PR tree-optimization/53265
	* common.opt (Waggressive-loop-optimizations): New option.
	* tree-ssa-loop-niter.c: Include tree-pass.h.
	(do_warn_aggressive_loop_optimizations): New function.
	(record_estimate): Call it.  Don't add !is_exit bounds to loop->bounds
	if number_of_latch_executions returned constant.
	(estimate_numbers_of_iterations_loop): Call number_of_latch_executions
	early.  If number_of_latch_executions returned constant, set
	nb_iterations_upper_bound back to it.
	* cfgloop.h (struct loop): Add warned_aggressive_loop_optimizations
	field.
	* Makefile.in (tree-ssa-loop-niter.o): Depend on $(TREE_PASS_H).
	* doc/invoke.texi (-Wno-aggressive-loop-optimizations): Document.

	* gcc.dg/pr53265.c: New test.
	* gcc.dg/torture/pr49518.c: Add -Wno-aggressive-loop-optimizations
	to dg-options.
	* g++.dg/opt/longbranch2.C (EBCOTLut): Double sizes of a2 and a3
	arrays.
	* gcc.dg/tree-ssa/cunroll-10.c (main): Rename to foo.  Add argument
	n, use it as high bound instead of 4.

	* unwind-dw2.c (execute_cfa_program): Avoid
	-Waggressive-array-optimizations warnings for DW_CFA_GNU_window_save
	on targets with DWARF_FRAME_REGISTERS < 32.

	* testsuite/libmudflap.c/fail37-frag.c: Add optimization barrier.

From-SVN: r196650

	* config/aarch64/t-aarch64-linux (MULTARCH_DIRNAME): Remove.
	(MULTILIB_OSDIRNAMES): Set.
	* genmultilib: If defaultosdirname doesn't start with :: , set
	defaultosdirname2 instead, clear it and emit two . multilib_raw
	entries instead of just one.

From-SVN: r196649

2013-03-13  Benjamin Kosnik  <bkoz@redhat.com>

	* doc/html/*: Regenerate.

From-SVN: r196647

	* config/sh/linux.h (TARGET_DEFAULT): Remove MASK_USERMODE.
	(SUBTARGET_OVERRIDE_OPTIONS): Set TARGET_USERMODE as default.
	* config/sh/netbsd-elf.h (TARGET_DEFAULT): Remove MASK_USERMODE.
	(SUBTARGET_OVERRIDE_OPTIONS): New.

From-SVN: r196646

From-SVN: r196645

2013-03-12  Andrew John Hughes  <gnu.andrew@redhat.com>

	* include/posix-threads.h:
	(_Jv_MutexCheckMonitor(_Jv_Mutex_t)): Use
	pthread_equal rather than !=.

From-SVN: r196639

	PR target/49880
	* config/sh/sh.opt (FPU_SINGLE_ONLY): New mask.
	(musermode): Convert to Var(TARGET_USERMODE).
	* config/sh/sh.h (SELECT_SH2A_SINGLE_ONLY, SELECT_SH4_SINGLE_ONLY,
	MASK_ARCH): Add MASK_FPU_SINGLE_ONLY.
	* config/sh/sh.c (sh_option_override): Use
	TARGET_FPU_DOUBLE || TARGET_FPU_SINGLE_ONLY for call-fp case.
	* config/sh/sh.md (udivsi3_i1, divsi3_i1): Remove ! TARGET_SH4
	condition.
	(udivsi3_i4, divsi3_i4): Use TARGET_FPU_DOUBLE condition instead of
	TARGET_SH4.
	(udivsi3_i4_single, divsi3_i4_single): Use
	TARGET_FPU_SINGLE_ONLY || TARGET_FPU_DOUBLE instead of TARGET_HARD_SH4.

	PR target/49880
	* config/sh/lib1funcs.S (sdivsi3_i4, udivsi3_i4): Enable for SH2A.
	(sdivsi3, udivsi3): Remove SH4 check and always compile these functions.

