convert.c (strip_float_extensions): Move ...

[thirdparty/gcc.git] / gcc / ChangeLog

2012-03-07  Richard Guenther  <rguenther@suse.de>

	* convert.c (strip_float_extensions): Move ...
	* tree.c (strip_float_extensions): ... here.

2012-03-07  Georg-Johann Lay  <avr@gjlay.de>

	PR target/52484
	* config/avr/avr.md (xload<mode>_A): Add R22... to register footprint.

2012-03-07  Richard Guenther  <rguenther@suse.de>

	* omp-low.c (extract_omp_for_data): Use signed_type_for.
	(expand_omp_for_generic): Likewise.
	(expand_omp_for_static_nochunk): Likewise.
	(expand_omp_for_static_chunk): Likewise.
	* tree-vect-stmts.c (vect_gen_perm_mask): Use type_for_mode.
	* tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
	* tree-vect-loop-manip.c (vect_gen_niters_for_prolog_loop):
	Use unsigned_type_for.
	(vect_create_cond_for_align_checks): Use signed_type_for.

2012-03-07  Andrey Belevantsev  <abel@ispras.ru>

	PR rtl-optimization/52203
	* sel-sched.c (estimate_insn_cost): New parameter pempty.  Adjust
	all callers to pass NULL except ...
	(reset_sched_cycles_in_current_ebb): ... here, save the value
	in new variable 'empty'.  Increase issue_rate only for
	non-empty insns. 

2012-03-07  Ralf Corsépius  <ralf.corsepius@rtems.org>

	PR target/51417
	* Makefile.in: Let install-gcc-ar depend on installdirs, gcc-ar$(exeext),
	gcc-nm$(exeext), gcc-ranlib$(exeext).
	Don't double canonicalize if cross-compiling.

2012-03-07  Georg-Johann Lay  <avr@gjlay.de>

	PR target/52506
	* gcc/config/avr/avr.c (expand_epilogue): Fix order of restoration
	to: RAMPZ, RAMPY, RAMPX, RAMPD.
	(expand_prologue): Only clear RAMPZ if it has effect on RAM-read.

2012-03-07  Georg-Johann Lay  <avr@gjlay.de>

	PR target/52505
	* config/avr/avr.c (avr_out_xload): Don't read unintentionally
	from RAM.
	* config/avr/avr.md (xload_8): Adjust insn length.

2012-03-07  Georg-Johann Lay  <avr@gjlay.de>

	PR target/52461
	* gcc/config/avr/avr.c (avr_out_lpm): Clear RAMPZ after usage
	if RAMPZ affects reading from RAM.

2012-03-07  Richard Guenther  <rguenther@suse.de>

	PR pch/52518
	PR pch/38987
	* doc/invoke.texi (Precompiled Headers): Remove sentence that
	suggests you can include PCHs from inside another header.

2012-03-07  Richard Sandiford  <rdsandiford@googlemail.com>

	PR middle-end/52515
	* rtl.h (pc_rtx, cc0_rtx, ret_rtx, simple_return_rtx): Add GTY markers.

2012-03-07  Kai Tietz  <ktietz@redhat.com>

	* doc/invoke.texi (fwritable-relocated-rdata): Document
	new Cygwin/MinGW target option.
	* config/i386/winnt.c (i386_pe_unique_section): Ignore
	reloc if flag -fwritable-relocated-rdata is not set.
	(i386_pe_section_type_flags): Likewise.
	* config/i386/cygming.opt (fwritable-relocated-rdata):
	Add new flag variable flag_writable_rel_rdata.

2012-03-07  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-math-opts.c (convert_mult_to_widen): Check actual
	precision against gimple constraints.

2012-03-06  Richard Sandiford  <rdsandiford@googlemail.com>

	PR middle-end/52372
	* rtl.h (pc_rtx, ret_rtx, simple_return_rtx, cc0_rtx): Redefine as
	variables.
	(GR_PC, GR_CC0, GR_RETURN, GR_SIMPLE_RETURN): Delete.
	* emit-rtl.c (pc_rtx, ret_rtx, simple_return_rtx, cc0_rtx): New
	variables.
	(init_emit_regs): Move associated initialization to...
	(init_emit_once): ...here.

2012-03-06  Richard Henderson  <rth@redhat.com>

	* config/m68k/m68k.h (ISA_HAS_TAS): New.
	* config/m68k/sync.md (atomic_test_and_set): Use it.
	(atomic_test_and_set_1): Likewise.

2012-03-06  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/50310
	* config/rs6000/vector.md (vector_uneq<mode>): Add support for
	UNEQ, LTGT, ORDERED, and UNORDERED IEEE vector comparisons.
	(vector_ltgt<mode>): Likewise.
	(vector_ordered<mode>): Likewise.
	(vector_unordered<mode>): Likewise.
	* config/rs6000/rs6000.c (rs6000_emit_vector_compare_inner):
	Likewise.

2012-03-06  Aldy Hernandez  <aldyh@redhat.com>

	* trans-mem.c: New typedef for tm_region_p.
	Define vector types for tm_region_p.
	(tm_region_init): Replace region_worklist to a vector called
	bb_regions.

2012-03-06  Richard Guenther  <rguenther@suse.de>

	* fold-const.c (build_fold_addr_expr_with_type_loc): Fold
	MEM_REF with constant pointer operand.

2012-03-06  Richard Guenther  <rguenther@suse.de>

	PR middle-end/52493
	* tree-ssa-alias.c (ptr_derefs_may_alias_p): Robustify.

2012-03-06  Tristan Gingold  <gingold@adacore.com>

	* config/vms/vms-c.c (vms_pragma_nomember_alignment): Handle
	octaword.
	(external_model_kind): Improve documentation.
	(vms_pragma_extern_model): Handle relaxed_redef.
	(vms_c_register_pragma): Allow expansion for nomember_alignment.

2012-03-06  Georg-Johann Lay  <avr@gjlay.de>

	* doc/invoke.texi (AVR Options): -mmcu=: Document the XMEGA cores.
	Explain RAMPD, RAMPX, RAMPDY, RAMPZ usage by avr-gcc.
	Some more notes on EIND usage and reorder EIND subsection.

2012-03-06  Tristan Gingold  <gingold@adacore.com>

	* config/vms/vms.c (VMS_CRTL_LDBL): Rename from VMS_CRTL_PRNTF.
	* config/vms/vms-crtlmap.map: Rename PRNTF to LDBL.

2012-03-06  Tristan Gingold  <gingold@adacore.com>

	* config/vms/t-vmsnative (version): Define.
	* config/vms/t-vms (STMP_FIXPROTO, STMP_FIXINC, version): Remove.

2012-03-06  Andrey Belevantsev  <abel@ispras.ru>

	PR rtl-optimization/52250
	* sel-sched-ir.c (maybe_tidy_empty_bb): Try harder to find a bb
	to put note list into.  Unconditionally call move_bb_info.
	(move_bb_info): Do not assert the blocks being in the same region,
	just drop the note list if they are not.

2012-03-06  Oleg Endo  <olegendo@gcc.gnu.org>

	PR target/51244
	* config/sh/sh.c (sh_expand_t_scc): Remove SH2A special case
	and use unified expansion logic.
	* config/sh/sh.md (xorsi3_movrt): Rename to movrt.  Move
	closer to the existing movt insn.
	(negc): Rename insn to *negc.  Add new expander.
	(movnegt): Use xor pattern for T bit negation.  Reserve helper
	constant for negc pattern.
	(*movnegt): New insn and splitter.

2012-03-05  Bernd Schmidt  <bernds@codesourcery.com>

	* c-typeck.c (pointer_diff): Check for POINTER_PLUS_EXPR, not
	PLUS_EXPR.

2012-03-05  Richard Henderson  <rth@redhat.com>

	* genemit.c (main): Include "target.h" in insn-emit.c.
	* Makefile.in (insn-emit.o): Depend on TARGET_H.
	* config/sh/sync.md (atomic_test_and_set): Reference
	targetm.atomic_test_and_set_trueval instead of
	TARGET_ATOMIC_TEST_AND_SET_TRUEVAL.

2012-03-05  Joern Rennecke  <joern.rennecke@embecosm.com>

	* config/epiphany/epiphany.c (epiphany_function_value_regno_p):
	Make static.

2012-03-05  Steven Bosscher  <steven@gcc.gnu.org>

	* langhooks.c (add_builtin_type): New function.
	* langhooks.h (add_builtin_type): Export it.
	* config/mep/mep.c (mep_init_builtins): Use it.
	* config/rs6000/rs6000.c (rs6000_init_builtins): Use it.

2012-03-05  Jakub Jelinek  <jakub@redhat.com>

	PR debug/51902
	* tree.h (BLOCK_SAME_RANGE): Define.
	* function.c (block_fragments_nreverse): Clear BLOCK_SAME_RANGE
	if BLOCK_FRAGMENT_CHAIN is non-NULL, but has it cleared.
	Also clear BLOCK_SAME_RANGE if fragment chain's supercontext fragment
	isn't equal to supercontext fragment's fragment chain.
	Adjust BLOCK_SUPERCONTEXT to point to supercontext fragment's
	fragment origin.
	(blocks_nreverse_all): Likewise.
	(reorder_blocks_1): Compute BLOCK_SAME_RANGE bits.  Set
	BLOCK_SUPERCONTEXT to supercontext fragment instead of
	supercontext fragment's fragment origin.
	* dwarf2out.c (add_high_low_attributes): If stmt has the same
	range as its parent (or parents thereof etc.), use the parent's
	DW_AT_ranges value instead of creating a new .debug_ranges range.

2012-03-05  Richard Henderson  <rth@redhat.com>

	PR tree-opt/52242
	Revert: 2011-11-26  Richard Henderson  <rth@redhat.com>
	* omp-low.c (expand_omp_atomic): Assume anything aligned to
	BIGGEST_ALIGNMENT is aligned.

2012-03-05  Richard Henderson  <rth@redhat.com>

	* config/sh/sh.h (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): Move...
	* config/sh/sh.c: ... here.

2012-03-05  Richard Henderson  <rth@redhat.com>

	PR target/52481
	* config/m68k/sync.md (atomic_test_and_set): Use expand_simple_unop
	instead of calling negqi2 directly.

2012-03-05  Aldy Hernandez  <aldyh@redhat.com>

	PR middle-end/52463
	* trans-mem.c (tm_region_init): Use last_basic_block.

2012-03-05  Oleg Endo  <olegendo@gcc.gnu.org>

	* config/sh/sh.h (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New hook.
	* config/sh/sync.md (atomic_test_and_set): New expander.
	(tasb, atomic_test_and_set_soft): New insns.
	* config/sh/sh.opt (menable-tas): New option.
	* doc/invoke.texi (SH Options): Document it.

2012-03-05  Richard Guenther  <rguenther@suse.de>

	* cfgloop.c (verify_loop_structure): Verify dominators before
	using them.
	* graphite-clast-to-gimple.c (graphite_verify): Do not verify
	dominators from here.
	* graphite-scop-detection.c (create_sese_edges): Likewise.
	* loop-doloop.c (doloop_optimize_loops): Likewise.
	* loop-init.c (loop_optimizer_init): Likewise.
	* loop-unroll.c (unroll_and_peel_loops): Likewise.
	* loop-unswitch.c (unswitch_loops): Likewise.
	* tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Likewise.
	* tree-parloops.c (parallelize_loops): Likewise.  Verify
	only when checking is enabled.
	* tree-loop-distribution.c (tree_loop_distribution): Likewise.

2012-03-05  Bernd Schmidt  <bernds@codesourcery.com>

	* genautomata.c (parse_automata_opt): New static function.
	(initiate_automaton_gen): Remove all option handling code.  Remove
	argc argument.  All callers changed.
	(main): Call init_rtx_reader_args_cb with the new function as
	argument.

2012-03-05  Richard Guenther  <rguenther@suse.de>

	* cfgexpand.c (gimple_expand_cfg): Free dominator info.
	* tree-if-conv.c (combine_blocks): Free post-dominator info
	after breaking it.
	* tree-parloops.c (create_parallel_loop): Free and re-compute
	dominator info after breaking it.

2012-03-05  Richard Guenther  <rguenther@suse.de>

	PR middle-end/52353
	* optabs.h (trapv_unoptab_p): New function.
	(trapv_binoptab_p): Likewise.
	* optabs.c (expand_binop): Use emit_libcall_block_1 with
	a proper equiv_may_trap argument.
	(expand_unop): Likewise.
	(emit_libcall_block_1): Take extra argument whether the
	instruction may trap.  Renamed from ...
	(emit_libcall_block): ... this.  New wrapper.

2012-03-05  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/51721
	* tree-vrp.c (register_edge_assert_for_2): If comparing
	lhs of right shift by constant with an integer constant,
	add ASSERT_EXPRs for the rhs1 of the right shift.

	* cfgrtl.c (cfg_layout_merge_blocks): Cleanup.

2012-03-05  Richard Guenther  <rguenther@suse.de>

	* tree.c (integer_zerop): Handle VECTOR_CSTs.
	(integer_onep): Likewise.
	(integer_all_onesp): Likewise.

2012-03-05  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr.md (*umaddqihi4.2): New insn-and-split.

2012-03-04  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.c (pro_epilogue_adjust_stack): Check Pmode
	instead of TARGET_64BIT.

2012-03-04  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.c (ix86_expand_prologue): Check Pmode to set
	adjust_stack_insn.

2012-03-04  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.c (ix86_print_operand_address): Only handle
	zero-extended DImode addresses.

2012-03-04  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.c (ix86_print_operand) <case '+'>: Declare
	taken and cputaken as bool.

2012-03-04  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/constraints.md (Ya): New internal constraint.
	* config/i386/i386.md (zero_extendsidi2): Remove expansion.
	(*zero_extendsidi2_rex64): Add x,x alternative.
	(*zero_extendsidi2): Ditto.  Add o,0 alternative.
	Remove flags reg clobber.  Adjust corresponding splits.
	(zero_extend<mode>si2): Macroize expander from zero_extendhisi2 and
	zero_extendqisi2 expanders using SWI12 mode iterator.
	(zero_extend<mode>si2_and): Macroize insn from
	zero_extendhisi2_and and zero_extendqisi2_and.  Merge corresponding
	splitters.
	(*zero_extend<mode>si2):  Macroize insn from
	*zero_extendhisi2_movzbl and *zero_extendqisi2_movzbl.
	(*zero_extend*2_movzbl_and): Remove insn patterns.
	(zero_extendqihi2_and): Merge corresponding splitter.
	(*zero_extendqihi2): Rename from *zero_extendqihi2_movzbl.
	(*zero_extend*2_movzbl_and): Remove insn patterns.
	(*anddi_1): Split TYPE_IMOVX instructions.
	(*andsi_1): Use Ya for alternative 2.  Split TYPE_IMOVX instructions.
	(*andhi_1): Ditto.
	(and->zext splitter): Add splitter pattern.
	(zero extend with andsi3 splitter): Adjust zero_extend pattern.

2012-03-04  Sandra Loosemore  <sandra@codesourcery.com>

	* doc/invoke.texi (C++ Dialect Options): Minor copy-edits to
	x86-specific text.
	(Debugging Options): Likewise.
	(Optimize Options): Likewise.
	(i386 and x86-64 Options): Discuss -march before -mtune, consistently
	with other architectures.  Use official processor names with correct
	spelling/capitalization.  Fix formatting and grammar issues.
	(i386 and x86-64 Windows Options): Similar cleanup here.

2012-03-03  Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/sh.md (abssi2): Add TARGET_SH1 condition.

2012-03-03  Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/sh.c (sh_dwarf_register_span): Don't apply
	DBX_REGISTER_NUMBER.

2012-03-03  Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/sh.c (shiftcosts): Return MAX_COST when the first
	operand is CONST_INT.  Take COSTS_N_INSNS into account.
	(sh_rtx_costs): Don't apply COSTS_N_INSNS to the return value
	of shiftcosts.

2012-03-02  Richard Henderson  <rth@redhat.com>

	* optabs.c (expand_atomic_test_and_set): Honor
	atomic_test_and_set_trueval even when atomic_test_and_set
	optab is not in use.

2012-03-02  Kaz Kojima  <kkojima@gcc.gnu.org>

	PR target/48596
	PR target/48806
	* config/sh/sh.c (sh_register_move_cost): Increase cost between
	GENERAL_REGS and FP_REGS for SImode.

2012-03-02  Oleg Endo  <olegendo@gcc.gnu.org>

	PR target/49486
	* config/sh/sh.md (negdi2): Add TARGET_SH1 condition.
	(absdi2): New expander.
	(*absdi2, *negabsdi2, negdi_cond): New insns and splits.

2012-03-02  Oleg Endo  <olegendo@gcc.gnu.org>

	* config/sh/sync.md (atomic_exchange<mode>): New expander.
	(atomic_exchange<mode>_soft): New insn.

2012-03-02  Oleg Endo  <olegendo@gcc.gnu.org>

	* config/sh/sync.md: Update copyright notice dates.
	(atomic_compare_and_swap<mode>): Use SImode for return value instead
	of QImode.
	(atomic_compare_and_swap<mode>_soft): Likewise.

2012-03-02  Oleg Endo  <olegendo@gcc.gnu.org>

	PR target/31640
	* config/sh/sh.h (LOOP_ALIGN): Move logic to sh_loop_align.
	* config/sh/sh.c: Update copyright notice dates.
	(sh_loop_align): Add logic from LOOP_ALIGN.  Don't disable loop
	alignment for TARGET_HARD_SH4.
	(sh_option_override): Reduce default function alignment.  Set
	loop alignment to 4 bytes when not optimizing for size.

2012-03-02  Maxim Kuvyrkov  <maxim@codesourcery.com>

	PR middle-end/50335
	* doc/invoke.texi (floop-flatten): Remove.
	* toplev.c (process_options): Remove references to flag_loop_flatten.
	* tree-ssa-loop.c (gate_graphite_transform): Same.
	* common.opt (floop-flatten): Obsolete.
	* graphite-poly.c (apply_poly_transforms): Remove reference to
	flag_loop_flatten.
	* Makefile.in (graphite-flattening.o): Remove.
	* graphite-flattening.c: Remove.

2012-03-02  Uros Bizjak  <ubizjak@gmail.com>

	* compare-elim.c (find_comparisons_in_bb): Eliminate only compares
	having mode compatible with the mode of previous compare.  Substitute
	compare mode of previous compare with the mode, compatible
	with eliminated and previous compare.

2012-03-02  Peter Bergner  <bergner@vnet.ibm.com>

	* config/rs6000/dfp.md (floatdidd2): New define_insn.

2012-03-02  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.c (ix86_cc_modes_compatible): Declare CCZmode
	compatible with CCGOCmode and CCGCmode.

2012-03-02  Peter Bergner  <bergner@vnet.ibm.com>

	* config/rs6000/vsx.md (vsx_set_<mode>): Reorder operands.

2012-03-02  Ulrich Weigand  <ulrich.weigand@linaro.org>

	* config/arm/arm.c (arm_sat_operator_match): New function.
	* config/arm/arm-protos.h (arm_sat_operator_match): Add prototype.
	* config/arm/arm.md ("insn" attribute): Add "sat" value.
	("SAT", "SATrev"): New code iterators.
	("SATlo", "SAThi"): New code iterator attributes.
	("*satsi_<SAT:code>"): New pattern.
	("*satsi_<SAT:code>_shift"): Likewise.
	* config/arm/arm-fixed.md ("arm_ssatsihi_shift"): Add "insn"
	and "shift" attributes.
	("arm_usatsihi"): Add "insn" attribute.
	* config/arm/predicates.md (sat_shift_operator): Allow multiplication
	by powers of two.  Do not allow shift by 32.

2012-03-02  Uros Bizjak  <ubizjak@gmail.com>

	PR target/46716
	* config/i386/i386.c (construct_container): Use gen_reg_or_parallel
	to pass the argument in the register of "natural" mode.

