2012-10-01  Cary Coutant  <ccoutant@google.com>

	* MAINTAINERS: Add myself as dwarf debugging code maintainer.

From-SVN: r191943

From-SVN: r191942

2012-10-01  Dehao Chen  <dehao@google.com>

	PR middle-end/54759
	* gcc/tree-vect-loop-manip.c (slpeel_make_loop_iterate_ntimes): Use
	LOCATION_LOCUS to compare with UNKNOWN_LOCATION.
	(slpeel_tree_peel_loop_to_edge): Likewise.
	* gcc/tree-vectorizer.c (vectorize_loops): Likewise.

From-SVN: r191931

2012-10-01  Daniel Krugler  <daniel.kruegler@googlemail.com>

	* include/std/type_traits (result_of): Provide "SFINAE-friendly"
	(see N3436) implementation.
	* testsuite/20_util/result_of/sfinae_friendly_1.cc: New.
	* testsuite/20_util/result_of/sfinae_friendly_2.cc: Likewise.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Tweak
	dg-error line numbers.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
	Likewise.
	* testsuite/20_util/declval/requirements/1_neg.cc: Likewise.

From-SVN: r191930

2012-10-01  Andrew MacLeod  <amacleod@redhat.com>

	PR target/54087
	* optabs.c (expand_atomic_fetch_op_no_fallback): New.  Factored code
	from expand_atomic_fetch_op.
	(expand_atomic_fetch_op):  Try atomic_{add|sub} operations in terms of
	the other one if direct opcode fails.
	* testsuite/gcc.dg/pr54087.c:  New testcase for atomic_sub -> 
	atomic_add when atomic_sub fails.

From-SVN: r191929

        PR rtl-optimization/54457
        * simplify-rtx.c (simplify_subreg):
	Simplify (subreg:M (op:N ((x:N) (y:N)), 0)
     	to (op:M (subreg:M (x:N) 0) (subreg:M (x:N) 0)), where
	the outer subreg is effectively a truncation to the original mode M.

testsuite/ChangeLog:

        PR rtl-optimization/54457
        * gcc.target/i386/pr54457.c: New test.

From-SVN: r191928

2012-10-01  Richard Guenther  <rguenther@suse.de>

	* builtins.def (ATTR_MATHFN_FPROUNDING): Do not use no-vops
	with -frounding-math.
	* builtin-attrs.def (ATTR_PURE_NOTHROW_NOVOPS_LIST): Remove.
	(ATTR_PURE_NOTHROW_NOVOPS_LEAF_LIST): Likewise.

From-SVN: r191925

	* tree.h (copy_mem_ref_info): Delete.
	* tree-ssa-address.c (copy_mem_ref_info): Likewise.
	(maybe_fold_tmr): Copy flags manually.
	* tree-ssa-loop-im.c (simple_mem_ref_in_stmt): Rewrite.

From-SVN: r191924

2012-10-01  Vincent Pucci  <pucci@adacore.com>

	* sem_aggr.adb (New_Copy_Tree_And_Copy_Dimensions): New routine.
	(Resolve_Record_Aggregate): New_Copy_Tree calls replaced by
	New_Copy_Tree_And_Copy_Dimensions calls. Move_Dimensions call
	replaced by Copy_Dimensions call.
	* sem_dim.adb (Analyze_Dimension_Component_Declaration): Don't
	remove the dimensions of expression in component declaration anymore.
	(Copy_Dimensions): New routine.
	(Move_Dimensions): Add call to Copy_Dimensions.
	* sem_dim.ads (Copy_Dimensions): New routine.
	(Move_Dimensions): Spec moved to body of Sem_Dim.

From-SVN: r191922

2012-10-01  Ed Schonberg  <schonberg@adacore.com>

	* checks.adb (Apply_Predicate_Check): If the predicate is a
	static one and the operand is static, evaluate the predicate at
	compile time.
	* sem_eval.ads, sem_eval.adb (Eval_Static_Predicate_Check): new
	procedure, to evaluate a static predicate check whenever possible.
	* sem_res.adb (Resolve_Type_Conversion): Apply predicate check
	on the conversion if the target type has predicates.

2012-10-01  Vincent Pucci  <pucci@adacore.com>

	* sem_dim.adb (Has_Symbols): Complain if parameter Symbol has been
	provided by the user in the dimension output call.

From-SVN: r191921

2012-10-01  Robert Dewar  <dewar@adacore.com>

	* checks.adb (Apply_Divide_Checks): New name for
	Apply_Divide_Check (Minimize_Eliminate_Overflow_Checks):
	Add code to handle division (and rem and mod) properly.
	(Apply_Division_Check): New procedure (Apply_Divide_Checks):
	Use Apply_Division_Check (Apply_Divide_Checks): Use
	Apply_Arithmetic_Overflow_Minimized_Eliminated.
	* checks.ads (Apply_Divide_Checks): New name for
	Apply_Divide_Check, also add clearer documentation for this
	routine and put in alfa order.
	* exp_ch4.adb (Apply_Divide_Checks): New name for
	Apply_Divide_Check.
	* s-bignum.adb (To_Bignum): Handle largest negative integer
	properly.
	* sem.adb (Analyze): Handle overflow suppression correctly
	(Analyze_List): Handle overflow suppression correctly
	* sem_res.adb (Analyze_And_Resolve): Handle overflow suppression
	correctly.

