2006-02-27  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/26464
	* io/file_pos.c (st_backspace): Flush and truncate file
	when in AFTER_ENDFILE condition.
	* io/transfer.c (st_read_done): Remove flush, no longer needed.

From-SVN: r111506

	PR 26473
	* configure.ac (ACX_NONCANONICAL_TARGET): Use it.
	* Makefile.am (target_noncanonical): Define.
	(libsubincludedir): New variable.
	(nobase_libsubinclude_HEADERS): Likewise.
	(nobase_include_HEADERS): Remove.
	* configure: Regenerated.
	* Makefile.in: Likewise.
	* aclocal.m4: Regenerated.

From-SVN: r111501

From-SVN: r111498

2006-02-27  Daniel Berlin  <dberlin@dberlin.org>

	* lambda-code.c (can_convert_to_perfect_nest): Allow any type of

From-SVN: r111489

	PR other/26208
	* unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
	(extract_cie_info): Handle S flag in augmentation string.
	(execute_cfa_program): If context->signal_frame, execute also
	fs->pc == context->ra instructions.
	(uw_frame_state_for): If context->signal_frame, don't subtract one
	from context->ra to find FDE.
	(uw_update_context_1): Set context->signal_frame to
	fs->signal_frame.
	(_Unwind_GetIPInfo): New function.
	* unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
	* unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
	of _Unwind_GetIP.
	* unwind-sjlj.c (_Unwind_GetIPInfo): New function.
	* unwind-generic.h (_Unwind_GetIPInfo): New prototype.
	* unwind-compat.c (_Unwind_GetIPInfo): New function.
	* libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
	* config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
	* config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
	* config/i386/linux-unwind.h (x86_fallback_frame_state,
	x86_64_fallback_frame_state): Set fs->signal_frame.
	* config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
	(MD_FROB_UPDATE_CONTEXT): Define unconditionally.
	(frob_update_context): Likewise.  Workaround missing S flag in
	Linux 2.6.12 - 2.6.16 kernel vDSOs.
	* config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
	Remove the psw_addr + 1 hack.
libjava/
	* exception.cc (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
	of _Unwind_GetIP.
	* include/i386-signal.h (MAKE_THROW_FRAME): Change into empty macro.
	(HANDLE_DIVIDE_OVERFLOW): Don't adjust _res->eip if falling through
	to throw.
	* include/x86_64-signal.h (MAKE_THROW_FRAME): Change into empty
	macro.
	* include/powerpc-signal.h (MAKE_THROW_FRAME): Change into empty
	macro.
libstdc++-v3/
	* libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Use
	_Unwind_GetIPInfo instead of _Unwind_GetIP.

From-SVN: r111488

2006-02-27  Daniel Berlin  <dberlin@dberlin.org>

	* tree-ssa-structalias.c (get_constraint_for): Move code to deal
	with aggregates here.
	(find_func_aliases): Remove code for &<aggregate> from here.

From-SVN: r111487

From-SVN: r111486

2006-02-27  Paolo Carlini  <pcarlini@suse.de>

	PR libstdc++/14866
	* testsuite/27_io/ios_base/sync_with_stdio/1.cc: Redirect
	stderr instead.

From-SVN: r111475

2006-02-27  Paolo Carlini  <pcarlini@suse.de>

	PR libstdc++/14866
	* testsuite/27_io/ios_base/sync_with_stdio/1.cc: Redirect
	stderr instead.

From-SVN: r111474

	* Add <tr1/cstdbool> and <tr1/stdbool.h>, missing from
	the last commit.

From-SVN: r111472

	* fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
	(X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
	Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
	as (X & C) ne/eq 0.

	* gcc.dg/fold-eqandnot-1.c: New test case.

From-SVN: r111471

	PR middle-end/19983
	* real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.

	* gcc.c-torture/execute/ieee/builtin-nan-1.c: New test case.

From-SVN: r111470

	* opts.c (decode_options): Do not handle flag_strength_reduce.
	(common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
	and OPT_fstrength_reduce.
	* tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
	flag_prefetch_loop_arrays for being nonzero.
	* common.opt (floop-optimize, frerun-loop-opt): Resurrected as
	no-ops.
	(fprefetch-loop-arrays-rtl): Removed.
	(flag_prefetch_loop_arrays): Do not specify the value.

	* doc/passes.texi: Update documentation of loop optimizer
	passes.
	* doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
	-frerun-loop-opt): Remove.

	* gcc.target/i386/20000614-2.c: Do not use -fno-strength-reduce.
	* gcc.dg/20030324-1.c: Do not use -fstrength-reduce.