2012-03-02  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/52406
	* tree-data-ref.h: Update documentation about DR_BASE_OBJECT.
	(struct indices): Add unconstrained_base member.
	(struct dr_alias): Remove unused vops member.
	(DR_UNCONSTRAINED_BASE): New define.
	* tree-data-ref.c (dr_analyze_indices): For COMPONENT_REFs
	add indices to allow their disambiguation.  Make DR_BASE_OBJECT
	be an artificial access that covers the whole indexed object,
	or mark it with DR_UNCONSTRAINED_BASE if we cannot do so.  Canonicalize
	plain decl base-objects to their MEM_REF variant.
	(dr_may_alias_p): When the base-object of either data reference
	has unknown size use only points-to information.
	(compute_affine_dependence): Make dumps easier to read and
	more verbose.
	* tree-vect-data-ref.c (vector_alignment_reachable_p): Use
	DR_REF when looking for packed references.
	(vect_supportable_dr_alignment): Likewise.

2012-03-02  Greta Yorsh  <Greta.Yorsh@arm.com>

	* config/arm/arm-ldmstm.ml (write_ldm_commutative_peephole):
	Improve conditions for peepholes of loads followed by commutative
	operators.
	* config/arm/ldmstm.md: Regenerated.

2012-03-02  Richard Guenther  <rguenther@suse.de>

	* BASE-VER: Set to 4.8.0.

2012-03-01  Richard Earnshaw  <rearnsha@arm.com>

	* config.gcc (obsolete): Add all ARM targets using the FPA.
	(with_fpu): Obsolete selection of the FPA or Maverick on ARM.
	* doc/install.texi: Avoid references to obsolete ARM ports.

2012-03-01  Joern Rennecke  <joern.rennecke@embecosm.com>

	* config/epiphany/epiphany.md (movmisalign<mode>): New patterns.

2012-03-01  Jeremy Bennett  <jeremy.bennett@embecosm.com>
	    Joern Rennecke  <joern.rennecke@embecosm.com>

	* doc/extend.texi: Expand and update information on interrupt
	attribute for Epiphany.

2012-03-01  Oleg Endo  <olegendo@gcc.gnu.org>

	* config/sh/sh-protos.h: Update copyright notice dates.
	* config/sh/sh.h: Likewise.
	* config/sh/sh.md: Likewise.
	* config/sh/constraints.md: Likewise.
	* config/sh/predicates.md: Likewise.

2012-03-01  Oleg Endo  <olegendo@gcc.gnu.org>

	* config/sh/sh-protos.h (tertiary_reload_operand): Remove dead function.
	* config/sh/sh.c (tertiary_reload_operand): Likewise.

2012-03-01  Oleg Endo  <olegendo@gcc.gnu.org>

	* config/sh/constraints.md: Fix comment typo.

2012-03-01  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR target/52408
	* config/pa/pa.md (zvdep_imm32): Change type of variable x from int to
	unsigned HOST_WIDE_INT.
	(zvdep_imm64): Likewise.
	(vdepi_ior): Change type of variable x from int to HOST_WIDE_INT.
	(vdepi_and): Likewise.
	Likewise for unamed 64-bit patterns.
	* config/pa/predicates.md (lhs_lshift_cint_operand): Update comment.

2012-03-01  Alexandre Oliva  <aoliva@redhat.com>

	PR debug/52001
	PR rtl-optimization/52417
	* cselib.c (cselib_any_perm_equivs): New variable.
	(cselib_reset_table): Check that it's not set when not
	preserving constants.
	(cselib_add_permanent_equiv): Set it.
	(cselib_have_permanent_equivalences): New.
	(cselib_init, cselib_finish): Reset it.
	* cselib.h (cselib_have_permanent_equivalences): Declare.
	* alias.c (get_addr): Restore earlier behavior when there
	aren't permanent equivalences.

2012-03-01  Steven Bosscher  <steven@gcc.gnu.org>

	* config/mn10300/mn10300-modes.def: Fix copyright notice.
	* config/v850/v850-modes.def: Fix copyright notice.

2012-03-01  Georg-Johann Lay  <avr@gjlay.de>

	* doc/extend.texi (AVR Built-in Functions): Document
	__builtin_avr_flash_segment.

	* config/avr/builtins.def (__builtin_avr_flash_segment): New entry.
	* config/avr/avr.md (flash_segment, flash_segment1): New expanders.
	(*split.flash_segment): New insn-and-split.
	* config/avr/avr.c (avr_init_builtins): Add local variables:
	const_memx_void_node, const_memx_ptr_type_node,
	char_ftype_const_memx_ptr.

2012-03-01  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/52445
	* tree-ssa-phiopt.c (struct name_to_bb): Remove ssa_name field,
	add ssa_name_ver, offset and size fields and change store field
	to bool.
	(name_to_bb_hash, name_to_bb_eq): Adjust for the above changes.
	(add_or_mark_expr): Likewise.  Only consider previous stores
	with the same size and offset.
	(nt_init_block): Only look at gimple_assign_single_p stmts,
	doesn't look at rhs2.

2012-03-01  Richard Guenther  <rguenther@suse.de>

	PR middle-end/52443
	* tree-cfg.c (verify_gimple_assign_unary): Allow any
	conversions from integral types to pointer types.

2012-03-01  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr-c.c (avr_cpu_cpp_builtins): Restore built-in
	defines for __UINT24_MAX__, __INT24_MAX__, __INT24_MIN__
	unintentionally removed in r184616.

2012-03-01  Venkataramanan Kumar  <venkataramanan.kumar@amd.com>

	* doc/invoke.texi: Document AMD bdver2 and remove mentioning
	3DNow from bdver1.

2012-02-29  Jakub Jelinek  <jakub@redhat.com>
	    Uros Bizjak  <ubizjak@gmail.com>

	PR target/52437
	* config/i386/sse.md (vec_set<mode>_0): Swap "*r" and "fF"
	alternatives, add "e" constraint to the new last alternative
	and ! to last 3 alternatives.

2012-02-29  Eric Botcazou  <ebotcazou@adacore.com>

	* dwarf2out.c (modified_type_die): Set DW_AT_GNAT_descriptive_type and
	DW_AT_artificial attributes at the end of the processing.
	(gen_array_type_die): Likewise.
	(gen_enumeration_type_die): Likewise.
	(gen_struct_or_union_type_die): Likewise.
	(add_gnat_descriptive_type_attribute): Do not suppress debug info for
	the parent type.

2012-02-29  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/52419
	* expr.c (expand_assignment): If doing misaligned store that doesn't
	cover all mode bits, perform a RMW cycle.

	PR tree-optimization/52429
	* tree-parloops.c (separate_decls_in_region_debug): Return early
	if var is LABEL_DECL.

2012-02-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR tree-optimization/52424
	* tree-ssa-dom.c (dom_opt_leave_block): Push a marker before
	calling dom_thread_across_edge.

2012-02-29  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr.c: Move definition of TARGET macros to end of file.

2012-02-29  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr-protos.h (avr_output_bld): Remove unused prototype.
	* config/avr/avr.c (avr_output_bld): Remove unused function.
	(avr_out_sbxx_branch): Use "%T" to print bit position.

2012-02-29  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr.md: Untabify.

2012-02-29  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr.md (eqne): New code iterator.
	(*dec-and-branchsi): Use it in text peephole's condition.
	(*dec-and-branchhi): Ditto.
	(*dec-and-branchqi): Ditto.

2012-02-29  Georg-Johann Lay  <avr@gjlay.de>

	PR target/49939
	* config/avr/avr.h (ASM_SPEC): Add -mno-skip-bug if we know that
	the device does not have the skip-bug.

2012-02-29  Oleg Endo  <olegendo@gcc.gnu.org>

	* doc/invoke.texi (-msoft-atomic): Add more detailed description.
	(-mbranch-cost, -mcbranchdi -mcmpeqdi -mfused-madd
	-mpretend-cmove): New.

2012-02-29  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/52397
	* df.h (struct df_d): Adjust comment that hard_regs_live_count
	doesn't count DEBUG_INSN refs.
	* df-scan.c (df_ref_create_structure): Don't set DF_HARD_REG_LIVE
	for DEBUG_INSN refs.

2012-02-28  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

	Partially revert:

	2012-02-20  Richard Guenther  <rguenther@suse.de>
	PR tree-optimization/52298
	* tree-vect-stmts.c (vectorizable_load): Properly use
	STMT_VINFO_DR_STEP instead of DR_STEP when vectorizing
	outer loops.

2012-02-28  Aldy Hernandez  <aldyh@redhat.com>

	PR middle-end/51752
	* gimple.h (gimple_in_transaction): New.
	(gimple_set_in_transaction): New.
	(struct gimple_statement_base): Add in_transaction field.
	* tree-ssa-loop-im.c: (movement_possibility): Restrict movement of
	transaction loads.
	(tree_ssa_lim_initialize): Compute transaction bits.
	* tree.h (compute_transaction_bits): Protoize.
	* trans-mem.c (tm_region_init): Use the heap to store BB
	auxilliary data.
	(compute_transaction_bits): New.

2012-02-28  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	* gcc.c (display_help): Document --help=common and sort entries
	alphabetically.

2012-02-28  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	* doc/install.texi: Document check-$LANG specific shortcuts

2012-02-28  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

	PR target/51534
	* config/arm/arm.c (neon_builtin_data): Add entries for vcgeu
	and vcgtu.
	* config/arm/arm_neon.h: Regenerate.
	* config/arm/neon.md (unspec): Add UNSPEC_VCGEU, and UNSPEC_VCGTU.
	(neon_vcgeu): New insn.
	(neon_vcgtu): Likewise.
	* config/arm/neon.ml (s_8_32, u_8_32): New lists.
	(ops): Unsigned comparison intrinsics call a different builtin.

2012-02-28  Richard Guenther  <rguenther@suse.de>

	PR target/52407
	* config/i386/i386.c (ix86_expand_vector_set): Fix element
	ordering for the VEC_CONCAT for two element vectors for
	V2SFmode, V2SImode and V2DImode.

2012-02-28  Richard Earnshaw  <rearnsha@arm.com>

	PR target/49448
	* config.gcc (arm*-*-linux*): Use an unambiguous pattern for
	detecting big-endian triplets.

2012-02-28  Richard Earnshaw  <rearnsha@arm.com>

	* arm.c (aapcs_vfp_is_call_or_return_candidate): Only use the machine
	mode if there is no type information available.

2012-02-28  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR tree-optimization/53207
	* doc/invoke.texi: Document as experimental and relying on graphite.

2012-02-28  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr-devices.c (avr_mcu_type): Adjust NULL part
	of initializer to changes from r184614.

2012-02-28  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/52395
	* tree-sra.c (build_ref_for_offset): Also look at the base
	TYPE_ALIGN when figuring out the alignment of the replacement.

2012-02-28  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/52402
	* ipa-prop.c (ipa_modify_call_arguments): Properly use
	mis-aligned types when creating the accesses at the call site.

2012-02-28  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/builtins.def: New file.
	* config/avr/t-avr (avr.o, avr-c.o): Depend on it.
	* config/avr/avr.c (enum avr_builtin_id): Use it.
	(avr_init_builtins): Use it. And use avr_bdesc.
	(bdesc_1arg): Remove.
	(bdesc_2arg): Remove.
	(bdesc_3arg): Remove.
	(struct avr_builtin_description): Add field n_args.
	(avr_bdesc): New static variable using builtins.def.
	(avr_expand_builtin): Use it.
	Don't call avr_expand_delay_cycles if op0 is not CONST_INT.
	(avr_fold_builtin): Fold AVR_BUILTIN_SWAP.
	Don't fold AVR_BUILTIN_INSERT_BITS if arg0 is not INTEGER_CST.

2012-02-28  Georg-Johann Lay  <avr@gjlay.de>

	PR target/52148
	* config/avr/avr.md (movmem_<mode>): Replace match_operand that
	match only one single hard register with respective hard reg rtx.
	(movmemx_<mode>): Ditto.
	* config/avr/avr.c (avr_emit_movmemhi): Adapt expanding to new
	insn anatomy of movmem[x]_<mode>.
	(avr_out_movmem): Same for printing assembler and operand usage.

2012-02-28  Georg-Johann Lay  <avr@gjlay.de>

	PR target/49868
	PR target/52261
	* doc/extend.texi (AVR Named Address Spaces): No more try to fix
	address spaces located outside of device flash.

	* config/avr/avr.h (base_arch_s): Remove field n_segments.
	(mcu_type_s): Add field n_flash.
	* config/avr/avr-devices.c (avr_arch_types): Remove .n_segments.
	Set .have_elpm and .have_elpmx to 1 for avrxmega4 and avrxmega5.
	(AVR_MCU): Add N_FLASH argument.
	* config/avr/avr-mcus.def (AVR_MCU): Add initializer for .n_flash.
	* config/avr/avr-c.c (avr_cpu_cpp_builtins): Only define built-in
	macro __FLASH<n> if that address space makes sense for the device.
	* config/avr/avr.c (avr_out_lpm): Don't try to fix address spaces
	outside of target flash.
	(avr_asm_named_section): Ditto.
	(avr_asm_select_section): Ditto.
	(avr_addr_space_convert): Ditto.
	(avr_emit_movmemhi): Ditto.
	(avr_nonconst_pointer_addrspace, avr_pgm_check_var_decl): Error if
	address space is outside of device flash.
	(avr_insert_attributes): Ditto.
	(avr_xload_libgcc_p): Use avr_current_device->n_flash instead of
	avr_current_arch->n_segments.

2012-02-27  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/52352
	* config/i386/i386.md (*movabs<mode>_1): Enable only for TARGET_LP64.
	(*movabs<mode>_2): Likewise.

2012-02-27  Jakub Jelinek  <jakub@redhat.com>

	PR target/52375
	* config/arm/neon.md (vashr<mode>3, vlshr<mode>3): Use
	s_register_operand in the test instead of REG_P.  Don't call
	gen_reg_rtx if it won't be used.

	PR tree-optimization/52376
	* ipa-split.c (split_function): Ignore CLOBBER stmts.

2012-02-27  Stuart Henderson  <shenders@gcc.gnu.org>

	* ifcvt.c (noce_get_condition): Check condition variable is not
	small_register_classes_for_mode_p before accepting.

2012-02-27  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.md (*movabs<mode>_1): Fix operand 1 constraints.

2012-02-27  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

	Revert:
	2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
	* config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
	tuning parameters.
	* config/arm/arm.c (arm_cortex_a15_tune): New static variable.

2012-02-27  Oleg Endo  <olegendo@gcc.gnu.org>

	* config/sh/sh.h: Delete dead GO_IF_LEGITIMATE_INDEX macro.

2012-02-26  Oleg Endo  <olegendo@gcc.gnu.org>

	* config/sh/predicates.md: Remove blank lines.
	* config/sh/sh.c: Fix typos in comments.
	* config/sh/constraints.md: Likewise.
	* config/sh/sh.md: Remove blank lines.
	Fix typos in comments.  Use ;; as comment characters.

2012-02-26  Walter Lee  <walt@tilera.com>

	* config/tilegx/tilegx.c (match_pcrel_step2): Fix instruction pattern.
	(replace_mov_pcrel_step2): Ditto.

2012-02-25  Alexandre Oliva  <aoliva@redhat.com>

	PR debug/52001
	* alias.c (refs_newer_value_cb, refs_newer_value_p): New.
	(get_addr): Walk canonical value's locs.  Avoid returning VALUEs
	and locs that reference values newer than the non-canonical value
	at hand.  Return the canonical value as a worst case.
	(memrefs_conflict_p): Walk canonical value's locs.

	PR debug/52001
	* cselib.c (preserve_only_constants): Rename to...
	(preserve_constants_and_equivs): ... this.  Split out...
	(invariant_or_equiv_p): ... this.  Preserve plus expressions
	of other preserved expressions too.
	(cselib_reset_table): Adjust.
	* var-tracking.c (reverse_op): Use canonical value to build
	reverse operation.

2012-02-23  Kai Tietz  <ktietz@redhat.com>

	* config/i386/i386.c (ix86_delegitimize_address): Handle
	UNSPEC_PCREL plus displacement.

2012-02-24  Georg-Johann Lay  <avr@gjlay.de>

	PR target/52261
	* config/avr/avr.c (avr_out_movhi_mr_r_xmega): Use base
	to test for unusedness in st X addressing.

2012-02-24  Richard Guenther  <rguenther@suse.de>

	PR middle-end/52361
	* gimple.c (walk_gimple_op): Use predicates with less redundant tests.
	(is_gimple_reg_type): Move inline ...
	* gimple.h (is_gimple_reg_type): ... here.

2012-02-24  Richard Guenther  <rguenther@suse.de>

	PR middle-end/52361
	* passes.c (execute_function_todo): When verifying SSA form
	verify gimple form first.
	* tree-ssa.c (verify_ssa): Do not verify gimple form here.

2012-02-24  Richard Guenther  <rguenther@suse.de>

	PR middle-end/52355
	* fold-const.c (fold_addr_of_array_ref_difference): New function.
	(fold_binary_loc): Use it to extend the existing &a[i] - &a[j] folding.

2012-02-13  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	* tree-if-conv (predicate_scalar_phi): Commentary typo fix.

2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	* tree-phinodes.c (make_phi_node): Mark static.
	* tree-flow.h (make_phi_node): Remove extern decl.
	* doc/gimple.texi (make_phi_node): Remove documentation.

2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	* tree-into-ssa (update_ssa): Avoid trailing whitespace in dump_file.
	* tree-ssa-sccvn.c (print_scc): Ditto.

2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	* doc/passes.texi (Full redundancy elimination): Fix typo.

2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	* doc/invoke.texi (-fdse, -fdce): Remove duplicate entries.

2012-02-23  Eric Botcazou  <ebotcazou@adacore.com>

	PR bootstrap/52287
	* haifa-sched.c (rank_for_schedule): Stabilize sort for debug insns.

2012-02-23  Uros Bizjak  <ubizjak@gmail.com>

	PR c/52290
	* c-decl.c (start_function): Exit early if decl1 is not FUNTION_DECL.

2012-02-23  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr.md (code_stdname): Add ior, xor.
	(xior): New code iterator.
	(*<code_stdname><mode>qi.byte0): Use xior instead of ior.
	(*<code_stdname><mode>qi.byte1-3): Ditto.

2012-02-23  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/52019
	* ipa-split.c (find_return_bb, find_retval, visit_bb): Ignore
	CLOBBER stmts.

2012-02-23  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

	* acinclude.m4: Use HAVE_INITFINI_ARRAY_SUPPORT instead of
	HAVE_INITFINI_ARRAY to work around namespace pollution in
	certain versions of newlib system headers.
	* config.in: Regenerate.
	* configure: Regenerate.
	* config/initfini-array.h: Use HAVE_INITFINI_ARRAY_SUPPORT
	instead of HAVE_INITFINI_ARRAY.

2012-02-22  Uros Bizjak  <ubizjak@gmail.com>

	PR target/52330
	* config/i386/i386.c (ix86_print_operand) <case 'H'>: Error out if x
	is not offsettable memory reference.

2012-02-22  Georg-Johann Lay  <avr@gjlay.de>

	PR target/18145
	* config/avr/avr.c (avr_asm_output_aligned_decl_common): Skip
	setting avr_need_clear_bss_p for __gnu_lto* symbols.

2012-02-22  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr.h (avr_accumulate_outgoing_args): Return int.
	* config/avr/avr.c (avr_accumulate_outgoing_args): Return int.

2012-02-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* configure.ac (LIB_TLS_SPEC): Enforce use of alternate thread
	library on Solaris 8 even without TLS support.
	* configure: Regenerate.

2012-02-22  Richard Guenther  <rguenther@suse.de>

	PR middle-end/52329
	* gimple-fold.c (fold_stmt_1): Also canonicalize ADDR_EXPRs
	for GIMPLE_DEBUG stmts.

2012-02-22  Martin Jambor  <mjambor@suse.cz>

	PR middle-end/51782
	* emit-rtl.c (set_mem_attributes_minus_bitpos): Set address space
	according to the base object.