2012-10-01  Vasiliy Fofanov  <fofanov@adacore.com>

	* s-oscons-tmplt.c, g-socket.ads: Revert previous change, breaks VMS.

From-SVN: r191920

2012-10-01  Robert Dewar  <dewar@adacore.com>

	* checks.adb (Minimize_Eliminate_Overflow_Checks): Changes
	for exponentiation.
	* exp_ch4.adb (Expand_N_Op_Expon): Changes for Minimize/Eliminate
	overflow checks.
	* s-bignum.adb (Compare): Fix bad precondition.

2012-10-01  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch3.adb (Build_Derived_Record_Type): If the derived
	type has new discriminantss that constrain inherited ones, use
	the discriminant type in the original declaration to check for
	conformance, because in the presence of array components with a
	smaller range that are constrained by the origina discriminant,
	the compiler will have created a narrower subtype for that
	discriminant.

From-SVN: r191919

checks.adb (Apply_Arithmetic_Overflow_Minimized_Eliminated): Handle case of appearing in range in membership test.

2012-10-01  Robert Dewar  <dewar@adacore.com>

	* checks.adb (Apply_Arithmetic_Overflow_Minimized_Eliminated):
	Handle case of appearing in range in membership test.
	* exp_ch4.adb (Expand_Membership_Minimize_Eliminate_Overflow):
	New procedure (Expand_N_In): Use
	Expand_Membership_Minimize_Eliminate_Overflow.
	* rtsfind.ads: Add RE_Bignum_In_LLI_Range.
	* s-bignum.ads, s-bignum.adb (Bignum_In_LLI_Range): New function.
	* sinfo.ads, sinfo.adb (No_Minimize_Eliminate): New flag.

2012-10-01  Robert Dewar  <dewar@adacore.com>

	* uintp.ads: Minor reformatting.

From-SVN: r191918

From-SVN: r191917

2012-10-01  Ed Schonberg  <schonberg@adacore.com>

	* checks.adb: Improve warning message.

From-SVN: r191915

2012-10-01  Robert Dewar  <dewar@adacore.com>

	* checks.adb: Minor reformatting.

2012-10-01  Javier Miranda  <miranda@adacore.com>

	* exp_ch3.adb (Expand_N_Object_Declaration): Suppress tag
	assignment for initializations that are aggregates.

2012-10-01  Robert Dewar  <dewar@adacore.com>

	* exp_ch4.adb (Expand_Compare_Minimize_Eliminate_Overflow):
	New procedure.

From-SVN: r191914

2012-10-01  Robert Dewar  <dewar@adacore.com>

	* checks.adb (Minimize_Eliminate_Checks): Changes from testing.
	(Apply_Arithmetic_Overflow_Minimized_Eliminated): Changes
	from testing.
	* sinfo.ads: Remove note on not setting Entity field in overflow
	case since this is no longer true.
	* Makefile.rtl: Add s-bignum.o

2012-10-01  Thomas Quinot  <quinot@adacore.com>

	* Make-generated.in: Correction to previous change for s-oscons
	target.

2012-10-01  Thomas Quinot  <quinot@adacore.com>

	* s-bignum.adb (Allocate_Bignum): Reorganize to kill strict
	aliasing warning.

From-SVN: r191913

2012-10-01  Robert Dewar  <dewar@adacore.com>

	* checks.adb (Overflow_Check_Mode): New function
	(Apply_Overflow_Check): New procedure (Is_Check_Suppressed):
	Moved here from Sem, Overflow_Check case now specially treated.
	* checks.ads (Overflow_Check_Mode): New function
	(Is_Check_Suppressed): Moved here from Sem (more logical)
	* exp_ch4.adb (Substitute_Valid_Check): Suppress warning about
	optimization if we are in MINIMIZED or ELIMINATED overflow
	checking mode and within an assertiom expression.
	* rtsfind.ads: Add entries for Bignum stuff.
	* s-bignum.ads, s-bignum.adb: New files.
	* sem.ads, sem.adb (Is_Check_Suppressed): Moved to Checks, more logical.
	* sem_prag.adb (Process_Suppress_Unsuppress): New behavior for
	Unsuppress of Overflow_Check (sets Checked instead of Minimized)
	* sem_res.adb: Update comments.
	* sinfo.ads (N_Op): Add documentation on overflow handling.
	* tbuild.ads, tbuild.adb (Convert_To_And_Rewrite): New procedure.
	* types.ads (Minimized_Or_Eliminated): New subtype.

2012-10-01  Eric Botcazou  <ebotcazou@adacore.com>

	* layout.adb (Layout_Type): Do not set twice the address size
	on an access-to-unconstrained array if Debug_Flag_6 is set.

