dwarf2out.c (compute_barrier_args_size): Set barrier_args_size for labels for which it hasn't been set yet.

	* dwarf2out.c (compute_barrier_args_size): Set barrier_args_size
	for labels for which it hasn't been set yet.  If it has been set,
	stop walking insns and continue with next worklist item.
	(dwarf2out_stack_adjust): Don't call compute_barrier_args_size
	if the only BARRIER is at the very end of a function.

From-SVN: r138537

2008-08-01  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/36991
	* gcc.dg/pr36991.c: New test.

From-SVN: r138530

From-SVN: r138525

2008-08-01  H.J. Lu  <hongjiu.lu@intel.com>

	* cfgexpand.c (expand_stack_alignment): Assert that
	stack_realign_drap and drap_rtx must match.

	* function.c (instantiate_new_reg): If DRAP is used to realign
	stack, replace virtual_incoming_args_rtx with internal arg
	pointer.

From-SVN: r138524

2008-08-01  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-pre.c (fini_pre): Take in_fre parameter.  Free
	loop information only if we initialized it.
	(execute_pre): Call fini_pre with in_fre.
	* tree-ssa-loop-ivcanon (try_unroll_loop_completely): Dump
	if we do not unroll because we hit max-completely-peeled-insns.
	Use our estimation for consistency, do allow shrinking.

From-SVN: r138522

From-SVN: r138520

acinclude.m4 ([GLIBCXX_CHECK_CLOCK_GETTIME]): Reinstate clock_gettime search, but only in libposix4, never link librt.

2008-08-01  Paolo Bonzini  <bonzini@gnu.org>
	    Chris Fairles  <chris.fairles@gmail.com>

	* acinclude.m4 ([GLIBCXX_CHECK_CLOCK_GETTIME]): Reinstate clock_gettime
	search, but only in libposix4, never link librt.
	* src/Makefile.am: Reinstate previous change to add GLIBCXX_LIBS.
        * configure: Regenerate.
        * configure.in: Likewise.
        * Makefile.in: Likewise.
        * src/Makefile.in: Likewise.
        * libsup++/Makefile.in: Likewise.
        * po/Makefile.in: Likewise.
        * doc/Makefile.in: Likewise.

Co-Authored-By: Chris Fairles <chris.fairles@gmail.com>

From-SVN: r138519

	* gcc-interface/ada-tree.h (DECL_PARM_ALT): Now DECL_PARM_ALT_TYPE.
	* gcc-interface/decl.c (gnat_to_gnu_param): Fix formatting, simplify
	and adjust for above renaming.
	* gcc-interface/utils.c (convert_vms_descriptor): Likewise. Add new
	gnu_expr_alt_type parameter.  Convert the expression to it instead
	of changing its type in place.
	(build_function_stub): Adjust call to above function.

From-SVN: r138518

2008-08-01  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.c (override_options): Replace ABI_STACK_BOUNDARY
	with MIN_STACK_BOUNDARY.
	(ix86_update_stack_boundary): Likewise.
	(ix86_expand_prologue): Assert MIN_STACK_BOUNDARY instead of
	STACK_BOUNDARY.

	* config/i386/i386.h (ABI_STACK_BOUNDARY): Renamed to ...
	(MIN_STACK_BOUNDARY): This.

From-SVN: r138517

From-SVN: r138516

2008-08-01  Richard Guenther  <rguenther@suse.de>

	PR middle-end/36997
	* gimplify.c (gimplify_call_expr): Set error_mark_node on GS_ERROR.

	* gcc.dg/pr36997.c: New testcase.

From-SVN: r138515

From-SVN: r138514

2008-08-01  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Constant>: Remove dead
	code.  Do not get full definition of deferred constants with address
	clause for a use.  Do not ignore deferred constant definitions with
	address clause.  Ignore constant definitions already marked with the
	error node.
	<object>: Remove obsolete comment.  For a deferred constant with
	address clause, get the initializer from the full view.
	* gcc-interface/trans.c (gnat_to_gnu) <N_Attribute_Definition_Clause>:
	Rework and remove obsolete comment.
	<N_Object_Declaration>: For a deferred constant with address clause,
	mark the full view with the error node.
	*  gcc-interface/utils.c (convert_to_fat_pointer): Rework and fix
	formatting nits.