2012-02-22  Georg-Johann Lay  <avr@gjlay.de>

	PR rtl-optimization/50063
	* config/avr/avr.md (movhi_sp_r): Handle -1 (unknown IRQ state)
	and 2 (8-bit SP) in operand 2.
	* config/avr/avr.c (avr_prologue_setup_frame): Adjust prologue
	setup to use movhi_sp_r instead of vanilla move to write SP.
	Adjust REG_CFA notes to superseed unspec.
	(expand_epilogue): Adjust epilogue setup to use movhi_sp_r instead
	of vanilla move.
	As function body might contain CLI or SEI: Use irq_state 0 (IRQ
	known to be off) only with TARGET_NO_INTERRUPTS. Never use
	irq_state 1 (IRQ known to be on) here.

2012-02-21  Bernd Schmidt  <bernds@codesourcery.com>

	* ira.c (check_allocation): Use REG_WORDS_BIG_ENDIAN, not
	WORDS_BIG_ENDIAN.
	* ira-color.c (setup_profitable_hard_regs, check_hard_reg_p,
	assign_hard_reg): Likewise.

2012-02-21  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr.md (neghi2): Remove "!d,0" alternative. Tweak "r,0".

2012-02-21  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr.md
	(*dec-and-branchhi!=-1.d.clobber): New text peephole.
	(*dec-and-branchhi!=-1.l.clobber): New text peephole.

2012-02-21  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr-protos.h (avr_accumulate_outgoing_args): Move
	prototype from here to...
	* config/avr/avr.h: ...here.

2012-02-21  Richard Earnshaw  <rearnsha@arm.com>

	PR target/52294
	* thumb2.md (thumb2_shiftsi3_short): Split register and
	immediate shifts.  For register shifts tie operands 0 and 1.
	(peephole2 for above): Check that register-controlled shifts
	have suitably tied operands.

2012-02-21  Quentin Neill  <quentin.neill@amd.com>

	PR target/52137
	* config/i386/bdver1.md (bdver1_call, bdver1_push,
	bdver1_pop, bdver1_leave, bdver1_lea, bdver1_imul_DI, bdver1_imul,
	bdver1_imul_mem_DI, bdver1_imul_mem, bdver1_idiv, bdver1_idiv_mem,
	bdver1_str, bdver1_idirect, bdver1_ivector, bdver1_idirect_loadmov,
	bdver1_idirect_load, bdver1_ivector_load, bdver1_idirect_movstore,
	bdver1_idirect_both, bdver1_ivector_both, bdver1_idirect_store,
	bdver1_ivector_store, bdver1_fldxf, bdver1_fld, bdver1_fstxf,
	bdver1_fst, bdver1_fist, bdver1_fmov_bdver1, bdver1_fadd_load,
	bdver1_fadd, bdver1_fmul_load, bdver1_fmul, bdver1_fsgn,
	bdver1_fdiv_load, bdver1_fdiv, bdver1_fpspc_load, bdver1_fpspc,
	bdver1_fcmov_load, bdver1_fcmov, bdver1_fcomi_load,
	bdver1_fcomi, bdver1_fcom_load, bdver1_fcom,
	bdver1_fxch, bdver1_ssevector_avx128_unaligned_load,
	bdver1_ssevector_avx256_unaligned_load,
	bdver1_ssevector_sse128_unaligned_load,
	bdver1_ssevector_avx128_load, bdver1_ssevector_avx256_load,
	bdver1_ssevector_sse128_load, bdver1_ssescalar_movq_load,
	bdver1_ssescalar_vmovss_load, bdver1_ssescalar_sse128_load,
	bdver1_mmxsse_load, bdver1_sse_store_avx256, bdver1_sse_store,
	bdver1_mmxsse_store_short, bdver1_ssevector_avx256,
	bdver1_movss_movsd, bdver1_mmxssemov, bdver1_sselog_load_256,
	bdver1_sselog_256, bdver1_sselog_load, bdver1_sselog,
	bdver1_ssecmp_load, bdver1_ssecmp, bdver1_ssecomi_load,
	bdver1_ssecomi, bdver1_vcvtX2Y_avx256_load, bdver1_vcvtX2Y_avx256,
	bdver1_ssecvt_cvtss2sd_load, bdver1_ssecvt_cvtss2sd,
	bdver1_sseicvt_cvtsi2sd_load, bdver1_sseicvt_cvtsi2sd,
	bdver1_ssecvt_cvtpd2ps_load, bdver1_ssecvt_cvtpd2ps,
	bdver1_ssecvt_cvtdq2ps_load, bdver1_ssecvt_cvtdq2ps,
	bdver1_ssecvt_cvtdq2pd_load, bdver1_ssecvt_cvtdq2pd,
	bdver1_ssecvt_cvtps2pd_load, bdver1_ssecvt_cvtps2pd,
	bdver1_ssecvt_cvtsX2si_load, bdver1_ssecvt_cvtsX2si,
	bdver1_ssecvt_cvtpd2pi_load, bdver1_ssecvt_cvtpd2pi,
	bdver1_ssecvt_cvtpd2dq_load, bdver1_ssecvt_cvtpd2dq,
	bdver1_ssecvt_cvtps2pi_load, bdver1_ssecvt_cvtps2pi,
	bdver1_ssemuladd_load_256, bdver1_ssemuladd_256,
	bdver1_ssemuladd_load, bdver1_ssemuladd, bdver1_sseimul_load,
	bdver1_sseimul, bdver1_sseiadd_load, bdver1_sseiadd,
	bdver1_ssediv_double_load_256, bdver1_ssediv_double_256,
	bdver1_ssediv_single_load_256, bdver1_ssediv_single_256,
	bdver1_ssediv_double_load, bdver1_ssediv_double,
	bdver1_ssediv_single_load, bdver1_ssediv_single, bdver1_sseins):
	Add "bdver2" attribute.

2012-02-21  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/s390.c (s390_option_override): Make -mhard-dfp the
	default if possible and not specified otherwise.

2012-02-21  Richard Guenther  <rguenther@suse.de>

	PR middle-end/52314
	* gimplify.c (create_tmp_from_val): Use the main variant type
	for the type of the temporary we create.

2012-02-21  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/52324
	* gimplify.c (gimplify_expr): When re-gimplifying expressions
	do not gimplify a MEM_REF address operand if it is already
	in suitable form.

2012-02-21  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/s390.md ("fixuns_trunc<mode>si2"): Replace
	TARGET_HARD_FLOAT with TARGET_HARD_DFP.

2012-02-21  Richard Guenther  <rguenther@suse.de>

	* tree-vect-stmts.c (vectorizable_load): Use pre-computed
	nested_in_vect_loop.

2012-02-21  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/52318
	* gimple-fold.c (gimplify_and_update_call_from_tree): Add
	vdef also to non-pure/const call stmts in the sequence.

2012-02-21  Tristan Gingold  <gingold@adacore.com>

	* config/vms/vms-ld.c (main): Fix IDENTIFICATION padding.

2012-02-20  David S. Miller  <davem@davemloft.net>

	* config/sparc/sparc.md (load_pcrel_sym<P:mode>): Explain why we
	don't use the "rd %pc" instruction on v9 for PIC register loads.

2012-02-20  Aldy Hernandez  <aldyh@redhat.com>

	PR middle-end/52141
	* trans-mem.c (ipa_tm_scan_irr_block): Error out on GIMPLE_ASM's
	in a transaction safe function.

2012-02-20  Kai Tietz  <ktietz@redhat.com>

	PR target/52238
	* stor-layout.c (place_field): Handle desired_align for
	ms-bitfields, too.

2012-02-20  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/52298
	* tree-vect-stmts.c (vectorizable_store): Properly use
	STMT_VINFO_DR_STEP instead of DR_STEP when vectorizing
	outer loops.
	(vectorizable_load): Likewise.
	* tree-vect-data-refs.c (vect_analyze_data_ref_access):
	Access DR_STEP after ensuring it is not NULL.

2012-02-20  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/52286
	* fold-const.c (fold_binary_loc): For (X & C1) | C2
	optimization use double_int_to_tree instead of build_int_cst_wide,
	rewrite to use double_int vars.

2012-02-20  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	PR target/50166
	* acinclude.m4 (gcc_AC_INITFINI_ARRAY): Require gcc_SUN_LD_VERSION.
	Define _start.
	Remove -e 0 from $gcc_cv_ld invocation.
	Only use __GLIBC_PREREQ if defined.
	Enable on Solaris since Solaris 8 patch.
	(gcc_SUN_LD_VERSION): New macro.
	* configure.ac (ld_ver) <*-*-solaris2*>: Refer to
	gcc_SUN_LD_VERSION for version number format.
	* configure: Regenerate.
	* varasm.c (get_elf_initfini_array_priority_section): Set
	SECTION_NOTYPE for non-default priority.
	Use get_section instead of get_unnamed_section to emit
	.init_array/.fini_array with default priority.

2012-02-19  Richard Sandiford  <rdsandiford@googlemail.com>

	* config/mips/mips.c (mips_need_mips16_rdhwr_p): New variable.
	(mips_get_tp): Set it.  Record that __mips16_rdhwr binds locally.
	(mips_start_unique_function, mips_output_mips16_rdhwr)
	(mips_code_end): New functions.
	(TARGET_ASM_CODE_END): Define.

2012-02-19  Richard Sandiford  <rdsandiford@googlemail.com>

	* config/mips/mips.c (mips16_build_call_stub): Add CFI information
	to stubs with non-sibling calls.

2012-02-18  Sandra Loosemore  <sandra@codesourcery.com>

	* doc/invoke.texi (-fira-* options): Copy-edit.
	(ira-* parameters): Copy-edit.

2012-02-17  Sandra Loosemore  <sandra@codesourcery.com>

	* doc/invoke.texi: Minor copy-edits to bring into conformance with
	GCC coding conventions.

2012-02-17  Sandra Loosemore  <sandra@codesourcery.com>

	* doc/invoke.texi: Consistently hyphenate "big-endian"/"little-endian"
	when used as adjectives.

2012-02-16  Sandra Loosemore  <sandra@codesourcery.com>

	* doc/invoke.texi: Clean up "that"/"which" confusion.

2012-02-17  Steven Bosscher  <steven@gcc.gnu.org>

	* system.h: Poison SMALL_REGISTER_CLASSES
	* config/rl78/rl78.h: Replace SMALL_REGISTER_CLASSES with hook.
	* config/rx/rx.h: Remove SMALL_REGISTER_CLASSES.

2012-02-16  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/52285
	* tree-tailcall.c (find_tail_calls): Ignore gimple_clobber_p stmts
	when deciding if a call is a tail call or tail recursion.

2012-02-16  Kai Tietz  <ktietz@redhat.com>

	* config/i386/i386.c (legitimate_pic_address_disp_p): Allow
	interger-constant displacement for UNSPEC_PCREL.

2012-02-16  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/52208
	* ira-costs.c (scan_one_insn): Don't decrease mem_cost
	for MEMs with REG_EQUIV, if the MEM isn't general_operand.

	PR tree-optimization/52255
	* tree-vect-loop-manip.c (slpeel_tree_peel_loop_to_edge): If
	loop->header has virtual PHI, but exit_e->dest doesn't, add
	virtual PHI to exit_e->dest and adjust all uses after the loop.

	PR debug/52260
	* dwarf2out.c (copy_decls_walk): Fill in *slot before traversing
	children with clone_tree_hash, not after it.

2012-02-16  Iain Sandoe  <iains@gcc.gnu.org>

	* config/darwin.h (ASM_OUTPUT_LABELREF): Add user label prefix for
	extended identifiers.

2012-02-16  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/51929
	* cgraphunit.c (verify_edge_corresponds_to_fndecl): If node is
	a same_body_alias, also test whether e->callee isn't a former
	or current clone of the decl this is a same body alias of.

	PR translation/52264
	* cgraphunit.c (verify_cgraph_node): Fix a typo.

2012-02-15  Sandra Loosemore  <sandra@codesourcery.com>

	* doc/invoke.texi: Clean up "n-bit/byte/word" modifiers.

2012-02-15  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/52199
	* config/rs6000/rs6000.c (rs6000_expand_vector_init): Use
	force_reg instead of copy_to_reg for better optimization.  Force
	non-register or memory operands into a register.

2012-02-15  Andrew MacLeod  <amacleod@redhat.com>

	* extend.texi: Reserve upper bits of memory model for future use.

2012-01-15  Georg-Johann Lay  <avr@gjlay.de>
	    Anatoly Sokolov <aesok@post.ru>
	    Eric Weddington <eric.weddington@atmel.com>

	PR target/52261
	* config/avr/avr-devices.c (avr_arch_types): Add avrxmega2,
	avrxmega4, avrxmega5, avrxmega6, avrxmega7.
	Rewrite initializers for .macro.
	* config/avr/avr-mcus.def (AVR_MCU): Add known MCUs:
	avrxmega2: atxmega16a4, atxmega16d4, atxmega16x1, atxmega32a4
	atxmega32d4, atxmega32x1.
	avrxmega4: atxmega64a3, atxmega64d3.
	avrxmega5: atxmega64a1, atxmega64a1u.
	avrxmega6: atxmega128a3, atxmega128d3, atxmega192a3, atxmega192d3,
	atxmega256a3, atxmega256a3b, atxmega256a3bu, atxmega256d3.
	avrxmega7: atxmega128a1, atxmega128a1u.
	* config/avr/avr.h (enum avr_arch): Add: ARCH_AVRXMEGA2,
	ARCH_AVRXMEGA4,	ARCH_AVRXMEGA5, ARCH_AVRXMEGA6, ARCH_AVRXMEGA7.
	(struct base_arch_s): Rename reserved to xmega_p.
	Rename reserved2 to have_rampd.
	(AVR_XMEGA): New define.
	(AVR_HAVE_RAMPD, AVR_HAVE_RAMPX, AVR_HAVE_RAMPY): New defines.
	(AVR_HAVE_RAMPZ): Change definition to fit xmega.
	* config/avr/predicates.md (io_address_operand): Take into
	account SFR offset.
	(low_io_address_operand): Ditto.
	(high_io_address_operand): Ditto.
	* config/avr/avr.md (isa): Add alternatives no_xmega, xmega.
	(enabled, movhi_sp_r): Use them.
	* config/avr/avr-c.c (avr_cpu_cpp_builtins): Use
	cpp_define_formatted to built-in define __AVR_ARCH__.
	(__AVR_XMEGA__): New built-in define.
	(__AVR_HAVE_RAMPD__): New built-in define.
	(__AVR_HAVE_RAMPX__): New built-in define.
	(__AVR_HAVE_RAMPY__): New built-in define.
	(__AVR_HAVE_RAMPZ__): Change condition when to built-in define it.

	* config/avr/avr.c (avr_addr_t): Add ccp, rampd, rampx, rampy.
	(avr_option_override): Initialize them.
	(sreg_rtx, rampd_rtx, rampx_rtx, rampy_rtx): New GTY rtx.
	(avr_init_expanders): Initialize them. No more block several calls.
	(emit_push_sfr): New static function.
	(avr_prologue_setup_frame): Use it to push SREG, RAMPD/X/Y/Z as needed.
	Handle AVR_XMEGA.
	(expand_epilogue): Handle AVR_XMEGA. Pop RAMPD/X/Y/Z as needed.
	(avr_print_operand): Print addreeses as symbols for
	RAMPX, RAMPY, RAMPD, CCP.
	(output_movhi): Handle AVR_XMEGA when writing to SP.
	(avr_out_movhi_mr_r_xmega): New static function.
	(out_movhi_mr_r): Forward to avr_out_movhi_mr_r_xmega for AVR_XMEGA.
	(avr_file_start): Print symbol defines for __RAMPX__,  __RAMPY__,
	__RAMPD__,  __CCP__ as needed.

	* config/avr/multilib.h: Regenerate.
	* config/avr/t-multilib: Regenerate.
	* config/avr/avr-tables.opt: Regenerate.

2012-02-15  Tobias Grosser <grosser@fim.uni-passau.de>

	PR tree-optimization/50561
	* graphite-flattening.c (lst_project_loop): Do not
	remove old scattering dimensions after flattening.
	(lst_do_flatten): Likewise.

2012-02-15  Georg-Johann Lay  <avr@gjlay.de>

	* doc/extend.texi (AVR Built-in Functions): Remove doc for
	__builtin_avr_map8, __builtin_avr_map16.
	Document __builtin_avr_insert_bits.

	* config/avr/avr.md (map_bitsqi, map_bitshi): Remove.
	(insert_bits): New insn.
	(adjust_len.map_bits): Rename to insert_bits.
	(UNSPEC_MAP_BITS): Rename to UNSPEC_INSERT_BITS.
	* avr-protos.h (avr_out_map_bits): Remove.
	(avr_out_insert_bits, avr_has_nibble_0xf): New.
	* config/avr/constraints.md (Cxf,C0f): New.
	* config/avr/avr.c (avr_cpu_cpp_builtins): Remove built-in
	defines __BUILTIN_AVR_MAP8, __BUILTIN_AVR_MAP16.
	New built-in define __BUILTIN_AVR_INSERT_BITS.
	* config/avr/avr.c (TARGET_FOLD_BUILTIN): New define.
	(enum avr_builtin_id): Add AVR_BUILTIN_INSERT_BITS.
	(avr_move_bits): Rewrite.
	(avr_fold_builtin, avr_map_metric, avr_map_decompose): New static
	functions.
	(avr_map_op_t): New typedef.
	(avr_map_op): New static variable.
	(avr_out_insert_bits, avr_has_nibble_0xf): New functions.
	(adjust_insn_length): Handle ADJUST_LEN_INSERT_BITS.
	(avr_init_builtins): Add definition for __builtin_avr_insert_bits.
	(bdesc_3arg, avr_expand_triop_builtin): New.
	(avr_expand_builtin): Use them. And handle AVR_BUILTIN_INSERT_BITS.
	(avr_revert_map, avr_swap_map, avr_id_map, avr_sig_map): Remove.
	(avr_map_hamming_byte, avr_map_hamming_nonstrict): Remove.
	(avr_map_equal_p, avr_map_sig_p): Remove.
	(avr_out_swap_bits, avr_out_revert_bits, avr_out_map_bits): Remove.
	(bdesc_2arg): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.
	(adjust_insn_length): Remove handling for ADJUST_LEN_MAP_BITS.
	(enum avr_builtin_id): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.
	(avr_init_builtins): Remove __builtin_avr_map8, __builtin_avr_map16.
	(avr_expand_builtin): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.

2012-02-14  Bernd Schmidt  <bernds@codesourcery.com>

	* config/c6x/c6x.md (reserve_cycles): New attribute.
	* config/c6x/c6x.c (c6x_sched_reorder_1): Ensure insns we predicate
	don't reserve functional units after the branch occurs.

2012-02-14  Aldy Hernandez  <aldyh@redhat.com>

	PR middle-end/52142
	* ipa-inline.c (can_inline_edge_p): Do not inline tm_pure
	functions into non-tm_pure functions.

2012-02-14  Eric Botcazou  <ebotcazou@adacore.com>

	PR lto/52178
	* gimple.c (iterative_hash_gimple_type): Use RECORD_OR_UNION_TYPE_P.
	(iterative_hash_canonical_type): Likewise.
	* tree-ssa-pre.c (fini_pre): Clean up the CFG only after purging all
	the dead edges.

2012-02-14  Bernd Schmidt  <bernds@codesourcery.com>

	* haifa-sched.c (prune_ready_list): Ensure that if there is a
	sched-group insn, it either remains alone or the entire list is pruned.

2012-02-14  Jonathan Wakely  <jwakely.gcc@gmail.com>

	* doc/install.texi (Prerequisites): Fix grammar.
	(Configuration): Likewise.

2012-02-14  Jonathan Wakely  <jwakely.gcc@gmail.com>

	* doc/install.texi (Prerequisites): Suggest building GMP, MPFR and
	MPC as part of GCC before describing configuring with --with-gmp etc.
	(Installing GCC: Configuration): --with-gmp etc. aren't needed if
	sources are present.

2012-02-14  Jakub Jelinek  <jakub@redhat.com>

	PR debug/51950
	* dwarf2out.c (clone_tree_hash): New function.
	(copy_decls_walk): Use it instead of clone_tree.

2012-02-14  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/52244
	PR tree-optimization/51528
	* tree-sra.c (analyze_access_subtree): Only create INTEGER_TYPE
	replacements for integral types.