From-SVN: r191912

2012-10-01  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_ch3.adb (Analyze_Declarations): Remove the specialized
	code which prevents freezing when the declarative list contains
	a _postconditions body. This is no longer needed because the
	body is now inserted at the end of the declarations.
	* sem_ch6.adb (Insert_After_Last_Declaration): New routine.
	(Insert_Before_First_Source_Declaration): Removed.
	(Process_PPCs): Insert the _postconditions body at the end of
	the declarative list to prevent premature freezing of types that
	appear in the declarations.

2012-10-01  Robert Dewar  <dewar@adacore.com>

	* sem_aggr.adb, sem_dim.adb: Minor reformatting.

From-SVN: r191911

2012-10-01  Ed Schonberg  <schonberg@adacore.com>

	* sem_prag.adb (Process_Convention, Process_Import_Or_Interface):
	Adjust test so that when the pragma comes from an aspect
	specification it only applies to the entity in the original
	declaration.

2012-10-01  Thomas Quinot  <quinot@adacore.com>

	* gnat_ugn.texi: Document new command line switch -fada-spec-parent.

2012-10-01  Thomas Quinot  <quinot@adacore.com>

	* s-oscons-tmplt.c, g-socket.ads: Minor code improvement: use gcc
	builtin __alignof__ to get the alignment of struct fd_set.

2012-10-01  Vincent Pucci  <pucci@adacore.com>

	* exp_ch6.adb (Expand_Call): Remove call to
	Remove_Dimension_In_Call.
	* sem_aggr.adb (Resolve_Array_Aggregate): Analyze dimension of
	components in array aggregate.
	(Resolve_Aggr_Expr): Propagate dimensions from the original expression
	Expr to the new created expression New_Expr when resolving the
	expression of a component in record aggregates.
	(Resolve_Record_Aggregate): Analyze
	dimension of components in record (or extension) aggregate.
	* sem_ch6.adb (Analyze_Subprogram_Specification): Analyze
	dimension of formals with default expressions in subprogram
	specification.
	* sem_ch8.adb (Analyze_Expanded_Name): Analyze dimension of
	expanded names.
	(Find_Selected_Component): Analyze dimension of selected component.
	* sem_dim.adb: Several dimension error messages reformatting.
	(Dimensions_Msg_Of): New flag Description_Needed in order to
	differentiate two different sort of dimension error messages.
	(Dim_Warning_For_Numeric_Literal): New routine.
	(Exists): New routine.
	(Move_Dimensions): Routine spec moved to spec file.
	* sem_dim.ads (String_From_Numeric_Literal): New routine.
	(Analyze_Dimension): Analyze dimension only when the
	node comes from source.  Dimension analysis for expanded names added.
	(Analyze_Dimension_Array_Aggregate): New routine.
	(Analyze_Dimension_Call): New routine.
	(Analyze_Dimension_Component_Declaration): Warning if default
	expression is a numeric literal.
	(Analyze_Dimension_Extension_Or_Record_Aggregate): New routine.
	(Analyze_Dimension_Formals): New routine.
	(Analyze_Dimension_Object_Declaration): Warning if default
	expression is a numeric literal.
	(Symbol_Of): Return either the dimension subtype symbol or the
	dimension symbol built by From_Dim_To_Str_Of_Unit_Symbols.
	* sem_dim.ads (Analyze_Dimension_Array_Aggregate): New routine.
	(Analyze_Dimension_Call): New routine.
	(Analyze_Dimension_Extension_Or_Record_Aggregate): New routine.
	(Analyze_Dimension_Formals): New routine.
	(Move_Dimensions): Moved from sem_dim.adb.
	* s-dimmks.ads: Turn off the warnings for dimensioned object
	declaration.  Dimensioned subtypes sorted in alphabetical
	order. New subtypes Area, Speed, Volume.
	* s-dmotpr.ads: Turn off the warnings for dimensioned object
	declaration.
	* sem_res.adb (Resolve_Call): Analyze dimension for calls.

2012-10-01  Thomas Quinot  <quinot@adacore.com>

	* Make-generated.in: Minor cleanup of all targets: use
	MOVE_IF_CHANGE to put generated files in place, to avoid useless
	recompilations.

2012-10-01  Javier Miranda  <miranda@adacore.com>

	* exp_disp.adb (Expand_Dispatching_Call): For functions returning
	interface types add an implicit conversion to the returned object
	to force the displacement of the pointer to the returned object
	to reference the corresponding secondary dispatch table. This
	is needed to handle well combined calls involving secondary
	dispatch tables (for example Obj.Prim1.Prim2).
	* exp_ch4.adb (Expand_Allocator_Expression): Declare internal
	access type as access to constant or access to variable depending
	on the context. Found working in this ticket.

2012-10-01  Ed Schonberg  <schonberg@adacore.com>

	* checks.adb (Apply_Predicate_Check): Do not apply check to
	actual of predicate checking procedure, to prevent infinite
	recursion.

From-SVN: r191910

2012-10-01  Marc Glisse  <marc.glisse@inria.fr>

gcc/
	* simplify-rtx.c (simplify_binary_operation_1) <VEC_SELECT>:
	Detect the identity.
	<VEC_CONCAT>: Handle VEC_SELECTs from the same vector.

gcc/testsuite/
	* gcc.target/i386/vect-rebuild.c: New testcase.

