2014-07-31  Marc Glisse  <marc.glisse@inria.fr>

	PR c++/60517
gcc/c/
	* c-typeck.c (c_finish_return): Return 0 instead of the address of
	a local variable.
gcc/cp/
	* typeck.c (maybe_warn_about_returning_address_of_local): Return
	whether it is returning the address of a local variable.
	(check_return_expr): Return 0 instead of the address of a local
	variable.
gcc/c-family/
	* c.opt (-Wreturn-local-addr): Move to common.opt.
gcc/
	* common.opt (-Wreturn-local-addr): Moved from c.opt.
	* gimple-ssa-isolate-paths.c: Include diagnostic-core.h and intl.h.
	(isolate_path): New argument to avoid inserting a trap.
	(find_implicit_erroneous_behaviour): Handle returning the address
	of a local variable.
	(find_explicit_erroneous_behaviour): Likewise.
gcc/testsuite/
	* c-c++-common/addrtmp.c: New file.
	* c-c++-common/uninit-G.c: Adapt.

From-SVN: r213323

2014-07-31  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch13.adb (Build_Invariant_Procedure): If body of procedure
	is already present, nothing to do.
	* exp_ch3.adb (Build_Component_Invariant_Call): For an access
	component, check whether the access type has an invariant before
	checking the designated type.
	(Build_Record_Invariant_Proc): Change suffix of generated
	name to prevent ambiguity when record type has invariants
	in addition to those of components, and two subprograms are
	constructed. Consistent with handling of array types.
	(Insert_Component_Invariant_Checks): Build invariant procedure
	body when one has not been created yet, in the case of composite
	types that are completions and whose full declarations carry
	invariants.

From-SVN: r213322

2014-07-31  Bingfeng Mei <bmei@broadcom.com>

	PR lto/61868
	* toplev.c (init_random_seed): Move piece of code never called to
	set_random_seed.
	(set_random_seed): see above.
	
	* gcc.dg/pr61868.c: New test.

From-SVN: r213321

2014-07-31  Tom de Vries  <tom@codesourcery.com>

	* tree-ssa-loop.c (pass_tree_loop_init::execute): Remove dead code.

From-SVN: r213319

gcc/
	* ira.c (insn_contains_asm_1, insn_contains_asm): Delete.
	(compute_regs_asm_clobbered): Use extract_asm_operands instead.

From-SVN: r213318

2014-07-31  Richard Biener  <rguenther@suse.de>

	* data-streamer.h (streamer_write_data_stream): Declare here,
	renamed from ...
	* lto-streamer.h (lto_output_data_stream): ... this.  Remove.
	* lto-cgraph.c (lto_output_node): Adjust.
	(lto_output_varpool_node): Likewise.
	* data-streamer-out.c (streamer_string_index): Likewise.
	(streamer_write_data_stream, lto_append_block): Move from ...
	* lto-section-out.c (lto_output_data_stream,
	lto_append_block): ... here.

From-SVN: r213317

From-SVN: r213316

	PR lto/53808
	PR c++/61659
	* pt.c (push_template_decl_real): Don't set DECL_COMDAT on friends.

From-SVN: r213311

re PR c++/57397 (Off-by-one error in diagnostic when calling variadic function template with too few arguments)

/cp
2014-07-30  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/57397
	* pt.c (unify_arity): Add boolean parameter.
	(unify_too_few_arguments): Likewise.
	(type_unification_real): Diagnose correctly insufficient
	arguments in the presence of trailing variadic parameters;
	deducing multiple trailing packs as empty is fine.

/testsuite
2014-07-30  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/57397
	* g++.dg/cpp0x/vt-57397-1.C: New.
	* g++.dg/cpp0x/vt-57397-2.C: Likewise.

From-SVN: r213310

	* configure.ac: Also check for popen.
	* tree-loop-distribution.c (dot_rdg): Autoconfize popen use.
	* configure: Regenerate.
	* config.in:  Regenerate.

