[13/46] Make STMT_VINFO_RELATED_STMT a stmt_vec_info

This patch changes STMT_VINFO_RELATED_STMT from a gimple stmt to a
stmt_vec_info.

2018-07-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vectorizer.h (_stmt_vec_info::related_stmt): Change from
a gimple stmt to a stmt_vec_info.
(is_pattern_stmt_p): Update accordingly.
* tree-vect-data-refs.c (vect_preserves_scalar_order_p): Likewise.
(vect_record_grouped_load_vectors): Likewise.
* tree-vect-loop.c (vect_determine_vf_for_stmt): Likewise.
(vect_fixup_reduc_chain, vect_update_vf_for_slp): Likewise.
(vect_model_reduction_cost): Likewise.
(vect_create_epilog_for_reduction): Likewise.
(vectorizable_reduction, vectorizable_induction): Likewise.
* tree-vect-patterns.c (vect_init_pattern_stmt): Likewise.
Return the stmt_vec_info for the pattern statement.
(vect_set_pattern_stmt): Update use of STMT_VINFO_RELATED_STMT.
(vect_split_statement, vect_mark_pattern_stmts): Likewise.
* tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Likewise.
(vect_detect_hybrid_slp, vect_get_slp_defs): Likewise.
* tree-vect-stmts.c (vect_mark_relevant): Likewise.
(vect_get_vec_def_for_operand_1, vectorizable_call): Likewise.
(vectorizable_simd_clone_call, vect_analyze_stmt, new_stmt_vec_info)
(free_stmt_vec_info, vect_is_simple_use): Likewise.

From-SVN: r263128

[12/46] Make vect_finish_stmt_generation return a stmt_vec_info

This patch makes vect_finish_replace_stmt and vect_finish_stmt_generation
return the stmt_vec_info for the vectorised statement, so that the caller
doesn't need a separate vinfo_for_stmt to get at it.

This involved changing the structure of the statement-generating loops
so that they use narrow scopes for the vectorised gimple statements
and use the existing (wider) scopes for the associated stmt_vec_infos.
This helps with gimple stmt->stmt_vec_info changes further down the line.

The way we do this generation is another area ripe for clean-up,
but that's too much of a rabbit-hole for this series.

2018-07-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vectorizer.h (vect_finish_replace_stmt): Return a stmt_vec_info
(vect_finish_stmt_generation): Likewise.
* tree-vect-stmts.c (vect_finish_stmt_generation_1): Likewise.
(vect_finish_replace_stmt, vect_finish_stmt_generation): Likewise.
(vect_build_gather_load_calls): Use the return value of the above
functions instead of a separate call to vinfo_for_stmt.  Use narrow
scopes for the input gimple stmt and wider scopes for the associated
stmt_vec_info.  Use vec_info::lookup_def when setting these
stmt_vec_infos from an SSA_NAME definition.
(vectorizable_bswap, vectorizable_call, vectorizable_simd_clone_call)
(vect_create_vectorized_demotion_stmts, vectorizable_conversion)
(vectorizable_assignment, vectorizable_shift, vectorizable_operation)
(vectorizable_store, vectorizable_load, vectorizable_condition)
(vectorizable_comparison): Likewise.
* tree-vect-loop.c (vectorize_fold_left_reduction): Likewise.
(vectorizable_reduction): Likewise.

From-SVN: r263127

[11/46] Pass back a stmt_vec_info from vect_is_simple_use

This patch makes vect_is_simple_use pass back a stmt_vec_info to
those callers that want it.  Most users only need the stmt_vec_info
but some need the gimple stmt too.

It's probably high time we added a class to represent "simple operands"
instead, but I have a separate series that tries to clean up how
operands are handled (with a view to allowing mixed vector sizes).

2018-07-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vectorizer.h (vect_is_simple_use): Add an optional
stmt_vec_info * parameter before the optional gimple **.
* tree-vect-stmts.c (vect_is_simple_use): Likewise.
(process_use, vect_get_vec_def_for_operand_1): Update callers.
(vect_get_vec_def_for_operand, vectorizable_shift): Likewise.
* tree-vect-loop.c (vectorizable_reduction): Likewise.
(vectorizable_live_operation): Likewise.
* tree-vect-patterns.c (type_conversion_p): Likewise.
(vect_look_through_possible_promotion): Likewise.
(vect_recog_rotate_pattern): Likewise.
* tree-vect-slp.c (vect_get_and_check_slp_defs): Likewise.

From-SVN: r263126

[10/46] Temporarily make stmt_vec_info a class

This patch turns stmt_vec_info into an unspeakably bad wrapper class
and adds an implicit conversion to the associated gimple stmt.
Having this conversion makes the rest of the series easier to write,
but since the class goes away again at the end of the series, I've
not bothered adding any comments or tried to make it pretty.

2018-07-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vectorizer.h (stmt_vec_info): Temporarily change from
a typedef to a wrapper class.
(NULL_STMT_VEC_INFO): New macro.
(vec_info::stmt_infos): Change to vec<stmt_vec_info>.
(stmt_vec_info::operator*): New function.
(stmt_vec_info::operator gimple *): Likewise.
(set_vinfo_for_stmt): Use NULL_STMT_VEC_INFO.
(add_stmt_costs): Likewise.
* tree-vect-loop-manip.c (iv_phi_p): Likewise.
* tree-vect-loop.c (vect_compute_single_scalar_iteration_cost)
(vect_get_known_peeling_cost): Likewise.
(vect_estimate_min_profitable_iters): Likewise.
* tree-vect-patterns.c (vect_init_pattern_stmt): Likewise.
* tree-vect-slp.c (vect_remove_slp_scalar_calls): Likewise.
* tree-vect-stmts.c (vect_build_gather_load_calls): Likewise.
(vectorizable_store, free_stmt_vec_infos): Likewise.
(new_stmt_vec_info): Change return type of xcalloc to
_stmt_vec_info *.

From-SVN: r263125

[09/46] Add vec_info::lookup_single_use

This patch adds a helper function for seeing whether there is a single
user of an SSA name, and whether that user has a stmt_vec_info.

2018-07-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vectorizer.h (vec_info::lookup_single_use): Declare.
* tree-vectorizer.c (vec_info::lookup_single_use): New function.
* tree-vect-loop.c (vectorizable_reduction): Use it instead of
a single_imm_use-based sequence.
* tree-vect-stmts.c (supportable_widening_operation): Likewise.

From-SVN: r263124

[08/46] Add vec_info::lookup_def

This patch adds a vec_info helper for checking whether an operand is an
SSA_NAME that is defined in the vectorisable region.

2018-07-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vectorizer.h (vec_info::lookup_def): Declare.
* tree-vectorizer.c (vec_info::lookup_def): New function.
* tree-vect-patterns.c (vect_get_internal_def): Use it.
(vect_widened_op_tree): Likewise.
* tree-vect-stmts.c (vect_is_simple_use): Likewise.
* tree-vect-loop.c (vect_analyze_loop_operations): Likewise.
(vectorizable_reduction): Likewise.
(vect_valid_reduction_input_p): Take a stmt_vec_info instead
of a gimple *.
(vect_is_slp_reduction): Update calls accordingly.  Use
vec_info::lookup_def.
(vect_is_simple_reduction): Likewise
* tree-vect-slp.c (vect_detect_hybrid_slp_1): Use vec_info::lookup_def.

From-SVN: r263123

[07/46] Add vec_info::lookup_stmt

This patch adds a vec_info replacement for vinfo_for_stmt.  The main
difference is that the new routine can cope with arbitrary statements,
so there's no need to call vect_stmt_in_region_p first.

The patch only converts calls that are still needed at the end of the
series.  Later patches get rid of most other calls to vinfo_for_stmt.

2018-07-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vectorizer.h (vec_info::lookup_stmt): Declare.
* tree-vectorizer.c (vec_info::lookup_stmt): New function.
* tree-vect-loop.c (vect_determine_vf_for_stmt): Use it instead
of vinfo_for_stmt.
(vect_determine_vectorization_factor, vect_analyze_scalar_cycles_1)
(vect_compute_single_scalar_iteration_cost, vect_analyze_loop_form)
(vect_update_vf_for_slp, vect_analyze_loop_operations)
(vect_is_slp_reduction, vectorizable_induction)
(vect_transform_loop_stmt, vect_transform_loop): Likewise.
* tree-vect-patterns.c (vect_init_pattern_stmt):
(vect_determine_min_output_precision_1, vect_determine_precisions)
(vect_pattern_recog): Likewise.
* tree-vect-stmts.c (vect_analyze_stmt, vect_transform_stmt): Likewise.
* config/powerpcspe/powerpcspe.c (rs6000_density_test): Likewise.
* config/rs6000/rs6000.c (rs6000_density_test): Likewise.
* tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Likewise.
(vect_detect_hybrid_slp_1, vect_detect_hybrid_slp_2)
(vect_detect_hybrid_slp): Likewise.  Change the walk_stmt_info
info field from a loop to a loop_vec_info.

From-SVN: r263122

[06/46] Add vec_info::add_stmt

This patch adds a vec_info function for allocating and setting
stmt_vec_infos.  It's the start of a long process of removing
the global stmt_vec_info array.

2018-07-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vectorizer.h (stmt_vec_info): Move typedef earlier in file.
(vec_info::add_stmt): Declare.
* tree-vectorizer.c (vec_info::add_stmt): New function.
* tree-vect-data-refs.c (vect_create_data_ref_ptr): Use it.
* tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Likewise.
(vect_create_epilog_for_reduction, vectorizable_reduction): Likewise.
(vectorizable_induction): Likewise.
* tree-vect-slp.c (_bb_vec_info::_bb_vec_info): Likewise.
* tree-vect-stmts.c (vect_finish_stmt_generation_1): Likewise.
(vectorizable_simd_clone_call, vectorizable_store): Likewise.
(vectorizable_load): Likewise.
* tree-vect-patterns.c (vect_init_pattern_stmt): Likewise.
(vect_recog_bool_pattern, vect_recog_mask_conversion_pattern)
(vect_recog_gather_scatter_pattern): Likewise.
(append_pattern_def_seq): Likewise.  Remove a check that is
performed by add_stmt itself.

From-SVN: r263121

[05/46] Fix make_ssa_name call in vectorizable_reduction

The usual vectoriser dance to create new assignments is:

    new_stmt = gimple_build_assign (vec_dest, ...);
    new_temp = make_ssa_name (vec_dest, new_stmt);
    gimple_assign_set_lhs (new_stmt, new_temp);

but one site in vectorizable_reduction used:

    new_temp = make_ssa_name (vec_dest, new_stmt);

before creating new_stmt.

This method of creating statements probably needs cleaning up, but
that's for another day...

2018-07-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vect-loop.c (vectorizable_reduction): Fix an instance in
which make_ssa_name was called with new_stmt before new_stmt
had been created.

From-SVN: r263120

[04/46] Factor out the test for a valid reduction input

vect_is_slp_reduction and vect_is_simple_reduction had two instances
each of:

              && (is_gimple_assign (def_stmt)
                  || is_gimple_call (def_stmt)
                  || STMT_VINFO_DEF_TYPE (vinfo_for_stmt (def_stmt))
                           == vect_induction_def
                  || (gimple_code (def_stmt) == GIMPLE_PHI
                      && STMT_VINFO_DEF_TYPE (vinfo_for_stmt (def_stmt))
                                  == vect_internal_def
                      && !is_loop_header_bb_p (gimple_bb (def_stmt)))))

This patch splits it out in a subroutine.

2018-07-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vect-loop.c (vect_valid_reduction_input_p): New function,
split out from...
(vect_is_slp_reduction): ...here...
(vect_is_simple_reduction): ...and here.  Remove repetition of tests
that are already known to be false.