2012-02-14  Walter Lee  <walt@tilera.com>

	* config.gcc: Handle tilegx and tilepro.
	* configure.ac (gcc_cv_as_dwarf2_debug_line): Enable test for
	tilegx and tilepro.
	Add HAVE_AS_TLS check for tilegx and tilepro.
	* configure: Regenerate.
	* doc/contrib.texi: Add Mat Hostetter and self.
	* doc/extend.texi (TILE-Gx Built-in Functions): New node.
	Document instruction intrinsics and network accessing intrinsics.
	(TILEPro Built-in Functions): New node.  Document instruction
	intrinsics and network accessing intrinsics.
	* doc/install.texi (Specific, tilegx-*-linux*): Document it.
	(Specific, tilepro-*-linux*): Likewise.
	* doc/invoke.texi (TILE-Gx Options): New section.
	(TILEPro Options): New section.
	* doc/md.texi (TILE-Gx): New section.
	(TILEPro): New section.
	* common/config/tilegx/tilegx-common.c: New file.
	* common/config/tilepro/tilepro-common.c: New file.
	* config/tilegx/constraints.md: New file.
	* config/tilegx/linux.h: New file.
	* config/tilegx/mul-tables.c: New file.
	* config/tilegx/predicates.md: New file.
	* config/tilegx/sync.md: New file.
	* config/tilegx/t-tilegx: New file.
	* config/tilegx/tilegx-builtins.h: New file.
	* config/tilegx/tilegx-c.c: New file.
	* config/tilegx/tilegx-generic.md: New file.
	* config/tilegx/tilegx-modes.def: New file.
	* config/tilegx/tilegx-multiply.h: New file.
	* config/tilegx/tilegx-protos.h: New file.
	* config/tilegx/tilegx.c: New file.
	* config/tilegx/tilegx.h: New file.
	* config/tilegx/tilegx.md: New file.
	* config/tilegx/tilegx.opt: New file.
	* config/tilepro/constraints.md: New file.
	* config/tilepro/gen-mul-tables.cc: New file.
	* config/tilepro/linux.h: New file.
	* config/tilepro/mul-tables.c: New file.
	* config/tilepro/predicates.md: New file.
	* config/tilepro/t-tilepro: New file.
	* config/tilepro/tilepro-builtins.h: New file.
	* config/tilepro/tilepro-c.c: New file.
	* config/tilepro/tilepro-generic.md: New file.
	* config/tilepro/tilepro-modes.def: New file.
	* config/tilepro/tilepro-multiply.h: New file.
	* config/tilepro/tilepro-protos.h: New file.
	* config/tilepro/tilepro.c: New file.
	* config/tilepro/tilepro.h: New file.
	* config/tilepro/tilepro.md: New file.
	* config/tilepro/tilepro.opt: New file.

2012-02-14  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/52210
	* tree-vect-slp.c (vect_get_and_check_slp_defs): Call
	vect_model_simple_cost with two entry vect_def_type array instead
	of an address of dt.

2012-02-14  Richard Guenther  <rguenther@suse.de>

	PR lto/52178
	* tree-streamer-in.c (lto_input_ts_field_decl_tree_pointers):
	Do not stream DECL_QUALIFIER.
	* tree-streamer-out.c (write_ts_field_decl_tree_pointers): Likewise.
	* tree.c (free_lang_data_in_decl): Free DECL_QUALIFIER.
	(find_decls_types_r): Do not walk DECL_QUALIFIER.

2012-02-14  Jakub Jelinek  <jakub@redhat.com>

	PR c/52181
	* c-decl.c (merge_decls): Copy DECL_USER_ALIGN bit from olddecl to
	newdecl.

2012-02-13  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/52172
	* cselib.h (cselib_subst_to_values_from_insn): New prototype.
	* cselib.c (cselib_subst_to_values_from_insn): New function.
	* sched-deps.c (add_insn_mem_dependence,
	sched_analyze_1, sched_analyze_2): Use it.

2012-02-13  Jan Hubicka  <jh@suse.cz>

	PR middle-end/52214
	* predict.c (predict_paths_for_bb): Fix thinko in prevoius patch.

2012-02-13  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc.c (LINK_COMMAND_SPEC): Deal with -fgnu-tm.
	(GTM_SELF_SPECS): Define if not already defined.
	(driver_self_specs): Add GTM_SELF_SPECS.
	* config/darwin.h (LINK_COMMAND_SPEC_A): Deal with -fgnu-tm.
	(GTM_SELF_SPECS): Define.
	* config/i386/cygwin.h (GTM_SELF_SPECS): Likewise.
	* config/i386/mingw32.h (GTM_SELF_SPECS): Likewise.

2012-02-13  Jakub Jelinek  <jakub@redhat.com>

	* cselib.c (expand_loc): Return sp, fp, hfp or cfa base reg right
	away if seen.

	* cselib.c (dump_cselib_val): Don't assume l->setting_insn is non-NULL.

	PR middle-end/52230
	* omp-low.c (expand_omp_for): If a static schedule without chunk size
	has NULL region->cont, force fd.chunk_size to be integer_zero_node.

2012-02-13  Andrew MacLeod  <amacleod@redhat.com>

	PR c/52190
	* doc/extend.texi : Fix another __atomic_compare_exchange typo.

2012-02-13  Richard Guenther  <rguenther@suse.de>

	PR translation/52211
	* passes.c (enable_disable_pass): Fix typo.

2012-02-13  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/52209
	* expr.c (expand_expr_real_2) <case BIT_NOT_EXPR>: Only expand using
	XOR for reduce_bit_field if type is unsigned.

2012-02-12  Eric Botcazou  <ebotcazou@adacore.com>

	* config/sparc/sparc.h (CANNOT_CHANGE_MODE_CLASS): In 64-bit mode,
	disallow changes from SFmode to mode with different size in FP regs.

2012-02-12  Robert Millan  <rmh@gnu.org>
	    Gerald Pfeifer <gerald@pfeifer.com>

	* ginclude/stddef.h [__FreeBSD_kernel__] (__size_t): Do not define.
	Tweak comment.

2012-02-11  Richard Sandiford  <rdsandiford@googlemail.com>

	PR rtl-optimization/52175
	* reorg.c (fill_slots_from_thread): Don't apply add/sub optimization
	to frame-related instructions.

2012-02-10  Jason Merrill  <jason@redhat.com>

	PR c++/51910
	* tlink.c (demangled_hash_entry): Change mangled to a VEC.
	(demangle_new_symbols): Fill it.
	(scan_linker_output): Walk it.
	(start_tweaking): Split out from scan_linker_output.
	(maybe_tweak): Update sym->chosen.
	* Makefile.in (COLLECT2_OBJS): Add vec.o and gcc-none.o

2012-02-11  Jakub Jelinek  <jakub@redhat.com>

	PR debug/52132
	* reg-stack.c (subst_stack_regs_in_debug_insn): Don't use get_true_reg.

2012-02-11  Uros Bizjak  <ubizjak@gmail.com>

	* compare-elim.c (find_comparisons_in_bb): Eliminate only compares
	having the same mode as previous compare.

2012-02-10  Eric Botcazou  <ebotcazou@adacore.com>

	* config/sparc/sparc.c (sparc_flat_expand_prologue): Use emit_use.
	* config/sparc/sparc.md (UNSPECV_GOTO): Delete.
	(nonlocal_goto_internal): Likewise.
	(nonlocal_goto): Emit a use and an indirect jump directly.

2012-02-10  Andrew MacLeod  <amacleod@redhat.com>

	PR c/52190
	* doc/extend.texi : Update comments for __atomic_compare_exchange and
	__atomic_{is,always}_lock_free.

2012-02-10  Uros Bizjak  <ubizjak@gmail.com>

	PR target/52146
	* config/i386/i386.c (ix86_legitimate_address_p): Disallow
	negative constant address for x32.

2012-02-10  Richard Henderson  <rth@redhat.com>

	* tree-ssa-dce.c (propagate_necessity): Handle GIMPLE_TRANSACTION.
	* tree-ssa-operands.c (parse_ssa_operands): Add virtual operands
	for GIMPLE_TRANSACTION.  Tidy if's into a switch.

2012-02-10  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
	    Ira Rosen  <irar@il.ibm.com>

	PR tree-optimization/50031
	* targhooks.c (default_builtin_vectorization_cost): Handle
	vec_promote_demote.
	* target.h (enum vect_cost_for_stmt): Add vec_promote_demote.
	* tree-vect-loop.c (vect_get_single_scalar_iteraion_cost): Handle
	all types of reduction and pattern statements.
	(vect_estimate_min_profitable_iters): Likewise.
	* tree-vect-stmts.c (vect_model_promotion_demotion_cost): New function.
	(vect_get_load_cost): Use vec_perm for permutations; add dump logic
	for explicit realigns.
	(vectorizable_conversion): Call vect_model_promotion_demotion_cost.
	* config/spu/spu.c (spu_builtin_vectorization_cost): Handle
	vec_promote_demote.
	* config/i386/i386.c (ix86_builtin_vectorization_cost): Likewise.
	* config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Update
	vec_perm for VSX and handle vec_promote_demote.

2012-02-10  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/52177
	* builtins.c (fold_builtin_atomic_always_lock_free,
	expand_builtin_atomic_always_lock_free,
	fold_builtin_atomic_is_lock_free, expand_builtin_atomic_is_lock_free):
	Return and/or test boolean_true_node/boolean_false_node instead of
	integer_one_node/integer_zero_node.

2012-02-10  Jan Hubicka  <jh@suse.cz>

	PR middle-end/48600
	* predict.c (predict_paths_for_bb): Prevent looping.
	(predict_paths_leading_to_edge, predict_paths_leading_to): Update.

2012-02-10  Roman Zhuykov  <zhroma@ispras.ru>

	* config/arm/arm.c (output_move_double): In one case properly
	count number of instructions that will be emitted.

2012-02-10  Richard Guenther  <rguenther@suse.de>

	PR translation/52193
	* cgraphunit.c (cgraph_mark_functions_to_output): Fix typo.

2012-02-09  Peter Bergner  <bergner@vnet.ibm.com>

	PR middle-end/52140
	* dojump.c (do_compare_rtx_and_jump): Use SCALAR_FLOAT_MODE_P.

2012-02-09  Jakub Jelinek  <jakub@redhat.com>

	PR debug/52165
	* var-tracking.c (emit_note_insn_var_location): If
	EMIT_NOTE_BEFORE_INSN and insn is NOTE_INSN_CALL_ARG_LOCATION,
	emit it before next non-NOTE_INSN_CALL_ARG_LOCATION
	non-NOTE_DURING_CALL_P insn.

2012-02-09  Bin Cheng  <bin.cheng@arm.com>

	PR middle-end/51867
	* builtins.c (expand_builtin): Don't check DECL_ASSEMBLER_NAME_SET_P.

2012-02-08  Magnus Granberg  <zorry@gentoo.org>

	PR driver/48524
	* gcc.c (switch_matches) Support switches with separated form,
	-D and -U.

2012-02-08  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr.md (SREG_ADDR): Remove constant definition.
	(SP_ADDR): Ditto.
	(RAMPZ_ADDR): Ditto.
	* config/avr/avr.c (avr_addr_t): New typedef.
	(avr_addr): New struct to hold RAM address of SPL, SPH, RAMPZ, SREG.
	(avr_init_expanders): Initialize it.
	(expand_prologue): Use avr_addr instead of RAMPZ_ADDR, SP_ADDR,
	SREG_ADDR.
	(expand_epilogue): Ditto.
	(avr_print_operand): Ditto.
	(avr_file_start): Ditto.
	(avr_emit_movmemhi): Ditto.

2012-02-08  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/46886
	* tree-flow.h (do_while_loop_p): Declare.
	* tree-ssa-loop-ch.c (do_while_loop_p): Export.
	* tree-parloops.c (parallelize_loops): Only parallelize do-while loops.

2012-02-08  Andrew MacLeod  <amacleod@redhat.com>

	* optabs.c (expand_atomic_load): Do not assume compare_and_swap will
	always succeed for integers larger than a native word.

2012-02-08  Richard Guenther  <rguenther@suse.de>

	PR rtl-optimization/52170
	* simplify-rtx.c (simplify_plus_minus): Use CONSTM1_RTX to
	properly handle integer vector modes.

2012-02-08  Jakub Jelinek  <jakub@redhat.com>

	PR gcov-profile/52150
	* coverage.c: Include target.h.
	(build_var): Call targetm.strip_name_encoding on the assembler name.
	Change one _ into . or $ if the target allows it.
	* Makefile.in (coverage.o): Depend on $(TARGET_H).

	PR rtl-optimization/52139
	* cfgrtl.c (cfg_layout_merge_blocks): If BB_END
	is a BARRIER after emit_insn_after_noloc, move BB_END
	to the last non-BARRIER insn before it.

2012-02-07  Richard Sandiford  <rdsandiford@googlemail.com>

	PR middle-end/24306
	* config/mips/mips.c (mips_std_gimplify_va_arg_expr): New function.
	(mips_gimplify_va_arg_expr): Call it instead of
	std_gimplify_va_arg_expr.

2012-02-07  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/rs6000.c (rs6000_trampoline_init): Fix error
	message for -mno-pointers-to-nested-function.

2012-02-07  Eric Botcazou  <ebotcazou@adacore.com>

	PR middle-end/51994
	* expr.c (get_inner_reference): If there is an offset, add a negative
	bit position to it (if any).

2012-02-07  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/52060
	* combine.c (try_combine): Add i0src_copy and i0src_copy2 variables,
	copy i1src to i1src_copy whenever added_sets_2 && i1_feeds_i2_n already
	before i1dest -> i1src substitution in newpat, copy i0src to i0src_copy
	and/or i0src_copy2 when needed.

2012-02-07  Jakub Jelinek  <jakub@redhat.com>

	* gcc.c (main): Don't look for lto-wrapper or lto-wrapper
	or LTOPLUGINSONAME if have_c.

	* config/freebsd-spec.h: Add comment about what macros can be defined
	in this header.
	(LINK_EH_SPEC, LINK_SSP_SPEC, USE_LD_AS_NEEDED): Don't define here.
	* config/freebsd.h (LINK_EH_SPEC, LINK_SSP_SPEC, USE_LD_AS_NEEDED): But
	here instead.

2012-02-07  Richard Guenther  <rguenther@suse.de>

	* gimple-pretty-print.c (dump_gimple_phi): Avoid excessive
	newline in -alias dumps.

2012-02-07  Kai Tietz  <ktietz@redhat.com>
	    Dave Korn  <dave.korn.cygwin@gmail.com>

	PR target/40068
	* config/i386/winnt-cxx.c (i386_pe_adjust_class_at_definition):
	Take care that typinfo gets dllexport-attribute.

2012-02-07  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/52074
	* expr.c (expand_expr_addr_expr_1): For CONSTANT_CLASS_P or CONST_DECL
	if modifier < EXPAND_SUM call force_operand on the result.

2012-02-07  Joern Rennecke  <joern.rennecke@embecosm.com>

	* config/epiphany/epiphany.h (ASM_DECLARE_FUNCTION_SIZE): Redefine,
	adding __forwarder_dst__ prefix if a forwarder_section attribute is
	present.
	(epiphany_function_type): Replace types for specific interrupts with
	EPIPHANY_FUNCTION_INTERRUPT.
	(EPIPHANY_INTERRUPT_P): Update.
	* config/epiphany/epiphany.c (epiphany_handle_forwarder_attribute):
	New static function.
	(epiphany_attribute_table) <interrupt>: min_len is 0, max_len is 9.
	<disinterrupt>: Affects type identity.
	(epiphany_handle_interrupt_attribute): Handle variable number of
	arguments.
	(epiphany_compute_function_type): Update for new
	epiphany_function_type definition.
	(epiphany_expand_prologue): Don't save (reg:DI GPR_0) for interrupt
	handlers with a longcall forwarder.
	(epiphany_start_function): Handle multiple interrupt arguments and/or
	forwarder_section attribute.

	* config/epiphany/epiphany.h (LIB_SPEC): Link libc again after
	libgloss.

2012-02-07  Alan Modra  <amodra@gmail.com>

	PR target/52107
	* config/rs6000/rs6000.c (rs6000_emit_move): Don't create DImode
	subregs of TFmode.

2012-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR tree-optimization/50969
	* tree-vect-stmts.c (vect_model_store_cost): Correct statement cost to
	use vec_perm rather than vector_stmt.
	(vect_model_load_cost): Likewise.
	* config/i386/i386.c (ix86_builtin_vectorization_cost): Change cost of
	vec_perm to be the same as other vector statements.
	* config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Revise
	cost of vec_perm for TARGET_VSX.

2012-02-06  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/52115
	* tree-sra.c (access_has_replacements_p): New function.
	(sra_modify_assign): Use it to decide whether a use is uninitialized.

2012-02-06  Patrick Marlier  <patrick.marlier@gmail.com>

	PR middle-end/52047
	* trans-mem.c (expand_call_tm): Add an assertion.
	* calls.c (flags_from_decl_or_type): Add ECF_TM_PURE to 'no vops'
	functions.

2012-02-06  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/50955
	* tree-ssa-loop-ivopts.c (get_computation_cost_at): Artificially
	raise cost of expressions that replace an address with an
	expression based on a different pointer.

2012-02-06  Jakub Jelinek  <jakub@redhat.com>

	PR target/52129
	* calls.c (mem_overlaps_already_clobbered_arg_p): If val is
	CONST_INT_P, subtract resp. add crtl->args.pretend_args_size to it.

2012-02-06  Jonathan Wakely  <jwakely.gcc@gmail.com>

	PR c++/48680
	* doc/invoke.texi (C++ Dialect Options): Use @option markup for
	-Weffc++ and specify guidelines come from second edition.

2012-02-05  Richard Sandiford  <rdsandiford@googlemail.com>

	* config/mips/mips.md (sibcall_internal, sibcall_value_internal)
	(sibcall_value_multiple_internal, call_split, call_internal_direct)
	(call_direct_split, call_value_split, call_value_internal_direct)
	(call_value_direct_split, call_value_multiple_split): Use jal and
	jal_macro attributes.

2012-02-05  Richard Sandiford  <rdsandiford@googlemail.com>

	* reload1.c (reload_regs_reach_end_p): Replace with...
	(reload_reg_rtx_reaches_end_p): ...this function.
	(new_spill_reg_store): Update commentary.
	(emit_input_reload_insns): Don't clear new_spill_reg_store here.
	(emit_output_reload_insns): Check reload_reg_rtx_reaches_end_p
	before setting new_spill_reg_store.
	(emit_reload_insns): Use a separate loop to clear new_spill_reg_store.
	Use reload_reg_rtx_reaches_end_p instead of reload_regs_reach_end_p.
	Also use reload_reg_rtx_reaches_end_p when reading new_spill_reg_store
	for non-spill reload registers.

2012-02-05  Ira Rosen  <irar@il.ibm.com>

	PR tree-optimization/52091
	* tree-vectorizer.h (vect_is_simple_use): Add an argument.
	(vect_is_simple_use_1): Likewise.
	* tree-vect-loop.c (vectorizable_reduction): Update calls
	to vect_is_simple_use_1 and vect_is_simple_use.
	(vectorizable_live_operation): Likewise.
	* tree-vect-patterns.c (widened_name_p,
	vect_recog_vector_vector_shift_pattern, check_bool_pattern): Likewise.
	* tree-vect-stmts.c (process_use, vect_get_vec_def_for_operand,
	vectorizable_call, vectorizable_conversion, vectorizable_assignment,
	vectorizable_shift,vectorizable_operation, vectorizable_store,
	vectorizable_load): Likewise.
	(vect_is_simple_cond): Add an argument, pass it to
	vect_is_simple_use_1.
	(vectorizable_condition): Update calls to vect_is_simple_cond,
	vect_is_simple_use.
	(vect_is_simple_use): Add an argument, the statement in which
	OPERAND is used.  Check that if OPERAND's def stmt is a double
	reduction phi node, the use is a phi node too.
	(vect_is_simple_use_1): Add an argument, pass it to
	vect_is_simple_use.
	* tree-vect-slp.c (vect_get_and_check_slp_defs): Update a call
	to vect_is_simple_use.

2012-02-04  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/52095
	* modulo-sched.c (dump_insn_locator): New function.
	(loop_canon_p, sms_schedule): Use it.