From-SVN: r138513

2008-08-01  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/36988
	* tree-ssa-ccp.c (ccp_fold): Conversions of constants only
	do not matter if that doesn't change volatile qualification.

	* gcc.c-torture/compile/pr36988.c: New testcase.

From-SVN: r138512

2008-08-01  Hristian Kirtchev  <kirtchev@adacore.com>

	* rtsfind.ads: Add block IO versions of stream routines for Strings.

	* bindgen.adb, gnat_rm.texi, gnat_ugn.texi, opt.ads,
	sem_prag.adb, snames.adb, snames.ads, snames.h,
	par-prag.adb: Undo Canonical_Streams related changes.

	* s-rident.ads: Add new restriction No_Stream_Optimizations.

	* s-ststop.ads, s-ststop.adb: Comment reformatting.
	Define enumeration type to designate different IO mechanisms.
	Enchance generic package Stream_Ops_Internal to include an
	implementation of Input and Output.

	* exp_attr.adb (Find_Stream_Subprogram): If restriction
	No_Stream_Optimization is active, choose the default byte IO
	implementations of stream attributes for Strings.
	Otherwise use the corresponding block IO version.

From-SVN: r138511

par-ch3.adb (P_Defining_Identifier): Avoid repeated attempt to convert plain identifier into defining identifier.

2008-08-01  Robert Dewar  <dewar@adacore.com>

	* par-ch3.adb (P_Defining_Identifier): Avoid repeated attempt to
	convert plain identifier into defining identifier.

From-SVN: r138510

decl.c (gnat_to_gnu_entity): Do not turn Ada Pure into GCC const, now implicitely implying nothrow as well.

        ada/
        * decl.c (gnat_to_gnu_entity) <case E_Function>: Do not turn Ada
        Pure into GCC const, now implicitely implying nothrow as well.

        testsuite/
        * gnat.dg/raise_from_pure.ad[bs],
        * gnat.dg/wrap_raise_from_pure.ad[bs]: Support for ...
        * gnat.dg/test_raise_from_pure.adb: New test.

From-SVN: r138509

2008-08-01  Bob Duff  <duff@adacore.com>

	* ioexcept.ads, sequenio.ads, directio.ads: Correct comment.

From-SVN: r138508

2008-08-01  Robert Dewar  <dewar@adacore.com>

	* lib-xref.adb: Add error defense.

From-SVN: r138507

2008-08-01  Robert Dewar  <dewar@adacore.com>

	* sem_prag.adb (Check_Form_Of_Interface_Name): Refine and improve
	warnings

From-SVN: r138506

2008-08-01  Robert Dewar  <dewar@adacore.com>

	* par-ch3.adb (P_Type_Declaration): Properly handle missing type
	keyword

From-SVN: r138503

2008-08-01  Thomas Quinot  <quinot@adacore.com>

	* sem_ch12.adb: Minor comment reformatting

From-SVN: r138502

	* sem_res.adb:
	(Resolve_Call): Check violation of No_Specific_Termination_Handlers

From-SVN: r138501

2008-08-01  Robert Dewar  <dewar@adacore.com>

	* sem_prag.adb (Analyze_Pragma): Put entries in alpha order
	(Analyze_Pragma): Make sure all GNAT pragmas call GNAT_Pragma

From-SVN: r138500

2008-08-01  Robert Dewar  <dewar@adacore.com>

	* scans.ads: Minor reformatting.