From-SVN: r263119

[03/46] Remove unnecessary update of NUM_SLP_USES

vect_free_slp_tree had:

  gimple *stmt;
  FOR_EACH_VEC_ELT (SLP_TREE_SCALAR_STMTS (node), i, stmt)
    /* After transform some stmts are removed and thus their vinfo is gone.  */
    if (vinfo_for_stmt (stmt))
      {
gcc_assert (STMT_VINFO_NUM_SLP_USES (vinfo_for_stmt (stmt)) > 0);
STMT_VINFO_NUM_SLP_USES (vinfo_for_stmt (stmt))--;
      }

But after transform this update is redundant even for statements that do
exist, so it seems better to skip this loop for the final teardown.

2018-07-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vectorizer.h (vect_free_slp_instance): Add a final_p parameter.
* tree-vect-slp.c (vect_free_slp_tree): Likewise.  Don't update
STMT_VINFO_NUM_SLP_USES when it's true.
(vect_free_slp_instance): Add a final_p parameter and pass it to
vect_free_slp_tree.
(vect_build_slp_tree_2): Update call to vect_free_slp_instance.
(vect_analyze_slp_instance): Likewise.
(vect_slp_analyze_operations): Likewise.
(vect_slp_analyze_bb_1): Likewise.
* tree-vectorizer.c (vec_info): Likewise.
* tree-vect-loop.c (vect_transform_loop): Likewise.

From-SVN: r263118

[02/46] Remove dead vectorizable_reduction code

vectorizable_reduction has old code to cope with cases in which the
given statement belongs to a reduction group but isn't the first statement.
That can no longer happen, since all statements in the group go into the
same SLP node, and we only check the first statement in each node.

The point is to remove the only path through vectorizable_reduction
in which stmt and stmt_info refer to different statements.

2018-07-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vect-loop.c (vectorizable_reduction): Assert that the
function is not called for second and subsequent members of
a reduction group.

From-SVN: r263117

[01/46] Move special cases out of get_initial_def_for_reduction

This minor clean-up avoids repeating the test for double reductions
and also moves the vect_get_vec_def_for_operand call to the same
function as the corresponding vect_get_vec_def_for_stmt_copy.

2018-07-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vect-loop.c (get_initial_def_for_reduction): Move special
cases for nested loops from here to ...
(vect_create_epilog_for_reduction): ...here.  Only call
vect_is_simple_use for inner-loop reductions.

From-SVN: r263116

P1008R1 - prohibit aggregates with user-declared constructors

P1008R1 - prohibit aggregates with user-declared constructors
* class.c (check_bases_and_members): For C++2a set
CLASSTYPE_NON_AGGREGATE based on TYPE_HAS_USER_CONSTRUCTOR rather than
type_has_user_provided_or_explicit_constructor.

* g++.dg/ext/is_aggregate.C: Add tests with deleted or defaulted ctor.
* g++.dg/cpp0x/defaulted1.C (main): Ifdef out for C++2a B b = {1};.
* g++.dg/cpp0x/deleted2.C: Expect error for C++2a.
* g++.dg/cpp2a/aggr1.C: New test.
* g++.dg/cpp2a/aggr2.C: New test.

From-SVN: r263115

arm: Testcase for PR86640

gcc/testsuite/
PR target/86640
* gcc.target/arm/pr86640.c: New testcase.

From-SVN: r263114

GCOV: add cache for streamed locations.

2018-07-31  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/85338
        PR gcov-profile/85350
        PR gcov-profile/85372
        * profile.c (struct location_triplet): New.
(struct location_triplet_hash): Likewise.
(output_location): Do not output a BB that
        is already recorded for a line.
(branch_prob): Use streamed_locations.
2018-07-31  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/85338
        PR gcov-profile/85350
        PR gcov-profile/85372
* gcc.misc-tests/gcov-pr85338.c: New test.
* gcc.misc-tests/gcov-pr85350.c: New test.
* gcc.misc-tests/gcov-pr85372.c: New test.

From-SVN: r263113

Fix target clones (PR gcov-profile/85370).

2018-07-31  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/85370
* coverage.c (coverage_begin_function): Do not mark target
        clones as artificial functions.

From-SVN: r263112

Fix GCOV CFG related issues.

2018-07-31  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/83813
        PR gcov-profile/84758
        PR gcov-profile/85217
        PR gcov-profile/85332
* profile.c (branch_prob): Do not record GOTO expressions
        for GIMPLE statements which locations are already streamed.
2018-07-31  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/83813
        PR gcov-profile/84758
        PR gcov-profile/85217
        PR gcov-profile/85332
* gcc.misc-tests/gcov-pr83813.c: New test.
* gcc.misc-tests/gcov-pr84758.c: New test.
* gcc.misc-tests/gcov-pr85217.c: New test.
* gcc.misc-tests/gcov-pr85332.c: New test.

From-SVN: r263111

Fix an UBSAN error in cp/parse.c (PR c++/86653).

2018-07-31  Martin Liska  <mliska@suse.cz>

        PR c++/86653
* parser.c (cp_parser_condition): Initialize non_constant_p
        to false.

From-SVN: r263110

[Ada] Various code clean-ups from CodePeer messages

2018-07-31  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* clean.adb, gnatchop.adb, gnatfind.adb, gnatls.adb,
gnatmake.ads, gnatxref.adb, make.adb, make.ads, make_util.ads,
sfn_scan.adb, vxaddr2line.adb, xeinfo.adb, xoscons.adb,
xr_tabls.adb, xref_lib.adb: Address CodePeer messages.

From-SVN: r263108

[Ada] Fix potential Constraint_Error if Library_Version is too long

2018-07-31  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* gnatlink.adb: Fix potential Constraint_Error if
Library_Version is too long.

From-SVN: r263107

[Ada] Sem_Elab: remove duplicate condition

2018-07-31  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* sem_elab.adb: Remove duplicate condition detected by CodePeer.

From-SVN: r263106

[Ada] Unnesting: improve support for entries in protected objects

2018-07-31  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* exp_unst.adb (Subp_Index): In the case of a protected
operation, the relevant entry is the generated
protected_subprogram_body into which the original body is
rewritten. Assorted cleanup and optimizations.

From-SVN: r263105

[Ada] Refine generation of range checks to happen in front end

2018-07-31  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* exp_attr.adb (Expand_Attribute, case Fixed_Value): Set the
base type of the result to ensure that proper overflow and range
checks are generated.  If the target is a fixed-point tyoe,
generate the required overflow and range checks explicitly,
rather than relying on Apply_Type_Conversion_Checks, which might
simply set the Do_Range_Check flag and rely on the backend to
add the check.

From-SVN: r263104

[Ada] Secondary stack leak with access-to-subprogram

This patch modifies call resolution to recognize when the designated type of
an access-to-subprogram requires secondary stack management, and establish
the proper transient block.

------------
-- Source --
------------

--  leak7.adb

procedure Leak7 is
   Max_Iterations : constant := 10_000;

   function Func return String is
   begin
      return "Will this leak? Or will it dry?";
   end Func;

   type Func_Ptr is access function return String;

   procedure Anonymous_Leak (Func : access function return String) is
   begin
      for Iteration in 1 .. Max_Iterations loop
         declare
            Val : constant String := Func.all;
         begin null; end;
      end loop;
   end Anonymous_Leak;

   procedure Named_Leak (Func : Func_Ptr) is
   begin
      for Iteration in 1 .. Max_Iterations loop
         declare
            Val : constant String := Func.all;
         begin null; end;
      end loop;
   end Named_Leak;

begin
   Anonymous_Leak (Func'Access);
   Named_Leak     (Func'Access);
end Leak7;

----------------------------
-- Compilation and output --
----------------------------

$ gnatmake -q leak7.adb
$ valgrind ./leak7 >& leak7.txt
$ grep -c "still reachable" leak7.txt
0

2018-07-31  Hristian Kirtchev  <kirtchev@adacore.com>

gcc/ada/

* sem_res.adb (Resolve_Call): Establish a transient scope to
manage the secondary stack when the designated type of an
access-to-subprogram requires it.

From-SVN: r263103

[Ada] Unnesting: find local subps in nested stmt sequences

2018-07-31  Ed Schonberg  <schonberg@adacore.com>

gcc/ada

* exp_ch7.adb (Check_Unnesting_Elaboration_Code): To find local
subprograms in the elaboration code for a package body, recurse
through nested statement sequences because a compiler-generated
procedure may appear within a condition statement.

From-SVN: r263102

[Ada] Spurious error on default parameter in protected operation

This patch fixes a spurious compiler error on a call to a protected
operation whose profile includes a defaulted in-parameter that is a call
to another protected function of the same object.

2018-07-31  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* exp_ch6.adb (Expand_Protected_Subprogram_Call): Handle
properly a protected call that includes a default parameter that
is a call to a protected function of the same type.

gcc/testsuite/

* gnat.dg/prot5.adb, gnat.dg/prot5_pkg.adb,
gnat.dg/prot5_pkg.ads: New testcase.

From-SVN: r263101

[Ada] GNATmake fails to detect missing body

This patch corrects an issue whereby building a multi-unit compilation with
missing sources resulted in a cryptic "code generation" error instead of the
appropriate file not found error.

------------
-- Source --
------------

--  main.adb

with Types;
procedure Main is
begin
   null;
end;

--  types.ads

package Types is
  procedure Force;
end;

----------------------------
-- Compilation and output --
----------------------------

& gnatmake -q main.adb
gnatmake: "types.adb" not found

2018-07-31  Justin Squirek  <squirek@adacore.com>

gcc/ada/

* lib-writ.adb (Write_With_Lines): Modfiy the generation of
dependencies within ali files so that source unit bodies are
properly listed even if said bodies are missing.  Perform legacy
behavior in GNATprove mode.
* lib-writ.ads: Modify documentation to reflect current behavior.

From-SVN: r263100

[Ada] Fix alignment of mutex_t and cond_t type on 32-bit SPARC/Solaris

The alignment of the couple of types from System.OS_Interface was wrongly
set to 4 (32-bit) instead of 8 (64-bit) in 32-bit mode.

2018-07-31  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

*  libgnarl/s-osinte__solaris.ads (upad64_t): New private type.
(mutex_t): Use it for 'lock' and 'data' components.
(cond_t): Likewise for 'data' and use single 'flags' component.

From-SVN: r263099

[Ada] Wrong value after assignment of overlain record objects

This patch corrects an issue whereby objects of a record type with a
representation clause which are overlain by address would fail to get
assigned values properly when one or both of said objects were marked
volatile.

2018-07-31  Justin Squirek  <squirek@adacore.com>

gcc/ada/

* exp_ch5.adb (Make_Field_Assign): Force temporarily generated
objects for assignment of overlaid user objects to be renamings
instead of constant declarations.

gcc/testsuite/

* gnat.dg/addr11.adb: New testcase.

From-SVN: r263098

[Ada] Spurious error on the placement of aspect Global

This patch modifies the expansion of stand-alone subprogram bodies that appear
in the body of a protected type to properly associate aspects and pragmas to
the newly created spec for the subprogram body. As a result, the annotations
are properly associated with the initial declaration of the subprogram.

2018-07-31  Hristian Kirtchev  <kirtchev@adacore.com>

gcc/ada/

* exp_ch9.adb (Analyze_Pragmas): New routine.
(Build_Private_Protected_Declaration): Code clean up. Relocate
relevant aspects and pragmas from the stand-alone body to the
newly created spec.  Explicitly analyze any pragmas that have
been either relocated or produced by the analysis of the
aspects.
(Move_Pragmas): New routine.
* sem_prag.adb (Find_Related_Declaration_Or_Body): Recognize the
case where a pragma applies to the internally created spec for a
stand-along subprogram body declared in a protected body.

gcc/testsuite/

* gnat.dg/global.adb, gnat.dg/global.ads: New testcase.

From-SVN: r263097

[Ada] Compiler failure on an extended_return_statement in a block

When compiling with an assertion-enabled compiler, Assert_Failure can be
raised when expanded an extended_return_statement whose enclosing scope
is not a function (such as when it's a block_statement). The simple fix
is to change the Assert to test Current_Subprogram rather than Current_Scope.
Three such Assert pragmas are corrected in this way.