	PR rtl-optimization/52113
	* lower-subreg.c (decompose_multiword_subregs): Call recog_memoized
	even for decomposable shift/zext insns.

2012-02-03  Jakub Jelinek  <jakub@redhat.com>
	    Zdenek Dvorak  <ook@ucw.cz>

	PR rtl-optimization/52092
	* loop-unswitch.c (unswitch_single_loop): Call copy_rtx_if_shared
	on get_iv_value result.

2012-02-02  Andrew Pinski  <apinski@cavium.com>

	PR middle-end/47982
	PR middle-end/43967
	* doc/libgcc.texi (__udivmoddi4/__udivmodti4): Fix documentation typo.

2012-02-02  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/48071
	* diagnostic.c (diagnostic_finish): Remove trailing newlines.

2012-02-02  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/49800
	* haifa-sched.c (sched_init): Call regstat_init_n_sets_and_refs.
	(sched_finish): Call regstat_free_n_sets_and_refs.

2012-02-02  Jia Liu  <proljc@gmail.com>

	* config/mips/mips-dspr2.md (mips_prepend): Mask operand 3 rather
	than operand 2.

2012-02-02  Jan Hubicka  <jh@suse.cz>
	    Tom de Vries  <tom@codesourcery.com>

	PR middle-end/51998
	* cgraphunit.c (cgraph_analyze_function): Break cyclic aliases.
	* varpool.c (varpool_analyze_pending_decls): Likewise.

2012-02-02  Sumanth G <sumanth.gundapaneni@kpitcummins.com>
	    Jayant R Sonar <jayant.sonar@kpitcummins.com>

	* config.gcc: Add cr16-* support.

	* doc/extend.texi: Document cr16 extensions.
	* doc/install.texi: Document cr16 install.
	* doc/invoke.texi: Document cr16 options.
	* doc/md.texi: Document cr16 constraints.

	* common/config/cr16/cr16-common.c: New file.
	* config/cr16/cr16.c: New file.
	* config/cr16/cr16.h: New file.
	* config/cr16/cr16.md: New file.
	* config/cr16/cr16.opt: New file.
	* config/cr16/cr16-protos.h: New file.
	* config/cr16/predicates.md: New file.
	* config/cr16/constraints.md: New file.
	* config/cr16/t-cr16: New file.

2012-02-02  Jakub Jelinek  <jakub@redhat.com>

	PR target/52086
	* config/i386/i386.md (*addqi_2 peephole with SImode addition): Check
	that operands[2] is either immediate, or q_regs_operand.

	PR tree-optimization/52073
	* tree-vect-stmts.c (vect_mark_relevant): When checking uses of
	a pattern stmt for pattern uses, ignore uses outside of the loop.

2012-02-01  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr.c: Resolve all AS1 and AS2 macros.
	* config/avr/avr.h (AS1, AS2, AS2C, AS3): Remove.
	(OUT_AS1, OUT_AS2): Remove.

2012-02-01  Georg-Johann Lay  <avr@gjlay.de>

	PR rtl-optimization/51374
	* combine.c (can_combine_p): Don't allow volatile_refs_p insns
	to cross other volatile_refs_p insns.

2012-02-01  Richard Guenther  <rguenther@suse.de>

	* doc/invoke.texi (fno-inline): Clarify documentation.
	(finline-small-functions): Likewise.
	(finline-functions): Likewise.
	* common.opt (finline): Adjust comment and documentation.
	(finline-small-functions): Clarify documentation.
	(finline-functions): Likewise.
	(finline-functions-called-once): Likewise.

2012-02-01  Tristan Gingold  <gingold@adacore.com>

	* c-typeck.c (composite_type): Keep mode for pointers.

2012-01-31  Richard Sandiford  <rdsandiford@googlemail.com>

	* function.h (regno_reg_rtx): Adjust comment.
	* reginfo.c (init_reg_modes_target): Only use the previous mode
	if it fits within one register.  Remove MIPS comment.

2012-01-31  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/52058
	* combine.c (do_SUBST_LINK, SUBST_LINK): Guard with #ifndef HAVE_cc0.

2012-01-31  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/s390.md ("*ashr<mode>3_and"): Add missing z196 flag
	to srak instruction.

2012-01-31  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

	* config/arm/thumb2.md (thumb2_mov_notscc): Use MVN for true condition.

2012-01-31  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/52041
	PR bootstrap/52039
	PR target/51974
	* ipa-prop.c (detect_type_change_1): Call ao_ref_init.

2012-01-31  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/51528
	* tree-sra.c (sra_modify_assign): Avoid copy-in/out for aggregate
	assigns.

2012-01-31  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/52041
	PR bootstrap/52039
	PR target/51974
	* ree.c (add_removable_extension): Change def_map argument
	to unsigned *, store in def_map 1 + offset into *insn_list vector
	instead of pointers into the vector.
	(find_removable_extensions): Adjust caller.

2012-01-30  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr.md: Resolve all AS1 and AS2 macros.
	Transform all "* quoted-c-code" to { c-code }.
	Remove redundant test for "optimize" in combine patterns.
	Move (include "avr-dimode.md") to end of file.

2012-01-30  Bin Cheng  <bin.cheng@arm.com>

	PR target/51835
	* config/arm/arm.c (arm_libcall_uses_aapcs_base): Use correct ABI
	for __aeabi_d2iz/__aeabi_d2uiz with hard-float.

2012-01-30  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/52028
	* tree-loop-distribution.c (ldist_gen): Properly update
	virtual SSA form.

2012-01-30  Jakub Jelinek  <jakub@redhat.com>

	PR debug/52027
	* dwarf2out.c (dwarf2out_switch_text_section): Don't call
	set_cur_line_info_table if not emitting debug info.

	PR tree-optimization/52046
	* tree-vect-patterns.c (check_bool_pattern): Give up if
	a comparison could throw.

	PR debug/52048
	* tree-ssa-tail-merge.c (local_def): Ignore debug uses.

2012-01-30  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/52045
	* tree-optimize.c (execute_cleanup_cfg_post_optimizing): Update
	SSA form if cfgcleanup did anything.

2012-01-30  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/52045
	* ipa-inline-transform.c (inline_transform): Call execute_fixup_cfg
	before computing final todo.

2012-01-30  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/51528
	* tree-sra.c (sra_modify_assign): Re-factor in preparation
	for PR51528 fix.

2012-01-30  Paolo Bonzini  <bonzini@gnu.org>

	* df-problems.c (df_kill_notes): Check that the use refers
	to the note under examination.

2012-01-30  Eric Botcazou  <ebotcazou@adacore.com>

	PR target/51920
	* config/sparc/sparc.c (vector_init_fpmerge): Remove INNER_MODE
	parameter and use short-lived pseudos.
	(vector_init_faligndata): Remove INNER_MODE parameter and use loop.
	(sparc_expand_vector_init): Const-ify local variables and adjust
	calls to above functions.

2012-01-30  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr.c (out_movqi_mr_r): Fix length computation.

2012-01-29  Sandra Loosemore  <sandra@codesourcery.com>

	* doc/invoke.texi: Make usage of "compile time" and
	"run time"/"runtime" consistent throughout the file.

2012-01-29  Uros Bizjak  <ubizjak@gmail.com>

	* config/alpha/alpha.c (alpha_option_override): Default to
	full IEEE compliance mode for Go language.

2011-01-29  Tijl Coosemans  <tijl@coosemans.org>

	* config/freebsd-spec.h [TARGET_LIBC_PROVIDES_SSP]
	(LINK_SSP_SPEC): Define.

2012-01-28  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR target/51871
	* config/pa/pa.c (pa_return_addr_rtx): Add support for PA2.0 export
	stubs.

2012-01-28  Sandra Loosemore  <sandra@codesourcery.com>

	* doc/invoke.texi: Correct hyphenation of "floating point",
	"double precision", and related terminology throughout the file.

2012-01-28  Jakub Jelinek  <jakub@redhat.com>

	PR target/52006
	* config/arm/arm.md (pic_add_dot_plus_eight peephole2): Use
	arm_general_register_operand predicate for operand 2 instead of
	register_operand.

2012-01-27  Ian Lance Taylor  <iant@google.com>

	PR go/47656
	* builtins.def (BUILT_IN_INIT_HEAP_TRAMPOLINE): Define.
	* builtins.c (expand_builtin_init_trampoline): Add onstack
	parameter.  Change caller.
	(expand_builtin): Handle BUILT_IN_INIT_HEAP_TRAMPOLINE.
	* tree.c (build_common_builtin_nodes): Declare
	__builtin_init_heap_trampoline.

2012-01-27  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr-protos.h (lpm_reg_rtx, lpm_addr_reg_rtx,
	tmp_reg_rtx, zero_reg_rtx, all_regs_rtx, rampz_rtx): Make global.
	* config/avr/avr.c: Ditto.
	(avr_regnames): Remove because unused.
	* config/avr/avr.md (*cpse.ne): New peephole.
	(*cpse.eq): New peephole from former cpse peepholes.

2012-01-27  Michael Eager  <eager@eagercon.com>

	* config/microblaze.c (microblaze_emit_compare): Correct
	test after pcmp instruction.

2012-01-27  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/52020
	* tree-sra.c (sra_modify_assign): Do not transform clobbers.

2012-01-27  Richard Guenther  <rguenther@suse.de>

	* ipa-pure-const.c (check_stmt): Clobbers do not make a
	function non-const/pure.

2012-01-27  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/50444
	* tree-sra.c (build_ref_for_offset): Properly adjust the
	MEM_REF type for unaligned accesses.

2012-01-27  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/50444
	* expr.c (mem_ref_refers_to_non_mem_p): New function.
	(expand_assignment): Use it.  Properly handle misaligned
	bases when expanding stores to component references.
	(expand_expr_real_1): Use mem_ref_refers_to_non_mem_p and
	refactor that case.

2012-01-27  Andrey Belevantsev  <abel@ispras.ru>

	PR middle-end/51389
	* Makefile.in (tree-data-ref.o): Depend on $(PARAMS_H).
	* tree-data-ref.h (find_data_references_in_loop): Remove declaration.
	* tree-data-ref.c (find_data_references_in_loop): Make static.
	(compute_all_dependences): Change return type to bool.  Bail out
	for too many datarefs in a loop.  Move the hunk resetting the data
	dependences vector from ...
	(compute_data_dependences_for_loop): ... here.  Account for
	compute_all_dependences returning false.
	(compute_data_dependences_for_bb): Likewise.
	* params.def (PARAM_LOOP_MAX_DATAREFS_FOR_DATADEPS): New param.
	* doc/invoke.texi (loop-max-datarefs-for-datadeps): Document it.

2012-01-27  Richard Guenther  <rguenther@suse.de>

	PR middle-end/51959
	* expr.c (store_field): Use the alias-set of the scratch memory
	for storing to it.

2012-01-27  Tom de Vries  <tom@codesourcery.com>

	PR tree-optimization/51990
	* tree-ssa-sccvn.c (copy_reference_ops_from_ref): Handle
	WITH_SIZE_EXPR.
	* tree-ssa-pre.c (create_component_ref_by_pieces_1): Same.

2012-01-27  Jakub Jelinek  <jakub@redhat.com>

	PR debug/52001
	* var-tracking.c (reverse_op): Don't add any reverse operation
	if V already has any constant locations.

2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>

	* doc/invoke.texi: Correct usage of "command line" (noun)
	vs "command-line" (adjective) throughout.

2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>

	* doc/invoke.texi (Language Independent Options): Move
	-Wcoverage-mismatch blurb from here....
	(Warning Options): ...to here.

2012-01-27  Peter Bergner  <bergner@vnet.ibm.com>

	* config/rs6000/rs6000.c (rs6000_option_override_internal):
	Set rs6000_always_hint to false for 476.

2012-01-27  Matthias Klose  <doko@ubuntu.com>

	* gcc.c (add_sysrooted_prefix): Remove trailing dir separator from
	  system root.
	* incpath.c (add_standard_paths): Likewise.

2012-01-27  Richard Henderson  <rth@redhat.com>

	* config/m68k/m68k.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
	* config/m68k/sync.md (atomic_test_and_set): Rename from
	sync_test_and_setqi and adjust the operands.
	(atomic_test_and_set_1): Rename from sync_test_and_setqi_1
	and unconditionally enable.

2012-01-27  Richard Henderson  <rth@redhat.com>

	* config/sparc/sparc.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
	* config/sparc/sync.md (atomic_test_and_set): Only handle QImode.
	(ldstub): Rename from ldstubqi.
	(ldstub<I24MODE>): Remove.

2012-01-27  Richard Henderson  <rth@redhat.com>

	* target.def (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
	* c-cppbuiltin.c (cpp_atomic_builtins): Define
	__GCC_ATOMIC_TEST_AND_SET_TRUEVAL.
	* doc/tm.texi.in (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): Add doc hook.
	* doc/tm.texi: Rebuild.

2012-01-27  Richard Henderson  <rth@redhat.com>

	* optabs.c (gen_atomic_test_and_set): Remove default.
	(maybe_emit_atomic_test_and_set): Use maybe_expand_insn.

2012-01-26  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/51978
	* ree.c (make_defs_and_copies_lists): Change set_pat type to const_rtx.
	(combine_reaching_defs): Likewise.
	(struct re_info): Remove.
	(add_removable_extension): Remove x and data arguments,
	add insn, insn_list and def_map.  Use the arguments directly
	instead of using struct re_info.
	(find_removable_extensions): Don't call add_removable_extension
	through note_stores, instead just call it with single_set
	result if non-NULL.
	(find_and_remove_re): Pass curr_cand->expr instead of
	PATTERN (curr_cand->insn) as set_pat argument to combine_reaching_defs.

2012-01-26  Michael Matz  <matz@suse.de>

	PR tree-optimization/46590
	* cfgexpand.c: Revert last change (r183305).
	* gimplify.c (gimplify_bind_expr): Add clobbers for all non-gimple
	regs.
	* tree-eh.c (cleanup_empty_eh): Try to optimize clobbers before
	checking for emptiness.

2012-01-26  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/51895
	* expr.c (expand_expr_real_1): Handle BLKmode MEM_REF of
	non-addressable non-BLKmode base correctly.

2012-01-26  Michael Matz  <matz@suse.de>

	PR tree-optimization/48794
	* tree-eh.c (remove_unreachable_handlers_no_lp): Don't remove
	regions referenced from RESX/EH_DISPATCH.

2012-01-26  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/s390.h: Make BRANCH_COST an option.
	* config/s390/s390.opt: New option -mbranch-cost.

2012-01-26  Richard Henderson  <rth@redhat.com>

	Revert 2012-01-24 change:
	* trans-mem.c (requires_barrier): Do not instrument thread local
	variables and emit save/restore for them.

2012-01-25  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/51986
	* sched-deps.c (sched_get_condition_with_rev_uncached): Don't test
	for pat == 0.

2012-01-25  Richard Sandiford  <rdsandiford@googlemail.com>

	* config/mips/mips.c (mips_small_data_pattern_1): Don't process
	ASM_OPERANDS.

2012-01-25  Georg-Johann Lay  <avr@gjlay.de>

	PR target/49868
	Rename __pgm to __flash.
	Rename __pgm1 to __flash1.
	Rename __pgm2 to __flash2.
	Rename __pgm3 to __flash3.
	Rename __pgm4 to __flash4.
	Rename __pgm5 to __flash5.
	Rename __pgmx to __memx.
	* doc/extend.texi (AVR Named Address Spaces)
	Rename address space names as indicated above.
	* config/avr/avr.c (avr_addrspace): Ditto.

	* config/avr/avr-protos.h
	(avr_mem_pgmx_p): Rename to avr_mem_memx_p.
	(avr_mem_pgm_p): Rename to avr_mem_flash_p.
	* config/avr/predicates.md: Ditto.
	* config/avr/avr.c Ditto, and
	(avr_decl_pgmx_p): Rename to avr_decl_memx_p.
	(avr_decl_pgm_p): Rename to avr_decl_flash_p.

	* config/avr/avr.h (ADDR_SPACE_PGM): Rename to ADDR_SPACE_FLASH.
	(ADDR_SPACE_PGM1): Rename to ADDR_SPACE_FLASH1.
	(ADDR_SPACE_PGM2): Rename to ADDR_SPACE_FLASH2.
	(ADDR_SPACE_PGM3): Rename to ADDR_SPACE_FLASH3.
	(ADDR_SPACE_PGM4): Rename to ADDR_SPACE_FLASH4.
	(ADDR_SPACE_PGM5): Rename to ADDR_SPACE_FLASH5.
	(ADDR_SPACE_PGMX): Rename to ADDR_SPACE_MEMX.
	* config/avr/avr.c: Ditto.
	* config/avr/avr.md: Ditto.

2012-01-25  Jason Merrill  <jason@redhat.com>

	PR c++/51992
	* tree.c (find_decls_types_in_node): Walk gimple_call_fntype.

2012-01-25  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/51987
	* tree-data-ref.c (get_references_in_stmt): Handle references in
	non-volatile GIMPLE_ASM.

2012-01-25  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-sccvn.c (vn_reference_eq): Also compare if both
	bases are dereferenced.

2012-01-25  Andrey Belevantsev  <abel@ispras.ru>

	PR rtl-optimization/48374
	* sel-sched-ir.h (get_all_loop_exits): Check for zero successors.

2012-01-25  Andrey Belevantsev  <abel@ispras.ru>

	* tree-predcom.c (tree_predictive_commoning_loop): Bail out when
	compute_data_dependences_for_loop returns false.
	* tree-parloops.c (loop_parallel_p): Likewise.

2012-01-25  Richard Guenther  <rguenther@suse.de>

	* tree.h (get_pointer_alignment_1): Declare.
	* builtins.c (get_pointer_alignment_1): New function.
	(get_pointer_alignment): Use it.

2012-01-25  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

	PR rtl-optimization/48308
	* combine.c (enum undo_kind): Add UNDO_LINKS.
	(struct undo): Add member l to other_contents and where.
	(do_SUBST_LINK): New.
	(SUBST_LINK): New.
	(try_combine): Handle LOG_LINKS for the dummy i1 case.
	(undo_all): Handle UNDO_LINKS.

2012-01-25  Richard Henderson  <rth@redhat.com>

	* optabs.c (maybe_emit_atomic_test_and_set): Allow non-QImode
	mem inputs.

2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>

	* optabs.c (gen_atomic_test_and_set): Use each argument.

2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>

	* config/mips/mips-ps-3d.md (mips_addr_ps, reduc_splus_v2sf)
	(mips_cvt_pw_ps, mips_cvt_ps_pw, mips_mulr_ps, mips_cabs_cond_<fmt>)
	(mips_cabs_cond_4s, mips_cabs_cond_ps, bc1any4t, bc1any4f, bc1any2t)
	(bc1any2f, mips_rsqrt1_<fmt>, mips_rsqrt2_<fmt>, mips_recip1_<fmt>)
	(mips_recip2_<fmt>): Require TARGET_MIPS3D rather than
	TARGET_PAIRED_SINGLE_FLOAT.

2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>

	* doc/rtl.texi (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
	(in_struct, return_val): Remove MEM documentation.
	* rtl.h (rtx_def): Remove MEM meanings from in_struct and return_val.
	(MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
	(MEM_COPY_ATTRIBUTES): Remove references to MEM_IN_STRUCT_P
	and MEM_SCALAR.
	* emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
	* cfgexpand.c (add_alias_set_conflicts): Likewise.
	* expr.c (store_field): Likewise.
	* function.c (assign_stack_temp_for_type): Likewise.
	* ifcvt.c (noce_try_cmove_arith): Likewise.
	* reload1.c (reload): Likewise.
	* config/alpha/alpha.c (alpha_set_memflags_1): Likewise.
	(alpha_set_memflags): Likewise.
	* config/m32c/m32c.c (m32c_immd_dbl_mov): Nullify.

