OSDN Git Service

PR tree-optimization/51596
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
index ee1b698..57f9e4e 100644 (file)
@@ -1,3 +1,738 @@
+2011-12-19  Jakub Jelinek  <jakub@redhat.com>
+
+       PR tree-optimization/51596
+       * tree-cfg.c (replace_uses_by): Call gimple_purge_dead_eh_edges
+       when needed.
+
+       PR middle-end/51590
+       PR tree-optimization/51606
+       * tree-vect-patterns.c (append_pattern_def_seq, new_pattern_def_seq):
+       New inline functions.
+       (vect_recog_over_widening_pattern,
+       vect_recog_vector_vector_shift_pattern,
+       vect_recog_sdivmod_pow2_pattern, vect_recog_mixed_size_cond_pattern,
+       adjust_bool_pattern_cast, vect_recog_bool_pattern): Use them.
+
+2011-12-19  Richard Guenther  <rguenther@suse.de>
+
+       PR lto/51572
+       * tree.c (free_lang_data_in_type): Do not unlink TYPE_DECL
+       from TYPE_FIELDS.
+       (find_decls_types_r): Walk TYPE_DECLs in TYPE_FIELDS.
+       * tree-streamer-out.c (write_ts_field_decl_tree_pointers): Do
+       not stream TREE_CHAIN.
+       (write_ts_type_non_common_tree_pointers): Stream TYPE_FIELDS
+       using streamer_write_chain.
+       * tree-streamer-in.c (lto_input_ts_field_decl_tree_pointers):
+       Do not stream TREE_CHAIN.
+       (lto_input_ts_type_non_common_tree_pointers): Stream TYPE_FIELDS
+       using streamer_read_chain.
+       * gimple-streamer-in.c (input_gimple_stmt): Skip non-FIELD_DECLs.
+       * gimple.c (gimple_canonical_types_compatible_p): Properly
+       handle trailing non-FIELD_DECLs in TYPE_FIELDS.
+
+2011-12-19  Andreas Schwab  <schwab@linux-m68k.org>
+
+       * configure: Regenerate.
+
+2011-12-19  Bernd Schmidt  <bernds@codesourcery.com>
+
+       * emit-rtl.c (init_emit_once): Initialize const_tiny_rtx[3] for
+       partial integer modes.
+
+2011-12-19  Andreas Schwab  <schwab@linux-m68k.org>
+
+       PR target/51532
+       * config/m68k/m68k.h (FL_CAS, TARGET_CAS): Define.
+       * config/m68k/m68k.c (FL_FOR_isa_20): Add FL_CAS.
+       * config/m68k/sync.md: Use TARGET_CAS instead of (TARGET_68020 ||
+       TARGET_68040).
+
+2011-12-18  Anatoly Sokolov  <aesok@post.ru>
+
+       * config/ia64/ia64.h (REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P,
+       LEGITIMATE_ADDRESS_REG, LEGITIMATE_ADDRESS_DISP,
+       GO_IF_LEGITIMATE_ADDRESS): Remove macros.
+       * config/ia64/ia64.c (TARGET_LEGITIMATE_ADDRESS_P): Define.
+       (ia64_reg_ok_for_base_p, ia64_legitimate_address_reg,
+       ia64_legitimate_address_disp, ia64_legitimate_address_p): New
+       functions.
+
+2011-12-17  Tom de Vries  <tom@codesourcery.com>
+
+       PR tree-optimization/51491
+       * tree-ssa-ccp.c (insert_clobber_before_stack_restore)
+       (gsi_prev_dom_bb_nondebug, insert_clobbers_for_var): New function.
+       (ccp_fold_stmt): Use insert_clobbers_for_var after a successful
+       fold_builtin_alloca_with_align.
+       (ccp_visit_stmt): Calculate and free dominator info.
+
+2011-12-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+       * config/sparc/sparc.md (UNSPEC_FRAME_BLOCKAGE): New constant.
+       (frame_blockage): New expander.
+       (frame_blockage<P:mode>): New instruction.
+       * config/sparc/sparc.c (sparc_expand_prologue): When the sequence of
+       instructions establishing the frame isn't atomic, emit frame blockage.
+
+2011-12-16  Tristan Gingold  <gingold@adacore.com>
+
+       * config/alpha/vms.h (USE_TM_CLONE_REGISTRY): Define.
+
+2011-12-16  Tristan Gingold  <gingold@adacore.com>
+
+       * config/alpha/alpha.c (alpha_use_linkage): Follow transparent alias.
+       (alpha_write_one_linkage): Use assemble_name to emit linkage name.
+
+2011-12-16  Tristan Gingold  <gingold@adacore.com>
+
+       * config/vms/t-vms (vms.o, vms-c.o): Force output filename.
