Fix params.exp test-cases

From-SVN: r238633

Use correct form of delete in libstdc++.exp

* testsuite/lib/libstdc++.exp (check_v3_target_namedlocale): Use
delete[] instead of delete.

From-SVN: r238632

PR c++/69223 - ICE with deduced template return type.

* semantics.c (apply_deduced_return_type): Call
complete_type_or_else before building the new RESULT_DECL.

From-SVN: r238624

PR c++/71274 - deprecated warning without use.

* decl2.c (maybe_instantiate_decl): Split out from mark_used.
(decl_constant_var_p): Use it instead.

From-SVN: r238623

PR c++/71630 - extern variable template

* pt.c (instantiate_decl): Fix pattern_defined for namespace scope
variable templates.

From-SVN: r238622

PR c++/71913 - missing copy elision with new.

* call.c (unsafe_copy_elision_p): It's OK to elide when
initializing an unknown object.

From-SVN: r238621

call.c (build_over_call): Check unsafe_copy_elision_p even for trivial constructors.

* call.c (build_over_call): Check unsafe_copy_elision_p even for
trivial constructors.
* method.c (do_build_copy_constructor): Don't copy tail padding
even in a trivial constructor.

From-SVN: r238620

compiler: fix check for duplicate declaration

    The compiler check that issued a duplicate declaration error for
        a, a, a := 1, 2, 3
    was incorrectly issuing an error for
        a, a, a = 1, 2, 3
    While this is not particularly useful, it is valid Go.

    Test is https://golang.org/cl/25143.

    Reviewed-on: https://go-review.googlesource.com/25144

From-SVN: r238618

Daily bump.

From-SVN: r238617

vec-extract.h: New files to check the vec_extract built-in functions for all vector types...

2016-07-21  Michael Meissner  <meissner@linux.vnet.ibm.com>

* gcc.target/powerpc/vec-extract.h: New files to check the
vec_extract built-in functions for all vector types, testing
accessing each element, both with constant and variable element
numbers.
* gcc.target/powerpc/vec-extract-v16qi.c: Likewise.
* gcc.target/powerpc/vec-extract-v16qiu.c: Likewise.
* gcc.target/powerpc/vec-extract-v2df.c: Likewise.
* gcc.target/powerpc/vec-extract-v2di.c: Likewise.
* gcc.target/powerpc/vec-extract-v4sf.c: Likewise.
* gcc.target/powerpc/vec-extract-v4si.c: Likewise.
* gcc.target/powerpc/vec-extract-v4siu.c: Likewise.
* gcc.target/powerpc/vec-extract-v8hi.c: Likewise.
* gcc.target/powerpc/vec-extract-v8hiu.c: Likewise.

From-SVN: r238613

Fix naming, qualification and broken test for propagate_const

* include/experimental/propagate_const (propagate_const::__t): Rename
to _M_t and remove comment. Qualify std::move and std::forward.
* testsuite/experimental/propagate_const/cons/default.cc: Fix test.

From-SVN: r238611

Define missing delete operators in libstdc++ testsuite

* testsuite/23_containers/vector/zero_sized_allocations.cc:
Define sized deallocation function.
* testsuite/util/testsuite_new_operators.h:
(operator delete(void*, const std::nothrow_t&)): Define nothrow
deallocation function.

From-SVN: r238610

Fix out-of-bound array accesses in libstdc++ testsuite

* testsuite/21_strings/basic_string/modifiers/append/char/1.cc: Fix
reads past the end of strings.
* testsuite/21_strings/basic_string/operations/compare/char/1.cc:
Likewise.
* testsuite/21_strings/char_traits/requirements/short/1.cc: Fix
invalid array accesses.
* testsuite/experimental/string_view/operations/compare/char/1.cc:
Fix read past the end of string.
* testsuite/util/testsuite_character.cc: Fix out-of-bounds write.

From-SVN: r238609

Fix missing returns in libstdc++ testsuite

* testsuite/24_iterators/container_access.cc: Fix missing returns.
* testsuite/24_iterators/range_access_cpp14.cc: Likewise.

From-SVN: r238608

Remove memory leaks in libstdc++ testsuite

* testsuite/18_support/new_delete_placement.cc: Don't allocate (and
leak) memory for arguments to placement delete.
* testsuite/20_util/addressof/1.cc: Don't leak memory.
* testsuite/22_locale/locale/global_locale_objects/3.cc: Likewise.
* testsuite/23_containers/unordered_multimap/insert/55028-debug.cc:
Likewise.

From-SVN: r238607

016-07-21  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/71876
        * builtin-attrs.def (ATTR_RT_NOTHROW_LEAF_LIST): New return twice
        attribute.
        * builtins.def (BUILT_IN_SETJMP): Use ATTR_RT_NOTHROW_LEAF_LIST here.
        * calls.c (special_function_p): Remove the special handling of the
        "__builtin_" prefix.

From-SVN: r238606

016-07-21  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/71876
        * calls.c (gimple_maybe_alloca_call_p): New function.  Return true
        if STMT may be an alloca call.
        (gimple_alloca_call_p, alloca_call_p): Return only true for the
        builtin alloca call.
        * calls.h (gimple_maybe_alloca_call_p): New function.
        * tree-inline.c (inline_forbidden_p_stmt): Use
        gimple_maybe_alloca_call_p here.

From-SVN: r238605

backport: Makefile.am (myo_inc_dir): Remove.