From-SVN: r191909

	* gcc-interface/Make-lang.in: Update dependencies.
	(GCC_LINK): Add -static-libstdc++.

From-SVN: r191908

	* gcc-interface/trans.c (gigi): Adjust previous change to avoid a
	typecast that discards a const qualifier.

From-SVN: r191907

2012-10-01  Arnaud Charlet  <charlet@adacore.com>

	* a-catizo.adb, a-stwiun.adb, a-cdlili.adb, a-cihama.adb, a-direct.adb,
	a-coinve.adb, a-calend.adb, a-ciorse.adb, a-coorma.adb, a-cfdlli.adb,
	a-stzunb-shared.adb, a-cfhase.adb, bindgen.adb, ceinfo.adb, a-tags.adb,
	einfo.adb, checks.adb, eval_fat.adb, a-cborma.adb, a-stwifi.adb,
	a-tifiio.adb, a-textio.adb, a-cidlli.adb, a-strunb-shared.adb,
	a-cimutr.adb, a-calcon.adb, a-exexpr-gcc.adb, a-ciormu.adb,
	a-stzunb.adb, a-stzsea.adb, a-ngelfu.adb, a-stzfix.adb,
	a-cihase.adb, a-cohama.adb, a-exetim-posix.adb, a-dirval-vms.adb,
	a-caldel-vms.adb, a-coorse.adb, errout.adb,
	a-except.adb, butil.adb, a-dirval-mingw.adb, a-cforma.adb,
	a-except-2005.adb, a-wtedit.adb, cstand.adb, a-stwiun-shared.adb,
	a-cbhama.adb, a-direio.adb, clean.adb, a-cborse.adb, back_end.adb,
	binde.adb, a-exexda.adb, a-comutr.adb, a-ciorma.adb, a-cobove.adb,
	a-coormu.adb, a-teioed.adb, a-convec.adb, a-wtenau.adb, exp_aggr.adb,
	a-ztedit.adb, a-cohase.adb, a-exetim-mingw.adb, bcheck.adb,
	a-dynpri.adb, a-cfhama.adb, a-calfor.adb, a-cbdlli.adb,
	a-crdlli.adb, a-cbmutr.adb, a-sequio.adb, a-ngcoar.adb, a-cforse.adb,
	a-strunb.adb, a-calend-vms.adb, a-clrefi.adb, a-cofove.adb,
	a-ztenau.adb, a-strfix.adb, a-cbhase.adb, a-stzsup.adb: Minor
	reformatting.

From-SVN: r191905

2012-10-01  Vincent Pucci  <pucci@adacore.com>

	* s-gearop.adb (Vector_Matrix_Product): Dimensions check fixed. Index
	of Left in S evaluation fixed.

2012-10-01  Javier Miranda  <miranda@adacore.com>

	* sem_ch3.adb (Analyze_Declarations): Avoid
	premature freezing caused by the internally generated subprogram
	_postconditions.
	* checks.adb (Expr_Known_Valid): Float literals are assumed to be valid
	in VM targets.

2012-10-01  Thomas Quinot  <quinot@adacore.com>

	* sinput.ads, sinput.adb, sinput-l.adb sinput-c.adb (Sinput): New
	Instances table, tracking all generic instantiations. Source file
	attribute Instance replaces previous Instantiation attribute with an
	index into the Instances table.
	(Iterate_On_Instances): New generic procedure.
	(Create_Instantiation_Source): Record instantiations in Instances.
	(Tree_Read, Tree_Write): Read/write the instance table.
	* scils.ads, scos.adb (SCO_Instance_Table): New table, contains
	information copied from Sinput.Instance_Table, but self-contained
	within the SCO data structures.
	* par_sco.ads, par_sco.adb (To_Source_Location): Move to library level.
	(Record_Instance): New subprogram, used by...
	(Populate_SCO_Instance_Table): New subprogram to fill
	the SCO instance table from the Sinput one (called by SCO_Output).
	* opt.ads (Generate_SCO_Instance_Table): New option.
	* put_scos.adb (Write_Instance_Table): New subprogram, used by...
	(Put_SCOs): Dump the instance table at the end of SCO information
	if requested.
	* get_scos.adb (Get_SCOs): Read SCO_Instance_Table.
	* types.h: Add declaration for Instance_Id.
	* back_end.adb (Call_Back_End): Pass instance ids in source file
	information table.
	(Scan_Back_End_Switches): -fdebug-instances sets
	Opt.Generate_SCO_Instance_Table.
	* gcc-interface/gigi.h: File_Info_Type includes instance id.
	* gcc-interface/trans.c: Under -fdebug-instances, set instance
	id in line map from same in file info.

2012-10-01  Thomas Quinot  <quinot@adacore.com>

	* sem_elab.adb: Minor reformatting
	(Check_Elab_Call): Minor fix to debugging code
	(add special circuit for the valid case where a 'Access attribute
	reference is passed to Check_Elab_Call).

2012-10-01  Thomas Quinot  <quinot@adacore.com>

	* exp_ch3.adb: Minor reformatting.