+
+2011-12-16  Tristan Gingold  <gingold@adacore.com>
+
+       * config/vms/vms.c (VMS_CRTL_GLOBAL): Define.
+       (vms_patch_builtins): Handle.
+       * config/vms/vms-crtlmap.map: Add an entry for environ.
+
+2011-12-16  Jakub Jelinek  <jakub@redhat.com>
+
+       PR debug/51557
+       * sel-sched-ir.c (create_copy_of_insn_rtx): Copy all notes
+       other than REG_EQUAL, REG_EQUIV and REG_LABEL_OPERAND.
+
+       PR tree-optimization/51576
+       * tree-cfg.c (replace_uses_by): Call maybe_clean_or_replace_eh_stmt
+       even if fold_stmt didn't change anything.
+
+2011-12-16  Richard Guenther  <rguenther@suse.de>
+
+       PR lto/51572
+       * dwarf2out.c (gen_type_die_with_usage): Use the context of
+       the TYPE_DECL as well if it is file-scope.
+
+2011-12-15  DJ Delorie  <dj@redhat.com>
+
+       * config/rl78/rl78.md (return): Rename to rl78_return.
+       * config/rl78/rl78.c (rl78_expand_epilogue): Use new name.
+       (rl78_expand_eh_epilogue): Use new name.
+       (rl78_calculate_death_notes): Likewise.
+
+2011-12-15  Jakub Jelinek  <jakub@redhat.com>
+
+       * tree-vectorizer.h (struct _stmt_vec_info): Remove pattern_def_stmt
+       field, add pattern_def_seq.
+       (STMT_VINFO_PATTERN_DEF_STMT): Remove.
+       (STMT_VINFO_PATTERN_DEF_SEQ): Define.
+       (NUM_PATTERNS): Bump to 10.
+       * tree-vect-loop.c (vect_determine_vectorization_factor,
+       vect_transform_loop): Adjust for pattern def changing from a single
+       gimple stmt to gimple_seq.
+       * tree-vect-stmts.c (vect_analyze_stmt, new_stmt_vec_info,
+       free_stmt_vec_info): Likewise.
+       * tree-vect-patterns.c (vect_recog_over_widening_pattern,
+       vect_recog_vector_vector_shift_pattern,
+       vect_recog_mixed_size_cond_pattern, adjust_bool_pattern_cast,
+       adjust_bool_pattern, vect_mark_pattern_stmts): Likewise.
+       (vect_recog_sdivmod_pow2_pattern): New function.
+       (vect_vect_recog_func_ptrs): Add it.
+
+       * config/i386/sse.md (vcond<V_256:mode><VI_256:mode>,
+       vcond<V_128:mode><VI124_128:mode>, vcond<VI8F_128:mode>v2di):
+       Use general_operand instead of nonimmediate_operand for
+       operand 5 and no predicate for operands 1 and 2.
+       * config/i386/i386.c (ix86_expand_int_vcond): Optimize
+       x < 0 ? -1 : 0 and x < 0 ? 1 : 0 into vector arithmetic
+       resp. logical shift.
+
+2011-12-15  Georg-Johann Lay  <avr@gjlay.de>
+
+       * config/avr/avr-protos.h (print_operand): Remove.
+       (print_operand_address): Remove.
+       * config/avr/avr.h (PRINT_OPERAND): Remove.
+       (PRINT_OPERAND_ADDRESS): Remove.
+       (PRINT_OPERAND_PUNCT_VALID_P): Remove.
+       * config/avr/avr.c (TARGET_PRINT_OPERAND): New hook define.
+       (TARGET_PRINT_OPERAND_ADDRESS): New hook define.
+       (TARGET_PRINT_OPERAND_PUNCT_VALID_P): New hook define.
+       (print_operand_address): Rename to...
+       (avr_print_operand_address): ...this and make static.
+       (print_operand): Rename to...
+       (avr_print_operand): ...this and make static.
+       (avr_print_operand_punct_valid_p): New static function.
+
+2011-12-15  Andreas Tobler  <andreast@fgznet.ch>
+
+       * config/i386/freebsd.h (TARGET_ASM_FILE_END): Define.
+
+2011-12-15  Jakub Jelinek  <jakub@redhat.com>
+
+       PR c/51360
+       * c-parser.c (c_parser_omp_clause_num_threads,
+       c_parser_omp_clause_schedule): Call mark_exp_read.
+
+2011-12-15  Romain Geissler  <romain.geissler@gmail.com>
+
+       * builtins.def (BUILT_IN_STPNCPY_CHK): New definition.
+       * builtins.c (expand_builtin, fold_builtin_4, maybe_emit_chk_warning):
+       Add BUILT_IN_STPNCPY_CHK case.