2018-07-31  Gary Dismukes  <dismukes@adacore.com>

gcc/ada/

* exp_ch6.adb (Expand_N_Extended_Return_Statement): Replace
calls to Current_Scope in three assertions with calls to
Current_Subprogram.

gcc/testsuite/

* gnat.dg/block_ext_return_assert_failure.adb: New testcase.

From-SVN: r263096

[Ada] Spurious warning on iteration over range of 64-bit modular type

This patch suppresses a spurious warning on the use of a 64-bit modular type
in a quantified expression, where the range of iteration will include a bound
that appears larger than the run-time representation of Universal_Integer'last.

2018-07-31  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* sem_eval.adb (Check_Non_Static_Context): Do not warn on an
integer literal greater than the upper bound of
Universal_Integer'Last when expansion is disabled, to avoid a
spurious warning over ranges involving 64-bit modular types.

gcc/testsuite/

* gnat.dg/iter3.adb: New testcase.

From-SVN: r263095

[Ada] Print the Is_Activation_Record flag

2018-07-31  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* einfo.adb (Write_Entity_Flags): Also print
Is_Activation_Record flag.

From-SVN: r263094

[Ada] Replace low-level calls to Ekind with high-level calls to Is_Formal

High-level wrappers are easier to read. This change came up while reading
some code related to GNATprove, but then uniformly applied to the entire
frontend. For the few remaining membership tests that could be replaced
by Is_Formal it is not obvious whether the high-level routine makes the
code better.

2018-07-31  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

* exp_aggr.adb, exp_ch4.adb, exp_ch6.adb, lib-xref.adb,
repinfo.adb, sem_ch9.adb: Minor replace Ekind membership tests
with a wrapper routine.

From-SVN: r263093

[Ada] Deconstruct 'F' as a prefix for an ALI data

In GNATprove we used to store a variant of cross-reference information in
the ALI file in lines that started with an 'F' letter. This is no longer
the case, so the letter can be returned to the pool of unused prefixes.

2018-07-31  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

* ali.adb (Known_ALI_Lines): Remove 'F' as a prefix for lines
related to the FORMAL analysis done by GNATprove.

From-SVN: r263092

[Ada] Fix a freezing issue

2018-07-31  Javier Miranda  <miranda@adacore.com>

gcc/ada/

* sem.ads (Inside_Preanalysis_Without_Freezing): New global
counter.
* sem.adb (Semantics): This subprogram has now the
responsibility of resetting the counter before analyzing a unit,
and restoring its previous value before returning.
* freeze.adb (Freeze_Entity): Do not freeze if we are
preanalyzing without freezing.
* sem_res.adb (Preanalyze_And_Resolve): Set & restore
In_Preanalysis_Without_Freezing.

From-SVN: r263091

[Ada] Fix resolution of class-wide operations that are generic actuals

2018-07-31  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* sem_ch4.adb (Traverse_Homonyms): Consider generic actuals that
may rename a matching class-wide operation only if the renaming
declaration for that actual is in an enclosing scope (i.e.
within the corrresponding instance).

From-SVN: r263090

[Ada] Minor reformattings

2018-07-31  Hristian Kirtchev  <kirtchev@adacore.com>

gcc/ada

* checks.adb, contracts.adb, exp_aggr.adb, exp_ch5.adb,
exp_disp.adb, make.adb, sem_ch4.adb, sem_eval.adb, sem_res.adb,
usage.adb: Minor reformatting.

From-SVN: r263089

[Ada] Spurious error -- "allocation from empty storage pool"

This patch fixes a bug in which if "pragma Default_Storage_Pool (null);"
is given, then a build-in-place function will get an incorrect error
message "allocation from empty storage pool" even though there is no
such allocation in the source program.

2018-07-31  Bob Duff  <duff@adacore.com>

gcc/ada/

* sem_res.adb (Resolve_Allocator): Do not complain about the
implicit allocator that occurs in the expansion of a return
statement for a build-in-place function.

From-SVN: r263088

Improve specs processing to allow %* in function arguments

2018-07-31  Olivier Hainque  <hainque@adacore.com>

* gcc.c (handle_spec_function): Accept a soft_matched_part
argument, as do_spec_1.  Pass it down to ...
(eval_spec_function): Accept a soft_matched_part argument,
and pass it down to ...
(do_spec_2): Accept a soft_matched_part argument, and pass
it down to do_spec_1.
(do_spec_1): Pass soft_matched_part to handle_spec_function.
(handle_braces): Update call to handle_spec_function.
(driver::set_up_specs): Update calls to do_spec_2.
(compare_debug_dump_opt_spec_function): Likewise.
(compare_debug_self_opt_spec_function): Likewise.

From-SVN: r263087

Add support for -nolibc

2018-06-07  Olivier Hainque  <hainque@adacore.com>

* common.opt (nolibc): New option.
* doc/invoke.texi (Link Options): Document it.
* gcc.c (LINK_GCC_C_SEQUENCE_SPEC): Honor nolibc.
* config/alpha/linux.h: Likewise.
* config/arc/elf.h: Likewise.
* config/arm/uclinux-elf.h: Likewise.
* config/arm/unknown-elf.h: Likewise.
* config/avr/avrlibc.h: Likewise.
* config/bfin/bfin.h: Likewise.
* config/bfin/linux.h: Likewise.
* config/bfin/uclinux.h: Likewise.
* config/darwin.h: Likewise.
* config/darwin10.h: Likewise.
* config/darwin12.h: Likewise.
* config/gnu-user.h: Likewise.
* config/lm32/uclinux-elf.h: Likewise.
* config/pa/pa-hpux11.h: Likewise.
* config/pa/pa64-hpux.h: Likewise.
* config/sparc/sparc.h: Likewise.

From-SVN: r263083

Reverting 'AsyncI/O patch committed' as it is breaking bare-metal builds.

2018-07-31  Andre Vieira  <andre.simoesdiasvieira@arm.com>

Revert 'AsyncI/O patch committed'
2018-07-25  Nicolas Koenig  <koenigni@gcc.gnu.org>
Thomas Koenig <tkoenig@gcc.gnu.org>

PR fortran/25829
* gfortran.texi: Add description of asynchronous I/O.
* trans-decl.c (gfc_finish_var_decl): Treat asynchronous variables
as volatile.
* trans-io.c (gfc_build_io_library_fndecls): Rename st_wait to
st_wait_async and change argument spec from ".X" to ".w".
(gfc_trans_wait): Pass ID argument via reference.

2018-07-31  Andre Vieira  <andre.simoesdiasvieira@arm.com>

Revert 'AsyncI/O patch committed'
2018-07-25  Nicolas Koenig  <koenigni@gcc.gnu.org>
Thomas Koenig <tkoenig@gcc.gnu.org>

PR fortran/25829
* gfortran.dg/f2003_inquire_1.f03: Add write statement.
* gfortran.dg/f2003_io_1.f03: Add wait statement.

2018-07-31  Andre Vieira  <andre.simoesdiasvieira@arm.com>

Revert 'AsyncI/O patch committed'
2018-07-25  Nicolas Koenig  <koenigni@gcc.gnu.org>
Thomas Koenig <tkoenig@gcc.gnu.org>

PR fortran/25829
* Makefile.am: Add async.c to gfor_io_src.
Add async.h to gfor_io_headers.
* Makefile.in: Regenerated.
* gfortran.map: Add _gfortran_st_wait_async.
* io/async.c: New file.
* io/async.h: New file.
* io/close.c: Include async.h.
(st_close): Call async_wait for an asynchronous unit.
* io/file_pos.c (st_backspace): Likewise.
(st_endfile): Likewise.
(st_rewind): Likewise.
(st_flush): Likewise.
* io/inquire.c: Add handling for asynchronous PENDING
and ID arguments.
* io/io.h (st_parameter_dt): Add async bit.
(st_parameter_wait): Correct.
(gfc_unit): Add au pointer.
(st_wait_async): Add prototype.
(transfer_array_inner): Likewise.
(st_write_done_worker): Likewise.
* io/open.c: Include async.h.
(new_unit): Initialize asynchronous unit.
* io/transfer.c (async_opt): New struct.
(wrap_scalar_transfer): New function.
(transfer_integer): Call wrap_scalar_transfer to do the work.
(transfer_real): Likewise.
(transfer_real_write): Likewise.
(transfer_character): Likewise.
(transfer_character_wide): Likewise.
(transfer_complex): Likewise.
(transfer_array_inner): New function.
(transfer_array): Call transfer_array_inner.
(transfer_derived): Call wrap_scalar_transfer.
(data_transfer_init): Check for asynchronous I/O.
Perform a wait operation on any pending asynchronous I/O
if the data transfer is synchronous. Copy PDT and enqueue
thread for data transfer.
(st_read_done_worker): New function.
(st_read_done): Enqueue transfer or call st_read_done_worker.
(st_write_done_worker): New function.
(st_write_done): Enqueue transfer or call st_read_done_worker.
(st_wait): Document as no-op for compatibility reasons.
(st_wait_async): New function.
* io/unit.c (insert_unit): Use macros LOCK, UNLOCK and TRYLOCK;
add NOTE where necessary.
(get_gfc_unit): Likewise.
(init_units): Likewise.
(close_unit_1): Likewise. Call async_close if asynchronous.
(close_unit): Use macros LOCK and UNLOCK.
(finish_last_advance_record): Likewise.
(newunit_alloc): Likewise.
* io/unix.c (find_file): Likewise.
(flush_all_units_1): Likewise.
(flush_all_units): Likewise.
* libgfortran.h (generate_error_common): Add prototype.
* runtime/error.c: Include io.h and async.h.
(generate_error_common): New function.

2018-07-31  Andre Vieira  <andre.simoesdiasvieira@arm.com>

Revert 'AsyncI/O patch committed'.
2018-07-25  Nicolas Koenig  <koenigni@gcc.gnu.org>
Thomas Koenig <tkoenig@gcc.gnu.org>

PR fortran/25829
* testsuite/libgomp.fortran/async_io_1.f90: New test.
* testsuite/libgomp.fortran/async_io_2.f90: New test.
* testsuite/libgomp.fortran/async_io_3.f90: New test.
* testsuite/libgomp.fortran/async_io_4.f90: New test.
* testsuite/libgomp.fortran/async_io_5.f90: New test.
* testsuite/libgomp.fortran/async_io_6.f90: New test.
* testsuite/libgomp.fortran/async_io_7.f90: New test.

From-SVN: r263082

getenv_spec_function to prepend / to value for undef var

So the value can be used in places where an absolute path
is expected.

2018-07-31  Olivier Hainque  <hainque@adacore.com>

        * gcc.c (getenv_spec_function): Prepend '/' to value for
allowed undefined variables.

From-SVN: r263081

Daily bump.

From-SVN: r263080

arm: Generate correct const_ints (PR86640)

In arm_block_set_aligned_vect 8-bit constants are generated as zero-
extended const_ints, not sign-extended as required.  Fix that.

PR target/86640
* config/arm/arm.c (arm_block_set_aligned_vect): Use gen_int_mode
instead of GEN_INT.

From-SVN: r263075

PR libstdc++/86734 make reverse_iterator::operator-> more robust

Implement the proposed resolution from LWG 1052, which also resolves
DR 2118 by avoiding taking the address in the first place.

PR libstdc++/86734
* include/bits/stl_iterator.h (reverse_iterator::operator->): Call
_S_to_pointer (LWG 1052, LWG 2118).
(reverse_iterator::_S_to_pointer): Define overloaded helper functions.
* testsuite/24_iterators/reverse_iterator/dr1052.cc: New test.
* testsuite/24_iterators/reverse_iterator/dr2188.cc: New test.

From-SVN: r263074

Add workaround for aligned_alloc bug on AIX

20_util/memory_resource/2.cc FAILs on AIX 7.2.0.0, because aligned_alloc
incorrectly requires the alignment to be a multiple of sizeof(void*).