From-SVN: r191904

2012-10-01  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch3.ads (Build_Array_Invariant_Proc): moved to body.
	* exp_ch3.adb (Build_Array_Invariant_Proc,
	Build_Record_Invariant_Proc): transform into functions.
	(Insert_Component_Invariant_Checks): for composite types that have
	components with specified invariants, build a checking procedure,
	and make into the invariant procedure of the composite type,
	or incorporate it into the user- defined invariant procedure if
	one has been created.
	* sem_ch3.adb (Array_Type_Declaration): Checking for invariants
	on the component type is defered to the expander.

2012-10-01  Thomas Quinot  <quinot@adacore.com>

	* xsnamest.adb, namet.h, sem_ch10.adb, s-oscons-tmplt.c,
	xoscons.adb: Minor reformatting.

2012-10-01  Hristian Kirtchev  <kirtchev@adacore.com>

	* checks.adb (Apply_Parameter_Aliasing_And_Validity_Checks):
	Do not process subprogram renaminds because a) those cannot
	have PPC pragmas b) the renamed entity already has the PPCs.
	(Build_PPC_Pragma): Prepend a PPC pragma for consistency with
	Process_PPCs.
	* sem_ch6.adb (Last_Implicit_Declaration): Removed.
	(Process_PPCs): Insert a post condition body at the start of the
	declarative region of the related subprogram. This way the body
	will not freeze anything it shouldn't.

From-SVN: r191903

2012-10-01  Robert Dewar  <dewar@adacore.com>

	* freeze.adb, sem_ch6.adb, opt.ads, sem_ch13.adb,
	exp_ch3.adb: Minor reformatting.

2012-10-01  Hristian Kirtchev  <kirtchev@adacore.com>

	* checks.adb (Build_PPC_Pragma): A PPC pragma can now be properly
	associated with a subprogram body.

From-SVN: r191902

2012-10-01  Ed Schonberg  <schonberg@adacore.com>

	* aspects.ads: Type_Invariant'class is a valid aspect.
	* sem_ch6.adb (Is_Public_Subprogram_For): with the exception of
	initialization procedures, subprograms that do not come from
	source are not public for the purpose of invariant checking.
	* sem_ch13.adb (Build_Invariant_Procedure): Handle properly the
	case of a non-private type in a package without a private part,
	when the type inherits invariants from its ancestor.

2012-10-01  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch3.adb (Build_Record_Invariant_Proc): new procedure to
	generate a checking procedure for record types that may have
	components whose types have type invariants declared.

From-SVN: r191901

2012-10-01  Vincent Pucci  <pucci@adacore.com>

	* system-solaris-sparcv9.ads, system-mingw.ads, system-vms_64.ads: Flag
	Support_Atomic_Primitives set to True.

2012-10-01  Robert Dewar  <dewar@adacore.com>

	* impunit.adb: Ada.Locales is a language defined unit.

2012-10-01  Hristian Kirtchev  <kirtchev@adacore.com>

	* checks.adb (Apply_Parameter_Aliasing_Checks): Removed.
	(Apply_Parameter_Aliasing_And_Validity_Checks): New routine.
	(Apply_Parameter_Validity_Checks): Removed.
	* checks.ads (Apply_Parameter_Aliasing_Checks): Removed.
	(Apply_Parameter_Aliasing_And_Validity_Checks): New routine.
	(Apply_Parameter_Validity_Checks): Removed.
	* exp_ch6.adb (Expand_Call): Remove the generation of parameter
	aliasing checks.
	* freeze.adb: Remove with and use clauses for Validsw.
	(Freeze_Entity): Update the guard and generation of aliasing
	and scalar initialization checks for subprogram parameters.
	* opt.ads: Add new flags Check_Aliasing_Of_Parameters and
	Check_Validity_Of_Parameters along with comments on usage.
	* sem_attr.adb (Analyze_Attribute): Pragma Overlaps_Storage is
	no longer an Ada 2012 feature.
	* sem_ch4.adb: Remove with and use clauses for Checks and Validsw.
	(Analyze_Call): Remove the generation of aliasing checks for
	subprogram parameters.
	* sem_ch13.adb: Remove with and use clauses for Validsw.
	(Analyze_Aspect_Specifications): Remove the generation of scalar
	initialization checks.
	* switch-c.adb (Scan_Front_End_Switches): Add processing for
	-gnateA and -gnateV.
	* usage.adb (Usage): Add information on switches -gnateA and
	-gnateV. Remove information on validity switches 'l', 'L',
	'v' and 'V'.
	* validsw.adb (Reset_Validity_Check_Options): Remove the
	reset of flags Validity_Check_Non_Overlapping_Params
	and Validity_Check_Valid_Scalars_On_Params.
	(Save_Validity_Check_Options): Remove the processing
	for flags Validity_Check_Non_Overlapping_Params
	and Validity_Check_Valid_Scalars_On_Params.
	(Set_Validity_Check_Options): Remove the processing
	for flags Validity_Check_Non_Overlapping_Params and
	Validity_Check_Valid_Scalars_On_Params.
	* validsw.ads: Remove flags Validity_Check_Non_Overlapping_Params
	and Validity_Check_Valid_Scalars_On_Params along with their
	comments on usage.