Merge liboffloadmic from upstream

liboffloadmic/
* Makefile.am (myo_inc_dir): Remove.
(toolexeclib_LTLIBRARIES): Remove libmyo-client.la and
libmyo-service.la.
(liboffloadmic_cppflags): Remove -DMYO_SUPPORT.
(liboffloadmic_host_la_SOURCES): Remove offload_myo_host.cpp.
(liboffloadmic_target_la_SOURCES): Remove offload_myo_target.cpp.
(liboffloadmic_target_la_LIBADD): Remove libmyo-service.la.
(libmyo_client_la_SOURCES, libmyo_service_la_SOURCES): Remove.
(libmyo_client_la_DEPENDENCIES, libmyo_service_la_DEPENDENCIES): Remove.
(libmyo_client_la_CPPFLAGS, libmyo_service_la_CPPFLAGS): Remove.
(libmyo_client_la_LDFLAGS, libmyo_service_la_LDFLAGS): Remove.
* Makefile.in: Regenerate.
* doc/doxygen/header.tex: Merge from upstream, version 20160715
<https://openmprtl.org/sites/default/files/liboffload_oss_20160715.tgz>.
* runtime/cean_util.cpp: Likewise.
* runtime/cean_util.h: Likewise.
* runtime/coi/coi_client.cpp: Likewise.
* runtime/coi/coi_client.h: Likewise.
* runtime/coi/coi_server.cpp: Likewise.
* runtime/coi/coi_server.h: Likewise.
* runtime/compiler_if_host.cpp: Likewise.
* runtime/compiler_if_host.h: Likewise.
* runtime/compiler_if_target.cpp: Likewise.
* runtime/compiler_if_target.h: Likewise.
* runtime/dv_util.cpp: Likewise.
* runtime/dv_util.h: Likewise.
* runtime/liboffload_error.c: Likewise.
* runtime/liboffload_error_codes.h: Likewise.
* runtime/liboffload_msg.c: Likewise.
* runtime/liboffload_msg.h: Likewise.
* runtime/mic_lib.f90: Likewise.
* runtime/offload.h: Likewise.
* runtime/offload_common.cpp: Likewise.
* runtime/offload_common.h: Likewise.
* runtime/offload_engine.cpp: Likewise.
* runtime/offload_engine.h: Likewise.
* runtime/offload_env.cpp: Likewise.
* runtime/offload_env.h: Likewise.
* runtime/offload_host.cpp: Likewise.
* runtime/offload_host.h: Likewise.
* runtime/offload_iterator.h: Likewise.
* runtime/offload_myo_host.cpp: Likewise.
* runtime/offload_myo_host.h: Likewise.
* runtime/offload_myo_target.cpp: Likewise.
* runtime/offload_myo_target.h: Likewise.
* runtime/offload_omp_host.cpp: Likewise.
* runtime/offload_omp_target.cpp: Likewise.
* runtime/offload_orsl.cpp: Likewise.
* runtime/offload_orsl.h: Likewise.
* runtime/offload_table.cpp: Likewise.
* runtime/offload_table.h: Likewise.
* runtime/offload_target.cpp: Likewise.
* runtime/offload_target.h: Likewise.
* runtime/offload_target_main.cpp: Likewise.
* runtime/offload_timer.h: Likewise.
* runtime/offload_timer_host.cpp: Likewise.
* runtime/offload_timer_target.cpp: Likewise.
* runtime/offload_trace.cpp: Likewise.
* runtime/offload_trace.h: Likewise.
* runtime/offload_util.cpp: Likewise.
* runtime/offload_util.h: Likewise.
* runtime/ofldbegin.cpp: Likewise.
* runtime/ofldend.cpp: Likewise.
* runtime/orsl-lite/include/orsl-lite.h: Likewise.
* runtime/orsl-lite/lib/orsl-lite.c: Likewise.
* runtime/use_mpss2.txt: Remove.
* include/coi/common/COIEngine_common.h: Merge from upstream, MPSS
version 3.7.1
<http://registrationcenter-download.intel.com/akdlm/irc_nas/9226/
mpss-3.7.1-linux.tar>.
* include/coi/common/COIEvent_common.h: Likewise.
* include/coi/common/COIMacros_common.h: Likewise.
* include/coi/common/COIPerf_common.h: Likewise.
* include/coi/common/COIResult_common.h: Likewise.
* include/coi/common/COISysInfo_common.h: Likewise.
* include/coi/common/COITypes_common.h: Likewise.
* include/coi/sink/COIBuffer_sink.h: Likewise.
* include/coi/sink/COIPipeline_sink.h: Likewise.
* include/coi/sink/COIProcess_sink.h: Likewise.
* include/coi/source/COIBuffer_source.h: Likewise.
* include/coi/source/COIEngine_source.h: Likewise.
* include/coi/source/COIEvent_source.h: Likewise.
* include/coi/source/COIPipeline_source.h: Likewise.
* include/coi/source/COIProcess_source.h: Likewise.
* include/myo/myo.h: Remove.
* include/myo/myoimpl.h: Remove.
* include/myo/myotypes.h: Remove.
* plugin/Makefile.am (AM_LDFLAGS): Remove -lmyo-service.
* plugin/Makefile.in: Regenerate.
* plugin/libgomp-plugin-intelmic.cpp (LD_LIBRARY_PATH_ENV): Remove.
(MIC_LD_LIBRARY_PATH_ENV): Remove.
(init): Do not set MIC_LD_LIBRARY_PATH.  Now liboffloadmic uses only
LD_LIBRARY_PATH.
* plugin/offload_target_main.cpp: Update copyright years.
* runtime/emulator/coi_common.h: Likewise.
* runtime/emulator/coi_device.cpp: Likewise.
* runtime/emulator/coi_device.h: Likewise.
* runtime/emulator/coi_host.cpp: Likewise.
(COIBufferCreate): Allow COI_BUFFER_OPENCL.
(COIEngineGetInfo): Return COI_DEVICE_KNL instead of COI_ISA_x86_64.
* runtime/emulator/coi_host.h: Update copyright years.
* runtime/emulator/coi_version_asm.h: Likewise.
* runtime/emulator/coi_version_linker_script.map: Likewise.
* runtime/emulator/myo_client.cpp: Remove.
* runtime/emulator/myo_service.cpp: Remove.
* runtime/emulator/myo_service.h: Remove.
* runtime/emulator/myo_version_asm.h: Remove.
* runtime/emulator/myo_version_linker_script.map: Remove.

From-SVN: r238603

re PR c++/71728 (ICE with goto in statement-expression inside a condition)

PR c++/71728
* constexpr.c (potential_constant_expression_1) <case GOTO_EXPR>:
Replace assert with test, return false if the goto isn't break
or continue.  Formatting fix.

* g++.dg/other/pr71728.C: New test.

From-SVN: r238601

Fix build of spellcheck-tree.c with older gccs

gcc/ChangeLog:
* spellcheck-tree.c (best_macro_match::best_macro_match):
Explictly specify the template arguments when invoking the base
class constructor, to help older C++ compilers.

From-SVN: r238598

re PR sanitizer/71953 (ICE using address sanitizers with PCH)

PR sanitizer/71953
* asan.c (asan_dynamic_init_call): Call asan_init_shadow_ptr_types
before builtin_decl_implicit.

From-SVN: r238596

[Patch 3/2 ifcvt costs] Don't expand a conditional move between identical sources

gcc/

* optabs.c (emit_condiitonal_move): Short circuit for identical
sources.

From-SVN: r238595

[Patch 2/2 ifcvt costs] Introduce a new cost model for ifcvt.

gcc/

* ifcvt.c (noce_if_info): New fields: speed_p, original_cost,
max_seq_cost.  Removed fields: then_cost, else_cost, branch_cost.
(noce_conversion_profitable_p): New.
(noce_try_store_flag_constants): Use it.
(noce_try_addcc): Likewise.
(noce_try_store_flag_mask): Likewise.
(noce_try_cmove): Likewise.
(noce_try_cmove_arith): Likewise.
(bb_valid_for_noce_process_p): Add to the cost parameter rather than
overwriting it.
(noce_convert_multiple_sets): Move cost model to here, from...
(bb_ok_for_noce_convert_multiple_sets) ...here.
(noce_process_if_block): Update calls for above changes.
(noce_find_if_block): Record new noce_if_info parameters.

gcc/testsuite/

* gcc.dg/ifcvt-2.c: Use parameter to guide if-conversion heuristics.
* gcc.dg/ifcvt-3.c: Use parameter to guide if-conversion heuristics.
* gcc.dg/pr68435.c: Use parameter to guide if-conversion heuristics.
* gcc.dg/ifcvt-4.c: Use parameter to guide if-conversion heuristics.
* gcc.dg/ifcvt-5.c: Use parameter to guide if-conversion heuristics.