From-SVN: r138499

2008-08-01  Robert Dewar  <dewar@adacore.com>

	* par-prag.adb (Prag, case Wide_Character_Encoding): Deal with upper
	half encodings

From-SVN: r138498

2008-08-01  Robert Dewar  <dewar@adacore.com>

	* s-os_lib.adb: Minor reformatting

From-SVN: r138497

2008-08-01  Robert Dewar  <dewar@adacore.com>

	* prj.ads: Minor reformatting

From-SVN: r138496

2008-08-01  Robert Dewar  <dewar@adacore.com>

	* sem_ch4.adb: Minor reformatting
	Minor code reorganization

From-SVN: r138495

2008-08-01  Robert Dewar  <dewar@adacore.com>

	* prj-nmsc.adb: Minor reformatting

From-SVN: r138494

2008-08-01  Gary Dismukes  <dismukes@adacore.com>

	* exp_ch6.adb (Expand_Call): Adjustment to previous fix for passing
	correct accessibility levels. In the "when others" case, retrieve the
	access level of the Etype of Prev rather than Prev_Orig, because the
	original exression has not always been analyzed.

From-SVN: r138493

2008-08-01  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/utils.c (convert_vms_descriptor): Add gnu_expr_alt_type
	parameter.
	Convert the expression to it instead of changing its type in place.
	(build_function_stub): Adjust call to above function.

From-SVN: r138492

sem_ch4.adb (Analyze_One_Call): Handle complex overloading of a procedure call whose prefix is a parameterless...

2008-08-01  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch4.adb (Analyze_One_Call): Handle complex overloading of a
	procedure call whose prefix
	is a parameterless function call that returns an access_to_procedure.

From-SVN: r138491

exp_ch6.adb (Expand_Call): Remove ugly special-case code that resets Orig_Prev to Prev in the case where...

2008-08-01  Gary Dismukes  <dismukes@adacore.com>

	* exp_ch6.adb (Expand_Call): Remove ugly special-case code that resets
	Orig_Prev to Prev in the case where the actual is N_Function_Call or
	N_Identifier. This was interfering with other cases that are rewritten
	as N_Identifier, such as allocators, resulting in passing of the wrong
	accessibility level, and based on testing this code is apparently no
	longer needed at all.

From-SVN: r138490

	* sem_prag.adb:
	(Check_Precondition_Postcondition): If not generating code, analyze the
	expression in a postcondition that appears in a subprogram body, so that
	it is properly decorated for ASIS use.

From-SVN: r138489

	* mlib-utl.adb:
	(Adalib_Path): New variable to store the path of the adalib directory
	when procedure Specify_Adalib_Dir is called.
	(Lib_Directory): If Adalib_Path is not null, return its value
	(Specify_Adalib_Dir): New procedure
	
	* mlib-utl.ads (Specify_Adalib_Dir): New procedure

From-SVN: r138488

2008-08-01  Vincent Celier  <celier@adacore.com>

	* prj-attr.adb: New attribute Compiler'Name_Syntax (<lang>)
	
	* prj-nmsc.adb (Process_Compiler): Recognize attribute Name_Syntax
	
	* prj.adb (Object_Exist_For): Use Object_Generated, not
	Objects_Generated that is removed and was never modified anyway.

	* prj.ads:
	(Path_Syntax_Kind): New enumeration type
	(Language_Config): New component Path_Syntax, defaulted to Host.
	Components PIC_Option and Objects_Generated removed, as they are not
	used.

	* snames.adb: New standard name Path_Syntax
	
	* snames.ads: New standard name Path_Syntax

From-SVN: r138487

checks.adb (Apply_Float_Conversion_Check): If the expression to be converted is a real literal and the target type has...

2008-08-01  Ed Schonberg  <schonberg@adacore.com>

	* checks.adb (Apply_Float_Conversion_Check): If the expression to be
	converted is a real literal and the target type has static bounds,
	perform the conversion exactly to prevent floating-point anomalies on
	some targets.

From-SVN: r138486

2008-08-01  Robert Dewar  <dewar@adacore.com>

	* sem_ch6.adb (Process_PPCs): Don't copy spec PPC to body if not
	generating code

From-SVN: r138485

2008-08-01  Jerome Lambourg  <lambourg@adacore.com>

	* s-os_lib.adb (Normalize_Pathname): Take care of double-quotes in
	paths, which are authorized by Windows but can lead to errors when used
	elsewhere.

From-SVN: r138484