* cgraphunit.c (ipa_passes): Remove unrechable nodes.
	* lto-streamer-out.c (produce_symtab): Skip unused extern declarations.
	* ipa.c (cgraph_remove_unreachable_nodes): Do not assume that external
	functions are reachable when address is taken.
	* ipa-inline-analysis.c (reset_inline_edge_summary): New

	* gcc.dg/ipa/ctor-empty-1.c: Update dump file.

From-SVN: r179429

From-SVN: r179428

	* ipa-inline-analysis.c (reset_inline_edge_summary): New function.
	(reset_inline_summary): New function.
	(compute_inline_parameters, inline_node_removal_hook,
	inline_edge_removal_hook): Use it.
	(inline_free_summary): Reset holders correctly.
	(inline_generate_summary): Free summary before computing it.

From-SVN: r179427

2011-10-02  Paolo Carlini  <paolo.carlini@oracle.com>

	PR preprocessor/36819
	* incpath.c (merge_include_chains): Call free_path on
	heads[QUOTE] and tails[QUOTE].

From-SVN: r179426

From-SVN: r179425

	PR lto/47247
	* lto-plugin.c (get_symbols_v2): New variable.
	(write_resolution): Use V2 API when available.
	(onload): Handle LDPT_GET_SYMBOLS_V2.

	* lto-symtab.c (lto_symtab_resolve_symbols): Do not resolve
	when resolution is already availbale from plugin.
	(lto_symtab_merge_decls_1): Handle LDPR_PREVAILING_DEF_IRONLY_EXP.
	* cgraph.c (ld_plugin_symbol_resolution): Add prevailing_def_ironly_exp.
	* lto-cgraph.c (LDPR_NUM_KNOWN): Update.
	* ipa.c (varpool_externally_visible_p): IRONLY variables are never
	externally visible.
	* varasm.c (resolution_to_local_definition_p): Add
	LDPR_PREVAILING_DEF_IRONLY_EXP.
	(resolution_local_p): Likewise.

	* common.c (lto_resolution_str): Add new resolution.
	* common.h (lto_resolution_str): Likewise.

From-SVN: r179424

gcc/

	* config/sparc/sparc.opt (VIS3): New option.
	* doc/invoke.texi: Document it.
	* config/sparc/sparc.h: Force TARGET_VIS3 to zero if assembler is
	not capable of such instructions.
	* config/sparc/sparc-c.c (sparc_target_macros): Define __VIS__
	to 0x300 when TARGET_VIS3.
	* config/sparc/sparc-modes.def: Create 16-byte vector modes.
	* config/sparc/sparc.md (UNSPEC_CMASK8, UNSPEC_CMASK16, UNSPEC_CMASK32,
	UNSPEC_FCHKSM16, UNSPEC_PDISTN, UNSPC_FUCMP): New unspecs.
	(V64N8, VASS): New mode iterators.
	(vis3_shift, vis3_addsub_ss): New code iterators.
	(vbits, vconstr): New mode attributes.
	(vis3_shift_insn, vis3_addsub_ss_insn): New code attributes.
	(cmask8<P:mode>_vis, cmask16<P:mode>_vis, cmask32<P:mode>_vis,
	fchksm16_vis, <vis3_shift_insn><vbits>_vis, pdistn<mode>_vis,
	fmean16_vis, fpadd64_vis, fpsub64_vis, <vis3_addsub_ss_insn><vbits>_vis,
	fucmp<code>8<P:mode>_vis): New VIS 3.0 instruction patterns.
	* config/sparc/sparc.c (sparc_option_override): Set MASK_VIS3 by
	default when targetting capable cpus.  TARGET_VIS3 implies
	TARGET_VIS2 and TARGET_VIS, and clear them when TARGET_FPU is
	disabled.
	(sparc_vis_init_builtins): Emit new VIS 3.0 builtins.
	(sparc_fold_builtin): Do not eliminate cmask{8,16,32} when result
	is ignored.
	* config/sparc/visintrin.h (__vis_cmask8, __vis_cmask16,
	__vis_cmask32, __vis_fchksm16, __vis_fsll16, __vis_fslas16,
	__vis_fsrl16, __vis_fsra16, __vis_fsll32, __vis_fslas32,
	__vis_fsrl32, __vis_fsra32, __vis_pdistn, __vis_fmean16,
	__vis_fpadd64, __vis_fpsub64, __vis_fpadds16, __vis_fpadds16s,
	__vis_fpsubs16, __vis_fpsubs16s, __vis_fpadds32, __vis_fpadds32s,
	__vis_fpsubs32, __vis_fpsubs32s, __vis_fucmple8, __vis_fucmpne8,
	__vis_fucmpgt8, __vis_fucmpeq8): New VIS 3.0 interfaces.
	* doc/extend.texi: Document new VIS 3.0 builtins.