This adds a workaround to the operator new overload taking an alignment
value, to increase the alignment (and size) if needed.

* libsupc++/new_opa.cc (operator new(size_t, align_val_t)): Add
workaround for aligned_alloc bug on AIX.
* testsuite/18_support/new_aligned.cc: New test.

From-SVN: r263073

testcase for 2-2 combine

gcc/testsuite/
PR rtl-optimization/85160
* gcc.target/powerpc/combine-2-2.c: New testcase.

From-SVN: r263072

* de.po, sv.po: Update.

From-SVN: r263070

cplus-dem.c (remember_Btype): Don't call memcpy with LEN==0.

2018-07-30  Tom Tromey  <tom@tromey.com>

* cplus-dem.c (remember_Btype): Don't call memcpy with LEN==0.

From-SVN: r263069

tree-ssa-forwprop.c (simplify_builtin_call): Don't create a not NUL terminated string literal.

2018-07-30  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * tree-ssa-forwprop.c (simplify_builtin_call): Don't create a not NUL
        terminated string literal.

From-SVN: r263068

combine: Allow combining two insns to two insns

This patch allows combine to combine two insns into two.  This helps
in many cases, by reducing instruction path length, and also allowing
further combinations to happen.  PR85160 is a typical example of code
that it can improve.

This patch does not allow such combinations if either of the original
instructions was a simple move instruction.  In those cases combining
the two instructions increases register pressure without improving the
code.  With this move test register pressure does no longer increase
noticably as far as I can tell.

(At first I also didn't allow either of the resulting insns to be a
move instruction.  But that is actually a very good thing to have, as
should have been obvious).

PR rtl-optimization/85160
* combine.c (is_just_move): New function.
(try_combine): Allow combining two instructions into two if neither of
the original instructions was a move.

From-SVN: r263067

[ARM] libgcc: Fix comment for code working on architectures >= 4.

2018-07-30  Christophe Lyon  <christophe.lyon@linaro.org>

* config/arm/ieee754-df.S: Fix comment for code working on
architectures >= 4.
* config/arm/ieee754-sf.S: Likewise.

From-SVN: r263066

doc: discourage const/volatile on register variables (PR 86673)

PR target/86673
* doc/extend.texi (Global Register Variables): Discourage use of type
qualifiers.
(Local Register Variables): Likewise.

From-SVN: r263065

Resync inline implementation of ceil_log2 (PR 86506)

In r262961 I only updated the out-of-line copy of ceil_log2.  This patch
applies the same change to the other (inline) one.

2018-07-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
PR tree-optimization/86506
* hwint.h (ceil_log2): Resync with hwint.c implementation.

From-SVN: r263064

lra: consider clobbers when selecting hard_regno to spill

The idea behind the rclass loop in spill_hard_reg_in_range() seems to
be: find a hard_regno, which in general conflicts with reload regno,
but does not do so between `from` and `to`, and then do the live range
splitting based on this information. To check the absence of conflicts,
we make use of insn_bitmap, which does not contain insns which clobber
the hard_regno.

gcc/ChangeLog:

2018-07-30  Ilya Leoshkevich  <iii@linux.ibm.com>

        PR target/86547
* lra-constraints.c (spill_hard_reg_in_range): When selecting the
hard_regno, make sure no insn between `from` and `to` clobbers it.

From-SVN: r263063

[libgomp, nvptx] Handle per-function max-threads-per-block in default dims

Currently parallel-loop-1.c fails at -O0 on a Quadro M1200, because one of the
kernel launch configurations exceeds the resources available in the device, due
to the default dimensions chosen by the runtime.

This patch fixes that by taking the per-function max_threads_per_block into
account when using the default dimensions.

2018-07-30  Tom de Vries  <tdevries@suse.de>

* plugin/plugin-nvptx.c (MIN, MAX): Redefine.
(nvptx_exec): Ensure worker and vector default dims don't exceed
targ_fn->max_threads_per_block.

From-SVN: r263062

[libgomp, nvptx] Calculate default dims per device

The default dimensions are calculated using per-device properties, but
initialized once and used on all devices.

This patch fixes this problem by introducing per-device default dimensions.

2018-07-30  Tom de Vries  <tdevries@suse.de>

* plugin/plugin-nvptx.c (struct ptx_device): Add default_dims field.
(nvptx_open_device): Init default_dims for device.
(nvptx_exec): Use default_dims from device.

From-SVN: r263061

[nvptx, offloading] Determine default workers at runtime

Currently, if the user doesn't specify the number of workers for an openacc
region, the compiler hardcodes it to a default value.

This patch removes this functionality, such that the libgomp runtime can decide
on a default value.

2018-07-30  Cesar Philippidis  <cesar@codesourcery.com>
    Tom de Vries  <tdevries@suse.de>

* config/nvptx/nvptx.c (PTX_GANG_DEFAULT): Rename to ...
(PTX_DEFAULT_RUNTIME_DIM): ... this.
(nvptx_goacc_validate_dims): Set default worker and gang dims to
PTX_DEFAULT_RUNTIME_DIM.
(nvptx_dim_limit): Ignore GOMP_DIM_WORKER.

Co-Authored-By: Tom de Vries <tdevries@suse.de>
From-SVN: r263060

Daily bump.

From-SVN: r263059

pa.c (pa_output_addr_vec): Align address table.

* config/pa/pa.c (pa_output_addr_vec): Align address table.
* config/pa/pa.h (JUMP_TABLES_IN_TEXT_SECTION): Revise comment.
* config/pa/pa32-linux.h (JUMP_TABLES_IN_TEXT_SECTION): Define.

From-SVN: r263051

Daily bump.

From-SVN: r263050

C++: clean up cp_printer

This makes it easier to compare cp_printer with gcc_cxxdiag_char_table
in c-format.c.

No functional change intended.

gcc/cp/ChangeLog:
* error.c (cp_printer): In the leading comment, move "%H" and "%I"
into alphabetical order, and add missing "%G" and "%K".  Within
the switch statement, move cases 'G', 'H', 'I' and 'K' so that the
cases are in alphabetical order.

From-SVN: r263046

Daily bump.

From-SVN: r263045

constraints.md (wG constraint): Delete, no longer used.

2018-07-27  Michael Meissner  <meissner@linux.ibm.com>

* config/rs6000/constraints.md (wG constraint): Delete, no longer
used.
* config/rs6000/predicates.md (p9_fusion_reg_operand): Rename
predicate to reflect toc fusion has been deleted.
(toc_fusion_mem_raw): Delete, no longer used.
(toc_fusion_mem_wrapped): Likewise.
* config/rs6000/rs6000-cpus.def (POWERPC_MASKS): Delete toc
fusion mask bit.
* config/rs6000/rs6000-protos.h (fusion_wrap_memory_address):
Delete, no longer used.
* config/rs6000/rs6000.c (struct rs6000_reg_addr): Delete fields
meant to be used for toc fusion.
(rs6000_debug_print_mode): Delete toc fusion debugging.
(rs6000_debug_reg_global): Likewise.
(rs6000_init_hard_regno_mode_ok): Delete setting up fields for toc
fusion and secondary reload support that were never used.
(rs6000_option_override_internal): Delete TOC fusion, that was only
partially defined, and it did not work unless you also used the
-mcmodel= switch.
(rs6000_legitimate_address_p): Delete TOC fusion support.
(rs6000_opt_masks): Likewise.
(fusion_wrap_memory_address): Delete function, no longer used.
(fusion_split_address); Delete TOC fusion support.
* config/rs6000/rs6000.h (TARGET_TOC_FUSION_INT): Delete, no
longer used with toc fusion being deleted.
(TARGET_TOC_FUSION_FP): Likewise.
* config/rs6000/rs6000.md (UNSPEC_FUSION_ADDIS): Delete TOC fusion
UNSPEC.
(toc fusion spliter): Delete TOC fusion support.
(toc_fusionload_<mode>): Likewise.
(toc_fusionload_di): Likewise.
(fusion_gpr_load_<mode>): Delete generator function, this insn no
longer needs to be named.  Rename predicate to delete TOC fusion.
(fusion_gpr_<P:mode>_<GPR_FUSION:mode>_load): Likewise.
(fusion_gpr_<P:mode>_<GPR_FUSION:mode>_store): Likewise.
(fusion_vsx_<P:mode>_<GPR_FUSION:mode>_load): Likewise.
(fusion_vsx_<P:mode>_<GPR_FUSION:mode>_store): Likewise.
(p9 fusion peephole2s): Rename predicate to delete TOC fusion.

From-SVN: r263039

Update .po files.

* be.po, da.po, de.po, el.po, es.po, fi.po, fr.po, hr.po, id.po,
ja.po, nl.po, ru.po, sr.po, sv.po, tr.po, uk.po, vi.po, zh_CN.po,
zh_TW.po: Update.

From-SVN: r263036

libgo: prune sighandler frames in runtime.sigprof

    When writing stack frames to the pprof CPU profile machinery, it is
    very important to insure that the frames emitted do not contain any
    frames corresponding to artifacts of the profiling process itself
    (signal handlers, sigprof, etc). This patch changes runtime.sigprof to
    strip out those frames from the raw stack generated by
    "runtime.callers".

    Fixes golang/go#26595.

    Reviewed-on: https://go-review.googlesource.com/126175

From-SVN: r263035

extend.texi (Basic PowerPC Built-in Functions Available on ISA 2.05): Replace __uint128_t with __uint128 and __int128_t with __int128 in built-in...

gcc/ChangeLog:

2018-07-27  Kelvin Nilsen  <kelvin@gcc.gnu.org>

* doc/extend.texi (Basic PowerPC Built-in Functions Available on
ISA 2.05):  Replace __uint128_t with __uint128 and __int128_t with
__int128 in built-in function prototypes.
(PowerPC AltiVec Built-in Functions on ISA 2.07): Likewise.
(PowerPC AltiVec Built-in Functions on ISA 3.0): Likewise.

From-SVN: r263033

PR tree-optimization/86696 - ICE in handle_char_store at gcc/tree-ssa-strlen.c:3332

gcc/ChangeLog:

PR tree-optimization/86696
* tree-ssa-strlen.c (get_min_string_length): Handle all integer
types, including enums.
(handle_char_store): Be prepared for the above function to fail.

gcc/testsuite/ChangeLog:

PR tree-optimization/86696
* gcc.dg/pr86696.C: New test.

From-SVN: r263032

Fixes to testcase for PR tree-optimization/86636

gcc/testsuite/ChangeLog:
PR tree-optimization/86636
* gcc.c-torture/compile/pr86636.c: Add dg-do compile.
Add dg-require-effective-target pthread.

From-SVN: r263031

i386: Remove _Unwind_Frames_Increment

CET kernel has been changed to place a restore token on shadow stack for
signal handler to enhance security.  It is usually transparent to user
programs since kernel will pop the restore token when signal handler
returns.  But when an exception is thrown from a signal handler, now
we need to remove _Unwind_Frames_Increment to pop the the restore token
from shadow stack.  Otherwise, we get

FAIL: g++.dg/torture/pr85334.C   -O0  execution test
FAIL: g++.dg/torture/pr85334.C   -O1  execution test
FAIL: g++.dg/torture/pr85334.C   -O2  execution test
FAIL: g++.dg/torture/pr85334.C   -O3 -g  execution test
FAIL: g++.dg/torture/pr85334.C   -Os  execution test
FAIL: g++.dg/torture/pr85334.C   -O2 -flto -fno-use-linker-plugin -flto-partition=none  execution test

PR libgcc/85334
* config/i386/shadow-stack-unwind.h (_Unwind_Frames_Increment):
Removed.

From-SVN: r263030

Disable strcmp/strncmp/memcmp inlining when optimization
level is lower than 2 or Os

From-SVN: r263028

Daily bump.

From-SVN: r263027

* 30_threads/condition_variable_any/cond.cc: New test.

