* config/linux/wait.h (do_spin): New inline, largely copied
	from do_wait, just don't do futex_wait here, instead return true if
	it should be done.
	(do_wait): Implement using do_spin.
	* config/linux/mutex.h (gomp_mutex_lock_slow): Add an int argument
	to prototype.
	(gomp_mutex_lock): Use __sync_val_compare_and_swap instead of
	__sync_bool_compare_and_swap, pass the oldval to
	gomp_mutex_lock_slow.
	* config/linux/mutex.c (gomp_mutex_lock_slow): Add oldval argument.
	If all mutex contenders are just spinning and not sleeping, don't
	change state to 2 unnecessarily.  Optimize the loop when state has
	already become 2 to use just one atomic operation per loop instead
	of two.
	* config/linux/ia64/mutex.h (gomp_mutex_lock_slow): Add an int argument
	to prototype.
	(gomp_mutex_lock): Use __sync_val_compare_and_swap instead of
	__sync_bool_compare_and_swap, pass the oldval to
	gomp_mutex_lock_slow.

From-SVN: r176326

re PR target/49723 (gcc.c-torture/compile/pr46934.c: ICE in do_SUBST, at combine.c:707 at -O1 and above)

	PR target/49723
	* config/pa/pa.md (casesi): Use gen_int_mode instead of GEN_INT.

From-SVN: r176319

	PR target/48220
	* doc/md.texi (Standard Names): Document window_save.
	* cfgexpand.c (expand_debug_parm_decl): New function extracted from
	expand_debug_expr and expand_debug_source_expr.  If the target has
	a window_save instruction, adjust the ENTRY_VALUE_EXP.
	(expand_debug_expr) <SSA_NAME>: Call expand_debug_parm_decl if the
	SSA_NAME_VAR is a parameter.
	(expand_debug_source_expr) <PARM_DECL>: Call expand_debug_parm_decl.
	* var-tracking.c (parm_reg_t): New type and associated vector type.
	(windowed_parm_regs): New variable.
	(adjust_insn): If the target has a window_save instruction and this
	is the instruction, make its effect on parameter registers explicit.
	(next_non_note_insn_var_location): New function.
	(emit_notes_in_bb): Use it instead of NEXT_INSN throughout.
	(vt_add_function_parameter): If the target has a window_save insn,
	adjust the incoming RTL and record that in windowed_parm_regs.
	(vt_finalize): Free windowed_parm_regs.

From-SVN: r176318

From-SVN: r176317

	Revert
	2003-07-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
	PR rtl-optimization/11320
	* sched-int.h (struct deps) [reg_conditional_sets]: New field.
	(struct sched_info) [compute_jump_reg_dependencies]: New prototype.
	* sched-deps.c (sched_analyze_insn) [JUMP_INSN]: Update call to
	current_sched_info->compute_jump_reg_dependencies. Record which
	registers are used and which registers are set by the jump.
	Clear deps->reg_conditional_sets after a barrier.
	Set deps->reg_conditional_sets if the insn is a COND_EXEC.
	Clear deps->reg_conditional_sets if the insn is not a COND_EXEC.
	(init_deps): Initialize reg_conditional_sets.
	(free_deps): Clear reg_conditional_sets.
	* sched-ebb.c (compute_jump_reg_dependencies): New prototype.
	Mark registers live on entry of the fallthrough block and conditionally
	set as set by the jump. Mark registers live on entry of non-fallthrough
	blocks as used by the jump.
	* sched-rgn.c (compute_jump_reg_dependencies): New prototype.
	Mark new parameters as unused.

From-SVN: r176315

	PR testsuite/49757
	* gcc/testsuite/gcc.target/tic6x/builtins/c6x-builtins.exp: Return if
	not testing tic6x-*-*.