gcc/testsuite/

	* gcc.target/sparc/cmask.c: New test.
	* gcc.target/sparc/fpadds.c: New test.
	* gcc.target/sparc/fshift.c: New test.
	* gcc.target/sparc/fucmp.c: New test.
	* gcc.target/sparc/vis3misc.c: New test.

From-SVN: r179421

From-SVN: r179420

From-SVN: r179415

2011-10-01  François Dumont  <fdumont@gcc.gnu.org>

        * include/debug/vector (vector<>::erase(iterator, iterator): Check
        iterators equality using normal iterators.
        * include/debug/deque (deque<>::erase(iterator, iterator): Likewise.

From-SVN: r179414

2011-10-01  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/50585
	* interface.c (get_expr_storage_size): Check if 'length' component is
	associated.


2011-10-01  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/50585
	* gfortran.dg/assumed_charlen_arg_2.f90: New.

From-SVN: r179413

From-SVN: r179410

	* cp-tree.h (TREE_NEGATED_INT): Remove.
	* semantics.c (finish_unary_op_expr): Don't set it.

From-SVN: r179400

gcc/cp
	PR c++/44473
	* mangle.c (write_type): Handle CV qualifiers for decimal classes.
gcc/testsuite
	PR c++/44473
	* g++.dg/dfp/44473-1.C: New test.
	* g++.dg/dfp/44473-2.C: New test.
	* g++.dg/dfp/mangle-1.C: New test.
	* g++.dg/dfp/mangle-2.C: New test.
	* g++.dg/dfp/mangle-3.C: New test.
	* g++.dg/dfp/mangle-4.C: New test.
	* g++.dg/dfp/mangle-5.C: New test.

From-SVN: r179399

2011-09-30  H.J. Lu  <hongjiu.lu@intel.com>

	* doc/extend.texi: Add missing ','.

From-SVN: r179397

gcc/lto

2011-09-30  H.J. Lu  <hongjiu.lu@intel.com>
	    Andi Kleen  <ak@linux.intel.com>

	PR lto/50568
	* lto.c (lto_splay_tree_delete_id): New.
	(lto_splay_tree_compare_ids): Likewise.
	(lto_splay_tree_lookup): Likewise.
	(lto_splay_tree_id_equal_p): Likewise.
	(lto_splay_tree_insert): Likewise.
	(lto_splay_tree_new): Likewise.
	(lto_resolution_read): Change id to unsigned HOST_WIDE_INT.
	Use lto_splay_tree_id_equal_p and lto_splay_tree_lookup.
	(create_subid_section_table): Use lto_splay_tree_lookup and
	lto_splay_tree_insert.
	(lto_file_read): Use lto_splay_tree_new.

lto-plugin/

2011-09-30  H.J. Lu  <hongjiu.lu@intel.com>
	    Andi Kleen  <ak@linux.intel.com>

	PR lto/50568
	* lto-plugin.c (sym_aux): Change id to unsigned long long.
	(plugin_symtab): Likewise.
	(dump_symtab): Likewise.
	(resolve_conflicts): Likewise.
	(process_symtab): Likewise.