From-SVN: r238594

[Patch 1/2 ifcvt costs] New target hook: max_noce_ifcvt_seq_cost

gcc/

* target.def (max_noce_ifcvt_seq_cost): New.
* doc/tm.texi.in (TARGET_MAX_NOCE_IFCVT_SEQ_COST): Document it.
* doc/tm.texi: Regenerate.
* targhooks.h (default_max_noce_ifcvt_seq_cost): New.
* targhooks.c (default_max_noce_ifcvt_seq_cost): New.
* params.def (PARAM_MAX_RTL_IF_CONVERSION_PREDICTABLE_COST): New.
(PARAM_MAX_RTL_IF_CONVERSION_UNPREDICTABLE_COST): Likewise.
* doc/invoke.texi: Document new params.

From-SVN: r238593

re PR tree-optimization/71947 (x ^ y not folded to 0 if x == y by DOM)

2016-07-21  Richard Biener  <rguenther@suse.de>

PR tree-optimization/71947
* tree-vrp.c (extract_range_from_assert): Singleton symbolic
ranges have useful limit_vr information.

* gcc.dg/tree-ssa/vrp102.c: New testcase.

From-SVN: r238591

Do not divide by zero in analyze_brprob.py

* analyze_brprob.py: If there's no loop, do not calculate
average number of loop iterations.

From-SVN: r238590

function-tests.c (build_trivial_generic_function): Set BLOCK_SUPERCONTEXT of DECL_INITIAL.

2016-07-21  Richard Biener  <rguenther@suse.de>

* function-tests.c (build_trivial_generic_function): Set
BLOCK_SUPERCONTEXT of DECL_INITIAL.
* omp-low.c (create_omp_child_function): Likewise.
(grid_expand_target_grid_body): Likewise.
* cgraphunit.c (init_lowered_empty_function): Likewise.
(cgraph_node::expand_thunk): Likewise.
* tree-parloops.c (create_loop_fn): Likewise.
* ipa.c (cgraph_build_static_cdtor_1): Likewise.

cp/
* vtable-class-hierarchy.c (vtv_generate_init_routine): Set
DECL_IGNORED_P.

java/
* jcf-parse.c (java_emit_static_constructor): Set
BLOCK_SUPERCONTEXT of DECL_INITIAL.

From-SVN: r238589

tree-ssa-strlen.c (strlen_dom_walker::before_dom_children): Fix typo in comment.

2016-07-21  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

* tree-ssa-strlen.c (strlen_dom_walker::before_dom_children): Fix typo
in comment.

From-SVN: r238588

Some patterns for moving one bit around by BST + BLD.

* config/avr/avr.md (any_extract, any_shiftrt): New code iterators.
(*insv.extract, *insv.shiftrt, *insv.not-bit.0, *insv.not-bit.7)
(*insv.xor-extract, *insv.xor1-bit.0): New insns.
(adjust_len) [insv_notbit, insv_notbit_0, insv_notbit_7]: New
values for insn attribute.
* config/avr/avr.c (avr_out_insert_notbit): New function.
(avr_adjust_insn_length): Handle ADJUST_LEN_INSV_NOTBIT,
ADJUST_LEN_INSV_NOTBIT_0/_7.
* config/avr/avr-protos.h (avr_out_insert_notbit): New proto.

From-SVN: r238587

tree-chrec.c (convert_affine_scev): New parameter.

* tree-chrec.c (convert_affine_scev): New parameter.  Pass new arg.
(chrec_convert_1, chrec_convert): Ditto.
* tree-chrec.h (chrec_convert, convert_affine_scev): New parameter.
* tree-scalar-evolution.c (interpret_rhs_expr): Pass new arg.
* tree-vrp.c (adjust_range_with_scev): Ditto.
* tree-ssa-loop-niter.c (idx_infer_loop_bounds): Ditto.
(scev_var_range_cant_overflow): New function.
(scev_probably_wraps_p): New parameter.  Call above function.
* tree-ssa-loop-niter.h (scev_probably_wraps_p): New parameter.

gcc/testsuite
* gcc.dg/tree-ssa/scev-15.c: New.

From-SVN: r238586

tree-ssa-loop-niter.c (number_of_iterations_lt_to_ne): Clean up by removing computation of may_be_zero.

* tree-ssa-loop-niter.c (number_of_iterations_lt_to_ne): Clean up
by removing computation of may_be_zero.

From-SVN: r238585

[ARM] Fix PR target/59833

For Aurelien Jarno <aurelien@aurel32.net>

On ARM soft-float, the float to double conversion doesn't convert a sNaN
to qNaN as the IEEE Std 754 standard mandates:

"Under default exception handling, any operation signaling an invalid
operation exception and for which a floating-point result is to be
delivered shall deliver a quiet NaN."

Given the soft float ARM code ignores exceptions and always provides a
result, a float to double conversion of a signaling NaN should return a
quiet NaN. Fix this in extendsfdf2.

gcc/ChangeLog:

PR target/59833
* config/arm/ieee754-df.S (extendsfdf2): Convert sNaN to qNaN.

gcc/testsuite/ChangeLog:

* gcc.dg/pr59833.c: New testcase.

From-SVN: r238584

vect-mask-store-move-1.c: XFAIL.

gcc/testsuite
* gcc.dg/vect/vect-mask-store-move-1.c: XFAIL.

From-SVN: r238583

* tree-object-size.c (unknown): Use HOST_WIDE_INT_M1U instead of -1.

From-SVN: r238581

re PR libgomp/71941 (ICE with OpenMP tasks and queue)

PR c++/71941
* cp-gimplify.c (cp_genericize): For nested cp_genericize calls
save/restore bc_label array.

* g++.dg/gomp/pr71941.C: New test.

From-SVN: r238579

PR c++/70781 - ICE on ill-formed lambda.

* parser.c (cp_parser_lambda_expression): Unset OK if there was an
error parsing the lambda-declarator.

From-SVN: r238563

PR c++/71896 - constexpr pointer-to-member comparison.

* constexpr.c (cxx_eval_binary_expression): Handle comparison
between lowered and unlowered PTRMEM_CST.

From-SVN: r238562

PR c++/70942 - generic lambda with auto&& parameter.

* g++.dg/cpp1y/lambda-generic-conv3.C: New.

From-SVN: r238561

PR c++/65168 - -Waddress in unevaluated context.

gcc/c-family/
* c-common.c (c_common_truthvalue_conversion): Check
c_inhibit_evaluation_warnings for warning about address of
reference.
gcc/cp/
* typeck.c (cp_truthvalue_conversion): Compare pointers to nullptr.
Don't set c_inhibit_evaluation_warnings.

From-SVN: r238560

PR c++/71121 - -Waddress, constexpr, and PMFs.

* cp-gimplify.c (cp_fully_fold): First call maybe_constant_value.

From-SVN: r238559

Improving concepts performance and diagnostics.