From-SVN: r176313

From-SVN: r176312

	* gcc.target/tic6x/weak-call.c: New test.
	* gcc.target/tic6x/fpcmp.c: New test.
	* gcc.target/tic6x/fpdiv.c: New test.
	* gcc.target/tic6x/rotdi16-scan.c: New test.
	* gcc.target/tic6x/ffssi.c: New test.
	* gcc.target/tic6x/fpdiv-lib.c: New test.
	* gcc.target/tic6x/cold-lc.c: New test.
	* gcc.target/tic6x/longcalls.c: New test.
	* gcc.target/tic6x/abi-align-1.c: New test.
	* gcc.target/tic6x/fpcmp-finite.c: New test.
	* gcc.target/tic6x/rotdi16.c: New test.
	* gcc.target/tic6x/bswapl.c: New test.
	* gcc.target/tic6x/ffsdi.c: New test.
	* gcc.target/tic6x/tic6x.exp: New file.
	* gcc/testsuite/gcc.target/tic6x/builtins/arith24.c: New test.
	* gcc/testsuite/gcc.target/tic6x/builtins/smpy.c: New test.
	* gcc/testsuite/gcc.target/tic6x/builtins/smpylh.c: New test.
	* gcc/testsuite/gcc.target/tic6x/builtins/smpyh.c: New test.
	* gcc/testsuite/gcc.target/tic6x/builtins/sarith1.c: New test.
	* gcc/testsuite/gcc.target/tic6x/builtins/extclr.c: New test
	* gcc/testsuite/gcc.target/tic6x/builtins/c6x-builtins.exp: New file.
	* gcc.target/tic6x/builtin-math-7.c: New test, adapted from gcc.dg.
	* lib/target-supports.exp (chck_profiling_available): Not on tic6x.
	(check_effective_target_ti_c67x, check_effective_target_ti_c64xp):
	New functions.
	* gcc.c-torture/execute/20101011-1.c: Add a condition for
	__TMS320C6X__.
	* gcc.dg/20020312-2.c: Likewise.
	* gcc.dg/pr27095.c: Handle tic6x like hppa.
	* gcc.dg/torture/pr37868.c: Skip on tic6x.
	* gcc.dg/torture/builtin-math-7.c: Likewise.

From-SVN: r176310

gcc/
	* doc/invoke.texi (C6X Options): New section.
	* doc/md.texi (TI C6X family): New section.
	* config.gcc: Handle tic6x, in particular tic6x-*-elf and
	tic6x-*-uclinux.
	* longlong.h (add_ssaaaa, __umulsidi3, umul_ppmm,
	count_leading_zeros, count_trailing_zeros, UMUL_TIME, UDIV_TIME):
	Provide C6X definitions.
	* config/c6x/c6x.md: New file.
	* config/c6x/constraints.md: New file.
	* config/c6x/predicates.md: New file.
	* config/c6x/c6x-sched.md.in: New file.
	* config/c6x/c6x-sched.md: New file.
	* config/c6x/gensched.sh: New file.
	* config/c6x/c6x-mult.md.in: New file.
	* config/c6x/genmult.sh: New file.
	* config/c6x/c6x-mult.md: New file.
	* config/c6x/sync.md: New file.
	* config/c6x/c6x-protos.h: New file.
	* config/c6x/sfp-machine.h: New file.
	* config/c6x/c6x.c: New file.
	* config/c6x/c6x.h: New file.
	* config/c6x/crti.s: New file.
	* config/c6x/crtn.s: New file.
	* config/c6x/lib1funcs.asm: New file.
	* config/c6x/c6x-modes.def: New file.
	* config/c6x/genopt.sh: New file.
	* config/c6x/c6x.opt: New file.
	* config/c6x/c6x-tables.opt: New file.
	* config/c6x/c6x-opts.h: New file.
	* config/c6x/c6x-isas.def: New file.
	* config/c6x/elf.h: New file.
	* config/c6x/elf-common.h: New file.
	* config/c6x/uclinux-elf.h: New file.
	* config/c6x/t-c6x: New file.
	* config/c6x/t-c6x-elf: New file.
	* config/c6x/t-c6x-uclinux: New file.
	* config/c6x/t-c6x-softfp: New file.
	* config/c6x/gtd.c: New file.
	* config/c6x/gtf.c: New file.
	* config/c6x/ltd.c: New file.
	* config/c6x/ltf.c: New file.
	* config/c6x/ged.c: New file.
	* config/c6x/gef.c: New file.
	* config/c6x/led.c: New file.
	* config/c6x/lef.c: New file.
	* config/c6x/eqd.c: New file.
	* config/c6x/eqf.c: New file.
	* config/c6x/libgcc-c6xeabi.ver: New file.