From-SVN: r191900

	PR target/50457
	* config/sh/sh.opt (matomic-model): New option.
	(msoft-atomic): Mark as deprecated and alias to matomic-model=soft-gusa.
	(mhard-atomic): Delete.
	* config/sh/predicates.md (gbr_displacement): New predicate.
	* config/sh/sh-protos.h (sh_atomic_model): New struct.
	(selected_atomic_model): New declaration.
	(TARGET_ATOMIC_ANY, TARGET_ATOMIC_STRICT, TARGET_ATOMIC_SOFT_GUSA,
	TARGET_ATOMIC_HARD_LLCS, TARGET_ATOMIC_SOFT_TCB,
	TARGET_ATOMIC_SOFT_TCB_GBR_OFFSET_RTX, TARGET_ATOMIC_SOFT_IMASK):
	New macros.
	* config/sh/linux.h (SUBTARGET_OVERRIDE_OPTIONS): Adapt setting to
	default atomic model.
	* config/sh/sh.c (selected_atomic_model_): New global variable.
	(selected_atomic_model, parse_validate_atomic_model_option): New
	functions.
	(sh_option_override): Replace atomic selection checks with call to
	parse_validate_atomic_model_option.
	* config/sh/sh.h (TARGET_ANY_ATOMIC, UNSUPPORTED_ATOMIC_OPTIONS,
	UNSUPPORTED_HARD_ATOMIC_CPU): Delete.
	(DRIVER_SELF_SPECS): Remove atomic checks.
	config/sh/sync.md: Update documentation comments.
	(atomic_compare_and_swap<mode>, atomic_exchange<mode>,
	atomic_fetch_<fetchop_name><mode>, atomic_fetch_nand<mode>,
	atomic_<fetchop_name>_fetch<mode>, atomic_nand_fetch<mode>): Use
	TARGET_ATOMIC_ANY as condition.  Add TARGET_ATOMIC_STRICT check for
	SH4A case.  Handle new TARGET_ATOMIC_SOFT_TCB and
	TARGET_ATOMIC_SOFT_IMASK cases.
	(atomic_test_and_set): Handle new TARGET_ATOMIC_SOFT_TCB and
	TARGET_ATOMIC_SOFT_IMASK cases.
	(atomic_compare_and_swapsi_hard, atomic_exchangesi_hard,
	atomic_fetch_<fetchop_name>si_hard, atomic_fetch_nandsi_hard,
	atomic_<fetchop_name>_fetchsi_hard, atomic_nand_fetchsi_hard):
	Add TARGET_ATOMIC_STRICT check.
	(atomic_compare_and_swap<mode>_hard, atomic_exchange<mode>_hard,
	atomic_fetch_<fetchop_name><mode>_hard, atomic_fetch_nand<mode>_hard,
	atomic_<fetchop_name>_fetch<mode>_hard, atomic_nand_fetch<mode>_hard,
	atomic_test_and_set_hard): Use TARGET_ATOMIC_HARD_LLCS condition.
	(atomic_compare_and_swap<mode>_soft, atomic_exchange<mode>_soft,
	atomic_fetch_<fetchop_name><mode>_soft, atomic_fetch_nand<mode>_soft,
	atomic_<fetchop_name>_fetch<mode>_soft, atomic_nand_fetch<mode>_soft,
	atomic_test_and_set_soft): Append _gusa to the insn names and use
	TARGET_ATOMIC_SOFT_GUSA as condition.
	(atomic_compare_and_swap<mode>_soft_tcb, atomic_exchange<mode>_soft_tcb,
	atomic_fetch_<fetchop_name><mode>_soft_tcb,
	atomic_fetch_nand<mode>_soft_tcb,
	atomic_<fetchop_name>_fetch<mode>_soft_tcb,
	atomic_nand_fetch<mode>_soft_tcb, atomic_test_and_set_soft_tcb):
	New insns.
	(atomic_compare_and_swap<mode>_soft_imask,
	atomic_exchange<mode>_soft_imask,
	atomic_fetch_<fetchop_name><mode>_soft_imask,
	atomic_fetch_nand<mode>_soft_imask,
	atomic_<fetchop_name>_fetch<mode>_soft_imask,
	atomic_nand_fetch<mode>_soft_imask, atomic_test_and_set_soft_imask):
	New insns.
	* doc/invoke.texi (SH Options): Document new matomic-model option.
	Remove msoft-atomic and mhard-atomic options.

From-SVN: r191899

2012-10-01  Yannick Moy  <moy@adacore.com>

	* sem_ch13.adb (Add_Invariants): Analyze the invariant expression
	as an assertion expression.
	* sem_ch3.adb / sem_ch3.ads (Preanalyze_Assert_Expression):
	New procedure that wraps a call to Preanalyze_Spec_Expression
	for assertion expressions, so that In_Assertion_Expr can be
	properly adjusted.
	* sem_prag.adb (Analyze_PPC_In_Decl_Part
	Check_Precondition_Postcondition Preanalyze_CTC_Args): Call the
	new Preanalyze_Assert_Expression.