	PR target/49880
	* gcc.target/sh/pr49880-1.c: New.
	* gcc.target/sh/pr49880-2.c: New.
	* gcc.target/sh/pr49880-3.c: New.
	* gcc.target/sh/pr49880-4.c: New.
	* gcc.target/sh/pr49880-5.c: New.

From-SVN: r196636

	* config/i386/cygwin.h (SHARED_LIBGCC_SPEC): Make shared libgcc the
	default setting.

From-SVN: r196634

2013-03-13  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.dg/cpp0x/alias-decl-32.C: Remove redundant bits.

From-SVN: r196633

2013-03-13  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/56608
	* tree-vect-slp.c (vect_schedule_slp): Do not remove scalar
	calls when vectorizing basic-blocks.

	* gcc.dg/vect/fast-math-bb-slp-call-3.c: New testcase.

From-SVN: r196632

re PR c++/56611 ([C++11] Template instantiation failure with variadic arguments and template aliases)

2013-03-13  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/56611
	* g++.dg/cpp0x/alias-decl-32.C: New.

From-SVN: r196631

2013-03-13  Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/56609
	* include/std/type_traits (is_fundamental): Add std::nullptr_t.
	* testsuite/20_util/is_fundamental/value.cc: Extend.
	* testsuite/20_util/is_compound/value.cc: Likewise.

From-SVN: r196630

	PR plugins/45078
	* config.gcc: On arm, mips, sh and sparc add vxworks-dummy.h to
	tm_file.

From-SVN: r196629

From-SVN: r196625

From-SVN: r196614

re PR libstdc++/56557 (Link error about `std::fstream' or `std::stringstream' with `-flto' and `-rdynamic' options)

	PR lto/56557
	* lto-streamer-out.c (output_symbol_p): Skip references from
	constructors of external variables.

From-SVN: r196613

re PR rtl-optimization/56571 (ICE in copyprop_hardreg_forward_1, at regcprop.c (insn does not satisfy its constraints !))

	PR middle-end/56571
	* valtrack.c (cleanup_auto_inc_dec): Unshare clobbers originating
	from pseudos.
	* emit-rtl.c (verify_rtx_sharing): Likewise.
	(copy_insn_1): Likewise.
	* rtl.c (copy_rtx): Likewise.
	PR middle-end/56571
	* gcc.c-torture/compile/pr56571.c: New testcase.

From-SVN: r196612

	PR target/56263
	* config/avr/avr.c (TARGET_CONVERT_TO_TYPE): Define to...
	(avr_convert_to_type): ...this new static function.
	* config/avr/avr.opt (-Waddr-space-convert): New C option.
	* doc/invoke.texi (AVR Options): Document it.

From-SVN: r196611

	* gcc.dg/tree-ssa/vector-4.c: Add comment regarding xfail.
	* gcc.dg/tree-ssa/pr55579.c: Likewise.

From-SVN: r196608

From-SVN: r196607

	PR target/56591
	* config/avr/avr.c (avr_print_operand): Add space after '%c' in
	output_operand_lossage message.

From-SVN: r196604

2013-03-11  Tobias Burnus  <burnus@net-b.de>

        * io/transfer.c (read_block_direct): Correct condition.
        * intrinsics/execute_command_line.c (execute_command_line):
        Remove dead code for the HAVE_FORK case.

From-SVN: r196603

2013-03-11  Tobias Burnus  <burnus@net-b.de>

        * gfortran.texi (STRUCTURE and RECORD): State more clearly how
        to convert them into derived types.

From-SVN: r196602

	PR c++/56567
	* typeck.c (check_return_expr): Disallow returning init list here.
	* semantics.c (apply_deduced_return_type): Not here.