From-SVN: r263022

re PR target/86612 (__strdup problem on power 9)

PR target/86612
* gcc.target/powerpc/pr58673-2.c: Call strdup.

From-SVN: r263020

PR tree-optimization/86043 - strlen after memcpy partially overwriting a string not optimized

PR tree-optimization/86043 - strlen after memcpy partially overwriting a string not optimized
PR tree-optimization/86042 - missing strlen optimization after second strcpy

gcc/ChangeLog:

PR tree-optimization/86043
PR tree-optimization/86042
* tree-ssa-strlen.c (handle_builtin_memcpy): Handle strict overlaps.
(get_string_cst_length): Rename...
(get_min_string_length): ...to this.  Add argument.
(handle_char_store): Extend to handle multi-character stores by
MEM_REF.
* tree.c (initializer_zerop): Use new argument.  Handle MEM_REF.
* tree.h (initializer_zerop): Add argument.

gcc/testsuite/ChangeLog:

PR tree-optimization/86043
PR tree-optimization/86042
* gcc/testsuite/gcc.dg/attr-nonstring-2.c: Xfail test cases due to
pr86688.
* gcc.dg/strlenopt-44.c: New test.

From-SVN: r263018

* src/c++98/locale_init.cc: Fix #ifdef condition.

From-SVN: r263016

re PR middle-end/86660 (libgomp.c++/for-15.C ICEs with nvptx offloading)

PR testsuite/86660
* testsuite/libgomp.c++/for-15.C (results): Include it in
omp declare target region.
(main): Use map (always, tofrom: results) instead of
map (tofrom: results).

From-SVN: r263011

re PR middle-end/86660 (libgomp.c++/for-15.C ICEs with nvptx offloading)

PR middle-end/86660
* omp-low.c (scan_sharing_clauses): Don't ignore map clauses for
declare target to variables if they have always,{to,from,tofrom} map
kinds.

* testsuite/libgomp.c/pr86660.c: New test.

From-SVN: r263010

libsanitizer: Mark REAL(swapcontext) with indirect_return attribute on x86

Cherry-pick compiler-rt revision 337603:

When shadow stack from Intel CET is enabled, the first instruction of all
indirect branch targets must be a special instruction, ENDBR.

lib/asan/asan_interceptors.cc has

...
  int res = REAL(swapcontext)(oucp, ucp);
...

REAL(swapcontext) is a function pointer to swapcontext in libc.  Since
swapcontext may return via indirect branch on x86 when shadow stack is
enabled, as in this case,

int res = REAL(swapcontext)(oucp, ucp);
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^  This function may be
returned via an indirect branch.

Here compiler must insert ENDBR after call, like

call *bar(%rip)
endbr64

I opened an LLVM bug:

https://bugs.llvm.org/show_bug.cgi?id=38207

to add the indirect_return attribute so that it can be used to inform
compiler to insert ENDBR after REAL(swapcontext) call.  We mark
REAL(swapcontext) with the indirect_return attribute if it is available.

This fixed:

https://bugs.llvm.org/show_bug.cgi?id=38249

Reviewed By: eugenis

Differential Revision: https://reviews.llvm.org/D49608

PR target/86560
* asan/asan_interceptors.cc (swapcontext) Cherry-pick
compiler-rt revision 337603.
* sanitizer_common/sanitizer_internal_defs.h (__has_attribute):
Likewise.

From-SVN: r263009

Add missing dg-require-cstdint directives to tests

* testsuite/18_support/aligned_alloc/aligned_alloc.cc: Add
dg-require-cstdint directive.
* testsuite/20_util/allocator/overaligned.cc: Likewise.
* testsuite/20_util/any/cons/aligned.cc: Likewise.
* testsuite/20_util/monotonic_buffer_resource/allocate.cc: Likewise.
* testsuite/20_util/monotonic_buffer_resource/deallocate.cc: Likewise.
* testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc:
Likewise.
* testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc: Likewise.
* testsuite/23_containers/list/modifiers/insert/25288.cc: Likewise.
* testsuite/23_containers/set/allocator/move_assign.cc: Likewise.
* testsuite/25_algorithms/make_heap/complexity.cc: Likewise.
* testsuite/25_algorithms/pop_heap/complexity.cc: Require cstdint and
random_device effective-target.
* testsuite/25_algorithms/push_heap/complexity.cc: Likewise.
* testsuite/25_algorithms/sample/1.cc: Require cstdint.
* testsuite/25_algorithms/sample/2.cc: Likewise.
* testsuite/25_algorithms/sort_heap/complexity.cc: Require cstdint
and random_device.
* testsuite/26_numerics/headers/random/types_std_c++0x.cc: Require
cstdint.
* testsuite/26_numerics/random/chi_squared_distribution/83833.cc:
Likewise.
* testsuite/26_numerics/random/discard_block_engine/requirements/
constexpr_data.cc: Likewise.
* testsuite/26_numerics/random/discard_block_engine/requirements/
constexpr_functions.cc: Likewise.
* testsuite/26_numerics/random/independent_bits_engine/requirements/
constexpr_functions.cc: Likewise.
* testsuite/26_numerics/random/linear_congruential_engine/requirements/
constexpr_data.cc: Likewise.
* testsuite/26_numerics/random/linear_congruential_engine/requirements/
constexpr_functions.cc: Likewise.
* testsuite/26_numerics/random/mersenne_twister_engine/requirements/
constexpr_data.cc: Likewise.
* testsuite/26_numerics/random/mersenne_twister_engine/requirements/
constexpr_functions.cc: Likewise.
* testsuite/26_numerics/random/pr60037-neg.cc: Likewise.
* testsuite/26_numerics/random/seed_seq/cons/65631.cc: Likewise.
* testsuite/26_numerics/random/shuffle_order_engine/requirements/
constexpr_data.cc: Add dg-require-cstdint directive.
* testsuite/26_numerics/random/shuffle_order_engine/requirements/
constexpr_functions.cc: Likewise.
* testsuite/26_numerics/random/subtract_with_carry_engine/requirements/
constexpr_data.cc: Likewise.
* testsuite/26_numerics/random/subtract_with_carry_engine/requirements/
constexpr_functions.cc: Likewise.
* testsuite/26_numerics/random/uniform_real_distribution/operators/
64351.cc: Likewise.
* testsuite/29_atomics/headers/atomic/types_std_c++0x.cc: Likewise.
* testsuite/experimental/algorithm/sample-2.cc: Likewise.
* testsuite/experimental/algorithm/sample.cc: Likewise.
* testsuite/experimental/algorithm/search.cc: Likewise.
* testsuite/experimental/algorithm/shuffle.cc: Likewise.
* testsuite/experimental/any/cons/aligned.cc: Likewise.
* testsuite/experimental/memory_resource/new_delete_resource.cc:
Likewise.
* testsuite/experimental/memory_resource/resource_adaptor.cc: Likewise.
* testsuite/experimental/random/randint.cc: Likewise.
* testsuite/experimental/source_location/1.cc: Likewise.
* testsuite/ext/bitmap_allocator/overaligned.cc: Likewise.
* testsuite/ext/malloc_allocator/overaligned.cc: Likewise.
* testsuite/ext/mt_allocator/overaligned.cc: Likewise.
* testsuite/ext/new_allocator/overaligned.cc: Likewise.
* testsuite/ext/pb_ds/regression/hash_map_rand.cc: Likewise.
* testsuite/ext/pb_ds/regression/hash_set_rand.cc: Likewise.
* testsuite/ext/pb_ds/regression/list_update_map_rand.cc: Likewise.
* testsuite/ext/pb_ds/regression/list_update_set_rand.cc: Likewise.
* testsuite/ext/pb_ds/regression/priority_queue_rand.cc: Likewise.
* testsuite/ext/pb_ds/regression/tree_map_rand.cc: Likewise.
* testsuite/ext/pb_ds/regression/tree_set_rand.cc: Likewise.
* testsuite/ext/pb_ds/regression/trie_map_rand.cc: Likewise.
* testsuite/ext/pb_ds/regression/trie_set_rand.cc: Likewise.
* testsuite/ext/pool_allocator/overaligned.cc: Likewise.
* testsuite/ext/throw_allocator/check_allocate_max_size.cc: Likewise.
* testsuite/ext/throw_allocator/check_deallocate_null.cc: Likewise.
* testsuite/ext/throw_allocator/check_delete.cc: Likewise.
* testsuite/ext/throw_allocator/check_new.cc: Likewise.
* testsuite/ext/throw_allocator/deallocate_global.cc: Likewise.
* testsuite/ext/throw_allocator/deallocate_local.cc: Likewise.
* testsuite/ext/throw_allocator/explicit_instantiation.cc: Likewise.
* testsuite/ext/throw_allocator/variadic_construct.cc: Likewise.
* testsuite/tr1/8_c_compatibility/cinttypes/functions.cc: Likewise.

From-SVN: r263008

Remove dg-require-cstdint directive from tests

Tests for components which are no longer dependent on
_GLIBCXX_USE_C99_STDINT_TR1 do not need to require <cstdint>.