+       * gimple-fold.c (gimple_fold_builtin): Likewise.
+       * tree-object-size.c (pass_through_call): Likewise.
+       * tree-ssa-alias.c (ref_maybe_used_by_call_p_1,
+       call_may_clobber_ref_p_1): Likewise.
+       * tree-ssa-structalias.c (find_func_aliases_for_builtin_call,
+       find_func_clobbers): Likewise.
+       * tree.h (fold_builtin_strncpy_chk): Rename to fold_builtin_stxncpy_chk
+       * builtins.c (fold_builtin_strncpy_chk): Likewise.
+       Rewrite stpncpy_chk calls to strncpy_chk calls if returned value is
+       ignored.
+
+2011-12-15  Richard Guenther  <rguenther@suse.de>
+
+       PR lto/51567
+       * gimple.c (compare_type_names_p): Also compare the TREE_CODE.
+       (iterative_hash_name): Also hash the TREE_CODE.
+       (gimple_types_compatible_p_1): For types with a TYPE_DECL
+       name and a type DECL_CONTEXT recurse to that type.
+       (iterative_hash_gimple_type): Likewise.
+
+2011-12-15  Iain Sandoe  <iains@gcc.gnu.org>
+
+       * config/rs6000/rs6000.c  (rs6000_emit_prologue): Move update of
+       VRSave mask to save_world() when that is in use.
+
+2011-12-15  Richard Guenther  <rguenther@suse.de>
+
+       * lto-wrapper.c (run_gcc): In non-parallel mode remove
+       ltrans inputs immediately after processing them.  In parallel
+       mode truncate the ltrans inputs in the make rule that processes
+       them if temporary files are not to be preserved.
+
+2011-12-15  Anatoly Sokolov  <aesok@post.ru>
+
+       * config/arm/arm.h (REGISTER_MOVE_COST, MEMORY_MOVE_COST): Remove.
+       * config/arm/arm.c (arm_memory_move_cost, arm_register_move_cost):
+       New functions.
+       (TARGET_REGISTER_MOVE_COST, TARGET_MEMORY_MOVE_COST): Define.
+
+2011-12-15  Richard Guenther  <rguenther@suse.de>
+
+       PR lto/51564
+       * tree.h (REGISTER_DEFS_IN_THIS_STMT, NECESSARY,
+       STMT_IN_SSA_EDGE_WORKLIST): Remove no longer existing flag
+       uses documentation.
+       (TREE_ASM_WRITTEN): Update documentation to mention its use
+       on TYPE_DECLs from debug info generation.
+       * tree-streamer-out.c (pack_ts_base_value_fields): Stream
+       TREE_ASM_WRITTEN as always zero for TYPE_DECLs, similar to
+       all other types.
+
+2011-12-15  Georg-Johann Lay  <avr@gjlay.de>
+
+       PR target/51050
+       * config/avr/avr.c (expand_epilogue): Don't build SUBREG of fp.
+       (avr_prologue_setup_frame): Ditto.
+
+2011-12-15  Jakub Jelinek  <jakub@redhat.com>
+
+       PR debug/51517
+       * tree-ssa-coalesce.c (coalesce_ssa_name): For !optimize, test
+       !DECL_IGNORED_P instead of !DECL_ARTIFICIAL.
+
+2012-12-15  Richard Guenther  <rguenther@suse.de>
+
+       Revert
+       PR lto/48437
+       * lto-streamer-out.c (tree_is_indexable): Exclude block-local
+       extern declarations.
+
+       PR lto/48508
+       PR lto/48437
+       * tree-streamer-out.c (streamer_write_chain): Stream DECL_EXTERNAL
+       VAR_DECLs and FUNCTION_DECLs locally.
+
+2011-12-14  Richard Henderson  <rth@redhat.com>
+
+       * config/arm/arm.md (*addsi3_compare0_scratch): Set predicable.
+       (*compare_negsi_si, *compare_addsi2_op0): Likewise.
+       (*compare_addsi2_op1, *zeroextractsi_compare0_scratch): Likewise.
+       (*compareqi_eq0, *arm_cmpsi_insn, *arm_cmpsi_negshiftsi_si): Likewise.
+
+2011-12-14  Richard Guenther  <rguenther@suse.de>
+
+       * tree-cfg.c (replace_uses_by): Fixup TREE_CONSTANT for
+       propagating all kinds of constants.
+
+2011-12-14  Richard Guenther  <rguenther@suse.de>
+
+       PR lto/51497
+       * lto-streamer-in.c (lto_read_body): Fixup local types
+       TYPE_CANONICAL and variant chain.
+
+2011-12-14  Richard Guenther  <rguenther@suse.de>
+
+       * tree.c (free_lang_data_in_type): Do not clear fields
+       dependent on debuginfo level setting.