From-SVN: r213309

	PR c++/61659
	PR c++/61687
Revert:
gcc/c-family/
	* c.opt (-fuse-all-virtuals): New.
gcc/cp/
	* decl2.c (mark_all_virtuals): New variable.
	(maybe_emit_vtables): Check it instead of flag_devirtualize.
	(cp_write_global_declarations): Set it and give helpful diagnostic
	if it introduces errors.
	* class.c (finish_struct_1): Check it.

From-SVN: r213308

	PR lto/53808
	PR c++/61659
	* pt.c (push_template_decl_real): Set DECL_COMDAT on templates.
	(check_explicit_specialization): Clear it on specializations.
	* decl.c (duplicate_decls, start_decl): Likewise.
	(grokmethod, grokfndecl): Set DECL_COMDAT on inlines.
	* method.c (implicitly_declare_fn): Set DECL_COMDAT.  Determine
	linkage after setting the appropriate flags.
	* tree.c (decl_linkage): Don't check DECL_COMDAT.
	* decl2.c (mark_needed): Mark clones.
	(import_export_decl): Not here.

From-SVN: r213307

2014-07-30  Martin Jambor  <mjambor@suse.cz>

	* tree-sra.c (sra_ipa_modify_assign): Change type of the first
	parameter to gimple.

From-SVN: r213306

s390.c (s390_emit_tpf_eh_return): Pass original return address as second parameter to __tpf_eh_return routine.

gcc/

2014-07-30  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

	* config/s390/s390.c (s390_emit_tpf_eh_return): Pass original return
	address as second parameter to __tpf_eh_return routine.

libgcc/

2014-07-30  J. D. Johnston  <jjohnst@us.ibm.com>

	* config/s390/tpf-unwind.h: Include <stdbool.h>.
	(__tpf_eh_return): Add original return address as second parameter.
	Handle cases where unwinder routines were called directly, instead
	of from within the C++ library.

From-SVN: r213305

Applied for Jiong.

2014-07-30  Jiong Wang  <jiong.wang@arm.com>

	* config/arm/arm.c (arm_get_frame_offsets): Adjust condition for
	Thumb2.

From-SVN: r213304

From-SVN: r213303

From-SVN: r213302

2014-07-30  Thomas Quinot  <quinot@adacore.com>

	* gnat_rm.texi: Minor doc fixes.

2014-07-30  Robert Dewar  <dewar@adacore.com>

	* a-rbtgbo.adb, sem_ch13.adb: Minor reformatting.

2014-07-30  Vincent Celier  <celier@adacore.com>

	* errutil.adb (Set_Msg_Text): Process tilde ('~'): no processing
	of error message.
	* prj-nmsc.adb (Locate_Directory): Use a tilde ('~') in the
	message to report that a directory cannot be created, to avoid
	processing of the directory path that may contains special
	insertion characters.

From-SVN: r213301

2014-07-30  Ed Schonberg  <schonberg@adacore.com>

	* a-crdlli.ads: Place declaration of Empty_List after full type
	declaration for Curosr, to prevent freezing error.

2014-07-30  Robert Dewar  <dewar@adacore.com>

	* get_targ.adb: Minor code reorganization.
	* prj-proc.adb, prj-proc.ads, get_targ.ads, sem_ch6.adb: Minor
	reformatting.

2014-07-30  Ed Schonberg  <schonberg@adacore.com>

	* a-cbhase.adb: a-cbhase.adb (Insert): Raise Constraint_Error,
	not Program_Error, when attempting to remove an element not in
	the set. This is the given semantics for all set containers.

2014-07-30  Ed Schonberg  <schonberg@adacore.com>

	* a-rbtgbo.adb: -rbtgbo.adb (Delete_Node_Sans_Free): If
	element is not present in tree return rather than violating
	an assertion. Constraint_Error will be raised in the caller if
	element is not in the container.

From-SVN: r213300

2014-07-30  Arnaud Charlet  <charlet@adacore.com>

	* set_targ.adb (Read_Target_Dependent_Values): New subprogram.
	(elab body): Add provision for default target config file.
	* get_targ.ads, get_targ.adb (Get_Back_End_Config_File): New subprogram.