2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>

	* rtl.h (true_dependence, canon_true_dependence): Remove varies
	parameter.
	* alias.c (fixed_scalar_and_varying_struct_p): Delete.
	(true_dependence_1, write_dependence_p, may_alias_p): Don't call it.
	(true_dependence_1, true_dependence, canon_true_dependence): Remove
	varies parameter.
	* cselib.c (cselib_rtx_varies_p): Delete.
	(cselib_invalidate_mem): Update call to canon_true_dependence.
	* dse.c (record_store, check_mem_read_rtx): Likewise.
	(scan_reads_nospill): Likewise.
	* cse.c (check_dependence): Likewise.
	(cse_rtx_varies_p): Delete.
	* expr.c (safe_from_p): Update call to true_dependence.
	* ira.c (validate_equiv_mem_from_store): Likewise.
	(memref_referenced_p): Likewise.
	* postreload-gcse.c (find_mem_conflicts): Likewise.
	* sched-deps.c (sched_analyze_2): Likewise.
	* store-motion.c (load_kills_store): Likewise.
	* config/frv/frv.c (frv_registers_conflict_p_1): Likewise.
	* gcse.c (mems_conflict_for_gcse_p): Likewise.
	(compute_transp): Update call to canon_true_dependence.

2012-01-25  Richard Henderson  <rth@redhat.com>

	* optabs.c (CODE_FOR_atomic_test_and_set): Provide default.
	(maybe_emit_atomic_test_and_set): New.
	(expand_sync_lock_test_and_set): Use it.
	(expand_atomic_test_and_set): Likewise.
	* doc/extend.texi (__atomic_test_and_set): Adjust the docs to match
	the implementation; clarify implementation defined details.
	* doc/md.texi (atomic_test_and_set): Document.

2012-01-25  Richard Henderson  <rth@redhat.com>

	* config/sparc/predicates.md (zero_or_v7_operand): Use match_code.

2012-01-25  Richard Henderson  <rth@redhat.com>

	PR target/51968
	* config/arm/arm.c (neon_split_vcombine): Emit deleted note
	to effect no-op split.

2012-01-24  Aldy Hernandez  <aldyh@redhat.com>

	PR lto/51698
	* builtin-types.def: (BT_CONST_DOUBLE_PTR): New.
	(BT_FN_VOID_PTR_CONST_PTR_SIZE): New.
	(BT_FN_VOID_PTR_INT_SIZE): New.
	(BT_FN_UINT_UINT_VAR): Remove.
	(BT_FN_UINT32_UINT32_VAR): New.
	(BT_FN_DOUBLE_VPTR): Remove.
	(BT_FN_DOUBLE_CONST_DOUBLE_PTR): New.

	* gtm-builtins.def (_ITM_abortTransaction): Set return type to void.
	(_ITM_changeTransactionMode): Same.
	(_ITM_memmoveRtWt): Change return type to void.
	(_ITM_memcpyRtWt): Same.
	(_ITM_memsetW): Same.
	(_ITM_RaRD): Change types to double.
	(_ITM_RD): Same.
	(_ITM_RaWD): Same.
	(_ITM_RfWD): Same.

	* builtins.def (DEF_TM_BUILTIN): Set BOTH_P to true.

2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
	    Patrick Marlier  <patrick.marlier@gmail.com>

	* trans-mem.c (requires_barrier): Do not instrument thread local
	variables and emit save/restore for them.

2012-01-24  Jason Merrill  <jason@redhat.com>

	PR c++/51812
	* cgraphunit.c (cgraph_decide_is_function_needed): Don't always
	output static aliases.

2012-01-24  Jakub Jelinek  <jakub@redhat.com>

	PR driver/47249
	* common.opt (-pie, -shared, pie, shared): Change from Common to
	Driver.
	* gcc.c (display_help): Display help for -pie and -shared.

2012-01-24  Georg-Johann Lay  <avr@gjlay.de>

	PR target/49868
	* doc/extend.texi (AVR Named Address Spaces): Move sample code up.
	Remove note on size/offset limitation.
	(AVR Variable Attributes): Add example how to read data located
	with progmem.  Refer to named address spaces.
	* doc/invoke.texi (AVR Options): Fix typo.

2012-01-24  Richard Guenther  <rguenther@suse.de>

	Forward-port to trunk
	2010-09-21  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/45678
	* expr.c (expand_expr_real_1) <case VIEW_CONVERT_EXPR>: If
	op0 isn't sufficiently aligned and there is movmisalignM
	insn for mode, use it to load op0 into a temporary register.

2012-01-24  Jakub Jelinek  <jakub@redhat.com>

	PR target/51957
	* target.def (const_not_ok_for_debug_p): New hook.
	* doc/tm.texi.in (TARGET_CONST_NOT_OK_FOR_DEBUG_P): New hook
	documentation.
	* doc/tm.texi: Regenerated.
	* dwarf2out.c (const_ok_for_output_1): If
	targetm.const_not_ok_for_debug_p returns true, fail.
	* config/rs6000/rs6000.c (rs6000_const_not_ok_for_debug_p): New
	function.
	(TARGET_CONST_NOT_OK_FOR_DEBUG_P): Redefine.

2012-01-23  Kai Tietz  <ktietz@redhat.com>

	PR target/51900
	* config/i386/predicates.md (symbolic_operand): Allow
	UNSPEC_PCREL as PIC expression for lea.
	* config/i386/winnt.c (i386_pe_binds_local_p): Reworked.
	* config/i386/i386.c (ix86_delegitimize_address): Handle
	UNSPEC_PCREL for none-MEM, too.

2012-01-23  Aldy Hernandez  <aldyh@redhat.com>

	* trans-mem.c (ipa_tm_create_version): Set externally_visible.
	(ipa_tm_create_version_alias): Same.

2012-01-23  Uros Bizjak  <ubizjak@gmail.com>

	PR libitm/51830
	* builtin-types.def (BT_FN_UINT_UINT_VAR): New.
	* gtm-builtins.def (BUILT_IN_TM_START): Declare as BT_FN_UINT_UINT_VAR.

2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
	    Patrick Marlier  <patrick.marlier@gmail.com>
	    Iain Sandoe  <developer@sandoe-acoustics.co.uk>

	PR lto/51916
	* lto-wrapper.c (run_gcc): Pass the LTO section name to
	simple_object_start_read.

2012-01-23  Richard Guenther  <rguenther@suse.de>


	PR tree-optimization/51895
	* tree-sra.c (decide_one_param_reduction): Avoid sub-optimal
	parameter decomposition into BLKmode components.

2012-01-23  Eric Botcazou  <ebotcazou@adacore.com>

	* tree-ssa-structalias.c (intra_create_variable_infos): Do not create
	fake variables for restrict-qualified pointers whose pointed-to type
	contains a placeholder.

2012-01-23  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/51949
	* ipa-split.c (execute_split_functions): Do not split malloc functions.

2012-01-23  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/51933
	* ree.c (transform_ifelse): Return true right away if dstreg is
	already wider or equal to cand->mode.
	(enum ext_modified_kind, struct ext_modified, ext_state): New types.
	(make_defs_and_copies_lists): Remove defs_list and copies_list
	arguments, add state argument, just truncate state->work_list
	instead of always allocating and freeing the vector.  Assert that
	get_defs succeeds instead of returning 2.  Changed return type to bool.
	(merge_def_and_ext): Add state argument.  If SET_DEST doesn't
	have ext_src_mode, see if it has been modified already with the
	right kind of extension and has been extended before from the
	ext_src_mode.  If SET_DEST is already wider or equal to cand->mode,
	just return true.  Remember the original mode in state->modified array.
	(combine_reaching_defs): Add state argument.  Don't allocate and
	free here def_list, copied_list and vec vectors, instead just
	VEC_truncate the vectors in *state.  Don't handle outcome == 2 here.
	(find_and_remove_re): Set DF_DEFER_INSN_RESCAN df flag.
	Add state variable, clear vectors in it, initialize state.modified
	if needed.  Free all the vectors at the end and state.modified too.
	Don't skip a candidate if the extension expression has been modified.

2012-01-22  Douglas B Rupp  <rupp@gnat.com>

	PR target/47096
	* config.gcc: (i[34567]86-*-interix3*): Remove from obsolete
	 configurations. Change triplet to i[34567]86-*-interix[3-9]*.
	(extra_options) interix.opt -> i386/interix.opt"
	(extra_objs):Add winnt-stubs.o
	* configure.ac: Add interix to target_os .comm on PE check.
	* configure: Regenerate.
	* config/interix3.h: Delete and move bits to..
	* config/interix.h: Delete and move bits to..
	* config/i386/i386-interix3.h: Delete and move bits to..
	* config/i386/i386-interix.h: ..here.
	(TARGET_CPU_DEFAULT): Remove redefinition.
	(TARGET_ASM_CONSTRUCTOR): Undefine.
	(SUBTARGET_SWITCHES): Define for ms-bitfields.
	(TARGET_OS_CPP_BUILTINS): Remove __OPENNT. Add __declspec.
	(PTRDIFF_TYPE): Define.
	(LONG_DOUBLE_TYPE_SIZE): Define.
	(LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define.
	(SUBTARGET_OVERRIDE_OPTIONS): Remove.
	(TARGET_SECTION_TYPE_FLAGS): Define.
	(ASM_DECLARE_FUNCTION_NAME): Define.
	(ASM_OUTPUT_EXTERNAL): Define.
	(ASM_OUTPUT_EXTERNAL_LIBCALL): Define.
	(ASM_OUTPUT_ALIGNED_BSS): Define.
	(PCC_BITFIELD_TYPE_MATTERS): Define.
	(USE_CONST_SECTION): Define.
	(SUBTARGET_ENCODE_SECTION_INFO): Remove.
	(TARGET_ASM_FUNCTION_RODATA_SECTION): Remove.
	(SUPPORTS_ONE_ONLY): Remove.
	(I386_PE_STRIP_ENCODING): Define.
	* config/interix.opt: Delete and move bits to..
	* config/i386/interix.opt: ..here. New.
	(mpe-aligned-commons): Add.
	* config/i386/t-interix: Add copyright header.
	(winnt-stubs.o): Add rule.

2012-01-22  Jason Merrill  <jason@redhat.com>

	PR c++/51832
	* varpool.c (varpool_analyze_pending_decls): Copy DECL_EXTERNAL
	for extra name aliases.

2012-01-22  Eric Botcazou  <ebotcazou@adacore.com>

	PR rtl-optimization/51924
	* ree.c (combine_set_extension): Improve debugging message.
	(combine_reaching_defs): Likewise.
	(get_defs): Rename confusingly named variable.
	(find_and_remove_re): Skip a candidate if the extension expression has
	been modified.

2012-01-21  Robert Millan  <rmh@gnu.org>
	    Gerald Pfeifer  <gerald@pfeifer.com>

	* config/kfreebsd-gnu.h (GNU_USER_DYNAMIC_LINKERX32): New macro.
	(GNU_USER_DYNAMIC_LINKER): Adjust indentation.

2012-01-20  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/51914
	* tree-vect-stmts.c (vectorizable_conversion): For
	cvt_type && modifier == WIDEN, put temporary with cvt_type
	at the beginning of vec_dsts and set vec_dest to temporary
	with vectype_out.

2012-01-20  Eric Botcazou  <ebotcazou@adacore.com>

	* cfgrtl.c (rtl_dump_bb): Do not dump insns for {ENTRY|EXIT}_BLOCK.

2011-01-20  Tijl Coosemans  <tijl@coosemans.org>

	* config/i386/i386.c: Fix checks for !TARGET_MACHO.
	* config/rs6000/rs6000.c: Likewise.

2012-01-20  Jakub Jelinek  <jakub@redhat.com>

	PR target/51915
	* config/arm/arm.c (arm_count_output_move_double_insns): Call
	output_move_double on a copy of operands array.

2012-01-20  Cary Coutant  <ccoutant@google.com>
	    Dodji Seketeli  <dodji@redhat.com>

	PR debug/45682
	* dwarf2out.c (copy_declaration_context): Return ref to parent
	of declaration DIE, if necessary.
	(remove_child_or_replace_with_skeleton): Add new parameter; update
	caller.  Place skeleton DIE under parent DIE of original declaration.
	Move call to copy_declaration_context to here ...
	(break_out_comdat_types): ... from here.

2012-01-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	PR rtl-optimization/51856
	* reload.c (find_reloads_subreg_address): Set the address_reloaded
	flag to reloaded.

2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

	PR target/51819
	* config/arm/arm.c (arm_print_operand): Correct output of alignment
	hints for neon loads and stores.

2012-01-20  Georg-Johann Lay  <avr@gjlay.de>

	PR target/49868
	PR target/50887
	* doc/extend.texi (Named Address Spaces): Split into subsections.
	(AVR Named Address Spaces): New subsection.
	(M32C Named Address Spaces): New subsection.
	(RL78 Named Address Spaces): New subsection.
	(SPU Named Address Spaces): New subsection.
	(Variable Attributes): New anchor "AVR Variable Attributes".
	(AVR Variable Attributes): Rewrite and avoid wording
	"address space" in this context.
	* doc/invoke.texi (AVR Options): Rewrite and add documentation
	for -maccumulate-args, -mbranch-cost=, -mrelax, -mshort-calls.
	(AVR Built-in Macros): New subsubsection therein.
	* doc/md.texi (AVR constraints): Remove "C04", "R".

2012-01-20  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/51903
	* tree-ssa-pre.c (eliminate): Properly purging of EH edges
	when removing stmts.

2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

	PR target/50313
	* config/arm/arm.c (arm_load_pic_register): Use
	gen_pic_load_addr_unified. Delete calls to gen_pic_load_addr_32bit
	, gen_pic_add_dot_plus_eight and gen_pic_add_dot_plus_four.
	(arm_pic_static_addr): Likewise.
	(arm_rtx_costs_1): Adjust cost for UNSPEC_PIC_UNIFIED.
	(arm_note_pic_base): Handle UNSPEC_PIC_UNIFIED.
	* config/arm/arm.md (UNSPEC_PIC_UNIFIED): Define.
	(pic_load_addr_unified): New.

2012-01-20  Andrey Belevantsev  <abel@ispras.ru>

	PR target/51106
	* function.c (instantiate_virtual_regs_in_insn): Use
	delete_insn_and_edges when removing a wrong asm insn.

2012-01-19  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/40761
	* ira-int.h (struct ira_loop_tree_node): Add comment for member loop.
	Add new member loop_num.
	(IRA_LOOP_NODE_BY_INDEX): Modify the check.
	(ira_build): Remove the parameter.

	* ira.c (ira_print_disposition): Use loop_num instead of loop->num.
	(ira.c): Do not build CFG loops for one region allocation.  Remove
	argument from ira_build call.

	* ira-build.c (init_loop_tree_node): New function.
	(create_loop_tree_nodes): Use it.  Separate the case when CFG
	loops are not built.
	(more_one_region_p): Check current_loops.
	(finish_loop_tree_nodes): Separate the case when CFG loops are not
	built.
	(add_loop_to_tree): Process loop equal to NULL too.
	(form_loop_tree): Separate the case when CFG loops are not built.
	Use explicitly number for the root.
	(rebuild_regno_allocno_maps, create_loop_tree_node_allocnos): Add
	an assertion.
	(ira_print_expanded_allocno, loop_compare_func): Use loop_num
	instead of loop->num.
	(mark_loops_for_removal): Ditto.  Use loop_num instead of loop->num.
	(mark_all_loops_for_removal): Ditto.
	(remove_unnecessary_regions): Separate the case when CFG loops
	are not built.
	(ira_build): Remove the parameter.  Use explicit number of regions
	when CFG loops are not built.

	* ira-color.c (print_loop_title): Separate the case for the root node.
	Use loop_num instead of loop->num.
	(move_spill_restore): Use loop_num instead of loop->num.

	* ira-emit.c (setup_entered_from_non_parent_p): Add an assertion.
	(change_loop): Ditto.
	(change_loop): Use loop_num instead of loop->num.

	* ira-lives.c (process_bb_node_lives): Ditto.

	* ira-costs.c (print_allocno_costs, find_costs_and_classes): Ditto.

	* ira-conflicts.c (print_allocno_conflicts): Ditto.

2012-01-19  Jakub Jelinek  <jakub@redhat.com>

	PR libmudflap/40778
	* tree-mudflap.c (mf_artificial): New function.
	(execute_mudflap_function_ops, execute_mudflap_function_decls,
	mx_register_decls, mudflap_enqueue_decl): Use it.

	PR target/51876
	* config/arm/neon.md (*neon_vswp<mode>): Fix up operand
	numbers in the insn pattern.

2012-01-19  Michael Matz  <matz@suse.de>

	PR tree-optimization/46590
	* cfgexpand.c (add_scope_conflicts_1): New old_conflicts argument,
	use it in remembering which conflicts we already created.
	(add_scope_conflicts): Adjust call to above, (de)allocate helper
	bitmap.

2012-01-19  Aldy Hernandez  <aldyh@redhat.com>

	PR lto/51280
	* lto-wrapper.c (run_gcc): Pass -fgnu_tm on.
	(merge_and_complain): Same.

2012-01-19  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/50237
	* config/initfini-array.h: Guard content of the header
	with #ifdef HAVE_INITFINI_ARRAY.
	* configure.ac: Move gcc_AC_INITFINI_ARRAY much later into the file.
	Add initfini-array.h to tm_file here.
	* acinclude.m4 (gcc_AC_INITFINI_ARRAY): For non-ia64 do a linker test.
	* config.gcc: Don't add initfini-array.h to tm_file here.
	* configure: Regenerated.

2012-01-19  Andrey Belevantsev  <abel@ispras.ru>

	PR rtl-optimization/51505
	* df-problems.c (df_kill_notes): New parameter live. Update comment.
	Remove REG_EQUAL/REG_EQUIV notes referring to dead registers.
	(df_note_bb_compute): Update the call to df_kill_notes.

2012-01-18  Aldy Hernandez  <aldyh@redhat.com>

	* trans-mem.c (requires_barrier): Remove call to is_global_var.

2012-01-18  Richard Guenther  <rguenther@suse.de>

	* tree-ssa.c (useless_type_conversion_p): Remove special-casing
	of conversions to void *.

2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
	    Richard Sandiford  <rdsandiford@googlemail.com>

	PR middle-end/50325
	PR middle-end/51192
	* optabs.h (simplify_expand_binop): Declare.
	* optabs.c (simplify_expand_binop): Make global.
	* expmed.c (store_bit_field_1): Use simplify_expand_binop on big
	endian targets if the source cannot be exactly covered by word
	mode chunks.

2012-01-17  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/51872
	* hard-reg-set.h (struct hard_reg_set_container): New type.
	* target.h (struct hard_reg_set_container): Forward declare.
	* target.def (set_up_by_prologue): New target hook.
	* doc/tm.texi.in (TARGET_SET_UP_BY_PROLOGUE): Document it.
	* doc/tm.texi: Regenerated.
	* function.c (thread_prologue_and_epilogue_insns): Change
	set_up_by_prologue HARD_REG_SET into struct hard_reg_set_container.
	Call targetm.set_up_by_prologue on it.
	* config/rs6000/rs6000.c (rs6000_set_up_by_prologue): New function.
	(TARGET_SET_UP_BY_PROLOGUE): Redefine to it.

2012-01-17  Nick Clifton  <nickc@redhat.com>

	* config/rx/rx.c (rx_can_use_simple_return): New function.
	* config/rx/rx-protos.h (rx_can_use_simple_return): Prototype.
	* config/rx/rx.md (return): Predicate on rx_can_use_simple_return.

2012-01-17  Richard Guenther  <rguenther@suse.de>

	PR middle-end/51782
	* expr.c (expand_assignment): Take address-space information
	from the address operand of MEM_REF and TARGET_MEM_REF.
	(expand_expr_real_1): Likewise.

2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* ira.c (do_reload): Make sure ira_dump_file is re-set if no
	reload dump is requested.

2012-01-17  Aldy Hernandez  <aldyh@redhat.com>

	PR other/51165
	* trans-mem.c (requires_barrier): Call may_be_aliased.

2012-01-17  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/51877
	* tree-ssa-tail-merge.c (gimple_equal_p): Don't return true whenever
	call arguments and fndecls compare equal, instead return false if they
	don't.  Return true only if lhs1 and lhs2 are either both NULL, or
	both SSA_NAMEs that are valueized the same, or they satisfy
	operand_equal_p.