+       (find_decls_types_r): Use TYPE_STUB_DECL rathern than TREE_CHAIN.
+       * tree.h (TYPE_STUB_DECL): Properly check that we access a type.
+
+2011-12-14  Georg-Johann Lay  <avr@gjlay.de>
+
+       PR target/50931
+       * config/avr/avr.md (mulpsi3): New expander.
+       (*umulqihipsi3, *umulhiqipsi3): New insns.
+       (*mulsqipsi3.libgcc, *mulpsi3.libgcc): New insns.
+       (mulsqipsi3, *mulpsi3): New insn-and-splits.
+       (ashlpsi3): Turn to expander.  Move insn code to...
+       (*ashlpsi3): ...this new insn.
+
+2011-12-14  Richard Guenther  <rguenther@suse.de>
+
+       * tree-cfg.c (replace_uses_by): Only mark blocks altered
+       that will make a difference.  Only recompute ADDR_EXPR
+       invariantness if it could possibly have changed.  Do so
+       before folding the statement.
+
+2011-12-13  Eric Botcazou  <ebotcazou@adacore.com>
+
+       * lto-streamer-out.c (write_symbol): Use proper 64-bit host type.
+       * lto-cgraph.c (input_cgraph_opt_section): Use 'int' for offsets.
+       * lto-streamer-in.c (lto_read_body): Likewise.
+       (lto_input_toplevel_asms): Likewise.
+       * lto-section-in.c (lto_create_simple_input_block): Likewise.
+       * ipa-inline-analysis.c (inline_read_section): Likewise.
+       * ipa-prop.c (ipa_prop_read_section): Likewise.
+
+       * df.h (DF_NOTE): Fix typo in comment.
+
+2011-12-13  Aldy Hernandez  <aldyh@redhat.com>
+
+       * trans-mem.c (ipa_tm_create_version_alias): Set DECL_CONTEXT and
+       DECL_LANG_SPECIFIC.
+
+2011-12-13  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
+
+       * regmove.c (fixup_match_2): Only access call_used_regs with hard regs.
+
+2011-12-13  Andrew Pinski  <apinski@cavium.com>
+           Adam Nemet  <anemet@caviumnetworks.com>
+
+       * config/mips/mips-cpus.def: Add Octeon2.
+       * config/mips/mips-tables.opt: Regenerate.
+       * config/mips/mips.md (define_attr "cpu"): Add Octeon2.
+       * config/mips/driver-native.c (host_detect_local_cpu): Support Octeon2.
+       * config/mips/octeon.md (octeon_arith): Add Octeon2.
+       (octeon_condmove): Likewise.
+       (octeon_load): Rename to ..
+       (octeon_load_o1): this.
+       (octeon_load_o2): New reserve.
+       (octeon_cop_o2): New reserve.
+       (octeon_store):  Match Octeon2 also.
+       (octeon_brj): Rename to ..
+       (octeon_brj_o1): this.
+       (octeon_brj_o2): New reserve.
+       (octeon_imul3): Rename to ...
+       (octeon_imul3_o1): this.
+       (octeon_imul3_o2): New reserve.
+       (octeon_imul): Rename to ...
+       (octeon_imul_o1): this.
+       (octeon_imul_o2): New reserve.
+       (octeon_mfhilo): Rename to ...
+       (octeon_mfhilo_o1): This.
+       (octeon_mfhilo_o2): New reserve.
+       (octeon_imadd): Rename to ...
+       (octeon_imadd_o1): this.
+       (octeon_imadd_o2): New reserve.
+       (octeon_idiv): Rename to ..
+       (octeon_idiv_o1): This.
+       (octeon_idiv_o2_si): New reserve.
+       (octeon_idiv_o2_di): Likewise.
+       (octeon_unknown): Match Octeon2 also.
+       * config/mips/mips.c (mips_rtx_cost_data): Add Octeon2 cost data.
+       (mips_issue_rate): Octeon2 can issue 2 at a time.
+       * config/mips/mips.h (TARGET_OCTEON): Match Octeon2 also.
+       (TARGET_OCTEON2): New define.
+       (TUNE_OCTEON): Match Octeon2 also.
+
+2011-12-13  Richard Henderson  <rth@redhat.com>
+
+       * config/sparc/tso.h: New file.
+       * config.gcc (sparc-*-linux*, sparc*-*-solaris2*): Use it.
+       * config/sparc/sparc.c (sparc_option_override): Honor
+       SUBTARGET_DEFAULT_MEMORY_MODEL.
+       * config/sparc/sparc.h (SUBTARGET_DEFAULT_MEMORY_MODEL): New.
