2015-11-18  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_aggr.adb (Is_Completely_Hidden_Discriminant): New routine.
	(Init_Hidden_Discriminants): Code reformatting. Do not initialize
	a completely hidden discriminant.
	* a-interr.ads (Get_CPU): Added SPARK_Mode, Volatile_Function
	and Global aspects on the function.

2015-11-18  Ed Schonberg  <schonberg@adacore.com>

	* exp_intr.adb (Expand_Unc_Deallocation): If the designated
	type is a concurrent type, the deallocation applies to the
	corresponding record type, or to its class-wide type if the type
	is tagged.

From-SVN: r230535

2015-11-18  Doug Rupp  <rupp@adacore.com>

	* s-parame-vxworks.adb: Reduce default stack size for stack
	limit check to a reasonable value
	* s-tpopsp-vxworks.adb: Make Stack_Limit a task variable for vx5 and
	vxmils.

From-SVN: r230534

2015-11-18  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch5.adb (Analyze_Assignment): Diagnose assignment where
	left-hand side has a limited view of a class-wide type.
	* sem_ch6.adb (Detected_And_Exchange): Do not install a non-limited
	view if the scope of the type of the formal is visible through
	a limited_with_clause, even if the non-limited view is available.

2015-11-18  Emmanuel Briot  <briot@adacore.com>

	* s-pooglo.ads: Make Global_Pool_Object aliased.

2015-11-18  Ed Schonberg  <schonberg@adacore.com>

	* sem_attr.adb (Analyze_Attribute, case 'Access): If the prefix
	is an expression function, do not analyze the generated body if
	the current scope is not the scope of the expression function,
	as may happen if the attribute is an actual in an instantiation.
	* sem_ch10.adb, sem_ch12.adb, a-stzmap.adb, s-soflin.adb,
	a-stwima.adb: Fix typos.

2015-11-18  Arnaud Charlet  <charlet@adacore.com>

	* exp_ch11.adb (Expand_N_Exception_Declaration): No-op when
	generating C code.

2015-11-18  Vincent Celier  <celier@adacore.com>

	* g-comlin.adb (Find_Longest_Matching_Switch): Do not take into
	account a switch ending with '=' when the actual command line
	switch is not followed with a space or '='.

2015-11-18  Ed Schonberg  <schonberg@adacore.com>

	* sem_res.adb (Resolve_Explicit_Dereference): Do not add an access
	check if the type of the prefix is known to exclude null.
	* a-coinve.adb (Get_Element_Access): The function returns an
	access type that excludes null, so add an explicit check for
	a null element pointer, which is created when Insert_Spaces is
	called on an indefinite vector container.

From-SVN: r230533

2015-11-18  Hristian Kirtchev  <kirtchev@adacore.com>

	PR ada/66242

	* exp_ch3.adb (Default_Initialize_Object): Reimplemented. Abort
	defer / undefer pairs are now encapsulated in a block with
	an AT END handler. Partial finalization now takes restriction
	No_Exception_Propagation into account when generating blocks.
	* exp_ch7.adb Various reformattings.
	(Create_Finalizer): Change
	the generation of abort defer / undefer pairs and explain the
	lack of an AT END handler.
	(Process_Transient_Objects): Add generation of abort defer/undefer
	pairs.
	* exp_ch9.adb Various reformattings.
	(Build_Protected_Subprogram_Body): Use
	Build_Runtime_Call to construct a call to Abort_Defer.
	(Build_Protected_Subprogram_Call_Cleanup): Use
	Build_Runtime_Call to construct a call to Abort_Undefer.
	(Expand_N_Asynchronous_Select): Use Build_Runtime_Call to
	construct a call to Abort_Defer.
	* exp_intr.adb (Expand_Unc_Deallocation): Abort defer
	/ undefer pairs are now encapsulated in a block with
	an AT END handler. Finalization now takes restriction
	No_Exception_Propagation into account when generating blocks.
	* exp_util.ads, exp_util.adb (Wrap_Cleanup_Procedure): Removed.

From-SVN: r230531

re PR tree-optimization/68157 (internal compiler error: in reassoc_stmt_dominates_stmt_p, at tree-ssa-reassoc.c:1287)

	PR tree-optimization/68157
	* tree-ssa-reassoc.c (attempt_builtin_powi): Set uid of
	pow_stmt or mul_stmt from stmt's uid.
	(reassociate_bb): Set uid of mul_stmt from stmt's uid.

	* g++.dg/opt/pr68157.C: New test.