PR c++/67565
PR c++/67579
PR c++/71843
gcc/
* timevar.def (TV_CONSTRAINT_SAT, TV_CONSTRAINT_SUB): New time vars
for constraint satisfaction and subsumption.
* timevar.h (auto_timevar): New constructor that matches the push/pop
pattern of usage in pt.c.
gcc/cp/
* cp-tree.def (CHECK_CONSTR): New.
* cp-tree.h (CHECK_CONSTR_CONCEPT): New.
(CHECK_CONSTR_ARGS): New.
* constraint.cc (make_predicate_constraint): Remove in favor of
normalize_expression.
(resolve_constraint_check): Actually return error_mark_node when
resolution fails.
(resolve_variable_concept_check): Perform coercion as if processing
a template. Also return errors on resolution failure.
(lift_*): Remove all of these functions. Don't unnecessarily inline
concepts.
(learn_*): Add facilities to memoize implications for subsumption
during normalization.
(expanding_concept): New.
(expand_concept): New. Return the inlined and normalized definition
of a concept when needed.
(transform_*, xform_*): Rename to normalize_* to better reflect the
responsibility of those functions.
(normalize_template_id_expression): Check for non-boolean operands
when possible. Generate check constraints instead of normal variable
references.
(normalize_call_expression): Report errors when resolution fails.
(check_for_logical_overloads): Rewrite this check to more accurately
report the error.
(normalize_atom): Check for overloaded calls and invalid types before
determining if the expression refers to a concept.
(build_constraints): Don't cache normalized constraints or decmposed
assumptions.
(finish_shorthand_constraint): Return a normalized expression instead
of a predicate constraint.
(finish_template_introduction): Same.
(placeholder_extract_concept_and_args): Rewrite this since we only
ever get check constraints here.
(equivalent_placeholder_constraints): Rewrite in terms of check
constraints, and handle error_mark_nodes correctly.
(tsubst_check_constraint, tsubst_expr_constr, tsubst_type_constr)
(tsubst_implicit_conversion_constr)
(tsubst_argument_deduction_constr, tsubst_exception_constr)
(tsubst_parameterized_constraint, tsubst_constraint): New.
(tsbust_conjunection): Replace with tsubst_logical_operator and
actually generate the right kind of constraint.
(tsubst_requirement_body): Reverse the order of substituted arguments
so that they appear in the order written (helps diagnostics).
(satisfy_check_constraint): New.
(satisfy_conjunction): Simplify.
(satisfy_disjunction): Same.
(satisfy_constraint_1): Handle check constraints.
(eval_constr): New (private) global state.
(evaluating_constraints_sentinel): New. Manages eval_constr.
(satisfy_constraint): Add timing variables.
(satisfy_associated_constraints): Add hooks for memoization.
(evaluate_function_concept): Build a check constraint instead of
normalizing its definition.
(evaluate_variable_concept): Same.
(evaluate_constraint_expression): Normalize, but in the current
declaration processing context.
(evaluating_constraints_p): New.
(elide_constraint_failure_p): Actually emit constraint_thresh errors.
(diagnose_*): Remove artificial indentation. Add a new parameter to
each that tracks the current (complete) constraint prior to any
substitutions.
(diagnose_expression): Removed.
(diagnose_call_expression): Same.
(diagnose_template_id): Same.
(diagnose_template_id): New.
(diagnose_logical_constraint): New.
(diagnose_expression_constraint): Show the original expression.
(diagnose_type_constraint): Show the original type.
(diagnose_implicit_conversion_constraint): Be specific about
failures, don't re-diagnose a known-to-be-failed substitutions,
and manage elisions properly.
(diagnose_argument_deduction_constraint): Same.
(diagnose_exception_constraint): Same.
(diagnose_parameterized_constraint): Same.
(constraint_p): Allow EXPR_PACK_EXPANSION.
* logic.cc (next_by_distance): Removed. No longer used.
(any_p): Renamed from any_of.
(term_entry, term_hasher): New.
(term_list): Rewrite to include a hash table for quick lookup.
Also, make less stateful.
(proof_state): Extend to allow goals to be discharged once
satisfied.
(non_atomic_constraint_p): New.
(any_non_atomic_constraints_p): New.
(...rest...): Previous implementation completely replaced with an
iterative algorithm that opportunistically prunes the search space
before committing to using more memory.
* parser.c: (cp_parser_type_parameter): Normalize constraints.
(cp_parser_explicit_template_declaration): Same.
* pt.c: (finish_template_variable): Be less redundant with this error
message.
(template_args_equal): No longer static.
(tsubst_decl): Don't try to find specializations of variables that
have already been instantiated.
(build_non_dependent_expr): Avoid infinite recursion during concept
expansion.
(make_constrained_auto): Normalize constraints.
(do_auto_deduction): When doing auto deduction from a
partial-concept-id, be sure to include the explicit args checking
the constraints.
(constraint_sat_*): New. Memoize satisfied constraints.
(concept_spec_*): New. Memoize expressions associated with a concept
specialization.
(constraint_memos, concept_memos): New.
(lookup_constraint_satisfaction, memoize_constraint_satisfaction): New.
(lookup_concept_satisfaction, memoize_concept_satisfaction): New.
(get_concept_expansion, save_concept_expansion): New.
(hash_subsumption_args): New.
(comp_subsumption_args): New.
(subsumption_*): New. Memoize parts of the subsumption relation.
(lookup_subsumption_result, save_subsumption_result): New.
(init_constraint_processing): Initialize memo tables.
(get_constraints): Shortcut if !flag_concepts.
* decl.c (grokfndecl): Normalize constraints.
* error.c (dump_simple_decl): Print "concept" when appropriate.
(dump_function_decl): Same.
(dump_template_decl): Don't write requirements when we're not
printing the header.
(dump_expr): Handle fold expressions.
* cxx-pretty-print.c (cxx_pretty_printer::expression): Handle
fold expressions.
(get_fold_operator): New.
(pp_cxx_unary_left_fold_expression): New.
(pp_cxx_unary_right_fold_expression): New.
(pp_cxx_binary_fold_expression): New.
(pp_cxx_check_constraint): New.
(pp_cxx_*_constraint): Rewrite the grammar of internal constraints
to make them easier to read when debugging.
* search.c (accessible_p): Don't shortcut when evaluating constraints.
* tree.c (cp_tree_equal): Handle CHECK_CONSTR.

Co-Authored-By: Jason Merrill <jason@redhat.com>
From-SVN: r238558

Daily bump.

From-SVN: r238557

hwint.h (HOST_WIDE_INT_0): New define.

* hwint.h (HOST_WIDE_INT_0): New define.
(HOST_WIDE_INT_0U): Ditto.
* double-int.c: Use HOST_WIDE_INT_0 instead of (HOST_WIDE_INT) 0.
* dse.c: Use HOST_WIDE_INT_0U instead of (unsigned HOST_WIDE_INT) 0.
* simplify-rtx.c: Ditto.
* tree-object-size.c: Ditto.