Co-Authored-By: Andi Kleen <ak@linux.intel.com>

From-SVN: r179395

	* common/config/c6x/c6x-common.c (c6x_option_optimization_table):
	Enable -fmodulo-sched at -O2 and above.
	* config/c6x/c6x.md (doloop_end): New expander.
	(mvilc, sploop, spkernel, loop_end): New patterns.
	(loop_end with memory destination splitter): New.
	* config/c6x/c6x.c: Include "hw-doloop.h".
	(enum unitreqs): New.
	(unit_req_table): New typedef.
	(unit_reqs): New static variable.
	(unit_req_factor, get_unit_reqs, count_unit_reqs, merge_unit_reqs,
	res_mii, split_delayed_nonbranch, undo_split_delayed_nonbranch,
	hwloop_pattern_reg, bb_earliest_end_cycle, filter_insns_above,
	hwloop_optimize, hwloop_fail, c6x_hwloops): New static functions.
	(struct c6x_sched_context): New member last_scheduled_iter0.
	(init_sched_state): Initialize it.
	(c6x_variable_issue): Update it.
	(sploop_max_uid_iter0): New static variable.
	(c6x_sched_reorder_1): Be careful about issuing sploop.
	(c6x_reorg): Call c6x_hwlooops before the final schedule.

From-SVN: r179393

	PR target/50566
	* config/avr/avr-protos.h (avr_log_t): New field address_cost.
	* config/avr/avr.c (avr_address_cost): Use it.
	* config/avr/avr-log.c (avr_log_set_avr_log): Initialize it.
	(avr_log_vadump): Unknown %-codes finish printing.

From-SVN: r179391

	PR inline-asm/50571
	* gimple-fold.c (fold_stmt_1) <case GIMPLE_ASM>: If
	input constraints allow mem and not reg, pass true instead of
	false as second argument to maybe_fold_reference.

	* gcc.dg/pr50571.c: New test.

From-SVN: r179389

	PR tree-optimization/46309
	* fold-const.c (make_range, merge_ranges): Remove prototypes.
	(make_range_step): New function.
	(make_range): Use it.
	* tree.h (make_range_step): New prototypes.
	* Makefile.in (tree-ssa-reassoc.o): Depend on $(DIAGNOSTIC_CORE_H).
	* tree-ssa-reassoc.c: Include diagnostic-core.h.
	(struct range_entry): New type.
	(init_range_entry, range_entry_cmp, update_range_test,
	optimize_range_tests): New functions.
	(reassociate_bb): Call optimize_range_tests.

	* gcc.dg/pr46309.c: New test.

From-SVN: r179388

tree-ssa-structalias.c (find_func_aliases_for_builtin_call): Handle BUILT_IN_STRDUP and BUILT_IN_STRNDUP.

	* tree-ssa-structalias.c (find_func_aliases_for_builtin_call): Handle
	BUILT_IN_STRDUP and BUILT_IN_STRNDUP.
	* tree-ssa-alias.c (call_may_clobber_ref_p_1): Likewise.  Fix
	handling of BUILT_IN_STRNCAT and BUILT_IN_STRNCAT_CHK.
	(ref_maybe_used_by_call_p_1): Fix handling of BUILT_IN_STRCAT,
	BUILT_IN_STRNCAT, BUILT_IN_STRCAT_CHK and BUILT_IN_STRNCAT_CHK.

	* gcc.dg/strlenopt-21.c: New test.

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

From-SVN: r179387

Split out LTO's writing of top level asm nodes in preparation of extending
what needs to be written out when top level asm-s get enhanced to accept a
limited set of input operands.