2014-07-30  Ed Schonberg  <schonberg@adacore.com>

	* a-cbhase.adb (Delete): Raise Constraint_Error, not Program_Error,
	when attempting to remove an element not in the set. This is
	the given semantics for all set containers.
	* a-cborse.adb (Delete): Attempt removal first, to check for
	tampering, before checking whether this is an attempt to
	delete a  non-existing element, and in fthe latter case raise
	Constraint_Error.

2014-07-30  Vincent Celier  <celier@adacore.com>

	* prj-proc.adb (Recursive_Process): Do not create a new
	Project_Id if the project is already in the list of projects of
	the tree.

2014-07-30  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch6.adb (Analyze_Function_Return): Reject a return expression
	whose type is an incomplete formal type.
	(Analyze_Return_Type): Reject a return type that is an untagged
	imcomplete formal type.
	(Process_Formals): Reject a formal parameter whose type is an
	untagged formal incomplete type.
	* sem_res.adb (Resolve_Actuals): Reject an actual whose type is
	an untagged formal incomplete type.

From-SVN: r213299

2014-07-30  Robert Dewar  <dewar@adacore.com>

	* gnat_ugn.texi: Minor spelling correction.
	* makeutl.adb: Minor code reorganization.
	* exp_ch4.adb, exp_aggr.adb, exp_ch3.adb: Minor reformatting.

2014-07-30  Robert Dewar  <dewar@adacore.com>

	* einfo.ads (Has_Unchecked_Union): Document that this is used
	to check for illegal Valid_Scalars attribute references.
	* exp_attr.adb (Build_Record_VS_Func): New function
	(Expand_N_Attribute_Reference, case Valid_Scalars): Call this
	function.
	* gnat_rm.texi: Document 'Valid_Scalars cannot be applied to
	Unchecked_Union Add note on 'Valid_Scalars generating a lot
	of code.
	* sem_attr.adb (Analyze_Attribute, case Valid_Scalars): Give
	error on attempt to apply Valid_Scalars to Unchecked_Union type.

From-SVN: r213298

2014-07-30  Steve Baird  <baird@adacore.com>

	* exp_ch4.adb (Expand_N_Indexed_Component): Disable optimized handling
	of A(I..J)(K) in CodePeer_Mode.

2014-07-30  Ben Brosgol  <brosgol@adacore.com>

	* gnat_ugn.texi: Fix typo.

From-SVN: r213297

2014-07-30  Thomas Quinot  <quinot@adacore.com>

	* lib-writ.ads: document format change.

2014-07-30  Pascal Obry  <obry@adacore.com>

	* prj-util.adb (For_Interface_Sources): Do not
	include sources from withed externally built projects.

2014-07-30  Robert Dewar  <dewar@adacore.com>

	* lib.adb: Minor reformatting.
	* prj-util.adb: Minor reformatting.

2014-07-30  Ed Schonberg  <schonberg@adacore.com>

	* exp_aggr.adb (Build_Record_Aggr_Code): For an array component
	that depends on discriminants, and which is given by an others
	clause, create an explicit subtype with the discriminant values
	of the enclosing aggregate, because the backend cannot otherwise
	retrieve the actual bounds of the array.

2014-07-30  Fedor Rybin  <frybin@adacore.com>

	* gnat_ugn.texi: Improve gnattest documentation.

2014-07-30  Pascal Obry  <obry@adacore.com>

	* makeutl.adb (Insert_Project_Sources): Properly handle sources
	that are aggregated. We want to include sources not only part
	of libraries but also if part of an aggregated project from an
	aggregate library.
	* prj.adb (For_Project_And_Aggregated_Context): Properly check
	state of root project.

From-SVN: r213296

2014-07-30  Thomas Quinot  <quinot@adacore.com>

	* lib-load.ads: Minor reformatting.
	* sinfo.ads (Library_Unit): Update comment.
	* lib.ads (Notes): Simplify. The Unit component in Notes_Entry
	is redundant. Instead used the pragma Node_Id directly as the
	element type.

2014-07-30  Thomas Quinot  <quinot@adacore.com>

	* lib.adb (Store_Note): Store only notes that do not come from
	an instance, and that are in the extended main source unit.
	* lib-writ (Write_Unit_Information): Annotations from subunits
	must be emitted along with those for the main unit, and they
	must carry a specific file name.
	* ali.ads (Notes_Record): Use a File_Name_Type instead of a
	Unit_Id for the source file containing the pragma, as in the
	case of annotations from subunits we might not have a readily
	available unit id.
	* ali.adb (Scan_ALI): Account for above change in data structure.