From-SVN: r238545

C++ FE: handle misspelled identifiers and typenames

gcc/cp/ChangeLog:
PR c/70339
PR c/71858
* name-lookup.c: Include gcc-rich-location.h, spellcheck-tree.h,
and parser.h.
(suggest_alternatives_for): If no candidates are found, try
lookup_name_fuzzy and report if if finds a suggestion.
(consider_binding_level): New function.
(lookup_name_fuzzy) New function.
* parser.c: Include gcc-rich-location.h.
(cp_lexer_next_token_is_decl_specifier_keyword): Move most of
logic into...
(cp_keyword_starts_decl_specifier_p): ...this new function.
(cp_parser_diagnose_invalid_type_name): When issuing
"does not name a type" errors, attempt to make a suggestion using
lookup_name_fuzzy.
* parser.h (cp_keyword_starts_decl_specifier_p): New prototype.
* search.c (lookup_field_fuzzy_info::fuzzy_lookup_field): Reject
types that are not CLASS_TYPE_P, rather than rejecting individual
tree codes.

gcc/testsuite/ChangeLog:
PR c/70339
PR c/71858
* g++.dg/spellcheck-identifiers.C: New test case, based on
gcc.dg/spellcheck-identifiers.c.
* g++.dg/spellcheck-identifiers-2.C: New test case, based on
gcc.dg/spellcheck-identifiers-2.c.
* g++.dg/spellcheck-typenames.C: New test case, based on
gcc.dg/spellcheck-typenames.c

From-SVN: r238538

S/390: Remove mode size check in encode_section_info.

With the last change the not-aligned symbol ref markers are always set
for modes with size zero.  This is wrong since for larl the size of
the access does not matter.  This patch removes that check entirely
from s390_encode_section_info.  Modes with a size of 0 get rejected in
s390_check_symref_alignment which is used for the load/store relative
instructions to check for natural alignment.

Bootstrapped and regression tested on s390 and s390x with
--with-arch=z900 and --with-arch=z13.

gcc/ChangeLog:

2016-07-20  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* config/s390/s390.c (s390_encode_section_info): Remove mode size
check.

From-SVN: r238536

Document LWG DR 2684 status and regenerate libstdc++ manual

* doc/xml/manual/intro.xml: Document DR 2684 status.
* doc/html/*: Regenerate.

From-SVN: r238535

LWG 2441 Provide exact-width atomic typedefs

* include/std/atomic (atomic_int8_t, atomic_uint8_t, atomic_int16_t)
(atomic_uint16_t, atomic_int32_t, atomic_uint32_t, atomic_int64_t)
(atomic_uint64_t): Define (LWG 2441).
* testsuite/29_atomics/headers/atomic/std_c++0x_neg.cc: Remove empty
lines.
* testsuite/29_atomics/headers/atomic/types_std_c++0x.cc: Test for
the new types.
* doc/xml/manual/intro.xml: Document DR 2441 status.

From-SVN: r238534

LWG 2328 Rvalue stream extraction should use perfect forwarding

* include/std/istream (operator>>(basic_istream&&, _Tp&)): Adjust
to use perfect forwarding (LWG 2328).
* testsuite/27_io/rvalue_streams.cc: Test perfect forwarding.
* doc/xml/manual/intro.xml: Document DR 2328 status.

From-SVN: r238533

Use static pointer to member when catching nullptr

libstdc++-v3:

* libsupc++/pbase_type_info.cc (__pbase_type_info::__do_catch): Use
static objects for catching nullptr as pointer to member types.

gcc/testsuite:

* g++.dg/cpp0x/nullptr35.C: Change expected result for catching as
pointer to member function and also test catching by reference.

From-SVN: r238532

S/390: Fix pr67443.c.

The attached patch rewrites the pr67443.c testcase in a different way
so that the test still works with the changed allocation of globals
pinned to registers.  The test ist hopefully more robust now.

gcc/testsuite/ChangeLog:

2016-07-20  Dominik Vogt  <vogt@linux.vnet.ibm.com>

* gcc.target/s390/pr67443.c: Fix test case.

From-SVN: r238531

S/390: Xfail some tests in insv-[12].c.

The attached patch XFAILs some of the "insv" testcases as
discussed internally.  Tested on s390x biarch and s390.

gcc/testsuite/ChangeLog:

2016-07-20  Dominik Vogt  <vogt@linux.vnet.ibm.com>

* gcc.target/s390/insv-1.c: Xfail some tests.
* gcc.target/s390/insv-2.c: Likewise.

From-SVN: r238530

cse.c: Use HOST_WIDE_INT_M1 instead of ~(HOST_WIDE_INT) 0.

* cse.c: Use HOST_WIDE_INT_M1 instead of ~(HOST_WIDE_INT) 0.
* combine.c: Use HOST_WIDE_INT_M1U instead of
~(unsigned HOST_WIDE_INT) 0.
* double-int.h: Ditto.
* dse.c: Ditto.
* dwarf2asm.c:Ditto.
* expmed.c: Ditto.
* genmodes.c: Ditto.
* match.pd: Ditto.
* read-rtl.c: Ditto.
* tree-ssa-loop-ivopts.c: Ditto.
* tree-ssa-loop-prefetch.c: Ditto.
* tree-vect-generic.c: Ditto.
* tree-vect-patterns.c: Ditto.
* tree.c: Ditto.

From-SVN: r238529

avr.c (avr_legitimize_address): Force constant addresses outside [0,0xc0] into a register.

gcc/
* gcc/config/avr.c (avr_legitimize_address) [AVR_TINY]: Force
constant addresses outside [0,0xc0] into a register.
(avr_out_movhi_r_mr_reg_no_disp_tiny): Pass insn.  And handle
cases where the base address register is unused after.
(avr_out_movhi_r_mr_reg_disp_tiny): Same.
(avr_out_movhi_mr_r_reg_disp_tiny): Same.
(avr_out_store_psi_reg_disp_tiny): Same.

gcc/testsuite/
* gcc.target/avr/torture/get-mem.c: New test.
* gcc.target/avr/torture/set-mem.c: New test.

From-SVN: r238528

Implement attribute progmem on reduced Tiny cores by adding flash offset 0x4000 to respective symbols.

gcc/
Implement attribute progmem on reduced Tiny cores by adding
flash offset 0x4000 to respective symbols.

PR target/71948
* doc/extend.texi (AVR Variable Attributes) [progmem]: Add
documentation how it works on reduced Tiny cores.
(AVR Named Address Spaces): No support for reduced Tiny.
* config/avr/avr.c (AVR_SYMBOL_FLAG_TINY_PM): New macro.
(avr_address_tiny_pm_p): New static function.
(avr_print_operand_address) [AVR_TINY]: Add AVR_TINY_PM_OFFSET
if the address is in progmem.
(avr_assemble_integer): Same.
(avr_encode_section_info) [AVR_TINY]: Set AVR_SYMBOL_FLAG_TINY_PM
for symbol_ref in progmem.
* config/avr/avr.h (AVR_TINY_PM_OFFSET): New macro.
* config/avr/avr-c.c (avr_cpu_cpp_builtins): Use it instead of
magic 0x4000 when built-in def'ing __AVR_TINY_PM_BASE_ADDRESS__.
gcc/testsuite/
PR target/71948
* gcc.target/avr/torture/tiny-progmem.c: New test.

From-SVN: r238525

Build libbackend.a as a thin archive if possible

gcc/ChangeLog:

* configure.ac (thin_archive_support): New variable.  AC_SUBST it.
* configure: Regenerate.
* Makefile.in (THIN_ARCHIVE_SUPPORT): New variable.
(USE_THIN_ARCHIVES): New variable.
(libbackend.a): If USE_THIN_ARCHIVES then pass T to ar to build
this archive as a thin archive.