* testsuite/30_threads/recursive_mutex/cons/1.cc: Likewise.
* testsuite/30_threads/recursive_mutex/cons/assign_neg.cc: Likewise.
* testsuite/30_threads/recursive_mutex/cons/copy_neg.cc: Likewise.
* testsuite/30_threads/recursive_mutex/dest/destructor_locked.cc:
Likewise.
* testsuite/30_threads/recursive_mutex/lock/1.cc: Likewise.
* testsuite/30_threads/recursive_mutex/native_handle/1.cc: Likewise.
* testsuite/30_threads/recursive_mutex/native_handle/typesizes.cc:
Likewise.
* testsuite/30_threads/recursive_mutex/requirements/standard_layout.cc:
Likewise.
* testsuite/30_threads/recursive_mutex/requirements/typedefs.cc:
Likewise.
* testsuite/30_threads/recursive_mutex/try_lock/1.cc: Likewise.
* testsuite/30_threads/recursive_mutex/try_lock/2.cc: Likewise.
* testsuite/30_threads/recursive_mutex/unlock/1.cc: Likewise.
* testsuite/30_threads/recursive_mutex/unlock/2.cc: Likewise.
* testsuite/30_threads/recursive_timed_mutex/cons/1.cc: Likewise.
* testsuite/30_threads/recursive_timed_mutex/cons/assign_neg.cc:
Likewise.
* testsuite/30_threads/recursive_timed_mutex/cons/copy_neg.cc:
Likewise.
* testsuite/30_threads/recursive_timed_mutex/dest/
destructor_locked.cc: Likewise.
* testsuite/30_threads/recursive_timed_mutex/lock/1.cc: Likewise.
* testsuite/30_threads/recursive_timed_mutex/lock/2.cc: Likewise.
* testsuite/30_threads/recursive_timed_mutex/native_handle/1.cc:
Likewise.
* testsuite/30_threads/recursive_timed_mutex/native_handle/
typesizes.cc: Likewise.
* testsuite/30_threads/recursive_timed_mutex/requirements/typedefs.cc:
Likewise.
* testsuite/30_threads/recursive_timed_mutex/try_lock/1.cc:
Likewise.
* testsuite/30_threads/recursive_timed_mutex/try_lock/2.cc:
Likewise.
* testsuite/30_threads/recursive_timed_mutex/try_lock_for/1.cc:
Likewise.
* testsuite/30_threads/recursive_timed_mutex/try_lock_for/2.cc:
Likewise.
* testsuite/30_threads/recursive_timed_mutex/try_lock_for/3.cc:
Likewise.
* testsuite/30_threads/recursive_timed_mutex/try_lock_until/1.cc:
Likewise.
* testsuite/30_threads/recursive_timed_mutex/try_lock_until/2.cc:
Likewise.
* testsuite/30_threads/recursive_timed_mutex/unlock/1.cc: Likewise.
* testsuite/30_threads/recursive_timed_mutex/unlock/2.cc: Likewise.
* testsuite/30_threads/scoped_lock/cons/1.cc: Likewise.
* testsuite/30_threads/scoped_lock/requirements/
explicit_instantiation.cc: Likewise.
* testsuite/30_threads/scoped_lock/requirements/typedefs.cc: Likewise.
* testsuite/30_threads/shared_future/cons/assign.cc: Likewise.
* testsuite/30_threads/shared_future/cons/constexpr.cc: Likewise.
* testsuite/30_threads/shared_future/cons/copy.cc: Likewise.
* testsuite/30_threads/shared_future/cons/default.cc: Likewise.
* testsuite/30_threads/shared_future/cons/move.cc: Likewise.
* testsuite/30_threads/shared_future/cons/move_assign.cc: Likewise.
* testsuite/30_threads/shared_future/members/45133.cc: Likewise.
* testsuite/30_threads/shared_future/members/get.cc: Likewise.
* testsuite/30_threads/shared_future/members/get2.cc: Likewise.
* testsuite/30_threads/shared_future/members/valid.cc: Likewise.
* testsuite/30_threads/shared_future/members/wait.cc: Likewise.
* testsuite/30_threads/shared_future/members/wait_for.cc: Likewise.
* testsuite/30_threads/shared_future/members/wait_until.cc: Likewise.
* testsuite/30_threads/shared_future/requirements/
explicit_instantiation.cc: Likewise.
* testsuite/30_threads/shared_lock/cons/1.cc: Likewise.
* testsuite/30_threads/shared_lock/cons/2.cc: Likewise.
* testsuite/30_threads/shared_lock/cons/3.cc: Likewise.
* testsuite/30_threads/shared_lock/cons/4.cc: Likewise.
* testsuite/30_threads/shared_lock/cons/5.cc: Likewise.
* testsuite/30_threads/shared_lock/cons/6.cc: Likewise.
* testsuite/30_threads/shared_lock/locking/1.cc: Likewise.
* testsuite/30_threads/shared_lock/locking/2.cc: Likewise.
* testsuite/30_threads/shared_lock/locking/3.cc: Likewise.
* testsuite/30_threads/shared_lock/locking/4.cc: Likewise.
* testsuite/30_threads/shared_lock/modifiers/1.cc: Likewise.
* testsuite/30_threads/shared_lock/requirements/
explicit_instantiation.cc: Likewise.
* testsuite/30_threads/shared_lock/requirements/typedefs.cc: Likewise.
* testsuite/30_threads/shared_mutex/cons/1.cc: Likewise.
* testsuite/30_threads/shared_mutex/cons/assign_neg.cc: Likewise.
* testsuite/30_threads/shared_mutex/cons/copy_neg.cc: Likewise.
* testsuite/30_threads/shared_mutex/requirements/standard_layout.cc:
Likewise.
* testsuite/30_threads/shared_mutex/try_lock/1.cc: Likewise.
* testsuite/30_threads/shared_mutex/try_lock/2.cc: Likewise.
* testsuite/30_threads/shared_mutex/unlock/1.cc: Likewise.
* testsuite/30_threads/shared_timed_mutex/cons/1.cc: Likewise.
* testsuite/30_threads/shared_timed_mutex/cons/assign_neg.cc: Likewise.
* testsuite/30_threads/shared_timed_mutex/cons/copy_neg.cc: Likewise.
* testsuite/30_threads/shared_timed_mutex/requirements/
standard_layout.cc: Likewise.
* testsuite/30_threads/shared_timed_mutex/try_lock/1.cc: Likewise.
* testsuite/30_threads/shared_timed_mutex/try_lock/2.cc: Likewise.
* testsuite/30_threads/shared_timed_mutex/try_lock/3.cc: Likewise.
* testsuite/30_threads/shared_timed_mutex/unlock/1.cc: Likewise.
* testsuite/30_threads/this_thread/1.cc: Likewise.
* testsuite/30_threads/this_thread/2.cc: Likewise.
* testsuite/30_threads/this_thread/3.cc: Likewise.
* testsuite/30_threads/this_thread/4.cc: Likewise.
* testsuite/30_threads/this_thread/58038.cc: Likewise.
* testsuite/30_threads/thread/70503.cc: Likewise.
* testsuite/30_threads/thread/84532.cc: Likewise.
* testsuite/30_threads/thread/adl.cc: Likewise.
* testsuite/30_threads/thread/cons/1.cc: Likewise.
* testsuite/30_threads/thread/cons/2.cc: Likewise.
* testsuite/30_threads/thread/cons/3.cc: Likewise.
* testsuite/30_threads/thread/cons/4.cc: Likewise.
* testsuite/30_threads/thread/cons/49668.cc: Likewise.
* testsuite/30_threads/thread/cons/5.cc: Likewise.
* testsuite/30_threads/thread/cons/6.cc: Likewise.
* testsuite/30_threads/thread/cons/7.cc: Likewise.
* testsuite/30_threads/thread/cons/8.cc: Likewise.
* testsuite/30_threads/thread/cons/84535.cc: Likewise.
* testsuite/30_threads/thread/cons/9.cc: Likewise.
* testsuite/30_threads/thread/cons/assign_neg.cc: Likewise.
* testsuite/30_threads/thread/cons/copy_neg.cc: Likewise.
* testsuite/30_threads/thread/cons/lwg2097.cc: Likewise.
* testsuite/30_threads/thread/cons/moveable.cc: Likewise.
* testsuite/30_threads/thread/cons/terminate.cc: Likewise.
* testsuite/30_threads/thread/id/operators.cc: Likewise.
* testsuite/30_threads/thread/members/1.cc: Likewise.
* testsuite/30_threads/thread/members/2.cc: Likewise.
* testsuite/30_threads/thread/members/3.cc: Likewise.
* testsuite/30_threads/thread/members/4.cc: Likewise.
* testsuite/30_threads/thread/members/5.cc: Likewise.
* testsuite/30_threads/thread/members/hardware_concurrency.cc:
Likewise.
* testsuite/30_threads/thread/native_handle/cancel.cc: Likewise.
* testsuite/30_threads/thread/swap/1.cc: Likewise.
* testsuite/30_threads/timed_mutex/cons/1.cc: Likewise.
* testsuite/30_threads/timed_mutex/cons/assign_neg.cc: Likewise.
* testsuite/30_threads/timed_mutex/cons/copy_neg.cc: Likewise.
* testsuite/30_threads/timed_mutex/dest/destructor_locked.cc: Likewise.
* testsuite/30_threads/timed_mutex/lock/1.cc: Likewise.
* testsuite/30_threads/timed_mutex/native_handle/1.cc: Likewise.
* testsuite/30_threads/timed_mutex/native_handle/typesizes.cc:
Likewise.
* testsuite/30_threads/timed_mutex/requirements/
standard_layout.cc: Likewise.
* testsuite/30_threads/timed_mutex/requirements/typedefs.cc: Likewise.
* testsuite/30_threads/timed_mutex/try_lock/1.cc: Likewise.
* testsuite/30_threads/timed_mutex/try_lock/2.cc: Likewise.
* testsuite/30_threads/timed_mutex/try_lock_for/1.cc: Likewise.
* testsuite/30_threads/timed_mutex/try_lock_for/2.cc: Likewise.
* testsuite/30_threads/timed_mutex/try_lock_for/3.cc: Likewise.
* testsuite/30_threads/timed_mutex/try_lock_until/1.cc: Likewise.
* testsuite/30_threads/timed_mutex/try_lock_until/2.cc: Likewise.
* testsuite/30_threads/timed_mutex/try_lock_until/57641.cc: Likewise.
* testsuite/30_threads/timed_mutex/unlock/1.cc: Likewise.
* testsuite/30_threads/timed_mutex/unlock/2.cc: Likewise.
* testsuite/30_threads/try_lock/1.cc: Likewise.
* testsuite/30_threads/try_lock/2.cc: Likewise.
* testsuite/30_threads/try_lock/3.cc: Likewise.
* testsuite/30_threads/try_lock/4.cc: Likewise.
* testsuite/30_threads/unique_lock/cons/1.cc: Likewise.
* testsuite/30_threads/unique_lock/cons/2.cc: Likewise.
* testsuite/30_threads/unique_lock/cons/3.cc: Likewise.
* testsuite/30_threads/unique_lock/cons/4.cc: Likewise.
* testsuite/30_threads/unique_lock/cons/5.cc: Likewise.
* testsuite/30_threads/unique_lock/cons/6.cc: Likewise.
* testsuite/30_threads/unique_lock/locking/1.cc: Likewise.
* testsuite/30_threads/unique_lock/locking/2.cc: Likewise.
* testsuite/30_threads/unique_lock/locking/3.cc: Likewise.
* testsuite/30_threads/unique_lock/locking/4.cc: Likewise.
* testsuite/30_threads/unique_lock/modifiers/1.cc: Likewise.
* testsuite/30_threads/unique_lock/requirements/
explicit_instantiation.cc: Likewise.
* testsuite/30_threads/unique_lock/requirements/typedefs.cc: Likewise.

From-SVN: r263007

Remove dg-require-cstdint directive from tests

Tests for components which are no longer dependent on
_GLIBCXX_USE_C99_STDINT_TR1 do not need to require <cstdint>.