+
+2011-12-13  Aldy Hernandez  <aldyh@redhat.com>
+
+       PR middle-end/51443
+       * trans-mem.c (struct diagnose_tm): Remove saw_unsafe.
+       (diagnose_tm_1): Same.
+       (ipa_tm_execute): Do not test tm_may_enter_irr before we set it.
+       (ipa_tm_scan_irr_function): Return gracefully when no
+       DECL_STRUCT_FUNCTION.
+       (ipa_tm_scan_irr_block): Believe the user on TM attributes.
+
+2011-12-13  Martin Jambor  <mjambor@suse.cz>
+
+       PR middle-end/50628
+       * tree-sra.c (propagate_subaccesses_across_link): Do not propagate
+       sub-accesses of scalar accesses.
+
+2011-12-13  Martin Jambor  <mjambor@suse.cz>
+
+       PR tree-optimization/51362
+       * ipa-cp.c (estimate_local_effects): When estimated size of a
+       specialized clone is zero, bump it to one.
+
+2011-12-13  Richard Guenther  <rguenther@suse.de>
+
+       PR lto/48354
+       * tree.c (find_decls_types_r): Also walk DECL_ORIGINAL_TYPE.
+       * tree-streamer-in.c (lto_input_ts_decl_non_common_tree_pointers):
+       Stream DECL_ORIGINAL_TYPE.
+       * tree-streamer-out.c (write_ts_decl_non_common_tree_pointers):
+       Likewise.
+
+2011-12-13  Jakub Jelinek  <jakub@redhat.com>
+
+       Revert
+       2011-12-12  Jakub Jelinek  <jakub@redhat.com>
+
+       PR tree-optimization/51481
+       * gimple-fold.c (gimple_fold_call): Call
+       maybe_clean_or_replace_eh_stmt.  Avoid optimization if stmt has EH
+       edges, but gimple_fold_builtin result can't throw.
+
+2011-12-13  Jakub Jelinek  <jakub@redhat.com>
+           Michael Matz  <matz@suse.de>
+
+       PR tree-optimization/51117
+       * tree-eh.c (sink_clobbers): New function.
+       (execute_lower_eh_dispatch): Call it for BBs ending with
+       internally throwing RESX.
+       * cfgexpand.c (add_scope_conflicts_1): Add all conflicts only
+       at the first real instruction.
+
+2011-12-13  Tristan Gingold  <gingold@adacore.com>
+
+       * final.c (final_scan_insn): Guard the call to begin_epilogue
+       debug hook.
+
+2011-12-13  Tristan Gingold  <gingold@adacore.com>
+
+       * vmsdbgout.c (vmsdbgout_write_source_line): New function.
+       (vmsdbgout_end_prologue): Call vmsdbgout_write_source_line.
+       (vmsdbgout_begin_epilogue): Likewise.
+       (vmsdbgout_end_epilogue): Likewise.
+       (vmsdbgout_source_line): Move code to vmsdbgout_write_source_line.
+
+2011-12-13  Richard Guenther  <rguenther@suse.de>
+
+       PR middle-end/51481
+       * tree-cfg.c (replace_uses_by): Pass proper arguments to
+       maybe_clean_or_replace_eh_stmt.
+
+2011-12-13  Richard Guenther  <rguenther@suse.de>
+
+       PR tree-optimization/51519
+       * ipa-inline.c (edge_badness): Use edge growth in non-guessed
+       branch probability case as well.
+
+2011-12-13  Revital Eres  <revital.eres@linaro.org>
+
+       * modulo-sched.c (mark_loop_unsched): Free bbs.
+
+2011-12-12  Jakub Jelinek  <jakub@redhat.com>
+
+       PR rtl-optimization/51495
+       * function.c (thread_prologue_and_epilogue_insns): Don't add
+       to bb_tail basic blocks that have EDGE_COMPLEX predecessor edges
+       from basic blocks not needing prologue.
+
+       PR tree-optimization/51481
+       * gimple-fold.c (gimple_fold_call): Call
+       maybe_clean_or_replace_eh_stmt.  Avoid optimization if stmt has EH
+       edges, but gimple_fold_builtin result can't throw.
+
+2011-12-12  Vladimir Makarov  <vmakarov@redhat.com>
+
+       PR rtl-optimization/21617
+       * ira-color.c (bucket_allocno_compare_func): Don't compare
+       allocno classes.  Compare number of hard registers needed.
+
+2011-12-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+       PR tree-optimization/50569
+       * tree-sra.c (build_ref_for_model): Replicate a chain of COMPONENT_REFs
+       in the expression of MODEL instead of just the last one.
+
+2011-12-12  Jakub Jelinek  <jakub@redhat.com>
+
+       PR middle-end/51510
+       * calls.c (internal_arg_pointer_based_exp_scan): Don't use
+       VEC_safe_grow_cleared if idx is smaller than VEC_length.