gcc/
2011-09-30  Jan Beulich  <jbeulich@suse.com>

	* lto-cgraph.c (output_cgraph): Remove processing of
	'cgraph_asm_nodes', call lto_output_toplevel_asms() instead.
	(input_cgraph_1): Remove loop calling cgraph_add_asm_node(), call
	lto_input_toplevel_asms() instead.
	* lto-section-in.c (lto_section_name): Add "asm" entry.
	* lto-streamer-in.c (lto_input_toplevel_asms): New.
	* lto-streamer-out.c (lto_output_toplevel_asms): New.
	* lto-streamer.h (LTO_minor_version): Bump.
	(enum lto_section_type): Add LTO_section_asm.
	(struct lto_asm_header): New.
	(lto_input_toplevel_asms, lto_output_toplevel_asms): Declare.
	* tree-streamer.h (streamer_write_string_cst): Declare.
	* tree-streamer-out.c (write_string_cst): Rename to
	streamer_write_string_cst and make global. Handle incoming string
	being NULL.
	(streamer_write_tree_header): Adjust call to renamed function.

From-SVN: r179386

	* sched-ebb.c (schedule_ebb): No longer static.  Remove declaration.
	New arg modulo_scheduling.  All callers changed.  Move note handling
	code here from schedule_ebbs.
	(schedule_ebbs_finish, schedule_ebbs_init): New functions, broken
	out of schedule_ebbs.
	(schedule_ebbs): Call them.  Remove note handling code moved to
	schedule_ebb.
	* sched-int.h (schedule_ebb, schedule_ebbs_init,
	schedule_ebbs_finish): Declare.

From-SVN: r179385

ada:
	Partial reversion of r179358.

	* gcc-interface/Makefile.in (Darwin): Partial reversion of previous
	change to powerpc section.

From-SVN: r179384

	* haifa-sched.c (modulo_ii, modulo_max_states, modulo_n_insns,
	modulo_insns_scheduled, modulo_iter0_max_uid, modulo_backtracks_left,
	modulo_last_stage): New static variables.
	(set_modulo_params, discard_delay_pairs_above): New functions.
	(struct delay_pair): New member stages.
	(htab_i2_traverse, htab_i1_traverse): New static functions.
	(record_delay_slot_pair): New arg stages.  All callers changed.
	Record it.
	(pair_delay): Take stages into account.
	(add_delay_dependencies): Don't do so for stage pairs.
	(struct sched_block_state): New member modulo_epilogue.
	(save_backtrack_point): Don't set SHADOW_P for stage pairs.
	(unschedule_insns_until): Decrease modulo_insns_scheduled.
	Set HARD_DEP without using or.
	(resolve_dependencies): New static function.
	(prune_ready_list): New arg modulo_epilogue_p.  All callers changed.
	If it is true, allow only insns with INSN_EXACT_TICK set.
	(schedule_block): Return bool, always true for normal scheduling,
	true or false depending on modulo scheduling success otherwise.
	Add bookkeeping for modulo scheduling, and call resolve_dependencies
	on everything left over after a modulo schedule.
	(haifa_sched_init): Remove check_cfg call.  Clear modulo_ii.
	* sched-int.h (schedule_block, record_delay_slot_pair): Adjust
	declarations.
	(set_modulo_params, discard_delay_pairs_above): Declare.
	* params.def (PARAM_MAX_MODULO_BACKTRACK_ATTEMPS): New.
	* doc/invoke.texi (--param): Document it.

From-SVN: r179383

2011-09-30  Richard Guenther  <rguenther@suse.de>

	PR middle-end/50574
	* tree-cfg.c (verify_gimple_comparison): Compare component
	mode sizes for vector comparisons.

From-SVN: r179382

From-SVN: r179381

From-SVN: r179380

	* hw-doloop.c (scan_loop): Compute register usage only for non-debug
	insns.