From-SVN: r230530

2015-11-18  Arnaud Charlet  <charlet@adacore.com>

	* switch-c.adb (Scan_Front_End_Switches): Add a check requiring
	-gnatc with -gnateg.

2015-11-18  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch7.adb (Uninstall_Declarations): Before swapping private
	and full views, ensure that the potential use visbility of the
	two views is consistent.

2015-11-18  Doug Rupp  <rupp@adacore.com>

	* s-parame-vxworks.adb: Increase default stack size for targets
	using stack limit checking.

2015-11-18  Jose Ruiz  <ruiz@adacore.com>

	* a-interr.adb, a-interr.ads (Ada.Interrupts.Get_CPU): Add this
	function that was added to Ada 2005 returning the processor where
	interrupt handlers execute.

2015-11-18  Tristan Gingold  <gingold@adacore.com>

	* exp_ch9.adb (Is_Pure_Barrier): Handle expanded component
	declaration of a protected definition.

From-SVN: r230529

2015-11-18  Ed Falis  <falis@adacore.com>

	* s-soflin.adb, s-stchop-vxworks.adb: Code clean ups.

2015-11-18  Gary Dismukes  <dismukes@adacore.com>

	* bcheck.adb: Minor editorial changes.

From-SVN: r230528

2015-11-18  Arnaud Charlet  <charlet@adacore.com>

	* interfac.ads (Unsigned_24): New type.
	* sem_ch13.adb (Validate_Unchecked_Conversion): Disable error on
	unconstrained arrays in Relaxed_RM_Semantics mode.

2015-11-18  Vincent Celier  <celier@adacore.com>

	* bcheck.adb (Check_Consistent_Dynamic_Elaboration_Checking): No
	warning is withed unit is the interface of a Stand-Alone Library.

From-SVN: r230527

2015-11-18  Thomas Quinot  <quinot@adacore.com>

	* s-os_lib.ads, s-os_lib.adb(Normalize_Pathname): Support the case of
	an unresolved Directory argument, by recursively resolving it
	against the current dir.

2015-11-18  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch6.adb (Process_Formals): A function declaration that
	returns a class-wide type must have freeing deferred, so that it
	is not frozen before the class-wide type and its root type are
	frozen. This is significant when there may be a limited view of
	the class_wide type in another package.

From-SVN: r230526

2015-11-18  Hristian Kirtchev  <kirtchev@adacore.com>

	* einfo.adb (Has_Non_Null_Refinement): Rename to
	Has_Non_Null_Visible_Refinement.
	(Has_Null_Refinement): Rename to Has_Null_Visible_Refinement.
	* einfo.ads Update the documentation of
	attribute Has_Non_Null_Refinement and attribute Has_Null_Refinement.
	(Has_Non_Null_Refinement): Rename to Has_Non_Null_Visible_Refinement
	and update occurrences in entities.
	(Has_Null_Refinement): Rename to Has_Null_Visible_Refinement and update
	occurrences in entities.
	* sem_prag.adb (Check_In_Out_States): Update the calls to
	Has_[Non_]Null_Refinement.
	(Check_Input_States): Update the
	calls to Has_[Non_]Null_Refinement.
	(Check_Output_States): Update the calls to Has_[Non_]Null_Refinement.
	(Check_Proof_In_States): Update the calls to Has_[Non_]Null_Refinement.
	(Collect_Global_Item): Update the calls to Has_[Non_]Null_Refinement.
	(Is_Null_Refined_State): Update the calls to Has_[Non_]Null_Refinement.
	(Match_Item): Update the calls to Has_[Non_]Null_Refinement.
	* sem_util.adb (Has_Non_Null_Refinement): New routine.
	(Has_Null_Refinement): New routine.
	* sem_util.ads (Has_Non_Null_Refinement): New routine.
	(Has_Null_Refinement): New routine.

2015-11-18  Gary Dismukes  <dismukes@adacore.com>

	* exp_util.adb: Minor reformatting and typo fixes.

From-SVN: r230525

2015-11-18  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_ch4.adb: Minor reformatting.

2015-11-18  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_util.adb (Expand_Subtype_From_Expr): Add new formal
	parameter Related_Id and propagate it to Make_Subtype_From_Expr.
	(Make_Subtype_From_Expr): Add new formal parameter
	Related_Id. Create external entities when requested by the caller.
	* exp_util.ads (Expand_Subtype_From_Expr): Add new formal
	parameter Related_Id. Update the comment on usage.
	(Make_Subtype_From_Expr): Add new formal parameter
	Related_Id. Update the comment on usage.
	* sem_ch3.adb (Analyze_Object_Declaration): Add local variable
	Related_Id. Generate an external constrained subtype when the
	object is a public symbol.