From-SVN: r213295

2014-07-30  Vincent Celier  <celier@adacore.com>

	* makeutl.adb (Insert_Project_Sources): When the library project
	is an aggregate Stand-Alone Library, insert in the queue the
	Ada interface units, with Closure set to True;

2014-07-30  Eric Botcazou  <ebotcazou@adacore.com>

	* sem_util.adb: Fix minor typo.
	* makeutl.adb: Minor reformatting.

From-SVN: r213294

re PR c/59855 (Support sparse-style __attribute__((designated_init)) on structures, requiring designated initializers)

2014-07-30  Tom Tromey  <tromey@redhat.com>

	PR c/59855
	* doc/invoke.texi (Warning Options): Document -Wdesignated-init.
	* doc/extend.texi (Type Attributes): Document designated_init
	attribute.

2014-07-30  Tom Tromey  <tromey@redhat.com>

	PR c/59855
	* c.opt (Wdesignated-init): New option.
	* c-common.c (c_common_attribute_table): Add "designated_init".
	(handle_designated_init): New function.

2014-07-30  Tom Tromey  <tromey@redhat.com>

	* c-typeck.c (struct constructor_stack) <designator_depth>: New
	field.
	(really_start_incremental_init, push_init_level): Initialize
	designator_depth.
	(pop_init_level): Set global designator_depth.
	(process_init_element): Check for designated_init attribute.

From-SVN: r213293

2014-07-30  Robert Dewar  <dewar@adacore.com>

	* exp_ch7.adb, checks.adb, makeutl.adb, makeutl.ads: Minor reformatting.

2014-07-30  Yannick Moy  <moy@adacore.com>

	* checks.ads: Fix typo in comment.

2014-07-30  Pierre-Marie Derodat  <derodat@adacore.com>

	* sem_util.adb (Set_Debug_Info_Needed): For scalar types, recurse on
	entities that materialize range bounds, if any.

2014-07-30  Vincent Celier  <celier@adacore.com>

	* projects.texi: Minor spelling fix.

From-SVN: r213292

2014-07-30  Hristian Kirtchev  <kirtchev@adacore.com>

	* checks.adb (Make_Bignum_Block): Use the new secondary stack
	build routines to manage the mark.
	* exp_ch7.adb (Create_Finalizer, Expand_Cleanup_Actions):
	Use the new secodary stack build routines to manage the mark.
	(Insert_Actions_In_Scope_Around): Add new formal parameter
	Manage_SS along with comment on its usage. Code and comment
	reformatting. Mark and release the secondary stack when the
	context warrants it.
	(Make_Transient_Block): Update the call
	to Insert_Actions_In_Scope_Around to account for parameter Manage_SS.
	(Wrap_Transient_Declaration): Remove local variable
	Uses_SS. Ensure that the secondary stack is marked and released
	when the related object declaration appears in a library level
	package or package body. Code and comment reformatting.
	* exp_util.ads, exp_util.adb (Build_SS_Mark_Call): New routine.
	(Build_SS_Release_Call): New routine.

2014-07-30  Steve Baird  <baird@adacore.com>

	* exp_attr.adb: Revert previous change, not needed after all.

2014-07-30  Vincent Celier  <celier@adacore.com>

	* makeutl.adb (Queue.Insert_Project_Sources): Insert with
	Closure => True for interfaces of Stand-Alone Libraries.
	* makeutl.ads (Source_Info (Format => Gprbuild)): Add new
	Boolean component Closure, defaulted to False.

2014-07-30  Yannick Moy  <moy@adacore.com>

	* sem_res.adb: Fix typo in error message.

From-SVN: r213291

2014-07-30  Robert Dewar  <dewar@adacore.com>

	* sem_ch3.adb (Process_Range_Expr_In_Decl): Use _FIRST/_LAST
	as name suffixes rather than L/H for subtype bounds.
	* tbuild.ads: Minor comment improvements and fixes
	(Make_External_Name): Document that suffix can start with an
	underscore.