2012-01-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* configure.ac (gcc_cv_target_dl_iterate_phdr): Only check on
	Solaris 11+.
	* configure: Regenerate.

2012-01-16  Jan Hubicka  <jh@suse.cz>

	PR c/12245
	PR c++/14179
	* convert.c (convert_to_integer): Use fold_convert for
	converting an INTEGER_CST to integer type.

2012-01-16  Jason Merrill  <jason@redhat.com>

	PR c++/14179
	* vec.c (vec_gc_o_reserve_1): Use ggc_round_alloc_size.

2012-01-16  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/51860
	* config/s390/s390.c (s390_chunkify_start): Don't skip
	call insns followed by NOTE_INSN_CALL_ARG_LOCATION note.  Skip
	NOTE_INSN_VAR_LOCATION and NOTE_INSN_CALL_ARG_LOCATION notes.
	If insn is followed by NOTE_INSN_VAR_LOCATION or
	NOTE_INSN_CALL_ARG_LOCATION notes, insert jump after all those notes.
	Don't use location of note insns.

	PR tree-optimization/51865
	* tree-inline.c (tree_function_versioning): Call remap_decl
	on DECL_RESULT whenever it has VOID_TYPE_P type.

2012-01-15  Richard Sandiford  <rdsandiford@googlemail.com>

	* config/mips/mips.c (mips16_build_call_stub): Don't use a stub
	for calls to locally-binding MIPS16 functions if only the return
	type uses float regs.

2012-01-15  Chung-Lin Tang  <cltang@codesourcery.com>
	    Richard Sandiford  <rdsandiford@googlemail.com>

	* config/mips/mips-protos.h (SYMBOL_FORCE_TO_MEM): Delete.
	(SYMBOL_32_HIGH): Likewise.
	(mips_output_tls_reloc_directive): Declare.
	* config/mips/mips.h (PIC_FUNCTION_ADDR_REGNUM): Move to mips.md.
	(mips_use_pcrel_pool_p, mips_lo_relocs, mips_hi_relocs): Declare.
	* config/mips/mips.c (mips_use_pcrel_pool_p): New variable.
	(mips_lo_relocs, mips_hi_relocs): Make extern.
	(mips16_stub_function): Move up file.
	(mips_classify_symbol): Remove SYMBOL_FORCE_TO_MEM handling.
	(mips_symbolic_constant_p): Likewise.  Remove SYMBOL_32_HIGH too.
	(mips_symbol_insns_1): Likewise.  Check mips_use_pcrel_pool_p.
	(mips_cannot_force_const_mem): Use mips_use_pcrel_pool_p instead of
	SYMBOL_FORCE_TO_MEM.  Only check mips_tls_symbol_ref_1 if it's false.
	(mips_get_tp): Add MIPS16 support.
	(mips_legitimize_tls_address): Remove MIPS16 sorry().
	Generalize DTPREL and TPREL handling.
	(mips_init_relocs): Initialize mips_use_pcrel_pool_p.
	Add MIPS16 TLS support.
	(mips_output_tls_reloc_directive): New function.
	(mips16_rewrite_pool_refs): Ignore UNSPEC_TLS_GET_TPs.
	* config/mips/predicates.md (symbolic_operand_with_high)
	(tls_reloc_operand): New predicates.
	(force_to_mem_operand): Use mips_use_pcrel_pool_p.
	* config/mips/mips.md (UNSPEC_UNSHIFTED_HIGH): New unspec.
	(PIC_FUNCTION_ADDR_REGNUM): Moved from mips.h.
	(*unshifted_high): New instruction.  Use it for MIPS16 high splitter.
	(consttable_tls_reloc, tls_get_tp_mips16_<mode>): New patterns.
	(*tls_get_tp_mips16_call_<mode>): Likewise.

2012-01-15  Uros Bizjak  <ubizjak@gmail.com>

	PR rtl-optimization/51821
	* recog.c (peep2_find_free_register): Determine clobbered registers
	from insn pattern.

2012-01-14  Denis Chertykov  <chertykov@gmail.com>

	PR target/50925
	* config/avr/avr-protos.h: Revert change of 2012-01-09.
	* config/avr/avr.c: Likewise.
	* config/avr/avr.h: Likewise.

2012-01-13  Ian Lance Taylor  <iant@google.com>

	PR c++/50012
	* tree.h (TYPE_QUALS): Add cast to int.
	(TYPE_QUALS_NO_ADDR_SPACE): Likewise.

2012-01-13  Ian Lance Taylor  <iant@google.com>

	* ipa-cp.c (ipa_get_indirect_edge_target): Add typecasts when
	comparing param_index to VEC_length result.

2012-01-13  Steven Bosscher  <steven@gcc.gnu.org>

	* c-decl.c: Do not include tree-mudflap.h
	* tree-optimize.c: Likewise.
	* Makefile.in: Update dependencies.

2012-01-13  Richard Guenther  <rguenther@suse.de>

	PR middle-end/8081
	* gimplify.c (gimplify_modify_expr_rhs): For calls with a
	variable-sized result always use RSO.

2012-01-12  DJ Delorie  <dj@redhat.com>

	* cfgexpand.c (convert_debug_memory_address): Allow any valid
	pointer type, not just the default pointer type.

2012-01-09  Richard Henderson  <rth@redhat.com>
	    Denis Chertykov  <chertykov@gmail.com>

	PR target/50925
	* config/avr/avr-protos.h (avr_hard_regno_nregs): Declare.
	* config/avr/avr.c (avr_can_eliminate): Simplify.
	(avr_initial_elimination_offset): Likewise.
	(avr_prologue_setup_frame): Use hard_frame_pointer_rtx.
	(expand_epilogue): Likewise.
	(avr_legitimize_address): Gut.
	(avr_legitimize_reload_address): Use hard_frame_pointer_rtx.
	(avr_hard_regno_nregs): New.
	(avr_hard_regno_ok): Allow only Pmode for arg and frame_pointers.
	(avr_regno_mode_code_ok_for_base_b): Handle arg and frame pointers.
	* config/avr/avr.h (FIXED_REGISTERS): Adjust arg pointer,
	add soft frame pointer.
	(CALL_USED_REGISTERS): Likewise.
	(REG_CLASS_CONTENTS): Likewise.
	(REGISTER_NAMES): Likewise.
	(HARD_REGNO_NREGS): Use avr_hard_regno_nregs.
	(HARD_FRAME_POINTER_REGNUM): New.
	(FRAME_POINTER_REGNUM): Use soft frame pointer.
	(ELIMINABLE_REGS): Eliminate from the soft frame pointer,
	remove the HARD_FRAME_POINTER self-elimination.

2012-01-12  Georg-Johann Lay  <avr@gjlay.de>

	PR target/51756
	* config/avr/avr.c (avr_encode_section_info): Test for absence of
	DECL_EXTERNAL when checking for initializers of progmem variables.

2012-01-12  Ira Rosen  <irar@il.ibm.com>

	PR tree-optimization/51799
	* tree-vect-patterns.c (vect_recog_over_widening_pattern): Check
	that the last operation is a type demotion.

2012-01-12  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.md (*zero_extendsidi2_rex64): Correct movl template.
	(x86_shift<mode>_adj_1): Remove operand constraint from operand 3.

2012-01-11  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/51796
	* combine.c (distribute_notes): If i3 is a noreturn call,
	allow old_size to be equal to args_size and make sure the
	noreturn call gets REG_ARGS_SIZE note.
	* expr.c (fixup_args_size_notes): Put REG_ARGS_SIZE notes
	on noreturn calls even when the delta is 0.

2012-01-11  Nathan Sidwell  <nathan@acm.org>

	* gcov.c (STRING_SIZE): Remove.
	(generate_results): Erase annotations for source files with no
	coverage information.
	(read_line): New.
	(output_lines): Use it.

2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>

	* gimple.h (gimplify_body): Remove first argument.
	* gimplify.c (copy_if_shared): Add DATA argument.  Do not create the
	pointer set here, instead just pass DATA to walk_tree.
	(unshare_body): Remove BODY_P argument and adjust.  Create the pointer
	set here and invoke copy_if_shared on the size trees of DECL_RESULT.
	(unvisit_body): Likewise, but with unmark_visited.
	(gimplify_body): Remove BODY_P argument and adjust.
	(gimplify_function_tree): Adjust call to gimplify_body.
	* omp-low.c (finalize_task_copyfn): Likewise.

2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>

	* tree.h (build_function_decl_skip_args): Add boolean parameter.
	(build_function_type_skip_args): Delete.
	* tree.c (build_function_type_skip_args): Make static and add
	SKIP_RETURN parameter.  Fix thinko in the handling of variants.
	(build_function_decl_skip_args): Add SKIP_RETURN parameter and
	pass it to build_function_type_skip_args.
	* cgraph.h (cgraph_function_versioning): Add boolean parameter.
	(tree_function_versioning): Likewise.
	* cgraph.c (cgraph_create_virtual_clone): Adjust call to
	build_function_decl_skip_args.
	* cgraphunit.c (cgraph_function_versioning): Add SKIP_RETURN parameter
	and pass it to build_function_decl_skip_args/tree_function_versioning.
	(cgraph_materialize_clone): Adjust call to tree_function_versioning.
	* ipa-inline-transform.c (save_inline_function_body): Likewise.
	* trans-mem.c (ipa_tm_create_version): Likewise.
	* tree-sra.c (modify_function): Ditto for cgraph_function_versioning.
	* tree-inline.c (declare_return_variable): Remove always-true test.
	(tree_function_versioning): Add SKIP_RETURN parameter.  If the function
	returns non-void and SKIP_RETURN, create a void-typed RESULT_DECL.
	* ipa-split.c (split_function): Skip the return value for the split
	part if it doesn't return.

2012-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR tree-optimization/49642
	* ipa-split.c (forbidden_dominators): New variable.
	(check_forbidden_calls): New function.
	(dominated_by_forbidden): Likewise.
	(consider_split): Check for forbidden dominators.
	(execute_split_functions): Initialize and free forbidden
	dominators info; call check_forbidden_calls.

2012-01-11  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

	* config/arm/arm.md (mov_notscc): Use MVN for false condition.

2012-01-11  Nick Clifton  <nickc@redhat.com>

	* config/rx/rx.md (return): Define pattern.

2012-01-11  Richard Guenther  <rguenther@suse.de>

	* doc/extend.texi (malloc attribute): Adjust according to
	implementation.

2012-01-10  Aldy Hernandez  <aldyh@redhat.com>
	    Patrick Marlier  <patrick.marlier@gmail.com>

	PR middle-end/51516
	* trans-mem.c (get_cg_data): Traverse aliases if requested.
	(ipa_tm_scan_calls_block): Update parameters to get_cg_data.
	(ipa_tm_note_irrevocable): Same.
	(ipa_tm_scan_irr_block): Same.
	(ipa_tm_decrement_clone_counts): Same.
	(ipa_tm_scan_irr_function): Same.
	(ipa_tm_create_version_alias): Same.
	(ipa_tm_create_version): Same.
	(ipa_tm_transform_calls_redirect): Same.
	(ipa_tm_transform_calls): Same.
	(ipa_tm_transform_transaction): Same.
	(ipa_tm_execute): Same.

2012-01-10  Richard Guenther  <rguenther@suse.de>

	PR middle-end/51806
	* opts.c (common_handle_option): Handle -Werror.

2012-01-10  Andreas Schwab  <schwab@linux-m68k.org>

	* config/m68k/sync.md ("atomic_compare_and_swap<mode>_1"): Fix
	operand number.

2012-01-10  Jason Merrill  <jason@redhat.com>

	* doc/invoke.texi (C++ Dialect Options): Update -fabi-version=6
	information.

2012-01-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* configure.ac (gcc_cv_as_ix86_tlsgdplt): Check if linker
	supports R_386_TLS_GD_PLT reloc.
	(gcc_cv_as_ix86_tlsldmplt): Check if linker
	supports R_386_TLS_LDM_PLT reloc.
	* configure: Regenerate.
	* config.in: Regenerate.

2012-01-10  Georg-Johann Lay  <avr@gjlay.de>

	PR target/49868
	Extend __pgmx semantics to linearize memory.
	* config/avr/avr.md (mov<mode>): Use avr_xload_libgcc_p to
	determine if code comes inline or from libgcc.
	(MOVMEM_r_d:HI): Add "w" to constraint for better preference.
	(movmem_qi, movmem_qi): Set constraint #2 to "n".
	(movmem_qi_elpm, movmem_hi_elpm): Remove insns.
	(movmemx_qi, movmemx_hi): New insns.
	(xload_<mode>_libgcc): Rewrite to new insn condition.
	(xload_<mode>): Remove insns.
	* config/avr/avr.c (avr_out_xload): Rewrite: Only need to handle
	cases that don't satisfy avr_xload_libgcc_p().
	(avr_addr_space_convert): Allow converting in any direction.
	(avr_addr_space_subset_p): Return always true.
	(avr_xload_libgcc_p): Rewrite to fit new __pgmx semantics.
	(avr_emit_movmemhi): Ditto.
	(avr_out_lpm): No need to handle ADDR_SPACE_PGMX any more.
	(avr_out_movmem): Ditto.
	(AVR_SYMBOL_FLAG_PROGMEM): New macro.
	(AVR_SYMBOL_SET_ADDR_SPACE): New macro.
	(AVR_SYMBOL_GET_ADDR_SPACE): New macro.
	(avr_encode_section_info): Encode 'progmem' in symbol flags.
	(output_reload_in_const): Don't zero-extend any 24-bit symbols.

2012-01-10  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/50913
	* graphite-scop-detection.c (stmt_has_simple_data_refs_p):
	Require data-refs to be representable by Graphite with respect
	to any loop nest.

2012-01-10  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/constraints.md ("L"): Return true for 0xffffffff.
	* config/i386/i386.c (*anddi_1): Emit AND with 0xffffffff as MOV.

2012-01-10  Tom de Vries  <tom@codesourcery.com>

	PR rtl-optimization/51271
	* dwarf2cfi.c (scan_trace): Save and restore cur_row->reg_save when
	handling annulled branch.

2012-01-10  Richard Henderson  <rth@redhat.com>

	* config/arm/arm.c (arm_vectorize_vec_perm_const_ok,
	TARGET_VECTORIZE_VEC_PERM_CONST_OK, neon_split_vcombine, MAX_VECT_LEN,
	struct expand_vec_perm_d, arm_expand_vec_perm_1, arm_expand_vec_perm,
	arm_evpc_neon_vuzp, arm_evpc_neon_vzip, arm_evpc_neon_vrev,
	arm_evpc_neon_vtrn, arm_evpc_neon_vtbl, arm_expand_vec_perm_const_1,
	arm_expand_vec_perm_const): New.
	* config/arm/arm-protos.h: Update.
	* config/arm/neon.md (UNSPEC_VCONCAT): New.
	(*neon_vswp<VDQX>): New.
	(neon_vcombine<VDX>): Use neon_split_vcombine.
	(neon_vtbl1v16qi, neon_vtbl2v16qi, neon_vcombinev16qi): New.
	* config/arm/vec-common.md (vec_perm_const<VALL>): New.
	(vec_perm<VE>): New.

2012-01-10  Richard Henderson  <rth@redhat.com>

	* config/arm/arm.c (arm_gen_compare_reg): Add scratch argument;
	use it if reload_completed.
	(arm_legitimize_sync_memory, arm_emit, arm_insn_count, arm_count,
	arm_output_asm_insn, arm_process_output_memory_barrier,
	arm_output_memory_barrier, arm_ldrex_suffix, arm_output_ldrex,
	arm_output_strex, arm_output_it, arm_output_op2, arm_output_op3,
	arm_output_sync_loop, arm_get_sync_operand, FETCH_SYNC_OPERAND,
	arm_process_output_sync_insn, arm_output_sync_insn,
	arm_sync_loop_insns, arm_call_generator, arm_expand_sync): Remove.
	(arm_pre_atomic_barrier, arm_post_atomic_barrier): New.
	(arm_emit_load_exclusive, arm_emit_store_exclusive): New.
	(emit_unlikely_jump): New.
	(arm_expand_compare_and_swap, arm_split_compare_and_swap): New.
	(arm_split_atomic_op): New.
	* config/arm/arm-protos.h: Update.
	* config/arm/arm.h (enum arm_sync_generator_tag): Remove.
	(struct arm_sync_generator): Remove.
	* config/arm/arm.md (VUNSPEC_SYNC_COMPARE_AND_SWAP, VUNSPEC_SYNC_LOCK,
	VUNSPEC_SYNC_OP, VUNSPEC_SYNC_NEW_OP, VUNSPEC_SYNC_OLD_OP): Remove.
	(VUNSPEC_ATOMIC_CAS, VUNSPEC_ATOMIC_XCHG, VUNSPEC_ATOMIC_OP): New.
	(VUNSPEC_LL, VUNSPEC_SC): New.
	(sync_result, sync_memory, sync_required_value, sync_new_value,
	sync_t1, sync_t2, sync_release_barrier, sync_op): Remove.
	(attr length): Don't use arm_sync_loop_insns.
	(cbranch_cc, cstore_cc): Update call to arm_gen_compare_reg.
	(movsfcc, movdfcc): Likewise.
	* config/arm/constraints.md (Ua): New.
	* config/arm/prediates.md (mem_noofs_operand): New.
	(sync_compare_and_swap<QHSD>, sync_lock_test_and_set<QHSD>): Remove.
	(sync_clobber, sync_t2_reqd): Remove.
	(sync_<syncop><QHSD>, sync_nand<QHSD>): Remove.
	(sync_new_<syncop><QHSD>, sync_new_nand<QHSD>): Remove.
	(sync_old_<syncop><QHSD>, sync_old_nand<QHSD>): Remove.
	(arm_sync_compare_and_swap<SIDI>): Remove.
	(arm_sync_compare_and_swap<NARROW>): Remove.
	(arm_sync_lock_test_and_set<SIDI>): Remove.
	(arm_sync_lock_test_and_set<NARROW>): Remove.
	(arm_sync_new_<syncop><SIDI>): Remove.
	(arm_sync_new_<syncop><NARROW>): Remove.
	(arm_sync_new_nand<SIDI>): Remove.
	(arm_sync_new_nand<NARROW>): Remove.
	(arm_sync_old_<syncop><SIDI>): Remove.
	(arm_sync_old_<syncop><NARROW>): Remove.
	(arm_sync_old_nand<SIDI>): Remove.
	(arm_sync_old_nand<NARROW>): Remove.
	(*memory_barrier): Merge arm_output_memory_barrier.
	(atomic_compare_and_swap<QHSD>): New.
	(atomic_compare_and_swap<NARROW>_1): New.
	(atomic_compare_and_swap<SIDI>_1): New.
	(atomic_exchange<QHSD>): New.
	(cas_cmp_operand, cas_cmp_str): New.
	(atomic_op_operand, atomic_op_str): New.
	(atomic_<syncop><QHSD>, atomic_nand<QHSD>): New.
	(atomic_fetch_<syncop><QHSD>, atomic_fetch_nand<QHSD>): New.
	(atomic_<syncop>_fetch<QHSD>, atomic_nand_fetch<QHSD>): New.
	(arm_load_exclusive<NARROW>): New.
	(arm_load_exclusivesi, arm_load_exclusivedi): New.
	(arm_store_exclusive<QHSD>): New.

2012-01-09  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Add DF
	reload patterns if -mvsx-scalar-memory.

	* config/rs6000/vsx.md (vsx_xscvspdp): Allow xscvspdp to be
	generated, even -mno-vsx-scalar-double was used.
	(vsx_xscvdpsp_scalar): Likewise.
	(vsx_xscvspdp_scalar2): Likewise.

2012-01-09  Tom de Vries  <tom@codesourcery.com>
	    Andrew Pinski  <apinski@cavium.com>

	PR debug/51471
	* reorg.c (fill_slots_from_thread): Don't speculate
	frame-related insns.

2012-01-09  Richard Sandiford  <rdsandiford@googlemail.com>

	* sched-int.h (bb_note): Move to...
	* basic-block.h: ...here.
	* haifa-sched.c (bb_note): Move to...
	* cfgrtl.c: ...here.
	* function.c (next_block_for_reg): New function.
	(move_insn_for_shrink_wrap): Likewise.
	(prepare_shrink_wrap): Rewrite to use the above.