2015-11-18  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_prag.adb (Analyze_Pragma): Update the grammars of pragmas
	Abstract_State, Depends, Global, Initializes, Refined_Depends,
	Refined_Global and Refined_State.

From-SVN: r230524

2015-11-18  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_util.adb (Has_Full_Default_Initialization):
	Perform the test for the presence of pragma
	Default_Initial_Condition prior to the specialized type
	checks. Add a missing case where the lack of a pragma argument
	yields full default initialization.

2015-11-18  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_res.adb (Resolve_Entity_Name): Do not check
	for elaboration issues when a variable appears as the name of
	an object renaming declaration as this constitutes an aliasing,
	not a read.

2015-11-18  Ed Schonberg  <schonberg@adacore.com>

	* checks.adb (Overlap_Check): An actual that is an aggregate
	cannot overlap with another actual, and no check should be
	generated for it.
	* targparm.ads: Fix typos.

2015-11-18  Pascal Obry  <obry@adacore.com>

	* adaint.c: Routine __gnat_killprocesstree only implemented on
	Linux and Windows.

2015-11-18  Pascal Obry  <obry@adacore.com>

	* g-ctrl_c.adb: Minor style fixes.

From-SVN: r230523

2015-11-18  Pascal Obry  <obry@adacore.com>

	* adaint.c, s-os_lib.adb, s-os_lib.ads (Kill_Process_Tree): New.

2015-11-18  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_util.adb (Check_Nonvolatile_Function_Profile): Place the error
	message concerning the return type on the result definition.
	(Is_Volatile_Function): A function with a parameter of a protected
	type is a protected function if it is defined within a protected
	definition.

2015-11-18  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch4.adb (Try_Container_Indexing): When building the
	parameter list for the function call on indexing functions,
	preserve overloading of the parameters, which may themselves be
	generalized indexing operations.

From-SVN: r230522

From-SVN: r230521

	* haifa-sched.c (haifa_finish_h_i_d): Release reg_set_list.

From-SVN: r230520

	* tree-ssa-uninit.c (convert_control_dep_chain_into_preds):
	Fix GNU coding style.
	(find_def_preds): Use auto_vec.
	(destroy_predicate_vecs): Change signature of the function.
	(prune_uninit_phi_opnds_in_unrealizable_paths): Use the
	new signature.
	(simplify_preds_4): Use destroy_predicate_vecs instread of
	just releasing preds vector.
	(normalize_preds): Likewise.
	(is_use_properly_guarded): Use new signature of
	destroy_predicate_vecs.
	(find_uninit_use): Likewise.

From-SVN: r230519

2015-11-18  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/67790
	* tree-vect-loop.c (vect_is_simple_reduction_1): Remove
	IL rewrite for MINUS_EXPR reductions, rename back to ...
	(vect_is_simple_reduction): ... this, removing the wrapper.
	(vect_force_simple_reduction): Adjust.
	(vectorizable_reduction): Adjust reduc_index for MINUS_EXPR
	reductions and make use if reduc_index in all places.  For
	the final reduction of MINUS_EXPR use PLUS_EXPR.

	* gcc.dg/vect/pr67790.c: New testcase.

From-SVN: r230518

From-SVN: r230516

From-SVN: r230515

POWERPC64_TOC_POINTER_ALIGNMENT

A default of -z relro (as on Fedora) defeats the deliberate
mis-alignment of .got in the testcase.

	* configure.ac (POWERPC64_TOC_POINTER_ALIGNMENT): Pass -z norelro
	to ld.
	* configure: Regenerate.

From-SVN: r230509

	PR bootstrap/68346

	* typeck.c (build_static_cast_1): Force a NOP when converting to
	the same type.

From-SVN: r230508

	* cp-tree.h (LITERAL_ZERO_P): Remove.
	* parser.c (cp_parser_postfix_expression, literal_zeros)
	(cp_parser_parenthesized_expression_list): Don't mess with it.

From-SVN: r230507

	* parser.c (cp_parser_unary_expression): Fold -constant here.
	* typeck.c (cp_build_unary_op): Not here.

From-SVN: r230506

2015-11-17  Tom de Vries  <tom@codesourcery.com>

	* tree-ssa-loop.c (pass_tree_loop_init::execute): Improve comments.