2014-07-30  Bob Duff  <duff@adacore.com>

	* gnat_ugn.texi: Document --rep-clauses switch.

From-SVN: r213290

2014-07-30  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch13.adb (Analyze_Aspect_Specifications): Default_Value and
	Default_Component_Value can only be specified for scalar type or
	arrays of scalar types respectively.  This legality check must
	be performed at the point the aspect is analyzed, in order to
	reject aspect specifications that apply to a partial view.

2014-07-30  Thomas Quinot  <quinot@adacore.com>

	* freeze.adb: Minor reformatting.

2014-07-30  Robert Dewar  <dewar@adacore.com>

	* exp_attr.adb (Expand_Attribute, case First/Last): Don't expand in
	codepeer mode.

From-SVN: r213289

From-SVN: r213288

2014-07-30  Ed Schonberg  <schonberg@adacore.com>

	* freeze.adb (Check_Expression_Function): At the freeze point
	of an expression function, verify that the expression in the
	function does not contain references to any deferred constants
	that have no completion yet.
	(Freeze_Expression, Freeze_Before): call
	Check_Expression_Function.
	* a-ciorse.ads: Add Reference_Control_Type to detect tampering.
	* a-ciorse.adb: Add Adjust and Finalize routines for
	Reference_Control_Type. Use it in the construction of Reference
	and Constant_Reference values.

From-SVN: r213287

2014-07-30  Robert Dewar  <dewar@adacore.com>

	* exp_aggr.adb: Update comments.
	* a-chtgbo.adb, a-chtgbo.ads, a-cbhase.adb, a-cbhase.ads: Minor
	reformatting.

2014-07-30  Robert Dewar  <dewar@adacore.com>

	* cstand.adb (New_Standard_Entity): New version takes name
	string to call Make_Name.
	(Create_Standard): Use this routine to set name before setting other
	fields.

2014-07-30  Robert Dewar  <dewar@adacore.com>

	* exp_attr.adb (Expand_Attribute, case First): Rewrite simple
	entity reference.
	(Expand_Attribute, case Last): Ditto.
	* exp_ch3.adb (Constrain_Index): New calling sequence for
	Process_Range_Expr_In_Decl.
	(Expand_N_Object_Declaration): Avoid setting Is_Known_Valid in one
	problematical case.
	* sem_ch3.adb (Constrain_Index): New calling sequence for
	Process_Range_Expr_In_Decl.
	(Set_Scalar_Range_For_Subtype): ditto.
	(Process_Range_Expr_In_Decl): Create constants to hold bounds for
	subtype.
	* sem_ch3.ads (Process_Range_Expr_In_Decl): Add Subtyp parameter.
	* sem_eval.adb (Compile_Time_Compare): Make sure we use base
	types if we are not assuming no invalid values.

From-SVN: r213286

2014-07-30  Robert Dewar  <dewar@adacore.com>

	* clean.adb: Minor reformatting.
	* opt.ads: Minor fix to incorrect comment.

2014-07-30  Ed Schonberg  <schonberg@adacore.com>

	* a-chtgbo.ads, a-chtgbo.adb (Delete_Node_At_Index): New
	subprogram, used by bounded hashed sets, to delete a node at
	a given index, whose element may have been improperly updated
	through a Reference_Preserving key.
	* a-cbhase.ads: Add Reference_Control_Type to package Generic_Keys.
	* a-cbhase.adb: Add Adjust and Finalize routines for
	Reference_Control_Type.
	(Delete, Insert): Raise Program_Error, not Constraint_Error,
	when operation is illegal.
	(Reference_Preserving_Key): Build aggregate for Reference_Control_Type
	* a-cmbutr.ads: Add Reference_Control_Type to detect tampering. Add
	private with_clause for Ada.Finalization.
	* a-cbmutr.adb: Add Adjust and Finalize routines for
	Reference_Control_Type. Use it in the construction of Reference
	and Constant_Reference values.

From-SVN: r213285

2014-07-30  Robert Dewar  <dewar@adacore.com>

	* sem_ch3.adb, sem_ch3.ads: Minor code reorganization.