+
+2011-12-12  Richard Sandiford  <richard.sandiford@linaro.org>
+
+       PR middle-end/50873
+       * optabs.c (maybe_legitimize_operand_same_code): Use copy_to_mode_reg
+       instead of force_reg.  Do nothing if the address is already a
+       non-virtual pseudo register.
+
+2011-12-12  Torvald Riegel  <triegel@redhat.com>
+
+       * gimplify.c (voidify_wrapper_expr): Add default handling for
+       outermost wrapper.
+
+2011-12-12  Torvald Riegel  <triegel@redhat.com>
+
+       * tree-ssa-tail-merge.c (gimple_equal_p): Don't treat transaction
+       commits as equal.
+
+2011-12-12  Iain Sandoe  <iains@gcc.gnu.org>
+
+       * config/darwin-sections.def (zobj_const_data_section): Fix over-
+       length section name.
+
+2011-12-11  Richard Henderson  <rth@redhat.com>
+
+       * config/rs6000/rs6000.c (rs6000_expand_interleave): Use
+       BYTES_BIG_ENDIAN, not TARGET_BIG_ENDIAN.
+
+2011-12-11  Jakub Jelinek  <jakub@redhat.com>
+
+       PR tree-optimization/51485
+       * tree-vect-data-refs.c (vect_analyze_data_refs): Give up on
+       DRs in call stmts.
+
+2011-12-11  Patrick Marlier  <patrick.marlier@gmail.com>
+
+       * trans-mem.c (ipa_tm_transform_calls_redirect): Do not remove edge.
+
+2011-12-10  Richard Henderson  <rth@redhat.com>
+
+       * config/rs6000/altivec.md (altivec_vmrghb): Rewrite pattern as
+       vec_select + vec_concat.
+       (altivec_vmrghh, altivec_vmrghw, altivec_vmrghsf, altivec_vmrglb,
+       altivec_vmrglh, altivec_vmrglw, altivec_vmrglsf): Likewise.
+       (vec_perm_constv16qi): New.
+       (vec_extract_evenv4si, vec_extract_evenv4sf, vpkuhum_nomode,
+       vpkuwum_nomode, vec_extract_oddv8hi, vec_extract_oddv16qi,
+       vec_interleave_high<VI>, vec_interleave_low<VI>): Remove.
+       * config/rs6000/paired.md (paired_merge00): Rewrite pattern as
+       vec_select + vec_concat.
+       (paired_merge10, paired_merge01, paired_merge11): Likewise.
+       (vec_perm_constv2sf): New.
+       (vec_interleave_highv2sf, vec_interleave_lowv2sf,
+       vec_extract_evenv2sf, vec_extract_oddv2sf): Remove.
+       * config/rs6000/spe.md (spe_evmergehi): Rewrite pattern as
+       vec_select + vec_concat.
+       (spe_evmergehilo, spe_evmergelo, spe_evmergelohi): New.
+       (vec_perm_constv2si): New.
+       * config/rs6000/vector.md (vec_interleave_highv4sf,
+       vec_interleave_lowv4sf, vec_interleave_high<VEC_64>,
+       vec_interleave_low<VEC_64>): Remove.
+       * config/rs6000/vsx.md (VS_double): New mode attribute.
+       (UNSPEC_VSX_XXPERMDI): Remove.
+       (vsx_xxpermdi_<VSX_L>_1): Rewrite pattern as vec_select + vec_concat.
+       (vsx_xxmrghw_<VSX_W>, vsx_xxmrglw_<VSX_W>): Likewise.
+       (vsx_xxpermdi_<VSX_L>): Change to expander.
+       (vec_perm_const<VSX_D>): New.
+       (vsx_mergel_<VSX_D>, vsx_mergeh_<VSX_D>): New.
+       * config/rs6000/predicates.md (const_0_to_1_operand): New.
+       (const_2_to_3_operand): New.
+       * config/rs6000/rs6000.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): New.
+       (altivec_expand_vec_perm_const): New.
+       (rs6000_expand_vec_perm_const_1, rs6000_expand_vec_perm_const): New.
+       (rs6000_vectorize_vec_perm_const_ok): New.
+       (rs6000_do_expand_vec_perm): New.
+       (rs6000_expand_extract_even, rs6000_expand_interleave): New.
+       * config/rs6000/rs6000-builtin.def (VEC_MERGE*): Update rtx codes.
+       * config/rs6000/rs6000-modes.def: Add double-wide vector modes.
+       * config/rs6000/rs6000-protos.h: Update.
+
+2011-12-10  Richard Henderson  <rth@redhat.com>
+
+       * expr.c (expand_expr_real_2) [VEC_PERM_EXPR]: Avoid passing a
+       CONST_INT to expand_vec_perm as the selector.