* testsuite/30_threads/async/42819.cc: Remove dg-require-cstdint
directive.
* testsuite/30_threads/async/49668.cc: Likewise.
* testsuite/30_threads/async/54297.cc: Likewise.
* testsuite/30_threads/async/84532.cc: Likewise.
* testsuite/30_threads/async/any.cc: Likewise.
* testsuite/30_threads/async/async.cc: Likewise.
* testsuite/30_threads/async/except.cc: Likewise.
* testsuite/30_threads/async/forced_unwind.cc: Likewise.
* testsuite/30_threads/async/launch.cc: Likewise.
* testsuite/30_threads/async/lwg2021.cc: Likewise.
* testsuite/30_threads/async/sync.cc: Likewise.
* testsuite/30_threads/call_once/39909.cc: Likewise.
* testsuite/30_threads/call_once/49668.cc: Likewise.
* testsuite/30_threads/call_once/60497.cc: Likewise.
* testsuite/30_threads/call_once/call_once1.cc: Likewise.
* testsuite/30_threads/call_once/constexpr.cc: Likewise.
* testsuite/30_threads/call_once/dr2442.cc: Likewise.
* testsuite/30_threads/call_once/once_flag.cc: Likewise.
* testsuite/30_threads/condition_variable/54185.cc: Likewise.
* testsuite/30_threads/condition_variable/cons/1.cc: Likewise.
* testsuite/30_threads/condition_variable/cons/assign_neg.cc:
Likewise.
* testsuite/30_threads/condition_variable/cons/copy_neg.cc: Likewise.
* testsuite/30_threads/condition_variable/members/1.cc: Likewise.
* testsuite/30_threads/condition_variable/members/2.cc: Likewise.
* testsuite/30_threads/condition_variable/members/3.cc: Likewise.
* testsuite/30_threads/condition_variable/members/53841.cc: Likewise.
* testsuite/30_threads/condition_variable/members/68519.cc: Likewise.
* testsuite/30_threads/condition_variable/native_handle/typesizes.cc:
Likewise.
* testsuite/30_threads/condition_variable/requirements/
standard_layout.cc: Likewise.
* testsuite/30_threads/condition_variable/requirements/typedefs.cc:
* Likewise.
* testsuite/30_threads/condition_variable_any/50862.cc: Likewise.
* testsuite/30_threads/condition_variable_any/53830.cc: Likewise.
* testsuite/30_threads/condition_variable_any/cons/1.cc: Likewise.
* testsuite/30_threads/condition_variable_any/cons/assign_neg.cc:
Likewise.
* testsuite/30_threads/condition_variable_any/cons/copy_neg.cc:
Likewise.
* testsuite/30_threads/condition_variable_any/members/1.cc: Likewise.
* testsuite/30_threads/condition_variable_any/members/2.cc: Likewise.
* testsuite/30_threads/future/cons/assign_neg.cc: Likewise.
* testsuite/30_threads/future/cons/constexpr.cc: Likewise.
* testsuite/30_threads/future/cons/copy_neg.cc: Likewise.
* testsuite/30_threads/future/cons/default.cc: Likewise.
* testsuite/30_threads/future/cons/move.cc: Likewise.
* testsuite/30_threads/future/cons/move_assign.cc: Likewise.
* testsuite/30_threads/future/members/45133.cc: Likewise.
* testsuite/30_threads/future/members/get.cc: Likewise.
* testsuite/30_threads/future/members/get2.cc: Likewise.
* testsuite/30_threads/future/members/share.cc: Likewise.
* testsuite/30_threads/future/members/valid.cc: Likewise.
* testsuite/30_threads/future/members/wait.cc: Likewise.
* testsuite/30_threads/future/members/wait_for.cc: Likewise.
* testsuite/30_threads/future/members/wait_until.cc: Likewise.
* testsuite/30_threads/future/requirements/explicit_instantiation.cc:
Likewise.
* testsuite/30_threads/headers/condition_variable/types_std_c++0x.cc:
Likewise.
* testsuite/30_threads/headers/future/types_std_c++0x.cc: Likewise.
* testsuite/30_threads/headers/mutex/types_std_c++0x.cc: Likewise.
* testsuite/30_threads/headers/thread/std_c++0x_neg.cc: Likewise.
* testsuite/30_threads/headers/thread/types_std_c++0x.cc: Likewise.
* testsuite/30_threads/lock/1.cc: Likewise.
* testsuite/30_threads/lock/2.cc: Likewise.
* testsuite/30_threads/lock/3.cc: Likewise.
* testsuite/30_threads/lock/4.cc: Likewise.
* testsuite/30_threads/lock_guard/cons/1.cc: Likewise.
* testsuite/30_threads/lock_guard/requirements/
explicit_instantiation.cc: Likewise.
* testsuite/30_threads/lock_guard/requirements/typedefs.cc: Likewise.
* testsuite/30_threads/mutex/cons/1.cc: Likewise.
* testsuite/30_threads/mutex/cons/assign_neg.cc: Likewise.
* testsuite/30_threads/mutex/cons/constexpr.cc: Likewise.
* testsuite/30_threads/mutex/cons/copy_neg.cc: Likewise.
* testsuite/30_threads/mutex/dest/destructor_locked.cc: Likewise.
* testsuite/30_threads/mutex/lock/1.cc: Likewise.
* testsuite/30_threads/mutex/native_handle/1.cc: Likewise.
* testsuite/30_threads/mutex/native_handle/typesizes.cc: Likewise.
* testsuite/30_threads/mutex/requirements/standard_layout.cc::
Likewise.
* testsuite/30_threads/mutex/requirements/typedefs.cc: Likewise.
* testsuite/30_threads/mutex/try_lock/1.cc: Likewise.
* testsuite/30_threads/mutex/try_lock/2.cc: Likewise.
* testsuite/30_threads/mutex/unlock/1.cc: Likewise.
* testsuite/30_threads/mutex/unlock/2.cc: Likewise.
* testsuite/30_threads/once_flag/cons/constexpr.cc: Likewise.
* testsuite/30_threads/packaged_task/49668.cc: Likewise.
* testsuite/30_threads/packaged_task/60564.cc: Likewise.
* testsuite/30_threads/packaged_task/cons/1.cc: Likewise.
* testsuite/30_threads/packaged_task/cons/2.cc: Likewise.
* testsuite/30_threads/packaged_task/cons/3.cc: Likewise.
* testsuite/30_threads/packaged_task/cons/56492.cc: Likewise.
* testsuite/30_threads/packaged_task/cons/alloc.cc: Likewise.
* testsuite/30_threads/packaged_task/cons/alloc2.cc: Likewise.
* testsuite/30_threads/packaged_task/cons/alloc_min.cc: Likewise.
* testsuite/30_threads/packaged_task/cons/assign_neg.cc: Likewise.
* testsuite/30_threads/packaged_task/cons/copy_neg.cc: Likewise.
* testsuite/30_threads/packaged_task/cons/move.cc: Likewise.
* testsuite/30_threads/packaged_task/cons/move_assign.cc: Likewise.
* testsuite/30_threads/packaged_task/members/at_thread_exit.cc:
Likewise.
* testsuite/30_threads/packaged_task/members/get_future.cc: Likewise.
* testsuite/30_threads/packaged_task/members/get_future2.cc: Likewise.
* testsuite/30_threads/packaged_task/members/invoke.cc: Likewise.
* testsuite/30_threads/packaged_task/members/invoke2.cc: Likewise.
* testsuite/30_threads/packaged_task/members/invoke3.cc: Likewise.
* testsuite/30_threads/packaged_task/members/invoke4.cc: Likewise.
* testsuite/30_threads/packaged_task/members/invoke5.cc: Likewise.
* testsuite/30_threads/packaged_task/members/reset.cc: Likewise.
* testsuite/30_threads/packaged_task/members/reset2.cc: Likewise.
* testsuite/30_threads/packaged_task/members/swap.cc: Likewise.
* testsuite/30_threads/packaged_task/members/valid.cc: Likewise.
* testsuite/30_threads/packaged_task/requirements/
explicit_instantiation.cc: Likewise.
* testsuite/30_threads/packaged_task/uses_allocator.cc: Likewise.
* testsuite/30_threads/promise/60966.cc: Likewise.
* testsuite/30_threads/promise/69106.cc: Likewise.
* testsuite/30_threads/promise/cons/1.cc: Likewise.
* testsuite/30_threads/promise/cons/alloc.cc: Likewise.
* testsuite/30_threads/promise/cons/alloc2.cc: Likewise.
* testsuite/30_threads/promise/cons/alloc_min.cc: Likewise.
* testsuite/30_threads/promise/cons/assign_neg.cc: Likewise.
* testsuite/30_threads/promise/cons/copy_neg.cc: Likewise.
* testsuite/30_threads/promise/cons/move.cc: Likewise.
* testsuite/30_threads/promise/cons/move_assign.cc: Likewise.
* testsuite/30_threads/promise/members/at_thread_exit.cc: Likewise.
* testsuite/30_threads/promise/members/at_thread_exit2.cc: Likewise.
* testsuite/30_threads/promise/members/get_future.cc: Likewise.
* testsuite/30_threads/promise/members/get_future2.cc: Likewise.
* testsuite/30_threads/promise/members/set_exception.cc: Likewise.
* testsuite/30_threads/promise/members/set_exception2.cc: Likewise.
* testsuite/30_threads/promise/members/set_value.cc: Likewise.
* testsuite/30_threads/promise/members/set_value2.cc: Likewise.
* testsuite/30_threads/promise/members/set_value3.cc: Likewise.
* testsuite/30_threads/promise/members/swap.cc: Likewise.
* testsuite/30_threads/promise/requirements/explicit_instantiation.cc:
* Likewise.
* testsuite/30_threads/promise/uses_allocator.cc: Likewise.

From-SVN: r263006

Remove dg-require-cstdint directive from tests

Tests for components which are no longer dependent on
_GLIBCXX_USE_C99_STDINT_TR1 do not need to require <cstdint>.

* testsuite/18_support/numeric_limits/char16_32_t.cc: Qualify names
from namespace std.
* testsuite/20_util/align/2.cc: Remove dg-require-cstdint directive.
* testsuite/20_util/duration/arithmetic/1.cc: Likewise.
* testsuite/20_util/duration/arithmetic/2.cc: Likewise.
* testsuite/20_util/duration/arithmetic/dr2020.cc: Likewise.
* testsuite/20_util/duration/arithmetic/dr934-1.cc: Likewise.
* testsuite/20_util/duration/arithmetic/dr934-2.cc: Likewise.
* testsuite/20_util/duration/comparison_operators/1.cc: Likewise.
* testsuite/20_util/duration/cons/1.cc: Likewise.
* testsuite/20_util/duration/cons/1_neg.cc: Likewise.
* testsuite/20_util/duration/cons/2.cc: Likewise.
* testsuite/20_util/duration/cons/54025.cc: Likewise.
* testsuite/20_util/duration/cons/dr974_neg.cc: Likewise.
* testsuite/20_util/duration/requirements/explicit_instantiation/
explicit_instantiation.cc: Likewise.
* testsuite/20_util/duration/requirements/typedefs_neg1.cc: Likewise.
* testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
* testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
* testsuite/20_util/make_signed/requirements/typedefs-4.cc: Likewise.
* testsuite/20_util/ratio/comparisons/comp1.cc: Likewise.
* testsuite/20_util/ratio/comparisons/comp2.cc: Likewise.
* testsuite/20_util/ratio/comparisons/comp3.cc: Likewise.
* testsuite/20_util/ratio/cons/cons1.cc: Likewise.
* testsuite/20_util/ratio/operations/45866.cc: Likewise.
* testsuite/20_util/ratio/operations/47913.cc: Likewise.
* testsuite/20_util/ratio/operations/53840.cc: Likewise.
* testsuite/20_util/ratio/operations/ops1.cc: Likewise.
* testsuite/20_util/shared_ptr/atomic/3.cc: Likewise.
* testsuite/20_util/system_clock/1.cc: Likewise.
* testsuite/20_util/time_point/1.cc: Likewise.
* testsuite/20_util/time_point/2.cc: Likewise.
* testsuite/20_util/time_point/3.cc: Likewise.
* testsuite/20_util/time_point/requirements/explicit_instantiation/
explicit_instantiation.cc: Likewise.
* testsuite/21_strings/basic_string/requirements/
explicit_instantiation/char16_t/1.cc: Likewise.
* testsuite/21_strings/basic_string/requirements/
explicit_instantiation/char32_t/1.cc: Likewise.
* testsuite/21_strings/basic_string_view/requirements/
explicit_instantiation/char16_t/1.cc: Likewise.
* testsuite/21_strings/basic_string_view/requirements/
explicit_instantiation/char32_t/1.cc: Likewise.
* testsuite/21_strings/char_traits/requirements/
explicit_instantiation/char16_t/1.cc: Likewise.
* testsuite/21_strings/char_traits/requirements/
explicit_instantiation/char32_t/1.cc: Likewise.
* testsuite/21_strings/headers/string/types_std_c++0x.cc: Likewise.
* testsuite/22_locale/codecvt/char16_t.cc: Likewise.
* testsuite/22_locale/codecvt/char32_t.cc: Likewise.
* testsuite/22_locale/codecvt/codecvt_utf16/requirements/1.cc:
Likewise.
* testsuite/22_locale/codecvt/codecvt_utf8/requirements/1.cc:
Likewise.
* testsuite/22_locale/codecvt/codecvt_utf8_utf16/requirements/1.cc:
Likewise.
* testsuite/22_locale/codecvt/utf8.cc: Likewise.
* testsuite/23_containers/vector/bool/72847.cc: Likewise.
* testsuite/23_containers/vector/debug/multithreaded_swap.cc:
Likewise.
* testsuite/experimental/string_view/requirements/
explicit_instantiation/char16_t/1.cc: Likewise.
* testsuite/experimental/string_view/requirements/
explicit_instantiation/char32_t/1.cc: Likewise.
* testsuite/ext/vstring/requirements/explicit_instantiation/char16_t/
1.cc: Likewise.
* testsuite/ext/vstring/requirements/explicit_instantiation/char32_t/
1.cc: Likewise.

From-SVN: r263005

Add missing checks for _GLIBCXX_USE_C99_STDINT_TR1

The throw_allocator extension depends on <tr1/random> which depends on
_GLIBCXX_USE_C99_STDINT_TR1.

The Transactional Memory support uses fixed-width integer types from
<stdint.h>.