2014-07-30  Pascal Obry  <obry@adacore.com>

	* clean.adb (Clean_Project): Properly check for directory
	existence before trying to enter it.

From-SVN: r213284

2014-07-30  Robert Dewar  <dewar@adacore.com>

	* sem_ch3.ads, prj.ads, prj-nmsc.adb: Minor reformatting.

From-SVN: r213283

2014-07-30  Robert Dewar  <dewar@adacore.com>

	* par-ch5.adb (P_Sequence_Of_Statements): Properly handle
	missing semicolon after name.

2014-07-30  Pascal Obry  <obry@adacore.com>

	* prj.ads (Gprinstall_Flags): New constant.
	* prj-nmsc.adb (Check_Library_Attributes): Do not fails for
	missing library dir if Directories_Must_Exist_In_Projects
	is false.

From-SVN: r213282

2014-07-30  Bob Duff  <duff@adacore.com>

	* a-except-2005.adb, a-except.adb: Remove obsolete comments.
	* s-traceb.ads: Updagte comments.

From-SVN: r213281

2014-07-30  Robert Dewar  <dewar@adacore.com>

	* checks.adb, a-cihase.adb, a-cihase.ads, a-chtgop.adb, a-chtgop.ads,
	a-except.adb, a-except-2005.adb, a-cborse.adb, a-cborse.ads,
	a-exexda.adb, a-elchha.adb, exp_aggr.adb, a-cohase.adb: Minor
	reformatting.

From-SVN: r213280

2014-07-30  Ed Schonberg  <schonberg@adacore.com>

	* a-chtgop.ads, a-chtgop.adb (Delete_Node_At_Index): New
	subprogram, used by all versions of hashed sets, to delete a node
	whose element has been improperly updated through a Reference_
	Preserving key.
	* a-cohase.adb: Remove Delete_Node, use new common procedure
	Delete_Node_At_Index.
	* a-cihase.ads: Add Reference_Control_Type to package Generic_Keys.
	* a-cihase.adb: Add Adjust and Finalize routines for
	Reference_Control_Type.
	(Reference_Preserving_Key): Build aggregate for
	Reference_Control_Type

2014-07-30  Yannick Moy  <moy@adacore.com>

	* checks.adb, checks.ads (Determine_Range_R): New procedure to
	determine the possible range of a floating-point expression.

2014-07-30  Ed Schonberg  <schonberg@adacore.com>

	* a-cborse.ads: Add Reference_Control_Type to package Generic_Keys.
	* a-cborse.adb: Add Adjust and Finalize routines for
	Reference_Control_Type.
	(Reference_Preserving_Key): Build aggregate for
	Reference_Control_Type.
	(Delete): Check for tampering, and raise Program_Error (not
	Constraint_Error) when attempting to delete an element not in
	the set.
	(Insert): Ditto.

2014-07-30  Bob Duff  <duff@adacore.com>

	* a-elchha.adb, a-except-2005.adb, a-except.adb, a-exexda.adb,
	* a-exextr.adb, a-exstat.adb, exp_intr.ads, s-tassta.adb:
	Exception_Information is used to produce useful debugging
	information for the programmer. However, it was also used to
	implement the stream attributes for type Exception_Occurrence. The
	latter requires a stable and portable interface, which meant
	that we couldn't include a symbolic traceback. A separate set of
	routines was used to provide symbolic tracebacks under program
	control (i.e. not automatically). The goal of this ticket is
	to provide such automatic tracebacks, so the change here is to
	split the two functionalities: Exception_Information gives the
	maximally useful information for debugging (i.e. it now includes
	a symbolic traceback when a decorator is set, and it can be
	improved freely in the future without disturbing streaming).
	Untailored_Exception_Information always uses hexadecimal addresses
	in the traceback, has a stable and portable output, and is now
	used for streaming.

2014-07-30  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_aggr.adb (Expand_Array_Aggregate): Add missing test
	on the target of the assignment to find out whether it
	can be directly done by the back-end.
	* exp_util.adb (Is_Possibly_Unaligned_Slice): Remove obscure test.

From-SVN: r213279