From-SVN: r238524

Enabling work for C++ handling of misspelled identifiers and typenames

gcc/c/ChangeLog:
* c-decl.c (struct edit_distance_traits<cpp_hashnode *>): Move to
spellcheck-tree.h
(best_macro_match): Likewise, converting from a typedef to a
subclass.
(find_closest_macro_cpp_cb): Move to spellcheck-tree.c.
(lookup_name_fuzzy): Update for change of best_macro_match to a
subclass with a ctor that calls cpp_forall_identifiers.

gcc/ChangeLog:
* diagnostic-show-locus.c (diagnostic_show_locus): If this is the
same location as last time, don't skip if we have fix-it hints.
Clarify the skipping logic by converting it from one "if" clause
to repeated "if" clauses.
* spellcheck-tree.c: Include "cpplib.h".
(find_closest_macro_cpp_cb): Move here from c/c-decl.c.
(best_macro_match::best_macro_match): New constructor.
* spellcheck-tree.h (struct edit_distance_traits<cpp_hashnode *>):
Move here from c/c-decl.c.
(class best_macro_match): Move here from c/c-decl.c, converting
from a typedef to a subclass, gaining a ctor.

From-SVN: r238522

re PR c++/71909 (g++ accepts an unreachable function catch block that lacks a corresponding try)

PR c++/71909
* parser.c (cp_parser_save_member_function_body): Consume
__transaction_relaxed or __transaction_atomic with optional
attribute.  Only skip catch with block if try keyword is seen.

* g++.dg/parse/pr71909.C: New test.
* g++.dg/tm/pr71909.C: New test.

From-SVN: r238521

re PR middle-end/50060 (intrinsics not folded by the middle-end)

PR c++/50060
* constexpr.c (cxx_eval_builtin_function_call): Pass false as lval
when evaluating call arguments.  Use fold_builtin_call_array instead
of fold_build_call_array_loc, return t if it returns NULL.  Otherwise
check the result with potential_constant_expression and call
cxx_eval_constant_expression on it.

* g++.dg/cpp0x/constexpr-50060.C: New test.
* g++.dg/cpp1y/constexpr-50060.C: New test.

From-SVN: r238520

avr-protos.h (avr_addr_space_supported_p): New prototype.

gcc/
* config/avr/avr-protos.h (avr_addr_space_supported_p): New prototype.
* config/avr/avr.c (TARGET_ADDR_SPACE_DIAGNOSE_USAGE): New hook
define...
(avr_addr_space_diagnose_usage): ...and implementation.
(avr_addr_space_supported_p): New function.
(avr_nonconst_pointer_addrspace, avr_pgm_check_var_decl): Only
report bad address space usage if that space is supported.
(avr_insert_attributes): Same.  No more complain about unsupported
address spaces.
* config/avr/avr-c.c (tm_p.h): Include it.
(avr_cpu_cpp_builtins): Only define addr-space related built-in
macro if avr_addr_space_supported_p.

From-SVN: r238519

nvptx: do not implicitly enable -ftoplevel-reorder

* config/nvptx/nvptx.c (nvptx_option_override): Do not set
flag_toplevel_reorder.

From-SVN: r238518

C: convert return type of lookup_name_fuzzy from tree to const char *

gcc/c-family/ChangeLog:
* c-common.h (lookup_name_fuzzy): Convert return type from tree to
const char *.

gcc/c/ChangeLog:
* c-decl.c (implicit_decl_warning): Update for conversion of
return type of lookup_name_fuzzy to const char *.
(undeclared_variable): Likewise.
(lookup_name_fuzzy): Convert return type from tree to
const char *.
* c-parser.c (c_parser_declaration_or_fndef): Update for
conversion of return type of lookup_name_fuzzy to const char *.
(c_parser_parameter_declaration): Likewise.

gcc/ChangeLog:
* gcc-rich-location.c
(gcc_rich_location::add_fixit_misspelled_id): New overload, taking
a const char *.
* gcc-rich-location.h
(gcc_rich_location::add_fixit_misspelled_id): Likewise.

From-SVN: r238517

target.def (addr_space): Add new diagnose_usage to hook vector.

gcc/
* target.def (addr_space): Add new diagnose_usage to hook vector.
* targhooks.c (default_addr_space_diagnose_usage): Add default
implementation and...
* targhooks.h (default_addr_space_diagnose_usage): ... its prototype.
* c/c-parser.c (c_lex_one_token) [CPP_NAME]: If the token
is some address space, call targetm.addr_space.diagnose_usage.
* doc/tm.texi.in (Named Address Spaces): Add anchor for
TARGET_ADDR_SPACE_DIAGNOSE_USAGE documentation.
* doc/tm.texi: Regenerate.

From-SVN: r238514

Properly handly PHI stmts in later_of_the_two (PR

PR middle-end/71898
* graphite-isl-ast-to-gimple.c (later_of_the_two):
Properly handly PHI stmts.
* gfortran.dg/graphite/pr71898.f90: New test.

From-SVN: r238513

re PR tree-optimization/71503 (gcc ICE at -O3 on valid code on x86_64-linux-gnu in "gen_phi_arg_condition")

PR tree-optimization/71503
PR tree-optimization/71683
* tree-if-conv.c (gen_phi_arg_condition): Record true predicate
and break.

gcc/testsuite
PR tree-optimization/71503
PR tree-optimization/71683
* gcc.dg/tree-ssa/ifc-pr71503.c: New test.
* gcc.dg/tree-ssa/ifc-pr71683.c: New test.

From-SVN: r238512

configure.ac (nds32*-*-*): Remove entry to enable gdb.

    * configure.ac (nds32*-*-*): Remove entry to enable gdb.
    * configure: Regenerated.

From-SVN: r238511

Enhance documentation of -fipa-ra option.

* doc/invoke.texi (-fipa-ra): Document when the option is
disabled. Fix a typo.

From-SVN: r238510

Add selftests for fibonacci_heap

* Makefile.in: Include fibonacci_heap.c
* fibonacci_heap.c: New file.
* fibonacci_heap.h (fibonacci_heap::insert): Use insert_node.
(fibonacci_heap::union_with): Fix deletion of the second heap.
* selftest-run-tests.c (selftest::run_tests): Incorporate
fibonacci heap tests.
* selftest.h: Declare fibonacci_heap_c_tests.

From-SVN: r238509

Add sreal to selftests

* selftest-run-tests.c (selftest::run_tests): New function.
* selftest.h (sreal_c_tests): Declare.
* sreal.c (sreal_verify_basics): New function.
(verify_aritmetics): Likewise.
(sreal_verify_arithmetics): Likewise.
(verify_shifting): Likewise.
(sreal_verify_shifting): Likewise.
(void sreal_c_tests): Likewise.
* gcc.dg/plugin/plugin.exp: Remove sreal test.
* gcc.dg/plugin/sreal-test-1.c: Remove.
* gcc.dg/plugin/sreal_plugin.c: Remove.

From-SVN: r238508

PR c++/67164 - clean up dead code

* pt.c (iterative_hash_template_arg, template_args_equal): Don't
handle ARGUMENT_PACK_SELECT.

From-SVN: r238507

Daily bump.