From-SVN: r179379

re PR target/50099 (ICE: internal compiler error: in extract_insn, at recog.c:2113 while building lttng-ust)


Fix PR target/50099

From-SVN: r179378

From-SVN: r179377

gcc/

	* config/sparc/sparc.opt (VIS2): New option.
	* doc/invoke.texi: Document it.
	* config/sparc/sparc.md (UNSPEC_EDGE8N, UNSPEC_EDGE8LN,
	UNSPEC_EDGE16N, UNSPEC_EDGE16LN, UNSPEC_EDGE32N,
	UNSPEC_EDGE32LN, UNSPEC_BSHUFFLE): New unspecs.
	(define_attr type): New insn type 'edgen'.
	(bmask<P:mode>_vis, bshuffle<V64I:mode>_vis, edge8n<P:mode>_vis,
	edge8ln<P:mode>_vis, edge16n<P:mode>_vis, edge16ln<P:mode>_vis,
	edge32n<P:mode>_vis, edge32ln<P:mode>_vis): New insn VIS 2.0
	patterns.
	* niagara.md: Handle edgen.
	* niagara2.md: Likewise.
	* ultra1_2.md: Likewise.
	* ultra3.md: Likewise.
	* config/sparc/sparc-c.c (sparc_target_macros): Define __VIS__
	to 0x200 when TARGET_VIS2.
	* config/sparc/sparc.c (sparc_option_override): Set MASK_VIS2 by
	default when targetting capable cpus.  TARGET_VIS2 implies
	TARGET_VIS, clear and it when TARGET_FPU is disabled.
	(sparc_vis_init_builtins): Emit new VIS 2.0 builtins.
	(sparc_expand_builtin): Fix predicate indexing when builtin returns
	void.
	(sparc_fold_builtin): Do not eliminate bmask when result is ignored.
	* config/sparc/visintrin.h (__vis_bmask, __vis_bshuffledi,
	__vis_bshufflev2si, __vis_bshufflev4hi, __vis_bshufflev8qi,
	__vis_edge8n, __vis_edge8ln, __vis_edge16n, __vis_edge16ln,
	__vis_edge32n, __vis_edge32ln): New VIS 2.0 interfaces.
	* doc/extend.texi: Document new VIS 2.0 builtins.

gcc/testsuite/

	* gcc.target/sparc/bmaskbshuf.c: New test.
	* gcc.target/sparc/edgen.c: New test.

From-SVN: r179376

From-SVN: r179375

	* config/sparc/sparc.md (VIS pixel-compare insn): There is only one
	code iterator used, so just use <code>.  There are two mode iterators
	so explicitly use <GCM:gcm_name>.

From-SVN: r179366

	* config/frv/frvbegin.c: Fix location of unwind-dw2-fde.h header
	file.
	* config/frv/frvend.c: Likewise.
	* config/frv/frv.c (frv_function_prologue): Move misplaced
	CALL_ARG_LOCATION notes back to their proper locations.

Co-Authored-By: Bernd Schmidt <bernds@codesourcery.com>

From-SVN: r179363

2011-09-29  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/bits/hashtable.h (_Hashtable<>::_Hashtable(_Hashtable&&)):
	Remove noexcept from declaration too.

From-SVN: r179360

	PR target/50566
	* config/avr/avr-log.c (avr_log_vadump): Use %b to print bool.
	* config/avr/avr.c (avr_rtx_costs_1): New static function, renamed
	from avr_rtx_costs.
	(avr_legitimate_address_p): Use avr_edump to print log information
	filtered by avr_log.
	(extra_constraint_Q): Ditto.
	(avr_legitimize_address): Ditto.
	(avr_rtx_costs): Ditto.  Rewrite as wrapper for avr_rtx_costs_1.
	(final_prescan_insn): Use avr_log.rtx_costs as filter.

From-SVN: r179359

ada:

	* gcc-interface/Makefile.in (Darwin): Factor LIBGNAT_TARGET_PAIRS
	across the port.

From-SVN: r179358

gcc/
	* config/arm/arm-protos.h (arm_modes_tieable_p): Declare.
	* config/arm/arm.h (MODES_TIEABLE_P): Use it.
	* config/arm/arm.c (arm_modes_tieable_p): New function.  Allow
	NEON vector and structure modes to be tied.

From-SVN: r179355

2011-09-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* graphite-scop-detection.c (make_close_phi_nodes_unique):  New
	forward declaration.
	(remove_duplicate_close_phi): Detect and repair creation of
	duplicate close-phis for a containing loop.

From-SVN: r179351