From-SVN: r230505

2015-11-17  Tom de Vries  <tom@codesourcery.com>

	* tree-scalar-evolution.c (scev_const_prop): Dump details if replacing
	uses of ssa_name with constant.

From-SVN: r230504

2015-11-17  Tom de Vries  <tom@codesourcery.com>

	* tree-ssa-ccp.c (do_ssa_ccp): Clear LOOP_CLOSED_SSA in loops state if
	something changed.

From-SVN: r230503

2015-11-17  Tom de Vries  <tom@codesourcery.com>

	* cfgloop.h (struct loop): Add in_oacc_kernels_region field.
	* omp-low.c (mark_loops_in_oacc_kernels_region): New function.
	(expand_omp_target): Call mark_loops_in_oacc_kernels_region.

From-SVN: r230502

	* regrename.c (regrename_find_superclass): New function, code moved
	from ...
	(rename_chains): ... here.  Call it.
	* regrename.h (regrename_find_superclass): Declare.

From-SVN: r230501

	* regrename.c (record_out_operands): Terminate earlyclobbered
	operands here.

From-SVN: r230500

	PR target/66785
	* regrename.c (record_operand_use): Keep track of failed operands
	and stop appending if we see any.
	* regrename.h (struct operand_rr_info): Add a failed field and shrink
	n_chains to short.

From-SVN: r230499

2015-11-17  Sandra Loosemore  <sandra@codesourcery.com>

	PR 48568
	* doc/extend.texi (Common Function Attributes) [visibility]:
	Add cross-references to matching variable and type attributes.
	(Common Variable Attributes) [visibility]: Add missing entry.

From-SVN: r230498

gcc/c/ChangeLog:
	* c-parser.c (set_c_expr_source_range): Bulletproof both
	overloaded implementations against NULL expr->value.
	(c_parser_braced_init): Set src_range for "ret" to a sane pair of
	values.
	(c_parser_unary_expression): Likewise when handling addresses of
	labels.
	(c_parser_postfix_expression): Likewise for statement expressions,
	for __FUNCTION__, __PRETTY_FUNCTION_ and __func__ keywords, for
	__builtin_va_arg, and for __builtin_offset_of.
	(c_parser_postfix_expression_after_paren_type): Initialize expr's
	src_range using the range of the braced initializer.
	(c_parser_transaction_expression): Set src_range for "ret" to a
	sane pair of values.

gcc/testsuite/ChangeLog:
	* gcc.dg/plugin/diagnostic-test-expressions-1.c (vector): New
	macro.
	(test_braced_init): New function.
	(test_statement_expression): New function.
	(test_address_of_label): New function.
	(test_transaction_expressions): New function.
	(test_keywords): New function.
	(test_builtin_va_arg): New function.
	(test_builtin_offsetof): New function.
	* lib/multiline.exp (_build_multiline_regex): Escape braces.

From-SVN: r230497

	PR libstdc++/66059
	* include/std/utility (_Build_index_tuple): Optimise.

From-SVN: r230496

2015-11-17  Steven G. Kargl  <kargl@gcc.gnu.org>

	* primary.c (gfc_match_structure_constructor): Fix whitespace.

From-SVN: r230495

After the previous patches it's no longer necessary for
TARGET_BUILTIN_VECTORIZED_FUNCTION to return functions that
map to the vector optab of the original operation.  We'll use
a vector form of the internal function instead.

Tested on powerpc64-linux-gnu.

gcc/
	* config/rs6000/rs6000.c (rs6000_builtin_vectorized_function): Remove
	entries that map directly to optabs.

From-SVN: r230494

After the previous patches it's no longer necessary for
TARGET_BUILTIN_VECTORIZED_FUNCTION to return functions that
map to the vector optab of the original operation.  We'll use
a vector form of the internal function instead.

Tested on x86_64-linux-gnu.

gcc/
	* config/i386/i386.c (ix86_builtin_vectorized_function): Remove
	entries that map directly to optabs.

From-SVN: r230493

This patch tries to vectorize built-in and internal functions as
internal functions first, falling back on the current built-in
target hooks otherwise.

This means that we'll automatically pick up vector versions of optabs
without the target having to implement any special hooks.  E.g. we'll
use V4SF sqrt if the target defines a "sqrtv4sf2" optab.  As well as
being simpler, it means that the target-independent code has more
idea what the vectorized function does.