From-SVN: r238506

re PR fortran/71902 (Unneeded temporary on reallocatable character assignment)

2016-07-19  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/71902
* dependency.c (gfc_check_dependency): Use dep_ref.  Handle case
if identical is true and two array element references differ.
(gfc_dep_resovler):  Move most of the code to dep_ref.
(dep_ref):  New function.
* frontend-passes.c (realloc_string_callback):  Name temporary
variable "realloc_string".

2016-07-19  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/71902
* gfortran.dg/dependency_47.f90:  New test.

From-SVN: r238497

re PR rtl-optimization/71916 (ICE at -O3 on valid code on x86_64-linux-gnu in "maybe_record_trace_start")

PR rtl-optimization/71916
* cfgrtl.c (contains_no_active_insn_p): Return false also for
bb which have a single succ fake edge.

* gcc.c-torture/compile/pr71916.c: New test.

From-SVN: r238490

re PR debug/71855 (duplicate unspecified_parameters DIE in DWARF for functions with variable arguments)

PR debug/71855
* dwarf2out.c (gen_subprogram_die): Only call
gen_unspecified_parameters_die while dumping early dwarf.

From-SVN: r238488

re PR middle-end/71874 (memmove works wrong)

PR middle-end/71874
* gimple-fold.c (fold_builtin_memory_op): Use
get_addr_base_and_unit_offset instead of get_ref_base_and_extent.

* g++.dg/torture/pr71874.C: New test.

From-SVN: r238484

re PR middle-end/71734 (FAIL: libgomp.fortran/simd4.f90   -O3 -g  execution test)

PR middle-end/71734
* g++.dg/vect/pr70729.cc: Don't include string.h or xmmintrin.h.
(my_alloc): Rewritten to use __builtin_posix_memalign and
__SIZE_TYPE__.
(my_free): Use __builtin_free instead of _mm_free.
(Vec::operator=): Use __builtin_memcpy.

From-SVN: r238482

builtins.c: Use HOST_WIDE_INT_1 instead of (HOST_WIDE_INT) 1...

* builtins.c: Use HOST_WIDE_INT_1 instead of (HOST_WIDE_INT) 1,
HOST_WIDE_INT_1U instead of (unsigned HOST_WIDE_INT) 1,
HOST_WIDE_INT_M1 instead of (HOST_WIDE_INT) -1 and
HOST_WIDE_INT_M1U instead of (unsigned HOST_WIDE_INT) -1.
* combine.c: Ditto.
* cse.c: Ditto.
* dojump.c: Ditto.
* double-int.c: Ditto.
* dse.c: Ditto.
* dwarf2out.c: Ditto.
* expmed.c: Ditto.
* expr.c: Ditto.
* fold-const.c: Ditto.
* function.c: Ditto.
* fwprop.c: Ditto.
* genmodes.c: Ditto.
* hwint.c: Ditto.
* hwint.h: Ditto.
* ifcvt.c: Ditto.
* loop-doloop.c: Ditto.
* loop-invariant.c: Ditto.
* loop-iv.c: Ditto.
* match.pd: Ditto.
* optabs.c: Ditto.
* real.c: Ditto.
* reload.c: Ditto.
* rtlanal.c: Ditto.
* simplify-rtx.c: Ditto.
* stor-layout.c: Ditto.
* toplev.c: Ditto.
* tree-ssa-loop-ivopts.c: Ditto.
* tree-vect-generic.c: Ditto.
* tree-vect-patterns.c: Ditto.
* tree.c: Ditto.
* tree.h: Ditto.
* ubsan.c: Ditto.
* varasm.c: Ditto.
* wide-int-print.cc: Ditto.
* wide-int.cc: Ditto.
* wide-int.h: Ditto.

From-SVN: r238481

selftest.c: gracefully handle NULL in assert_streq

gcc/ChangeLog:
* selftest.c (selftest::assert_streq): Handle NULL values of
val_actual and val_expected.

From-SVN: r238479

config.host (m32r): Add m32r/t-m32r to tmake_file.

* config.host (m32r): Add m32r/t-m32r to tmake_file.
Add crtinit.o and crtfini.o to extra_parts.

From-SVN: r238478

re PR fortran/71688 (ICE in analyze, at cgraphunit.c:632 with -fcoarray=lib)

Fix PR fortran/71688

2016-07-19  Martin Jambor  <mjambor@suse.cz>

        PR fortran/71688
        * trans-decl.c (gfc_generate_function_code): Use cgraph_get_create_node
        rather than cgraph_create_node to get a call graph node.

testsuite/
        gfortran.dg/pr71688.f90: New test.

From-SVN: r238476

gimple-fold.c (get_base_constructor): Add VIEW_CONVERT case, handle all tcc_constant bases and valueize SSA names.

2016-07-19  Richard Biener  <rguenther@suse.de>

* gimple-fold.c (get_base_constructor): Add VIEW_CONVERT case,
handle all tcc_constant bases and valueize SSA names.
* tree-ssa-sccvn.c (fully_constant_vn_reference_p): Handle
tcc_constant bases.

* c-c++-common/vector-subscript-6.c: New testcase.
* c-c++-common/vector-subscript-7.c: Likewise.

From-SVN: r238475

Fix failing test for targets with sizeof(int) != 4.

gcc/testsuite/

2016-07-19  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

* gcc.dg/params/blocksort-part.c: Conditionally define Int32
and UInt32 based on __SIZEOF_INT__.

From-SVN: r238471

Fix copy&paste bug in function-tests.c

gcc/ChangeLog:
* function-tests.c (selftest::verify_three_block_rtl_cfg): Verify
the flags of the exit block and bb2, not just the entry block.

From-SVN: r238470

MAINTAINERS (Write After Approval): Add myself.

2016-07-19  Fritz Reese  <fritzoreese@gmail.com>

* MAINTAINERS (Write After Approval): Add myself.

From-SVN: r238469

re PR tree-optimization/71901 (ice in find_or_generate_expression)

2016-07-19  Richard Biener  <rguenther@suse.de>

PR tree-optimization/71901
* tree-ssa-sccvn.h (struct vn_reference_op_struct): Add
align member, group stuff with the bitfield.
(vn_ref_op_align_unit): New inline.
* tree-ssa-sccvn.c (copy_reference_ops_from_ref): For ARRAY_REFs
record element alignment and operand 3 unchanged.
(ao_ref_init_from_vn_reference): Adjust.
(valueize_refs_1): Likewise.
* tree-ssa-pre.c (create_component_ref_by_pieces_1): Likewise.

* gcc.dg/torture/pr71901.c: New testcase.

From-SVN: r238468

re PR tree-optimization/71908 (ICE at -Os and above in both 32-bit and 64-bit modes on x86_64-linux-gnu (get_constraint_for_component_ref))

2016-07-18  Richard Biener  <rguenther@suse.de>

PR tree-optimization/71908
* tree-ssa-structalias.c (get_constraint_for_component_ref): Handle
symbolic constants in a more reliable way.

* gcc.dg/torture/pr71908.c: New testcase.