From-SVN: r196600

From-SVN: r196598

2013-02-26  Dominique d'Humieres  <dominiq@lps.ens.fr>

	* gcc.dg/inline_3.c: Remove target and dg-excess-errors.
	* gcc.dg/inline_4.c: Likewise.
	* gcc.dg/unroll_2.c: Likewise.
	* gcc.dg/unroll_3.c: Likewise.
	* gcc.dg/unroll_4.c: Likewise.

From-SVN: r196597

	PR target/56470
	* arm.c (shift_op): Validate RTL pattern on the fly.
	(arm_print_operand, case 'S'): Don't use shift_operator to validate
	the RTL.

From-SVN: r196595

re PR testsuite/54119 (FAIL: gcc.dg/tree-ssa/vector-4.c scan-tree-dump-times gimple "VEC_PERM_EXPR <a, b, { 0, 4, 1, 5 }>;" 1)

	PR testsuite/54119
	* gcc.dg/tree-ssa/vector-4.c: xfail on 32-bit hppa*-*-*.

From-SVN: r196592

re PR debug/56307 (FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s")

	PR debug/56307
	* gcc.dg/tree-ssa/pr55579.c: xfail 32-bit hppa*-*-hpux*.

From-SVN: r196591

	PR target/40797
	* gcc.c-torture/compile/pr40797.c: New.

From-SVN: r196590

	* gcc.dg/pr44194-1.c: Skip compilation on hppa*64*-*-*.

From-SVN: r196589

	PR target/56347
	* config/pa/pa.md (call_value): Check for calls to powf and direct to
	new call patterns that clobber %fr12.
	(call_val_powf, call_val_powf_pic, call_val_powf_64bit): New insn,
	split and postreload patterns.
	* config/pa/pa.c (pa_conditional_register_usage): Revert marking
	registers %fr12 and %fr12R as call used.

From-SVN: r196588

From-SVN: r196587

From-SVN: r196581

2013-03-10  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/56575
	* expr.c (gfc_default_initializer): Check that a class declared
	type has any components.
	* resolve.c (resolve_fl_derived0): On failing the test for C437
	set the type to BT_UNKNOWN to prevent repeat error messages.
2013-03-10  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/56575
	* gfortran.dg/class_56.f90: New test.

From-SVN: r196580

From-SVN: r196579

	* dse.c (delete_dead_store_insn): Respect TDF_DETAILS.
	(canon_address, record_store, replace_read, check_mem_read_rtx,
	scan_insn, dse_step1, dse_step2_init, dse_step2_spill,
	dse_step4, dse_step5_nospill, dse_step5_spill, dse_step6,
	rest_of_handle_dse): Likewise.

From-SVN: r196576

From-SVN: r196575

2013-03-09  Paolo Carlini  <paolo.carlini@oracle.com>

	* testsuite/20_util/function_objects/mem_fn/55463.cc: Avoid
	-Wunused warnings.

From-SVN: r196572

gcc/
	PR middle-end/56524
	* tree.h (tree_optimization_option): Rename target_optabs to optabs.
	Add base_optabs.
	(TREE_OPTIMIZATION_OPTABS): Update after previous field change.
	(TREE_OPTIMIZATION_BASE_OPTABS): New macro.
	(save_optabs_if_changed): Replace with...
	(init_tree_optimization_optabs): ...this.
	* optabs.c (save_optabs_if_changed): Rename to...
	(init_tree_optimization_optabs): ...this.  Take the optimization node
	as argument.  Do nothing if the base optabs are already correct.
	Reuse the existing TREE_OPTIMIZATION_OPTABS memory if we need
	to recompute optabs.
	* function.h (function): Remove optabs field.
	* function.c (invoke_set_current_function_hook): Call
	init_tree_optimization_optabs.  Use the result to initialize
	this_fn_optabs.

gcc/c-family/
	PR middle-end/56524
	* c-common.c (handle_optimize_attribute): Don't call
	save_optabs_if_changed.

gcc/testsuite/
	PR middle-end/56524
	* gcc.target/mips/pr56524.c: New test.

From-SVN: r196570