contrib/
	* gcc_update: Add C6X generated files.
	* contrib/config-list.mk: Add c6x-elf and c6x-uclinux.

libgcc/
	* config.host: Handle tic6x-*-*.
	* config/c6x/c6x-abi.h: New file.

From-SVN: r176308

From-SVN: r176307

re PR ada/48711 (failure to bootstrap or build ada for mingw (value not in range of type "Interfaces.C.unsigned" in g-socthi.adb))

	PR ada/48711
	* g-socthi-mingw.adb (Fill): Fix formatting.

From-SVN: r176305

From-SVN: r176301

re PR ada/46350 (s-taprop.adb:891:40: warning: redundant conversion, expression is of type "Interrupt_ID")

	PR ada/46350
	* s-taprop-hpux-dce.adb (Abort_Task): Remove unnecessary cast.

From-SVN: r176296

re PR tree-optimization/49309 (ICE with -fmudflap: verify_stmts failed: type mismatch in pointer plus expression)

2011-07-14  Andrew Pinski  <pinskia@gmail.com>

	PR tree-opt/49309
	* tree-mudflap.c (mf_xform_derefs_1 <case MEM_REF>):
	Use fold_build2_loc instead of build2.
	Use the correct type for the new tree.

2011-07-14  Andrew Pinski  <pinskia@gmail.com>

	PR tree-opt/49309
	* g++.dg/torture/pr49309.C: New testcase.

From-SVN: r176281

	PR rtl-optimization/11320
	* config/ia64/ia64.md (load_symptr_low): Show a MEM.
	* config/ia64/ia64.c (ia64_expand_load_address): Generate it.

From-SVN: r176280

From-SVN: r176279

From-SVN: r176278

	
	PR target/49487
	* config/avr/avr.md (rotl<mode>3): Generate SCRATCH instead
	of REG.
	(*rotw<mode>): Use const_int_operand for operand2.
	Use match_scatch for operand3.
	(*rotb<mode>): Ditto
	* config/avr/avr.c (avr_rotate_bytes): Treat SCRATCH.

From-SVN: r176276

re PR tree-optimization/49651 (nested lambdas and -O3 produced incorrect integer variable increments)

2011-07-14  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/49651
	* tree-ssa-structalias.c (get_constraint_for_1): Properly
	handle dereferences with subvariables.

	* gcc.dg/torture/pr49651.c: New testcase.

From-SVN: r176274

2011-07-14  Richard Guenther  <rguenther@suse.de>

	* gimple-fold.c (fold_gimple_assign): Remove operand swapping.
	(fold_stmt_1): Do it here directly on gimple and as a first thing.

From-SVN: r176273

2011-07-14  Richard Guenther  <rguenther@suse.de>

	* fold-const.c (fold_binary_loc): Convert the !bool_var result,
	not bool_var when folding bool_var != 1 or bool_var == 0.

From-SVN: r176272

	* haifa-sched.c (schedule_insns): Remove outdated comment.
	(schedule_block): When computing a known value for TODO_SPEC,
	just set it rather than using logical operations.
	(try_ready): Likewise.  Use a local variable rather than a
	pointer to TODO_SPEC.  Reorder an if statement to move the
	easy case to the then block.
	* sched-deps.c (dep_spec_p): New static function.
	(update_dep): Use it to decide whether to call
	change_spec_dep_to_hard.
	(get_back_and_forw_lists): Use it.
	(sd_resolve_dep): Likewise.
	(init_dep): If !USE_DEPS_LIST, use zero to initialize status.
	(haifa_note_mem_dep): Likewise.
	(check_dep): Likewise.
	(sd_add_dep): Also clear SPECULATIVE bits if not DO_SPECULATION.
	(sched_free_deps): Free in two passes.

