git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111518 138bc75d-0d04-0410-961f-82ee72b054a4

        * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
        values of n.



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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111509 138bc75d-0d04-0410-961f-82ee72b054a4

	(define_memory_constraint, define_address_constraint): New MD forms.
	* gensupport.c (process_rtx): Put define_constraint etc on the
	predicate queue.
	* genpreds.c (process_define_predicate): Adjust comment.  Validate
	the name, and call validate_exp to validate the expression.
	(mark_mode_tests, write_extract_subexp): Can assume correct input.
	(write_predicate_expr): Likewise.  NAME argument no longer necessary;
	all callers changed.
	(validate_exp, needs_variable, struct constraint_data)
	(constraints_by_letter_table, first_constraint, last_constraint_ptr)
	(FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
	(const_dbl_constraints, constraint_max_namelen)
	(have_register_constraints, have_memory_constraints)
	(have_address_constraints, have_address_constraints)
	(have_extra_constraints, have_const_int_constraints)
	(have_const_dbl_constraints, mangle, add_constraint)
	(process_define_constraint, process_define_register_constraint)
	(write_enum_constraint_num, write_lookup_constraint)
	(write_insn_constraint_len, write_regclass_for_constraint)
	(write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
	(write_insn_extra_memory_constraint)
	(write_insn_extra_address_constraint)
	(write_satisfies_constraint_fns): New.
	(write_tm_preds_h): If we have new-style constraint definitions,
	prototype the functions generated from them, and define the
	old constraint interface (still used by generic code) in terms of
	those functions.
	(write_insn_preds_c): If we have new-style constraint definitions,
	generate all relevant functions from those definitions.
	(main): Handle define_constraint etc.
	* genoutput.c (struct constraint_data, indep_constraints)
	(mdep_constraint_letters, constraints_by_letter_table, note_constraint)
	(mdep_constraint_len): New data structures and functions, defined
	#ifdef USE_MD_CONSTRAINTS.
	(check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
	(validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
	use new logic to validate operand constraints against constraint
	definitions.
	(main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
	defined.
	* defaults.h: If none of the old-style constraint macros are
	defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
	old-style macros; and poison REG_CLASS_FROM_LETTER,
	CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
	EXTRA_CONSTRAINT.
	* recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
	* doc/md.texi: Document new constraint-definition mechanism and the
	C interface it provides.  Remove references to old mechanism
 	elsewhere in the document.
	(Machine Constraints): Use pathnames relative to gcc directory,
	i.e. config/ARCH/FILE.  Change i386 section to refer to
	config/i386/predicates.md; update that section to match docstrings.
	* doc/tm.texi: Move all documentation of the old constraint-
	definition macros to their own section, clearly mark as obsolete.

	* config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
	(u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
	definitions.
	* config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
	(CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
	* config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
	constraint strings.
	(splits and peepholes): Use satisfies_constraint_*.
	* config/i386/i386.c (memory_address_length)
	(ix86_attr_length_immediate_default): Use satisfies_constraint_*.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111508 138bc75d-0d04-0410-961f-82ee72b054a4

	PR libgfortran/26464
	* gfortran.dg/backspace_5.f: New test.
	* gfortran.dg/backspace_6.f: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111507 138bc75d-0d04-0410-961f-82ee72b054a4

	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.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111506 138bc75d-0d04-0410-961f-82ee72b054a4

	* 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.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111501 138bc75d-0d04-0410-961f-82ee72b054a4

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111498 138bc75d-0d04-0410-961f-82ee72b054a4

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


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111489 138bc75d-0d04-0410-961f-82ee72b054a4

	* 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.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111488 138bc75d-0d04-0410-961f-82ee72b054a4

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




git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111487 138bc75d-0d04-0410-961f-82ee72b054a4

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111486 138bc75d-0d04-0410-961f-82ee72b054a4

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


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111475 138bc75d-0d04-0410-961f-82ee72b054a4

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


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111474 138bc75d-0d04-0410-961f-82ee72b054a4

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


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111472 138bc75d-0d04-0410-961f-82ee72b054a4

	* 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.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111471 138bc75d-0d04-0410-961f-82ee72b054a4

	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.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111470 138bc75d-0d04-0410-961f-82ee72b054a4

	(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.



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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111467 138bc75d-0d04-0410-961f-82ee72b054a4

	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.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111461 138bc75d-0d04-0410-961f-82ee72b054a4

	* 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.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111459 138bc75d-0d04-0410-961f-82ee72b054a4

	relative to gcc directory (i.e. config/CPU/file).  Add missing
	@table @code ... @end table to M32C subsection.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111457 138bc75d-0d04-0410-961f-82ee72b054a4

	* 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.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111456 138bc75d-0d04-0410-961f-82ee72b054a4

	* 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.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111454 138bc75d-0d04-0410-961f-82ee72b054a4

	    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.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111453 138bc75d-0d04-0410-961f-82ee72b054a4

        * 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.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111452 138bc75d-0d04-0410-961f-82ee72b054a4

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



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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111449 138bc75d-0d04-0410-961f-82ee72b054a4

	* 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.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111443 138bc75d-0d04-0410-961f-82ee72b054a4

	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.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111442 138bc75d-0d04-0410-961f-82ee72b054a4

	* 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.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111441 138bc75d-0d04-0410-961f-82ee72b054a4

	Richard Guenther  <rguenther@suse.de>

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


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111440 138bc75d-0d04-0410-961f-82ee72b054a4

	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.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111438 138bc75d-0d04-0410-961f-82ee72b054a4

	simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.


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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111435 138bc75d-0d04-0410-961f-82ee72b054a4

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



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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111428 138bc75d-0d04-0410-961f-82ee72b054a4

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.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111427 138bc75d-0d04-0410-961f-82ee72b054a4

	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.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111425 138bc75d-0d04-0410-961f-82ee72b054a4