+       * optabs.c (expand_vec_perm): Assert the selector is of a proper mode.
+
+2011-12-10  Richard Henderson  <rth@redhat.com>
+
+       * genmodes.c (struct mode_data): Remove wider_2x member.
+       (blank_mode): Adjust initializer.
+       (calc_wider_mode): Use XALLOCAVEC.
+       (emit_move_wider): Select double-width same-element vectors for
+       2xwider vectors.
+       * machmode.h (GET_MODE_2XWIDER_MODE): Update documentation.
+       * config/i386/i386.c (doublesize_vector_mode): Remove.
+       (expand_vselect_vconcat): Use GET_MODE_2XWIDER_MODE instead.
+
+2011-12-10  Joern Rennecke  <joern.rennecke@embecosm.com>
+
+       * config/epiphany/epiphany.h (USE_LOAD_POST_INCREMENT): Define.
+       (USE_LOAD_POST_DECREMENT, USE_STORE_POST_INCREMENT): Likewise.
+       (USE_STORE_POST_DECREMENT): Likewise.
+
+       * config/epiphany/epiphany.h (EPIPHANY_RETURN_REGNO): New macro,
+       broken out of ..
+       (INCOMING_RETURN_ADDR_RTX) .. this.  Use EPIPHANY_RETURN_REGNO.
+       (DWARF_FRAME_RETURN_COLUMN): New macro.
+
+       * config/epiphany/epiphany-protos.h (epiphany_start_function): Declare.
+       * config/epiphany/epiphany.c (epiphany_handle_interrupt_attribute):
+       Split "timer" value into "timer0" and "timer1".
+       Handle page_miss, message and wand.  Don't handle static_flag.
+       Adjust warning text.
+       (epiphany_start_function): New function.
+       (epiphany_compute_function_type): Split "timer" value into "timer0"
+       and "timer1".  Handle page_miss, message and wand.
+       Don't handle static_flag.
+       (epiphany_expand_epilogue): Don't use frame_insn for status / iret
+       restore.
+       * config/epiphany/epiphany.h: ASM_DECLARE_FUNCTION_NAME: Define.
+       (enum epiphany_function_type):
+       Split EPIPHANY_FUNCTION_TIMER value into EPIPHANY_FUNCTION_TIMER0
+       and EPIPHANY_FUNCTION_TIMER1.
+       Remove EPIPHANY_FUNCTION_ILINK1 and EPIPHANY_FUNCTION_ILINK2 values.
+       Add EPIPHANY_FUNCTION_PAGE_MISS and EPIPHANY_FUNCTION_MESSAGE values.
+       Rename EPIPHANY_FUNCTION_STATIC_FLAG to EPIPHANY_FUNCTION_WAND.
+
+2011-12-10  Nathan Sidwell  <nathan@acm.org>
+
+       PR gcov-profile/51449
+       * coverage.c (coverage_end_function): Always process the coverage
+       variables.
+
+2011-12-09  Aldy Hernandez  <aldyh@redhat.com>
+
+       PR/51291
+       * tree.c (build_common_builtin_nodes): Do not use TM_PURE
+       attribute unless language has support for TM.
+       * config/i386/i386.c (ix86_init_tm_builtins): Exit gracefully in
+       the absence of TM builtins.
+
+2011-12-09  Eric Botcazou  <ebotcazou@adacore.com>
+
+       * gimple-fold.c (gimple_fold_stmt_to_constant_1) <GIMPLE_UNARY_RHS>:
+       Also check the TYPE_MODE to recognize useless pointer conversions.
+
+2011-12-09  Jakub Jelinek  <jakub@redhat.com>
+
+       PR tree-optimization/51117
+       * tree-eh.c (optimize_clobbers): Don't remove just one
+       clobber, but all consecutive clobbers before RESX.
+       Use gimple_clobber_p predicate.
+
+2011-12-09  Michael Meissner  <meissner@the-meissners.org>
+
+       * config/rs6000/rs6000.c (altivec_expand_builtin): Call
+       expand_call to return a valid funciton instead of return
+       cosnt0_rtx/NULL_RTX if there was an error with the builtin.
+       (altivec_expand_ld_builtin): Ditto.
+       (rs6000_inner_target_options): If VSX is selected as a target
+       attribute or pragma, enable ALTIVEC also.
+       (rs6000_pragma_target_parse): Call rs6000_option_override_internal
+       to do all of the standard processing when switching options,
+       including redefining appropriate macros.
+
+       PR rtl-optimization/51469
+       * varasm.c (default_binds_local_p_1): If the symbol is a gnu
+       indirect function, mark the symbol as non-local.