From-SVN: r176271

gcc/
	PR middle-end/49736
	* expr.c (all_zeros_p): Undo bogus part of last change.

From-SVN: r176270

2011-07-14  Matthias Klose <doko@ubuntu.com>

        * doc/extend.texi (optimize attribute): Fix (another) typo.

From-SVN: r176269

2011-07-14  Matthias Klose <doko@ubuntu.com>

        * doc/extend.texi (optimize attribute): Fix typo.

From-SVN: r176268

2011-07-14  Richard Guenther  <rguenther@suse.de>

	* gimplify.c (gimplify_expr): Only do required conversions.

From-SVN: r176267

re PR ada/48711 (failure to bootstrap or build ada for mingw (value not in range of type "Interfaces.C.unsigned" in g-socthi.adb))

	PR ada/48711
	* g-socthi-mingw.adb (Fill): Guard against invalid MSG_WAITALL.

From-SVN: r176265

gcc/
	PR target/43746
	* config/avr/elf.h (TARGET_ASM_SELECT_SECTION): Remove,
	i.e. use default_elf_select_section.
	(TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Remove.
	(READONLY_DATA_SECTION_ASM_OP): Remove.
	(TARGET_ASM_NAMED_SECTION): Move from here...
	* config/avr/avr.c: ...to here.
	(avr_asm_init_sections): Set unnamed callback of
	readonly_data_section.
	(avr_asm_named_section): Make static.
	
testsuite/
	PR target/43746
	* gcc.dg/array-quals-1.c: Don't xfail on AVR.

From-SVN: r176262

2011-07-13  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	PR bootstrap/49739
	* config.gcc (extra_parts): Add crtprec32.o crtprec64.o crtp
	rec80.o crtfastmath.o for Linux/x86.

From-SVN: r176261

	
	* plugin-api.h
	(ld_plugin_section): New struct.
	(ld_plugin_get_section_count): New typedef.
	(ld_plugin_get_section_type): New typedef.
	(ld_plugin_get_section_name): New typedef.
	(ld_plugin_get_section_contents): New typedef.
	(ld_plugin_update_section_order): New typedef.
	(ld_plugin_allow_section_ordering): New typedef.
	(LDPT_GET_SECTION_COUNT): New enum value.
	(LDPT_GET_SECTION_TYPE): New enum value.
	(LDPT_GET_SECTION_NAME): New enum value.
	(LDPT_GET_SECTION_CONTENTS): New enum value.
	(LDPT_UPDATE_SECTION_ORDER): New enum value.
	(LDPT_ALLOW_SECTION_ORDERING): New enum value.
	(tv_get_section_count): New struct members.
	(tv_get_section_type): New struct members.
	(tv_get_section_name): New struct members.
	(tv_get_section_contents): New struct members.
	(tv_update_section_order): New struct members.
	(tv_allow_section_ordering): New struct members.