* include/ext/throw_allocator.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(random_condition, throw_value_random, throw_allocator_random)
(std::hash<throw_value_random>): Do not define when <tr1/random> is
not usable.
* src/c++11/cow-stdexcept.cc [!_GLIBCXX_USE_C99_STDINT_TR1]: Do not
define transactional memory support when <stdint.h> is not usable.

From-SVN: r263004

Modify some library internals to work without <stdint.h>

std::__detail::__clp2 used uint_fast32_t and uint_fast64_t without
checking _GLIBCXX_USE_C99_STDINT_TR1 which was a potential bug. A
simpler implementation based on the new std::__ceil2 code performs
better and doesn't depend on <stdint.h> types.

std::align and other C++11 functions in <memory> where unnecessarily
missing when _GLIBCXX_USE_C99_STDINT_TR1 was not defined.

* include/bits/hashtable_policy.h (__detail::__clp2): Use faster
implementation that doesn't depend on <stdint.h> types.
* include/std/memory (align) [!_GLIBCXX_USE_C99_STDINT_TR1]: Use
std::size_t when std::uintptr_t is not usable.
[!_GLIBCXX_USE_C99_STDINT_TR1] (pointer_safety, declare_reachable)
(undeclare_reachable, declare_no_pointers, undeclare_no_pointers):
Define independent of _GLIBCXX_USE_C99_STDINT_TR1.

From-SVN: r263003

Remove char16_t and char32_t dependency on <stdint.h>

The char16_t and char32_t types are automatically defined by the
compiler and do not depend on support in <stdint.h>. The char_traits
specializations depend on uint_leastNN_t but can be made to work anyway
by using the predefined macros, or as a last resort make_unsigned.

* include/bits/basic_string.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(hash<u16string>, hash<u32string>): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1.
* include/bits/char_traits.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(char_traits<char16_t>, char_traits<char32_t>): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1. Use __UINT_LEAST16_TYPE__ and
__UINT_LEAST32_TYPE__ or make_unsigned when <stdint.h> is not usable.
* include/bits/codecvt.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(codecvt<char16_t, char, mbstate_t>)
(codecvt<char32_t, char, mbstate_t>)
(codecvt_byname<char16_t, char, mbstate_t>)
(codecvt_byname<char32_t, char, mbstate_t>): Remove dependency
on _GLIBCXX_USE_C99_STDINT_TR1.
* include/bits/locale_facets.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(_GLIBCXX_NUM_UNICODE_FACETS): Likewise.
* include/bits/stringfwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(char_traits<char16_t>, char_traits<char32_t>)
(basic_string<char16_t>, basic_string<char32_t>): Remove dependency
on _GLIBCXX_USE_C99_STDINT_TR1.
* include/experimental/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
(u16string_view, u32string_view, hash<u16string_view>)
(hash<u32string_view>, operator""sv(const char16_t, size_t))
(operator""sv(const char32_t, size_t)): Likewise.
* include/ext/vstring.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(hash<__u16vstring>, hash<__u32vstring>): Likewise.
* include/ext/vstring_fwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(__u16vstring, __u16sso_string, __u16rc_string, __u32vstring)
(__u32sso_string, __u32rc_string): Likewise.
* include/std/codecvt [!_GLIBCXX_USE_C99_STDINT_TR1] (codecvt_mode)
(codecvt_utf8, codecvt_utf16, codecvt_utf8_utf16): Likewise.
* include/std/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
(u16string_view, u32string_view, hash<u16string_view>)
(hash<u32string_view>, operator""sv(const char16_t, size_t))
(operator""sv(const char32_t, size_t)): Likewise.
* src/c++11/codecvt.cc: Likewise.
* src/c++98/locale_init.cc: Likewise.
* src/c++98/localename.cc: Likewise.

From-SVN: r263002

Remove <chrono> dependency on _GLIBCXX_USE_C99_STDINT_TR1

By adding fallback definitions of std::intmax_t and std::uintmax_t it's
possible to define <ratio> without _GLIBCXX_USE_C99_STDINT_TR1. This in
turn allows most of <chrono> to be defined, which removes the dependency
on _GLIBCXX_USE_C99_STDINT_TR1 for all of the C++11 concurrency features.

The compiler defines __INTMAX_TYPE__ and __UINTMAX_TYPE__
unconditionally so it should be safe to rely on them.

* include/bits/atomic_futex.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(__atomic_futex_unsigned_base): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1 macro.
* include/bits/unique_lock.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(unique_lock): Remove dependency on _GLIBCXX_USE_C99_STDINT_TR1.
* include/c_global/cstdint [!_GLIBCXX_USE_C99_STDINT_TR1] (intmax_t)
(uintmax_t): Define using predefined macros.
* include/std/chrono [!_GLIBCXX_USE_C99_STDINT_TR1] (duration)
(time_point, system_clock, high_resolution_clock, steady_clock): Remove
dependency on _GLIBCXX_USE_C99_STDINT_TR1 macro.
(nanoseconds, microseconds, milliseconds, seconds, minutes, hours):
[!_GLIBCXX_USE_C99_STDINT_TR1]: Define using __INT64_TYPE__ or
long long when <stdint.h> is not usable.
* include/std/condition_variable [!_GLIBCXX_USE_C99_STDINT_TR1]
(condition_variable, condition_variable_any): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1.
* include/std/future [!_GLIBCXX_USE_C99_STDINT_TR1] (future, promise)
(packaged_task, async): Likewise.
* include/std/mutex [!_GLIBCXX_USE_C99_STDINT_TR1] (recursive_mutex)
(timed_mutex, recursive_timed_mutex, try_lock, lock, scoped_lock)
(once_flag, call_once): Likewise.
* include/std/ratio [!_GLIBCXX_USE_C99_STDINT_TR1] (ratio): Likewise.
* include/std/shared_mutex [!_GLIBCXX_USE_C99_STDINT_TR1]
(shared_mutex, shared_timed_mutex, shared_lock): Likewise.
* include/std/thread [!_GLIBCXX_USE_C99_STDINT_TR1] (thread)
(this_thread::get_id, this_thread::yield, this_thread::sleep_for)
(this_thread::sleep_until): Likewise.
* src/c++11/chrono.cc: Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1 macro.
* src/c++11/condition_variable.cc: Likewise.
* src/c++11/futex.cc: Likewise.
* src/c++11/future.cc: Likewise.
* src/c++11/mutex.cc: Likewise.
* src/c++11/thread.cc: Likewise.
* testsuite/20_util/duration/literals/range_neg.cc: Adjust dg-error.
* testsuite/20_util/duration/requirements/typedefs_neg1.cc: Likewise.
* testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
* testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
* testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Likewise.
* testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Likewise.

From-SVN: r263001

xfail experimental/memory_resource/new_delete_resource.cc on 32-bit Solaris/x86 (PR libstdc++/77691)

PR libstdc++/77691
* testsuite/experimental/memory_resource/new_delete_resource.cc:
xfail execution on 32-bit Solaris/x86.

From-SVN: r263000

Add linker_output as prefix for LTO temps (PR lto/86548).

2018-07-26  Martin Liska  <mliska@suse.cz>

        PR lto/86548
* lto-wrapper.c: Add linker_output as prefix
        for ltrans_output_file.
2018-07-26  Martin Liska  <mliska@suse.cz>

        PR lto/86548
* libiberty.h (make_temp_file_with_prefix): New function.
2018-07-26  Martin Liska  <mliska@suse.cz>

        PR lto/86548
* make-temp-file.c (TEMP_FILE): Remove leading 'cc'.
(make_temp_file): Call make_temp_file_with_prefix with
        first argument set to NULL.
(make_temp_file_with_prefix): Support also prefix.

From-SVN: r262999

optimize std::vector move assignment

2018-07-26  Marc Glisse  <marc.glisse@inria.fr>

* include/bits/stl_vector.h (_Vector_impl_data::_M_copy_data): New.
(_Vector_impl_data::_M_swap_data): Use _M_copy_data.
(vector::_M_move_assign): Reorder the swaps.

From-SVN: r262998

[libgomp, nvptx] Add error with recompilation hint for launch failure

Currently, when a kernel is lauched with too many workers, it results in a cuda
launch failure.  This is triggered f.i. for parallel-loop-1.c at -O0 on a Quadro
M1200.

This patch detects this situation, and errors out with a hint on how to fix it.

Build and reg-tested on x86_64 with nvptx accelerator.

2018-07-26  Cesar Philippidis  <cesar@codesourcery.com>
    Tom de Vries  <tdevries@suse.de>

* plugin/plugin-nvptx.c (nvptx_exec): Error if the hardware doesn't have
sufficient resources to launch a kernel, and give a hint on how to fix
it.

Co-Authored-By: Tom de Vries <tdevries@suse.de>
From-SVN: r262997

[libgomp, nvptx] Move device property sampling from nvptx_exec to nvptx_open

Move sampling of device properties from nvptx_exec to nvptx_open, and assume
the sampling always succeeds.  This simplifies the default dimension
initialization code in nvptx_open.

2018-07-26  Cesar Philippidis  <cesar@codesourcery.com>
    Tom de Vries  <tdevries@suse.de>

* plugin/plugin-nvptx.c (struct ptx_device): Add warp_size,
max_threads_per_block and max_threads_per_multiprocessor fields.
(nvptx_open_device): Initialize new fields.
(nvptx_exec): Use num_sms, and new fields.

Co-Authored-By: Tom de Vries <tdevries@suse.de>
From-SVN: r262996

combine: Another hard register problem (PR85805)

The current code in reg_nonzero_bits_for_combine allows using the
reg_stat info when last_set_mode is a different integer mode.  This is
completely wrong for non-pseudos.  For example, as in the PR, a value
in a DImode hard register is set by eight writes to its constituent
QImode parts.  The value written to the DImode is not the same as that
written to the lowest-numbered QImode!

PR rtl-optimization/85805
* combine.c (reg_nonzero_bits_for_combine): Only use the last set
value for hard registers if that was written in the same mode.

From-SVN: r262994

gcov: Fix wrong usage of NAN in statistics (PR gcov-profile/86536).

2018-07-26  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/86536
* gcov.c (format_gcov): Use printf format %.*f directly
        and do not handle special values.
2018-07-26  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/86536
* gcc.misc-tests/gcov-pr86536.c: New test.

From-SVN: r262991

[libgomp, openacc, testsuite] Fix async logic in lib-12.f90

In testcase lib-12.f90, all acc_async_test calls are placed in a location
where they are not guaranteed to succeed, which explains why there's an xfail
for the lower optimization levels.

This patch fixes the problem by moving the acc_async_test calls to the correct
locations.

Reg-tested on x86_64 with nvptx accelerator.

2018-07-26  Tom de Vries  <tdevries@suse.de>

* testsuite/libgomp.oacc-fortran/lib-12.f90: Move acc_async_test calls
to correct locations.  Remove xfail.

From-SVN: r262990

[libgomp, openacc, testsuite] Fix async/wait logic in lib-13.f90

The purpose of the lib-13.f90 test-case is to test acc_wait_all_async.  The
test indeed calls acc_wait_all_async, but then subsequentlys calls
acc_wait_all, so the acc_wait_all_async functionality is not tested.
Furthermore, all acc_async_test calls are placed in a location where they are
not guaranteed to succeed, which explains why there's an xfail for the lower
optimization levels.

This patch fixes the problems by replacing acc_wait_all with an acc_wait on
the async id used for the acc_wait_all_async call, and moving the
acc_async_test calls to the correct locations.

Reg-tested on x86_64 with nvptx accelerator.

2018-07-26  Tom de Vries  <tdevries@suse.de>

* testsuite/libgomp.oacc-fortran/lib-13.f90: Replace acc_wait_all with
acc_wait.  Move acc_async_test calls to correct locations.  Remove
xfail.

From-SVN: r262989

Daily bump.

From-SVN: r262988

PR libstdc++/86676 another alignment fix for test

PR libstdc++/86676
* testsuite/20_util/monotonic_buffer_resource/release.cc: Request
same alignment for post-release allocation.

From-SVN: r262984