2012-01-09  Aldy Hernandez  <aldyh@redhat.com>

	* gimple.c (is_gimple_non_addressable): Remove.
	* gimple.h: Remove is_gimple_non_addressable.
	* gimplify.c (gimplify_modify_expr_rhs): Use is_gimple_reg instead of
	is_gimple_non_addressable.
	* trans-mem.c (expand_assign_tm): Same.

2012-01-09  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/51775
	* tree-ssa-sccvn.c (visit_use): Value-number throwing stmts.
	* tree-ssa-pre.c (eliminate): Properly fixup EH info.

2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

	* config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
	tuning parameters.
	* config/arm/arm.c (arm_cortex_a15_tune): New static variable.

2012-01-09  Richard Guenther  <rguenther@suse.de>

	* tree-streamer-out.c (write_ts_optimization): Fix spelling.

2012-01-08  Jan Hubicka  <jh@suse.cz>

	PR tree-optimize/51680
	* ipa-inline-analyss.c (evaluate_properties_for_edge): Fix condition
	on when known_vals needs to be computed; cleanup.

2012-01-08  Jan Hubicka  <jh@suse.cz>

	PR tree-optimize/51694
	* ipa-cp.c (ipa_get_indirect_edge_target): Add bounds checks.

2012-01-08  Jonathan Wakely  <jwakely.gcc@gmail.com>

	* doc/cpp.texi (Predefined Macros): __STRICT_ANSI__ is defined
	for -std=c++98 and -std=c++11 too.

2012-01-08  Chung-Lin Tang  <cltang@codesourcery.com>

	* cfgloop.c (cancel_loop): Add free() of bbs array.

2012-01-07  Jan Hubicka  <jh@suse.cz>

	PR tree-optimization/51600
	* ipa-inline-analysis.c (estimate_edge_devirt_benefit): Disable code
	that benefits small functions.

2012-01-07  Jan Hubicka  <jh@suse.cz>

	* ipa-inline.c (want_inline_small_function_p): Fix formating.

2012-01-07  Jan Hubicka  <jh@suse.cz>

	PR tree-optimization/51680
	* ipa-inline.c (want_inline_small_function_p): Be more lax on functions
	whose inlining reduce unit size.

2012-01-07  Alexandre Oliva  <aoliva@redhat.com>

	PR bootstrap/51725
	* cselib.c (new_elt_loc_list): Promote addr_list to canonical node.
	Add canonical node to containing_mem chain after the non-canonical
	one, even if there weren't any locs to propagate.
	(remove_useless_values): Keep only canonical values.
	(add_mem_for_addr, cselib_lookup_mem): Canonicalize addr.
	(cselib_invalidate_mem): Likewise.  Ensure v is canonical, and
	canonicalize mem_chain elements that are not discarded.

2012-01-06  Jakub Jelinek  <jakub@redhat.com>

	PR target/47333
	* cgraphunit.c (cgraph_optimize): Call output_weakrefs
	before emitting functions.

	PR gcov-profile/50127
	* bb-reorder.c (partition_hot_cold_basic_blocks): Call
	clear_aux_for_blocks.

2012-01-06  Alexandre Oliva  <aoliva@redhat.com>

	PR debug/51746
	* cselib.c (cselib_hash_rtx): Hash incoming VALUEs too.

2012-01-06  Arnaud Charlet  <charlet@adacore.com>

	* c-decl.c (ext_block): Moved up.
	(collect_all_refs, for_each_global_decl): Take ext_block into account.

2012-01-06  Han Shen  <shenhan@google.com>

	Translate built-in include paths for sysroot.
	* Makefile.in (gcc_gxx_include_dir_add_sysroot): New.
	(PREPROCESSOR_DEFINES): Define GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT.

	* cppdefault.c (cpp_include_defaults): Replace hard coded "0" with
	GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT for "add_sysroot" field.

	* configure.ac (AC_SUBST): Add gcc_gxx_include_dir_add_sysroot to
	control whether sysroot should be prepended to gxx include dir.

	* configure: Regenerate.

2012-01-06  Torvald Riegel  <triegel@redhat.com>

	PR rtl-optimization/51771
	* builtin-attrs.def (ATTR_RETURNS_TWICE, ATTR_TM_NOTHROW_RT_LIST): New.
	* gtm-builtins.def (BUILT_IN_TM_START): Add returns-twice attrib.

2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>

	PR tree-optimization/51315
	* tree-sra.c (tree_non_aligned_mem_for_access_p): New predicate.
	(build_accesses_from_assign): Use it instead of tree_non_aligned_mem_p.

2012-01-05  Uros Bizjak  <ubizjak@gmail.com>

	PR target/51681
	* config/ia64/ia64.c (expand_vec_perm_shrp): Use correct operands
	for shrp pattern.  Correctly handle and fixup shift variable.
	Return false when shift > nelt for BYTES_BIG_ENDIAN target.

2012-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR debug/51762
	* calls.c (emit_call_1): For noreturn calls force a REG_ARGS_SIZE
	note when !ACCUMULATE_OUTGOING_ARGS.

2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>

	* tree-vrp.c (extract_range_from_binary_expr_1): Remove duplicated
	condition.
	(extract_range_from_unary_expr_1): Avoid useless computations.

2012-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/51767
	* cfgrtl.c (force_nonfallthru_and_redirect): Force addition
	of jump_block and add an extra edge for degenerated asm gotos.

	PR middle-end/51768
	* stmt.c (check_unique_operand_names): Don't ICE during error
	reporting if i is from labels chain.

	PR middle-end/44777
	* profile.c (branch_prob): Split bbs that have exit edge
	and need a fake entry edge too.

2012-01-05  Jan Hubicka  <jh@suse.cz>

	PR middle-end/49710
	* cfgloopmanip.c (remove_path): Walk loop hiearchy upwards when
	unlooping loops.

2012-01-05  Richard Guenther  <rguenther@suse.de>

	PR lto/50490
	* tree-streamer-out.c (write_ts_optimization): New function.
	(streamer_write_tree_body): Call it.
	* tree-streamer-in.c (lto_input_ts_optimization): New function.
	(streamer_read_tree_body): Call it.
	* lto-streamer-out.c (lto_is_streamable): Handle OPTIMIZATION_NODE.

2012-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/51761
	* gimple.h (struct gimplify_ctx): Add in_cleanup_point_expr field.
	* gimplify.c (gimplify_cleanup_point_expr): Save and set
	in_cleanup_point_expr before gimplify_stmt call and restore it
	afterwards.
	(gimplify_target_expr): Don't add {CLOBBER} cleanup if
	in_cleanup_point_expr is false.

2012-01-05  Richard Guenther  <rguenther@suse.de>

	PR middle-end/51764
	* common.opt (Wmudflap, fmudflap, fmudflapth, fmudflapir): Move
	to c.opt.
	* toplev.c (process_options): Reject combining mudflap and LTO.
	* tree-nomudflap.c (nogo): Use sorry instead of internal_error.

2012-01-05  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/51760
	* tree-ssa-ccp.c (likely_value): Drop UNDEFINED to CONSTANT,
	not VARYING.
	(bit_value_unop): Handle UNDEFINED operands.
	(bit_value_binop): Likewise.

2012-01-05  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr.c (avr_replace_prefix): Remove.
	(avr_asm_named_section): Use ACONCAT instead of avr_replace_prefix.
	(avr_asm_function_rodata_section): Ditto.
	(avr_asm_select_section): Ditto.

2012-01-05  Marcus Shawcroft  <marcus.shawcroft@arm.com>

	* reload.c (find_reloads): Adjust LABEL_NUSES on REG_LABEL_OPERAND
	insertion.

2012-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/51648
	* tree-cfg.c (need_fake_edge_p): Return true also for noreturn
	calls that have any non-fake successor edges.

	PR debug/51746
	* var-tracking.c (add_stores): For COND_EXEC allow oval to be NULL.

2012-01-04  Eric Botcazou  <ebotcazou@adacore.com>

	PR tree-optimization/51624
	* tree-sra.c (build_ref_for_model): When replicating a chain of
	COMPONENT_REFs, stop as soon as the offset would become negative.

2012-01-04  Jakub Jelinek  <jakub@redhat.com>

	PR debug/51695
	* dwarf2out.c (output_loc_list): For now drop >= 64KB expressions
	in .debug_loc on the floor.

2012-01-04  Andrew Pinski  <apinski@cavium.com>

	* doc/invoke.texi (-march=@var{arch}): Add octeon+ and octeon2.

2012-01-04  Andrew Pinski  <apinski@cavium.com>
	    Adam Nemet  <anemet@caviumnetworks.com>

	* config/mips/mips.md (size): Add SI and DI.
	(SIZE): New mode attribute.
	(U): New code attribute.
	* config/mips/mips-dsp.md (mips_lbux): Use gen_mips_lbux_extsi.
	(mips_lbux_<mode>): Delete.
	(mips_l<SHORT:size><u>x_ext<GPR:mode>_<P:mode>): New pattern.
	(mips_lhx): Use gen_mips_lhx_extsi.
	(mips_lhx_<mode>): Delete.
	(mips_lwx): Delete.
	(mips_l<size>x): New expand.
	(mips_lwx_<mode>): Delete.
	(mips_l<GPR:size>x_<P:mode>): New pattern.
	(*mips_lw<u>x_<P:mode>_ext): Likewise.
	* config/mips/mips-ftypes.def: Add DI f(POINTER, SI) function type.
	* config/mips/mips.c (mips_lx_address_p): New function.
	(mips_rtx_costs <case MEM>): Call mips_lx_address_p.
	(dsp64): New availability predicate.
	(mips_builtins): Add an entry for __builtin_mips_ldx.
	* config/mips/mips.h (ISA_HAS_LBX): New define.
	(ISA_HAS_LBUX): Likewise.
	(ISA_HAS_LHX): Likewise.
	(ISA_HAS_LHUX): Likewise.
	(ISA_HAS_LWX): Likewise.
	(ISA_HAS_LWUX): Likewise.
	(ISA_HAS_LDX): Likewise.
	* doc/extend.texi (__builtin_mips_ldx): Document.

2012-01-04  Tristan Gingold  <gingold@adacore.com>

	* config/vms/xm-vms.h (HOST_LONG_FORMAT, HOST_PTR_PRINTF): Define
	when long pointers are used.
	* config.build (*-*-*vms*): Handle all OpenVMS targets.
	(alpha64-dec-*vms*, alpha*-dec-*vms*)
	(ia64-hp-*vms*): Remove.
	* config/vms/xm-vms64.h: Delete.

2012-01-04  Aldy Hernandez  <aldyh@redhat.com>

	PR middle-end/51472
	* trans-mem.c (expand_assign_tm): Handle TM_MEMMOVE loads correctly.

2012-01-04  Aldy Hernandez  <aldyh@redhat.com>

	* opts.c (finish_options): Remove duplicate sorry.

2012-01-04  Aldy Hernandez  <aldyh@redhat.com>

	PR middle-end/51696
	* trans-mem.c (diagnose_tm_1): Display indirect calls with no name
	correctly.

2012-01-04  Richard Guenther  <rguenther@suse.de>

	PR middle-end/51750
	* tree.c (size_low_cst): New function.
	* tree.h (size_low_cst): Declare.
	* fold-const.c (fold_comparison): Use it to extract the low
	part of the POINTER_PLUS_EXPR offset.

2012-01-04  Georg-Johann Lay  <avr@gjlay.de>

	Fix clearing ZERO_REG
	* config/avr/avr.md (cc): Add alternative "ldi".
	(movqi_insn): Use it in cc attribute.
	* config/avr/avr.c (notice_update_cc): Handle CC_LDI.
	(output_reload_in_const): Use CLR to move 0 to ZERO_REG.
	(output_reload_insisf): Use ZERO_REG to pre-clear register.

2012-01-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* configure: Regenerate.

2012-01-04  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/49651
	* tree-ssa-structalias.c (type_can_have_subvars): New function.
	(var_can_have_subvars): Use it.
	(get_constraint_for_1): Only consider subfields if there can be any.

2012-01-03  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/51725
	* cselib.c (new_elt_loc_list): When moving locs from one cselib_val
	to its new canonical_cselib_val and the cselib_val was in
	first_containing_mem chain, but the canonical_cselib_val was not,
	add the latter into the chain.
	(cselib_invalidate_mem): Compare canonical_cselib_val of
	addr_list chain elt with v.

	PR pch/51722
	* dwarf2out.c (dwarf2out_start_source_file, dwarf2out_define,
	dwarf2out_undef): Allocate e.info using ggc_strdup instead
	of xstrdup.
	(output_macinfo_op): Don't ggc_strdup fd->filename.
	(optimize_macinfo_range): Allocate grp_name using XALLOCAVEC,
	then ggc_strdup it.  Don't free inc->info or cur->info.
	(output_macinfo): Don't free ref->info or file->info.

2012-01-03  Ira Rosen  <irar@il.ibm.com>

	PR tree-optimization/51269
	* tree-vect-loop-manip.c (set_prologue_iterations): Make
	first_niters a pointer.
	(slpeel_tree_peel_loop_to_edge): Likewise.
	(vect_do_peeling_for_loop_bound): Update call to
	slpeel_tree_peel_loop_to_edge.
	(vect_gen_niters_for_prolog_loop): Don't compute wide_prolog_niters
	here.  Remove it from the parameters list.
	(vect_do_peeling_for_alignment): Update calls and compute
	wide_prolog_niters.

2012-01-03  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/51070
	* tree-loop-distribution.c (stmt_has_scalar_dependences_outside_loop):
	Properly handle calls.

2012-01-03  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/51692
	* tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not remove
	the LHS of allocation stmts.

2012-01-03  Olivier Hainque  <hainque@adacore.com>

	* system.h: Prior to #define, #undef fopen and freopen unconditionally.

2012-01-03  Olivier Hainque  <hainque@adacore.com>

	* collect2.c (main): In AIX specific computations for vector
	insertions, use CONST_CAST2 to cast from char ** to const char **.

2012-01-03  Richard Guenther  <rguenther@suse.de>

	PR debug/51650
	* dwarf2out.c (dwarf2out_finish): Always create a DIE for
	the context of a limbo DIE when it does not already exist.

2012-01-03  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/51719
	* value-prof.c (gimple_ic): When indirect call isn't noreturn,
	but direct call is, clear direct call's lhs and don't add fallthrough
	edge from dcall_bb to join_bb and PHIs.

2012-01-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/s390.md ("*cmp<mode>_ccs"): Fix comment mentioning
	the instructions emitted by the pattern.
	("*TDC_insn_<mode>"): Add comment.

2012-01-03  Richard Guenther  <rguenther@suse.de>

	PR middle-end/51730
	* fold-const.c (fold_comparison): Properly canonicalize
	tree offset and HOST_WIDE_INT bit position.

2012-01-02  Uros Bizjak  <ubizjak@gmail.com>

	* config/ia64/ia64.c (expand_vec_perm_broadcast): Use correct
	operands for extzv pattern.

2012-01-02  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/51725
	* cselib.c (add_mem_for_addr): Call canonical_cselib_val
	on mem_elt first.

2012-01-02  Sandra Loosemore  <sandra@codesourcery.com>

	* doc/invoke.texi (-flto and related options): Copy-edit.

2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>

	* config/mips/mips.md (loadgp_newabi_<mode>): Add missing earlyclobber.

2012-01-02  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/sse.md (*avx2_gatherdi<mode>_3, *avx2_gatherdi<mode>_4):
	New patterns.

2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>

	* expr.h (move_by_pieces_ninsns): Declare.
	* expr.c (move_by_pieces_ninsns): Make external.
	* config/mips/mips-protos.h (mips_move_by_pieces_p): Declare.
	(mips_store_by_pieces_p): Likewise.
	* config/mips/mips.h (MOVE_BY_PIECES_P): Call mips_move_by_pieces_p.
	(STORE_BY_PIECES_P): Likewise mips_store_by_pieces_p.
	* config/mips/mips.c (mips_move_by_pieces_p): New function.
	(mips_store_by_pieces_p): Likewise.

2012-01-02  Jakub Jelinek  <jakub@redhat.com>

	* passes.c (register_one_dump_file): Free full_name.

	* reload1.c (reload): Don't allocate reg_max_ref_width here.
	(calculate_elim_costs_all_insns): Free offsets_at and
	offsets_known_at at the end and clear the pointers.

2012-01-02  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr.opt (-mbranch-cost): Fix double definition of
	this option introduced in r180739.

2012-01-02  Georg-Johann Lay  <avr@gjlay.de>

	PR target/51345
	* config.gcc (tm_file target=avr]): Add avr/avr-multilib.h
	(tmake_file target=avr): Add avr/t-multilib.

	* config/avr/avr-c.c (avr_cpu_cpp_builtins): Use AVR_HAVE_8BIT_SP
	to built-in define __AVR_HAVE_8BIT_SP__, __AVR_HAVE_16BIT_SP__.
	* config/avr/genmultilib.awk: New file.
	* config/avr/t-multilib: New auto-generated file.
	* config/avr/multilib.h: New auto-generated file.
	* config/avr/t-avr (AVR_MCUS): New variable.
	(genopt.sh): Use it.
	(s-mlib): Depend on t-multilib.
	(t-multilib, multilib.h): New dependencies.
	(s-avr-mlib): New rule to build t-multilib, multilib.h from AVR_MCUS.
	(MULTILIB_OPTIONS): Remove.
	(MULTILIB_MATCHES): Remove.
	(MULTILIB_DIRNAMES): Remove.
	(MULTILIB_EXCEPTIONS): Remove:
	* config/avr/genopt.sh: Don't use hard coded file name;
	pass AVR_MCUS from t-avr instead.

2012-01-02  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr.c (avr_out_ashrpsi3): Fix "case 31" to "case 23".

2012-01-02  Georg-Johann Lay  <avr@gjlay.de>

	Implement light-weight DImode support.
	* config/avr/avr-dimode.md: New file.
	* config/avr/avr.md: Include it.
	(adjust_len): Add plus64, compare64.
	(HIDI): Remove code iterator.
	(code_stdname): New code attribute.
	(rotx, rotsmode): Remove DI.
	(rotl<mode>3, *rotw<mode>, *rotb<mode>): Use HISI instead of HIDI
	as code iterator.
	* config/avr/avr-protos.h (avr_have_dimode): New.
	(avr_out_plus64, avr_out_compare64): New.
	* config/avr/avr.c (avr_out_compare): Handle DImode.
	(avr_have_dimode): New variable definition and initialization.
	(avr_out_compare64, avr_out_plus64): New functions.
	(avr_out_plus_1): Use simplify_unary_operation to negate xval.
	(adjust_insn_length): Handle ADJUST_LEN_COMPARE64, ADJUST_LEN_PLUS64.
	(avr_compare_pattern): Skip DImode comparisons.

2012-01-02  Revital Eres  <revital.eres@linaro.org>

	* ddg.c (def_has_ccmode_p): New function.
	(add_cross_iteration_register_deps,
	create_ddg_dep_from_intra_loop_link): Call it.

2012-01-02  Richard Guenther  <rguenther@suse.de>

	PR other/51679
	* invoke.texi (fassociative-math): Remove spurious paranthesis.

2012-01-01  Jakub Jelinek  <jakub@redhat.com>

	* gcc.c (process_command): Update copyright notice dates.
	* gcov.c (print_version): Likewise.
	* gcov-dump.c (print_version): Likewise.
	* mips-tfile.c (main): Likewise.
	* mips-tdump.c (main): Likewise.

2012-01-01  Ira Rosen  <irar@il.ibm.com>

	PR tree-optimization/51704
	* tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Check that
	a use is inside the basic block or loop before accessing its vect info.

2012-01-01  Jan Hubicka  <jhjh@suse.cz>

	PR rtl-optimization/51069
	* cfgloopmanip.c (remove_path): Removing path making irreducible
	region unconditional makes BB part of the region.

2012-01-01  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/51683
	* tree-ssa-propagate.c (substitute_and_fold): Don't optimize away
	calls with side-effects.
	* tree-ssa-ccp.c (ccp_fold_stmt): Likewise.
\f
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