Tested on x86_64-linux-gnu, aarch64-linux-gnu, arm-linux-gnu and
powerpc64-linux-gnu.

gcc/
	* internal-fn.h (direct_internal_fn_info): Add vectorizable flag.
	* internal-fn.c (direct_internal_fn_array): Update accordingly.
	* tree-vectorizer.h (vectorizable_function): Delete.
	* tree-vect-stmts.c: Include internal-fn.h.
	(vectorizable_internal_function): New function.
	(vectorizable_function): Inline into...
	(vectorizable_call): ...here.  Explicitly reject calls that read
	from or write to memory.  Try using an internal function before
	falling back on the old vectorizable_function behavior.

From-SVN: r230492

This patch replaces the fndecl argument to builtin_vectorized_function
with a combined_fn and gets the vectoriser to call it for internal
functions too.  The patch also moves vectorisation of machine-specific
built-ins to a new hook, builtin_md_vectorized_function.

Tested on x86_64-linux-gnu, aarch64-linux-gnu, arm-linux-gnu and
powerpc64-linux-gnu.

gcc/
	* target.def (builtin_vectorized_function): Take a combined_fn (in
	the form of an unsigned int) rather than a function decl.
	(builtin_md_vectorized_function): New.
	* targhooks.h (default_builtin_vectorized_function): Replace the
	fndecl argument with an unsigned int.
	(default_builtin_md_vectorized_function): Declare.
	* targhooks.c (default_builtin_vectorized_function): Replace the
	fndecl argument with an unsigned int.
	(default_builtin_md_vectorized_function): New function.
	* doc/tm.texi.in (TARGET_VECTORIZE_BUILTIN_MD_VECTORIZED_FUNCTION):
	New hook.
	* doc/tm.texi: Regenerate.
	* tree-vect-stmts.c (vectorizable_function): Update call to
	builtin_vectorized_function, also passing internal functions.
	Call builtin_md_vectorized_function for target-specific builtins.
	* config/aarch64/aarch64-protos.h
	(aarch64_builtin_vectorized_function): Replace fndecl argument
	with an unsigned int.
	* config/aarch64/aarch64-builtins.c: Include case-cfn-macros.h.
	(aarch64_builtin_vectorized_function): Update after above changes.
	Use CASE_CFN_*.
	* config/arm/arm-protos.h (arm_builtin_vectorized_function): Replace
	fndecl argument with an unsigned int.
	* config/arm/arm-builtins.c: Include case-cfn-macros.h
	(arm_builtin_vectorized_function): Update after above changes.
	Use CASE_CFN_*.
	* config/i386/i386.c: Include case-cfn-macros.h
	(ix86_veclib_handler): Take a combined_fn rather than a
	built_in_function.
	(ix86_veclibabi_svml, ix86_veclibabi_acml): Likewise.  Use
	mathfn_built_in rather than calling builtin_decl_implicit directly.
	(ix86_builtin_vectorized_function) Update after above changes.
	Use CASE_CFN_*.
	* config/rs6000/rs6000.c: Include case-cfn-macros.h
	(rs6000_builtin_vectorized_libmass): Replace fndecl argument
	with a combined_fn.  Use CASE_CFN_*.  Use mathfn_built_in rather
	than calling builtin_decl_implicit directly.
	(rs6000_builtin_vectorized_function): Update after above changes.
	Use CASE_CFN_*.  Move BUILT_IN_MD to...
	(rs6000_builtin_md_vectorized_function): ...this new function.
	(TARGET_VECTORIZE_BUILTIN_MD_VECTORIZED_FUNCTION): Define.

From-SVN: r230491

In practice all targets that can vectorise sqrt define the appropriate
sqrt<mode>2 optab.  The only case where this isn't immediately obvious
is the libmass support in rs6000.c, but Mike Meissner said that it shouldn't
be exercised for sqrt.

This patch therefore uses the internal function interface instead of
going via the target hook.

Tested on x86_64-linux-gnu, aarch64-linux-gnu, arm-linux-gnueabi and
powerpc64-linux-gnu.

gcc/
	* tree-vect-patterns.c: Include internal-fn.h.
	(vect_recog_pow_pattern): Use IFN_SQRT instead of BUILT_IN_SQRT*.

From-SVN: r230490

Nothing uses these macros and removing them makes it more likely
that future code will use CASE_CFN_* instead.

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

gcc/
	* tree.h (BUILTIN_EXP10_P, BUILTIN_EXPONENT_P, BUILTIN_SQRT_P)
	(BUILTIN_CBRT_P, BUILTIN_ROOT_P): Delete.

From-SVN: r230489