From-SVN: r191898

2012-10-01  Robert Dewar  <dewar@adacore.com>

	* checks.ads: Minor reformatting.

2012-10-01  Yannick Moy  <moy@adacore.com>

	* types.ads, sem_prag.adb, sem.ads: Correct minor typos in comments.

From-SVN: r191897

2012-10-01  Vincent Celier  <celier@adacore.com>

	* make.adb (Scan_Make_Arg): Only test for "vP" of the option
	includes at least 3 characters.
	* gnatcmd.adb (GNATCmd): Ditto.

2012-10-01  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_ch7.adb, sinfo.ads: Add comments.

2012-10-01  Robert Dewar  <dewar@adacore.com>

	* checks.adb: Remove reference to Enable_Overflow_Checks Use
	Suppress_Options rather than Scope_Suppress.
	* gnat1drv.adb (Adjust_Global_Switches): Handle new overflow
	settings (Adjust_Global_Switches): Initialize Scope_Suppress
	from Suppress_Options.
	* opt.adb: Remove Enable_Overflow_Checks (use Suppress_Options
	instead).
	* opt.ads: Remove Overflow_Checks_Unsuppressed (not used)
	Remove Enable_Overflow_Checks (use Suppress_Options instead)
	Suppress_Options is now current setting (replaces Scope_Suppress).
	* osint.adb (Initialize): Deal with initializing overflow
	checking.
	* par-prag.adb: Add dummy entry for pragma Overflow_Checks.
	* sem.adb (Semantics): Save and restore In_Assertion_Expr Use
	Suppress_Options instead of Scope_Suppress.
	* sem.ads (In_Assertion_Expr): New flag (Scope_Suppress):
	Removed, use Suppress_Options instead.
	* sem_eval.adb (Compile_Time_Compare): Return Unknown in
	preanalysis mode.
	* sem_prag.adb (Process_Suppress_Unsuppress): Setting of
	Overflow_Checks_Unsuppressed removed (not used anywhere!)
	(Analyze_Pragma, case Check): Set In_Assertion_Expression
	(Analyze_Pragma, case Overflow_Checks): Implement new pragma
	* snames.ads-tmpl: Add names needed for handling pragma
	Overflow_Checks
	* switch-c.adb (Scan_Front_End_Switches) Handle -gnato? and
	-gnato?? where ? is 0-3
	* types.ads: Updates and fixes to comment on Suppress_Record.

2012-10-01  Vincent Celier  <celier@adacore.com>

	* prj-part.adb (Parse): Remove incorrect comment about checking
	imported non extending projects from and "extending all"
	one. Minor correction.

From-SVN: r191895

2012-10-01  Robert Dewar  <dewar@adacore.com>

	* make.adb, exp_ch3.adb: Minor reformatting.

2012-10-01  Hristian Kirtchev  <kirtchev@adacore.com>

	* validsw.adb (Save_Validity_Check_Options): Do not set
	Validity_Check_Non_Overlapping_Params and
	Validity_Check_Valid_Scalars_On_Params when -gnatVa is present
	because the related checks are deemed too aggressive.

2012-10-01  Ed Schonberg  <schonberg@adacore.com>

	* sem_util.ads sem_util.adb (Check_Internal_Protected_Use):
	reject use of protected procedure or entry within the body of
	a protected function of the same protected type, when usage is
	a call, an actual in an instantiation, a or prefix of 'Access.
	* sem_ch8.adb (Analyze_Subprogram_Renaming): Verify that target
	object in renaming of protected procedure is a variable, and
	apply Check_Internal_Protected_Use.
	* sem_res.adb (Analyze_Call, Analyze_Entry_Call): apply
	Check_Internal_Protected_Use rather than on-line code.
	* sem_attr.adb (Analyze_Access_Attribute): Verify that target
	object in accsss to protected procedure is a variable, and apply
	Check_Internal_Protected_Use.

2012-10-01  Gary Dismukes  <dismukes@adacore.com>

	* sem_ch4.adb (Find_Equality_Types.Try_One_Interp): Exclude the
	predefined interpretation from consideration if it's for a "/="
	operator of a tagged type. This will allow Analyze_Equality_Op to
	rewrite the "/=" as a logical negation of a call to the appropriate
	dispatching equality function. This needs to be done during
	analysis rather than expansion for the benefit of ASIS, which
	otherwise gets the unresolved N_Op_Ne operator from Standard.

From-SVN: r191894

2012-10-01  Thomas Quinot  <quinot@adacore.com>

	* gnatcmd.adb, make.adb (Scan_Make_Arg, Inspect_Switches): Recognize
	and reject an invalid parameter passed to -vP.

2012-10-01  Yannick Moy  <moy@adacore.com>

	* sem_warn.adb (Check_Infinite_Loop_Warning/Test_Ref): Improve
	the detection of modifications to the loop variable by noting
	that, if the type of variable is elementary and the condition
	does not contain a function call, then the condition cannot be
	modified by side-effects from a procedure call.

