* configure.ac: Don't define ENABLE_CHECKING whenever
	--enable-checking is seen, instead use similar --enable-checking=yes
	vs. --enable-checking=release default as gcc/ subdir has and
	define ENABLE_CHECKING if ENABLE_CHECKING is defined in gcc/.
	Define ENABLE_VALGRIND_CHECKING if requested.
	* lex.c (new_buff): If ENABLE_VALGRIND_CHECKING, put _cpp_buff
	struct first in the allocated buffer and result->base after it.
	(_cpp_free_buff): If ENABLE_VALGRIND_CHECKING, free buff itself
	instead of buff->base.
	* config.in: Regenerated.
	* configure: Regenerated.

From-SVN: r196333

re PR target/56445 (avr.c:11551:16: error: invoking macro FX_FTYPE_FX ar gument 1: empty macro arguments are undefined)

	PR target/56445
	* config/avr/avr.c (avr_init_builtins): Use 'n' instead of empty
	macro parameters with: FX_FTYPE_FX, FX_FTYPE_FX_INT, INT_FTYPE_FX,
	INTX_FTYPE_FX, FX_FTYPE_INTX.
	* config/avr/builtins.def: Adjust respective DEF_BUILTIN.

From-SVN: r196332

	(ata6286, atmega8a, atmega48pa, ata5790, ata5790n, ata5795)
	(atmega164pa, atmega165pa, atmega168pa, atmega16hva, atmega16hvb)
	(atmega16hvbrevb, atmega16m1, atmega16u4, atmega26hvg, atmega32a)
	(atmega32a, atmega3250pa, atmega3290pa, atmega32c1, atmega32m1)
	(atmega32u4, atmega32u6, atmega64a, atmega6490a, atmega6490p)
	(atmega64c1, atmega64m1, atmega64rfa2, atmega64rfr2, atmega32hvb)
	(atmega32hvbrevb, atmega16hva2, atmega48hvf, at90pwm161)
	(atmega128a, atmega1284, atmxt112sl, atmxt224, atmxt224e)
	(atmxt336s, atxmega16a4u, atxmega16c4, atxmega32a4u, atxmega32c4)
	(atxmega32e5, atxmega64a3u, atxmega64a4u, atxmega64b1, atxmega64b3)
	(atxmega64c3, atxmega64d4, atxmega128a3u, atxmega128b1)
	(atxmega128b3, atxmega128c3, atxmega128d4, atmxt540s, atmxt540sreva)
	(atxmega192a3u, atxmega192c3, atxmega256a3u, atxmega256c3)
	(atxmega384c3, atxmega384d3, atxmega128a4u): New AVR_MCU.
	(avrxmega6): Increase max flash segments from 5 to 6.
	* config/avr/t-multilib: Regenerate.
	* config/avr/avr-tables.opt: Regenerate.
	* doc/avr-mmcu.texi: Regenerate.

From-SVN: r196331

	* config/avr/avr.h (device_to_arch): Rename to device_to_ld.
	(avr_device_to_arch): Rename to avr_device_to_ld.
	(avr_device_to_as): New prototype.
	(EXTRA_SPEC_FUNCTIONS): Add device_to_as.
	(ASM_SPEC): Use device_to_as to get -mmcu= and -mno-skip-bug=.
	* config/avr/driver-avr.c (avr_device_to_as): New.
	(avr_device_to_arch): Rename to avr_device_to_ld.

From-SVN: r196330

2013-02-28  Naveen H.S  <Naveen.Hurugalawadi@caviumnetworks.com>

	* gcc.dg/tree-ssa/slsr-1.c: Allow widening multiplications.
	* gcc.dg/tree-ssa/slsr-2.c: Likewise.
	* gcc.dg/tree-ssa/slsr-3.c: Likewise.

From-SVN: r196329

From-SVN: r196328

	PR middle-end/56461
	* tree-vect-data-refs.c (vect_permute_load_chain): Avoid using copy
	method on dr_chain and result_chain.

From-SVN: r196325

	PR middle-end/56461
	* tree-ssa-loop-niter.c (maybe_lower_iteration_bound): Call
	pointer_set_destroy on not_executed_last_iteration.