From-SVN: r176260

From-SVN: r176259

	* haifa-sched.c: Include "hashtab.h"
	(sched_no_dce): New global variable.
	(INSN_EXACT_TICK, INSN_TICK_ESTIMATE, FEEDS_BACKTRACK_INSN,
	SHADOW_P): New macros.
	(last_clock_var, cycle_issued_insns): Move declarations.
	(must_backtrack): New static variable.
	(struct delay_pair): New structure.
	(delay_htab, delay_htab_i2): New static variables.
	(delay_hash_i1, delay_hash_i2, delay_i1_eq, delay_i2_eq,
	record_delay_slot_pair, pair_delay, add_delay_dependencies): New
	functions.
	(dep_cost_1): If delay pairs exist, try to look up the insns and
	use the correct pair delay if we find them.
	(rank-for_schedule): Tweak priority for insns that must be scheduled
	soon to avoid backtracking.
	(queue_insn): Detect conditions which force backtracking.
	(ready_add): Likewise.
	(struct sched_block_state): Add member shadows_only_p.
	(struct haifa_save_data): New structure.
	(backtrack_queue): New static variable.
	(mark_backtrack_feeds, copy_insn_list, save_backtrack_point,
	unschedule_insns_until, restore_last_backtrack_point,
	free_topmost_backtrack_point, free_backtrack_queue,
	estimate_insn_tick, estimate_shadow_tick): New functions.
	(prune_ready_list): New arg shadows_only_p.  All callers changed.
	If true, remove everything that isn't SHADOW_P.  Look up delay
	pairs and estimate ticks to avoid scheduling the first insn too
	early.
	(verify_shadows): New function.
	(schedule_block): Add machinery to enable backtracking.
	(sched_init): Take sched_no_dce into account when setting
	DF_LR_RUN_DCE.
	(free_delay_pairs): New function.
	(init_h_i_d): Initialize INSN_EXACT_TICK.
	* Makefile.in (haifa-sched.o): Add $(HASHTAB_H).
	* sched-deps.c (sd_unresolve_dep): New function.
	* sched-int.h (struct haifa_sched_info): New fields save_state
	and restore_state.
	(struct _haifa_insn_data): New fields exact_tick, tick_estimate,
	feeds_backtrack_insn and shadow_p.
	(DO_BACKTRACKING): New value in enum SCHED_FLAGS.
	(sched_no_dce): Declare variable.
	(record_delay_slot_pair, free_delay_pairs, add_delay_dependencies,
	sd_unresolve_dep): Declare functions.
	* modulo-sched.c (sms_sched_info): Clear the two new fields.
	* sched-rgn.c (rgn_const_sched_info): Likewise.
	* sel-sched-ir.c (sched_sel_haifa_sched_info): Likewise.
	* sched-ebb.c (save_ebb_state, restore_ebb_state): New functions.
	(ebb_sched_info): Add them for the two new fields.
	(add_deps_for_risky_insns): Call add_delay_dependencies.

From-SVN: r176255

From-SVN: r176253

From-SVN: r176252

	* gcc-interface/utils.c (build_vms_descriptor32): Skip the 32-bit
	range comparison if Pmode is SImode.

From-SVN: r176251

Also test -std=c++0x mode with 'make check-c++' at top level
	* Makefile.in (check-gcc-c++0x): New.
	(check-c++): Depend on it.
gcc/
	* Makefile.in ($(lang_checks_parallelized)): Allow --tool_opts.
gcc/cp/
	* Make-lang.in (check-c++0x): New.
gcc/testsuite/
	* lib/g++.exp (${tool}_option_help, ${tool}_option_proc): Remove.
	* lib/lto.exp (lto_prune_warns): Prune warning about -std=c++0x
	when compiling C files.

From-SVN: r176250

	* config/spu/spu.c (spu_init_libfuncs): Install __clrsbdi2.
	* config/spu/spu.md ("clrsb<mode>2"): New expander.

From-SVN: r176249

	gcc/
	* acinclude.m4 (gcc_GAS_CHECK_FEATURE): Use AS_ECHO instead of echo.
	* configure: Regenerate.

From-SVN: r176248

	* config/spu/spu.c (TARGET_ASM_FILE_START): Do not define.
	(asm_file_start): Remove.
	(spu_machine_dependent_reorg): Call compute_bb_for_insn and
	free_bb_for_insn around code that modifies insns before
	restarting df analysis.

From-SVN: r176247

2011-07-13  Janne Blomqvist  <jb@gcc.gnu.org>

	PR libfortran/49296
	* io/list_read.c (read_logical): Don't error out if a valid value
	is followed by EOF instead of a normal separator.
	(read_integer): Likewise.

testsuite:

2011-07-13  Janne Blomqvist  <jb@gcc.gnu.org>

	PR libfortran/49296
	* gfortran.dg/read_list_eof_1.f90: Add tests for integer, real,
	and logical reads.

From-SVN: r176245