2012-10-01  Robert Dewar  <dewar@adacore.com>

	* checks.adb: Add comments.

2012-10-01  Javier Miranda  <miranda@adacore.com>

	* exp_ch3.adb (Expand_N_Object_Declaration): Improve condition catching
	never-ending recursion. The previous condition erroneously disabled
	silently the expansion of the class-wide interface object
	initialization in cases not involving the recursion.

From-SVN: r191892

From-SVN: r191891

2012-10-01  Thomas Quinot  <quinot@adacore.com>

	* make.adb: Minor documentation fix: error messages are sent to
	stderr, not stdout.

2012-10-01  Hristian Kirtchev  <kirtchev@adacore.com>

	* checks.ads, checks.adb (Apply_Parameter_Aliasing_Checks): New routine.
	(Apply_Parameter_Validity_Checks): New routines.
	* exp_ch6.adb (Expand_Call): Add aliasing checks to detect
	overlapping objects.
	* freeze.adb: Add with and use clauses for Checks and Validsw.
	(Freeze_Entity): Add checks to detect proper initialization
	of scalars.
	* sem_ch4.adb: Add with and use clauses for Checks and Validsw.
	(Analyze_Call): Add aliasing checks to detect overlapping objects.
	* sem_ch13.adb: Add with and use clauses for Validsw.
	(Analyze_Aspect_Specifications): Add checks to detect proper
	initialization of scalars.
	* sem_prag.adb (Chain_PPC): Correct the extraction of the
	subprogram name.
	* sem_util.adb (Is_Object_Reference): Attribute 'Result now
	produces an object.
	* usage.adb (Usage): Add usage lines for validity switches 'l',
	'L', 'v' and 'V'.
	* validsw.adb (Reset_Validity_Check_Options): Include
	processing for flags Validity_Check_Non_Overlapping_Params and
	Validity_Check_Valid_Scalars_On_Params. Code reformatting.
	(Save_Validity_Check_Options): Include processing
	for flags Validity_Check_Non_Overlapping_Params
	and Validity_Check_Valid_Scalars_On_Params.
	(Set_Validity_Check_Options): Add processing for validity switches
	'a', 'l', 'L', 'n', 'v' and 'V'. Code reformatting.
	* validsw.ads: Add new flags Validity_Check_Non_Overlapping_Params
	and Validity_Check_Valid_Scalars_On_Params along with comments
	on usage.

2012-10-01  Thomas Quinot  <quinot@adacore.com>

	* namet.ads, xsnamest.adb, prj-env.adb, sem_warn.adb,
	errout.ads: Minor reformatting.
	* prj-part.adb: Add comment.

From-SVN: r191890

2012-10-01  Robert Dewar  <dewar@adacore.com>

	* sinfo.ads, exp_aggr.adb, sem_ch13.adb: Minor reformatting.

2012-10-01  Ed Schonberg  <schonberg@adacore.com>

	* sem_aggr.adb (Resolve_Array_Aggregate): Handle properly
	component associations given by subtypes that have static
	predicates.  Improve error message for overlapping ranges in
	array aggregates.

2012-10-01  Pascal Obry  <obry@adacore.com>

	* snames.ads-tmpl (Name_Link_Lib_Subdir): New constant.

2012-10-01  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch9.adb (Analyze_Requeue): The target of a requeue
	statement on a protected entry must be a variable. This is part
	of AI05-0225.

From-SVN: r191889

2012-10-01  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	PR target/54746
	* config/s390/s390.c (s390_option_override): Add missing break.

From-SVN: r191885

2012-09-30  Sharad Singhai  <singhai@google.com>

	* dumpfile.c: New file with parts moved from tree-dump.c.
	(pflags): New variable.
	(alt_flags): Ditto.
	(alt_dump_file): Ditto.
	(dump_files):  Update to include additional fields.
	(struct dump_option_value_info): Add additional entries.
	(get_dump_file_name): Use command line filename if available.
	(dump_open_alternate_stream): New function.
	(dump_loc): Ditto.
	(dump_gimple_stmt): Ditto.
	(dump_gimple_stmt_loc): Ditto.
	(dump_generic_expr): Ditto.
	(dump_generic_expr_loc): Ditto.
	(dump_printf): Ditto.
	(dump_printf_loc): Ditto.
	(dump_start): Ditto.
	(dump_finish): Ditto.
	(dump_begin): Ditto.
	(dump_enabled_p): Return true if either of the dump types is enabled.
	(dump_initialized_p): Return true if either type of dump is initialized.
	(dump_end): Do not close standard streams.
	(dump_enable_all): Handle filenames for regular dumps.
	(dump_switch_p_1): Handle command-line dump filenames.
	(opt_info_enable_all): New function.
	(opt_info_switch_p_1): Ditto.
	(opt_info_switch_p): Ditto.
	(dump_kind_p): Ditto.
	(dump_basic_block): Ditto.
	(dump_combine_total_stats): Ditto.
	(dump_remap_tree_vectorizer_verbose): Ditto.
	* gimple-pretty-print.h: Rename dump_gimple_stmt to
	pp_gimple_stmt_1.  All callers updated.

From-SVN: r191884