From-SVN: r196324

	PR middle-end/56461
	* tree-vect-loop.c (vectorizable_reduction): Release vect_defs
	vector.

From-SVN: r196323

	PR middle-end/56461
	* ipa-pure-const.c (propagate): Use FOR_EACH_FUNCTION instead of
	FOR_EACH_DEFINED_FUNCTION when freeing state.

From-SVN: r196322

	PR middle-end/56461
	* df-scan.c (df_insn_delete): Use df_scan_free_mws_vec before
	pool_free.
	(df_insn_rescan_debug_internal): Use df_scan_free_mws_vec before
	overwriting it.

From-SVN: r196321

	PR middle-end/56461
	* ipa-cp.c (decide_whether_version_node): Call vec_free on
	known_aggs[i].items and release known_aggs vector.

From-SVN: r196320

	PR middle-end/56461
	* ipa-reference.c (propagate): Free node_info even for alias nodes.

From-SVN: r196319

	PR c++/56358
	PR c++/56323
	* name-lookup.c (do_class_using_decl): Use ctor_identifier instead
	of the base name for inheriting ctors.
	(push_class_level_binding_1): Remove inheriting ctor handling.
	* pt.c (tsubst_decl) [USING_DECL]: Likewise.
	* class.c (add_implicitly_declared_members): Adjust.

From-SVN: r196316

 *  gcc/config/microblaze/microblaze.c (microblaze_emit_compare):
     Use xor for EQ/NE comparisions
 *  gcc/config/microblaze/microblaze.md (cstoresf4): Add constraints
     (cbranchsf4): Adjust operator to comparison_operator

From-SVN: r196315

	PR middle-end/56461
	* tree-flow.h (edge_var_map_vector): Change into va_heap, vl_embed
	vector.
	* tree-ssa.c (redirect_edge_var_map_add): Use vec_safe_reserve and
	vec_safe_push, always update *slot.
	(redirect_edge_var_map_clear): Use vec_free.
	(redirect_edge_var_map_dup): Use vec_safe_copy and vec_safe_reserve.
	(free_var_map_entry): Use vec_free.
	* tree-cfgcleanup.c (remove_forwarder_block_with_phi): Use
	FOR_EACH_VEC_SAFE_ELT instead of FOR_EACH_VEC_ELT.

From-SVN: r196313

	* make_sunver.pl: Enforce C locale.

From-SVN: r196309

re PR middle-end/45472 ([Middle-end volatile semantics] ICE: in move_op_ascend, at sel-sched.c:6124 with -fselective-scheduling2)

        PR middle-end/45472

	gcc/
        * sel-sched-ir.c (merge_expr): Also change vinsn of merged expr
        when the may_trap_p bit of the exprs being merged differs.

        Reorder tests for speculativeness in the logical and operator.

	testsuite/
	* gcc.dg/45472.c: New test.

From-SVN: r196308

incpath.c (add_standard_paths): Use reconcat instead of concat where appropriate and avoid leaking memory.

	* incpath.c (add_standard_paths): Use reconcat instead of concat
	where appropriate and avoid leaking memory.

From-SVN: r196306

	* opts.h: Include obstack.h.
	(opts_concat): New prototype.
	(opts_obstack): New declaration.
	* opts.c (opts_concat): New function.
	(opts_obstack): New variable.
	(init_options_struct): Call gcc_init_obstack on opts_obstack.
	(finish_options): Use opts_concat instead of concat
	and XOBNEWVEC instead of XNEWVEC.
	* opts-common.c (generate_canonical_option, decode_cmdline_option,
	generate_option): Likewise.
	* Makefile.in (OPTS_H): Depend on $(OBSTACK_H).
	* lto-wrapper.c (main): Call gcc_init_obstack on opts_obstack.

From-SVN: r196305

	PR target/56455
	* stmt.c (expand_switch_as_decision_tree_p): If flag_pic
	and ASM_OUTPUT_ADDR_DIFF_ELT isn't defined, return true.

From-SVN: r196304

From-SVN: r196300

	PR libstdc++/56012
	* include/bits/atomic_base.h (atomic_flag): Fix narrowing conversion.
	* testsuite/29_atomics/atomic/operators/56012.cc: New.