From-SVN: r111469

From-SVN: r111467

re PR tree-optimization/26421 (tree-ssa-alias.c:find_used_portions considers foo(&var) use all elements of var)

2006-02-26  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26421
	* tree-ssa-alias.c (find_used_portions): Don't treat parameters
	in function calls that are ADDR_EXPRs as using the whole structure.

	* gcc.dg/tree-ssa/pr26421.c: New testcase.

From-SVN: r111461

gcc/
	* common.opt (-floop-optimize, -frerun-loop-opt): Remove.
	* tree-pass.h (pass_loop_optimize): Remove.
	* passes.c (pass_loop_optimize): Never run it.
	* toplev.c (backend_init): Don't call init_loop.
	* opts.c (flag_loop_optimize_set): Remove.
	(decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
	(common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
	the old RTL loop optimizer when profiling enabled.
	* predict.c (tree_estimate_probability): Always strip builtin_expect.
	* cfgcleanup.c (try_forward_edges): Don't avoid killing loop
	pre-headers for the sake of the old RTL loop optimizer.
	* Makefile.in: Remove all references to loop.o.

	* doc/invoke.texi: Remove all references to -floop-optimize
	and -frerun-loop-opt.

testsuite/
	* gcc.dg/20031201-1.c: Don't use -frerun-loop-opt.
	* g++.old-deja/g++.robertl/eb132.C: Likewise.

From-SVN: r111459

	* doc/md.texi (Machine Constraints): Refer to all files with paths
	relative to gcc directory (i.e. config/CPU/file).  Add missing
	@table @code ... @end table to M32C subsection.

From-SVN: r111457

2006-02-26  Paolo Carlini  <pcarlini@suse.de>

	* include/tr1/cmath: Add templates (8.16.3).	
	* include/tr1/cstbool: New.
	* include/tr1/stdbool.h: Likewise.
	* include/Makefile.am: Add.
	* testsuite/tr1/8_c_compatibility/cmath/templates.cc: New.
	* testsuite/tr1/headers.cc: Update.
	* acinclude.m4 ([GLIBCXX_CHECK_C99_TR1]): Add <stdbool.h> check.
	* docs/html/ext/tr1.html: Update.
	* include/Makefile.in: Regenerate.
	* config.h.in: Likewise.
	* configure: Likewise.

From-SVN: r111456

	* fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
	(X & 1) == 0.
	<BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.

	* gcc.dg/fold-even-1.c: New test case.

From-SVN: r111454

2006-02-26  Roger Sayle  <roger@eyesopen.com>
	    James A. Morrison  <phython@gcc.gnu.org>

	PR middle-end/21137
	* fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
	when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
	new constant C2<<C1, or as (X<0) or (X,false) depending upon the
	signedness of the shift operation.

	* gcc.dg/fold-eqandshift-1.c: New test case.


Co-Authored-By: James A. Morrison <phython@gcc.gnu.org>

From-SVN: r111453

        PR tree-optimization/25125
        * gcc.dg/vect/wrapv-vect-7.c, gcc.dg/vect/wrapv-vect-reduc-2char.c,
        gcc.dg/vect/wrapv-vect-reduc-2short.c: New tests.

From-SVN: r111452

        PR tree-optimization/26359
        * tree-ssa-alias.c (new_type_alias): Set fields for new tag.

From-SVN: r111451

From-SVN: r111449

simplify-rtx.c (simplify_relational_operation_1): Simplify (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.


	* simplify-rtx.c (simplify_relational_operation_1):  Simplify
	(X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
	as X == 0, and some symmetry related transformations.
	Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.

From-SVN: r111443

	PR middle-end/23673
	* fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
	and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
	symmetry related transformations.  Fold (X^C1) == C2 as
	X == (C1^C2).

	* gcc.dg/fold-eqxor-1.c: New test case.
	* gcc.dg/fold-eqxor-2.c: Likewise.
	* gcc.dg/fold-eqxor-3.c: Likewise.

From-SVN: r111442

2006-02-25  Shantonu Sen  <ssen@opendarwin.org>

	* config/posix/sem.h: Define BROKEN_POSIX_SEMAPHORES functions.
	* config/posix/sem.c: Implement the above.

2006-02-25  Andreas Tobler  <a.tobler@schweiz.ch>

	* configure.ac (HAVE_BROKEN_POSIX_SEMAPHORES): Check for darwin and
	define HAVE_BROKEN_POSIX_SEMAPHORES.
	* configure: Rebuilt.
	* config.h.in: Rebuilt.

