement2.C: New test.
* g++.dg/cpp1z/init-statement3.C: New test.
* g++.dg/cpp1z/init-statement4.C: New test.
* g++.dg/cpp1z/init-statement5.C: New test.
* g++.dg/cpp1z/init-statement6.C: New test.
* g++.dg/cpp1z/init-statement7.C: New test.
* g++.dg/cpp1z/init-statement8.C: New test.

From-SVN: r240798

re PR fortran/67524 (ICE on using implicit character instead of implicit none etc.)

2016-10-05  Louis Krupp  <louis.krupp@zoho.com>

PR fortran/67524
* gfortran.dg/pr67524.f90: New test.

2016-10-05  Louis Krupp  <louis.krupp@zoho.com>

PR fortran/67524
* resolve.c (resolve_symbol): Don't apply default type rules to
mixed-entry master created for function entry points.

From-SVN: r240797

re PR sanitizer/77823 (ICE: in ubsan_encode_value, at ubsan.c:137 with -fsanitize=undefined and vector types)

PR sanitizer/77823
* c-ubsan.c (ubsan_instrument_shift): Return NULL_TREE if type0
is not integral.

* c-c++-common/ubsan/shift-9.c: New test.

From-SVN: r240796

Fix pr69941.c test failure for avr

The test assumes ints are atleast 32 bits wide. For the avr
target, ints are 16 bits wide. This leads VRP to conclude
that a right shift by 9 followed by an equality comparison
to 0x74 can never be true. VRP eliminates the conditional, and
the code ends up unconditionally calling __builtin_abort.

Fixed the testcase to use __INT32_TYPE__ for targets with less
than 32 bit wide integers, wherever the size happens to be
significant.

gcc/testsuite/ChangeLog

2016-10-05  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

        * gcc.dg/torture/pr69941.c: Use __INT32_TYPE__ instead
        of int if __SIZEOF_INT__ is less than 4 bytes.

From-SVN: r240795

re PR libfortran/77868 (Fail to NULL guard check for internal unit in inquire_via_unit)

2016-10-05  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

PR fortran/77868
* io/inquire.c (inquire_via_unit): NULL guard the check for
internal unit passed into child IO procedure.

* gfortran.dg/dtio_15.f90: Fix spaces in dg-do.
* gfortran.dg/class_array_20.f03: Likewise.
* gfortran.dg/class_array_21.f03: Likewise.
* gfortran.dg/finalize_29.f08: Likewise.
* gfortran.dg/unlimited_polymorphic_23.f90: Likewise.

From-SVN: r240794