	PR libstdc++/56011
	* include/std/atomic (atomic<bool>::operator=(bool) volatile): Add
	missing overload.
	* testsuite/29_atomics/atomic/operators/56011.cc: New.

From-SVN: r196296

	PR middle-end/56461
	* lra-spills.c (lra_spill): Free spill_hard_reg at the end.

From-SVN: r196294

        * config/arm/arm.c (const_ok_for_dimode_op): Back out last change.
        (arm_block_move_unaligned_straight): Likewise.
        (arm_adjust_block_mem): Likewise.

From-SVN: r196293

        PR target/54662
        * config/mep/t-mep (mep-pragma.o): Use ALL_COMPILERFLAGS instead of
        ALL_CFLAGS.

From-SVN: r196291

        PR target/54640
        * config/arm/arm.c (const_ok_for_dimode_op): Make code consistent
        for HOST_WIDE_INT of 32 bit / same size as int.
        (arm_block_move_unaligned_straight): Likewise.
        (arm_adjust_block_mem): Likewise.

From-SVN: r196290

        PR target/54639
        * config/mn10300/mn10300.c (mn10300_expand_epilogue): Avoid offset
        type promotion to unsigned.

From-SVN: r196289

        PR target/52550
        * config/tilegx/tilegx.c (tilegx_expand_prologue):
        Remove unused variable cfa_offset.
        * config/tilepro/tilepro.c (tilepro_expand_prologue): Likewise.

From-SVN: r196288

        PR target/52501
        * config/cr16/cr16-protos.h: Move end of RTX_CODE guard below end
        of prologue/epilogue functions.

From-SVN: r196287

        PR target/52500
        * config/c6x/c6x.c (dbx_register_map): Change to unsigned.
        * config/c6x/c6x.h (dbx_register_map): Update declaration.

From-SVN: r196286

        PR target/48901
        * config/lm32/lm32.c (gen_int_relational): Remove unused variables
        temp, cond and label.
        * config/lm32/lm32.md (ashlsi3): Remove unused variable one.

From-SVN: r196285

2013-02-26  David Binderman  <dcb314@hotmail.com>

	PR c++/55632
	* decl.c (grokdeclarator): Tidy publicp assignment.

From-SVN: r196284

	PR c++/56419
	* semantics.c (begin_transaction_stmt): Set TREE_SIDE_EFFECTS.
	(build_transaction_expr): Same.

From-SVN: r196282

re PR tree-optimization/56426 (Segmentation fault in find_var_scev_info, at tree-scalar-evolution.c:358)

2013-02-26  Marek Polacek  <polacek@redhat.com>

        PR tree-optimization/56426
        * tree-ssa-loop.c (tree_ssa_loop_init): Always call
        scev_initialize.

From-SVN: r196281

2013-02-26  Richard Biener  <rguenther@suse.de>

	PR target/56444
	* config/mn10300/mn10300.c (mn10300_scan_for_setlb_lcc): Remove
	unused variable loops.

From-SVN: r196280

	PR tree-optimization/56448
	* fold-const.c (operand_equal_p) <case tcc_reference>: Don't look at
	TREE_SIDE_EFFECTS if flags contain OEP_CONSTANT_ADDRESS_OF.
	Clear OEP_CONSTANT_ADDRESS_OF from flags before recursing on second or
	later operands of the references, or even first operand for
	INDIRECT_REF, TARGET_MEM_REF or MEM_REF.

	* gcc.c-torture/compile/pr56448.c: New test.

From-SVN: r196278

	PR tree-optimization/56443
	* tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): For
	overaligned types, pass TYPE_UNSIGNED (scalar_type) as second argument
	to type_for_mode langhook.

	* gcc.dg/torture/pr56443.c: New test.

From-SVN: r196277

	* configure.ac: Check for __cxa_thread_atexit_impl.
	* libsupc++/atexit_thread.cc (__cxa_thread_atexit): Just forward
	to it if available.
	* config.h.in, configure: Regenerate.

From-SVN: r196276

	PR c++/56377
	* pt.c (fn_type_unification): Wait to call push_tinst_level until
	we know what args we're looking at.

From-SVN: r196275