From-SVN: r111441

2006-02-25  Juergen Weigert  <jw@suse.de>
	Richard Guenther  <rguenther@suse.de>

	* scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.

Co-Authored-By: Richard Guenther <rguenther@suse.de>

From-SVN: r111440

2006-02-25  Thomas Koenig  <Thomas.Koenig@online.de>

	PR fortran/23092
	* trans-intrinsic.c (gfc_conv_intrinsic_arith):  If the
	mask expression exists and has rank 0, enclose the generated
	loop in an "if (mask)".
	* (gfc_conv_intrinsic_minmaxloc):  Likewise.

2006-02-25  Thomas Koenig  <Thomas.Koenig@online.de>

	PR fortran/23092
	* scalar_mask_1.f90:  New test.

From-SVN: r111438

combine.c (gen_lowpart_or_truncate): Call simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.

	* combine.c (gen_lowpart_or_truncate): Call
	simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.

From-SVN: r111437

From-SVN: r111435

	* doc/invoke.texi: Move -fopenmp description to "Options for
	Code Generation".
	Remove reference to -lgomp.

From-SVN: r111429

From-SVN: r111428

2006-02-24  Geoffrey Keating  <geoffk@apple.com>

	* doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
	* doc/invoke.texi (C++ Dialect Options): Document 
	-fno-use-cxa-get-exception-ptr.
	* configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
	* configure: Regenerate.
	* c.opt (fuse-cxa-get-exception-ptr): New.
	* c-opts.c (c_common_handle_option): Handle
	OPT_fuse_cxa_get_exception_ptr.
	* c-common.c (flag_use_cxa_atexit): Update documentation.
	(flag_use_cxa_get_exception_ptr): New.
	* c-common.h (flag_use_cxa_get_exception_ptr): New.
	* config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
	documentation.
	(C_COMMON_OVERRIDE_OPTIONS): New.

Index: gcc/testsuite/ChangeLog
2006-02-24  Geoffrey Keating  <geoffk@apple.com>

	* g++.dg/eh/uncaught1.C: Add dg-options for ppc-darwin.
	* g++.dg/eh/uncaught2.C: New.
	* g++.dg/eh/uncaught3.C: New.

Index: gcc/cp/ChangeLog
2006-02-24  Geoffrey Keating  <geoffk@apple.com>

	* except.c (expand_start_catch_block): Handle
	flag_use_cxa_get_exception_ptr.

From-SVN: r111427

re PR middle-end/24952 (ICE:  RTL check: expected code 'set' or 'clobber', have 'unspec' in try_combine, at combine.c:2898)


	PR middle-end/24952
	* combine.c (try_combine): Explicitly check whether GET_CODE is
	a SET or a CLOBBER, instead on checking that it isn't a USE.

From-SVN: r111425

2006-02-24  Paolo Carlini  <pcarlini@suse.de>

	* include/tr1/array (array<>::swap, assign): Implement.
	* include/tr1/array (operator==, operator!=, operator<,
	operator>, operator>=, operator<=, swap, get): Inline.
	* testsuite/tr1/6_containers/array/requirements/member_swap.cc: New.
	* testsuite/tr1/6_containers/array/requirements/assign.cc: Likewise.
	* testsuite/tr1/6_containers/array/specialized_algorithms/swap.cc:
	Likewise.

From-SVN: r111424

fold-const.c (fold_comparison): New subroutine of fold_binary containing transformations common to both the...


	* fold-const.c (fold_comparison): New subroutine of fold_binary
	containing transformations common to both the equality and
	ordering relational operators, factored out of fold_binary.
	(fold_binary): Separate out the equality operators (EQ_EXPR
	and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
	LE_EXPR and GE_EXPR), calling fold_comparison to perform the
	transformations common to both.
	(fold_div_compare): Fix latent bugs in the previously unreachable 
	LT_EXPR and GE_EXPR cases.

From-SVN: r111423

2006-02-24  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/26423
	* gfortran.dg/read_many_1.f: New test.

From-SVN: r111421

2006-02-24  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/26423
	* io/unix.c (fd_seek): Revert change from 25949.
	(fd_read): Same.
	(fd_write): Same.

From-SVN: r111420

	* config/rs6000/rs6000.c (rs6000_init_builtins): Change
	decl libname for clog to __clog on AIX.

	* config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.

From-SVN: r111418

2006-02-24  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/26409
	* resolve.c (resolve_contained_functions, resolve_types,
	gfc_resolve): Revert patch of 2006-02-19.

From-SVN: r111417