From-SVN: r238467

tree-vect-loop-manip.c (vect_update_ivs_after_vectorizer): Update comment.

gcc/

* tree-vect-loop-manip.c (vect_update_ivs_after_vectorizer): Update
comment.
(vect_update_inits_of_drs): Likewise.
(vect_create_cond_for_alias_checks): Likewise.
* tree-vect-loop.c (vect_get_known_peeling_cost): Likewise.

From-SVN: r238466

re PR middle-end/71907 (missing buffer overflow warnings with -flto)

2016-07-19  Richard Biener  <rguenther@suse.de>

PR lto/71907
* lto-streamer-out.c (DFS::DFS_write_tree_body): For blocks
with an abstract origin that is not an inlined function outer
scope add a self-reference as abstract origin.
* tree-streamer-out.c (write_ts_block_tree_pointers): Likewise.

From-SVN: r238456

re PR target/71493 (accidental ABI change for structure return on PowerPC)

[gcc]
2016-07-18  Michael Meissner  <meissner@linux.vnet.ibm.com>

PR target/71493
* config/rs6000/rs6000.c (rs6000_function_value): Fix
unintentional System V.4 structure return breakage for structures
with a single floating point element.

[gcc/testsuite]
2016-07-18  Michael Meissner  <meissner@linux.vnet.ibm.com>

PR target/71493
* gcc.target/powerpc/pr71493-1.c: New test.
* gcc.target/powerpc/pr71493-2.c: Likewise.

From-SVN: r238454

Daily bump.

From-SVN: r238453

re PR c++/70869 (internal compiler error: Segmentation fault on array of pointer to function members)

PR c++/70869
PR c++/71054
* cp-gimplify.c (cp_genericize_r): Revert the 2016-07-07 change.
* tree.c (cp_walk_subtrees): For DECL_EXPR on DECL_ARTIFICIAL
non-static VAR_DECL, walk the decl's DECL_INITIAL, DECL_SIZE and
DECL_SIZE_UNIT.

From-SVN: r238444

re PR c++/71835 (ICE on invalid C++ code with ambiguous overloaded operators: tree check: expected tree that contains ‘decl minimal’ structure, have ‘pointer_type’ in convert_like_real, at cp/call.c:6549)

PR c++/71835
* call.c (build_op_call_1): Use convert_like_with_context only
if cand->fn is a decl.

* g++.dg/conversion/ambig3.C: New test.

From-SVN: r238443

re PR c++/71828 (ICE on valid C++11 code with constexpr __Complex int variable declaration: in operand_equal_p, at fold-const.c:2790)

PR c++/71828
* constexpr.c (cxx_eval_constant_expression) <case REALPART_EXPR>:
For lval don't use cxx_eval_unary_expression and instead recurse
and if needed rebuild the reference.

* g++.dg/cpp0x/constexpr-71828.C: New test.

From-SVN: r238442

re PR c++/71826 (ICE on valid C++ code with ambiguous member lookup: tree check: expected baselink, have error_mark in tsubst_baselink, at cp/pt.c:13737)

PR c++/71826
* pt.c (tsubst_baselink): Only set BASELINK_OPTYPE for BASELINK_P.

* g++.dg/template/pr71826.C: New test.

From-SVN: r238441

re PR c++/71822 (ICE: in gimplify_expr, at gimplify.c:11025)

PR c++/71822
* cp-gimplify.c (cp_gimplify_expr) <case VEC_INIT_EXPR>: Recursively
fold *expr_p before genericizing it.

* g++.dg/template/defarg21.C: New test.

From-SVN: r238440

re PR c++/71871 (ICE on mixing templates and vector extensions ternary operator)

PR c++/71871
* typeck.c (build_x_conditional_expr): Revert the 2012-10-25 change.

* g++.dg/ext/vector31.C: New test.

From-SVN: r238439

pr70017.c: Do not check for warning on alpha*-*-*.

* gcc.dg/pr70017.c: Do not check for warning on alpha*-*-*.

From-SVN: r238438

Demangle C++17 fold-expressions.

* cp-demangle.c (cplus_demangle_operators): Add f[lrLR].
(d_expression_1): Handle them.
(d_maybe_print_fold_expression): New.
(d_print_comp_inner): Use it.
(d_index_template_argument): Handle negative index.

From-SVN: r238437

Clean up optional's comments.

From-SVN: r238436

re PR middle-end/71734 (FAIL: libgomp.fortran/simd4.f90   -O3 -g  execution test)

gcc/

2016-07-18  Yuri Rumyantsev  <ysrumyan@gmail.com>

PR tree-optimization/71734
* tree-ssa-loop-im.c (ref_indep_loop_p_1): Add REF_LOOP argument which
contains REF, use it to check safelen, assume that safelen value
must be greater 1, fix style.
(ref_indep_loop_p_2): Add REF_LOOP argument.
(ref_indep_loop_p): Pass LOOP as additional argument to
ref_indep_loop_p_2.

gcc/testsuite/

2016-07-18  Yuri Rumyantsev  <ysrumyan@gmail.com>

PR tree-optimization/71734
* g++.dg/vect/pr70729.cc: Delete redundant dg options, fix style.

From-SVN: r238435

Allocate constant size dynamic stack space in the prologue

The attached patch fixes a warning during Linux kernel compilation
on S/390 due to -mwarn-dynamicstack and runtime alignment of stack
variables with constant size causing cfun->calls_alloca to be set
(even if alloca is not used at all).  The patched code places
constant size runtime aligned variables in the "virtual stack
vars" area instead of creating a "virtual stack dynamic" area.

This behaviour is activated by defining

  #define ALLOCATE_DYNAMIC_STACK_SPACE_IN_PROLOGUE 1

in the backend; otherwise the old logic is used.

The kernel uses runtime alignment for the page structure (aligned
to 16 bytes), and apart from triggereing the alloca warning
(-mwarn-dynamicstack), the current Gcc also generates inefficient
code like

  aghi %r15,-160  # prologue: create stack frame
    lgr %r11,%r15   # prologue: generate frame pointer
      aghi %r15,-32   # space for dynamic stack

which could be simplified to

  aghi %r15,-192

(if later optimization passes are able to get rid of the frame
pointer).  Is there a specific reason why the patched behaviour
shouldn't be used for all platforms?

--

As the placement of runtime aligned stack variables with constant
size is done completely in the middleend, I don't see a way to fix
this in the backend.

gcc/ChangeLog:

2016-07-18  Dominik Vogt  <vogt@linux.vnet.ibm.com>

* cfgexpand.c (expand_stack_vars): Implement synamic stack space
allocation in the prologue.
* explow.c (get_dynamic_stack_base): New function to return an address
expression for the dynamic stack base.
(get_dynamic_stack_size): New function to do the required dynamic stack
space size calculations.
(allocate_dynamic_stack_space): Use new functions.
(align_dynamic_address): Move some code from
allocate_dynamic_stack_space to new function.
* explow.h (get_dynamic_stack_base, get_dynamic_stack_size): Export.

gcc/testsuite/ChangeLog:

2016-07-18  Dominik Vogt  <vogt@linux.vnet.ibm.com>

* gcc.target/s390/warn-dynamicstack-1.c: New test.
* gcc.dg/stack-usage-2.c (foo3): Adapt expected warning.
stack-layout-dynamic-1.c: New test.

From-SVN: r238432