+
+2011-12-09  H.J. Lu  <hongjiu.lu@intel.com>
+
+       PR bootstrap/51479
+       * Makefile.in (errors.o): Restored.
+
+2011-12-09  Richard Guenther  <rguenther@suse.de>
+
+       PR lto/48042
+       * tree.c (free_lang_data_in_decl): Remove freeing conditional
+       on debuginfo level.
+
+2011-12-09  Joern Rennecke  <joern.rennecke@embecosm.com>
+
+       PR middle-end/40154
+       * emit-rtl.c (set_dst_reg_note): New function.
+       * rtl.h (set_dst_reg_note): Declare.
+       * optabs.c (expand_binop, expand_absneg_bit): Use set_dst_reg_note.
+       (emit_libcall_block, expand_fix): Likewise.
+       * function.c (assign_parm_setup_reg, expand_function_start): Likewise.
+       * expmed.c (expand_mult_const, expand_divmod): Likewise.
+       * reload1.c (gen_reload): Likewise.
+
+       * dse.c (get_stored_val, get_call_args): Use gen_int_mode.
+       * expmed.c (expand_divmod): Likewise.
+       * combine.c (simplify_if_then_else): Likewise.
+
+2011-12-09  Kai Tietz  <ktietz@redhat.com>
+
+       * ira-color.c (print_hard_regs_subforest): Use
+       HOST_WIDEST_INT_PRINT_DEC instead of %lld.
+       (allocno_hard_regs): Change type of cost member to HOST_WIDEST_INT.
+       (add_allocno_hard_regs): Change type of argument cost
+       to HOST_WIDEST_INT.
+       * ira-conflict.c (build_conflict_bit_table): Replace use
+       of long-long by HOST_WIDEST_INT.
+
+2011-12-09  Georg-Johann Lay  <avr@gjlay.de>
+
+       PR target/51425
+       * config/avr/avr.md (config/avr/avr.md, *sbix_branch_tmp): Use
+       zero_extract:QIHI instead of zero_extract:HI.
+
+2011-12-09  Jakub Jelinek  <jakub@redhat.com>
+           Andrew Pinski  <apinski@cavium.com>
+
+       PR tree-optimization/51117
+       * tree-eh.c (optimize_clobbers): New function.
+       (execute_lower_eh_dispatch): Call it.
+
+2011-12-09  Richard Guenther  <rguenther@suse.de>
+
+       PR tree-optimization/51482
+       * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size):
+       Make sure to only create REAL_TYPE and INTEGER_TYPE component vectors.
+
+2011-12-09  Kai Tietz  <ktietz@redhat.com>
+
+       * implicit-zee.c (num_realized): Change type to long.
+       (num_ze_opportunities): Likewise.
+
+2011-12-08  Andrew Pinski  <apinski@cavium.com>
+
+       * config/mips/mips-cpus.def (octeon+): New CPU.
+       * config/mips/mips-tables.opt: Regenerate.
+       * config/mips/mips.h (MIPS_CPP_SET_PROCESSOR): Emit '+' as 'P'.
+
+2011-12-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+
+       PR middle-end/39976
+       * tree-ssa-dom.c (enum expr_kind): Add EXPR_PHI.
+       (struct hashable_expr): Add struct phi field.
+       (initialize_hash_element): Handle phis; change to use XCNEWVEC.
+       (hashable_expr_equal_p): Handle phis.
+       (iterative_hash_hashable_expr): Likewise.
+       (print_expr_hash_elt): Likewise.
+       (free_expr_hash_elt): Likewise.
+       (dom_opt_enter_block): Create equivalences from redundant phis.
+       (eliminate_redundant_computations): Handle redundant phis.
+       (lookup_avail_expr): Handle phis.
+
+2011-12-08  Jakub Jelinek  <jakub@redhat.com>
+
+       PR tree-optimization/51466
+       * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Also copy
+       TREE_SIDE_EFFECTS.
+
+2011-12-08  Richard Guenther  <rguenther@suse.de>
+
+       * tree-ssa-operands.c (add_stmt_operand): Do not mark stmts
+       volatile when processing operands of an ADDR_EXPR.
+       (get_indirect_ref_operands): Likewise.
+       (get_tmr_operands): Likewise.
+       (get_expr_operands): Likewise.
+
 2011-12-08  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 
        PR target/50395
@@ -7,8 +742,7 @@
 2011-12-08  Richard Guenther  <rguenther@suse.de>
 
        PR tree-optimization/49772
-       * tree-inline.c (optimize_inline_calls): Remove bail out
-       on errors.
+       * tree-inline.c (optimize_inline_calls): Remove bail out on errors.
 
 2011-12-08  Richard Guenther  <rguenther@suse.de>
 
        * config/avr/avr.c (avr_addrspace): New variable.
        (avr_out_lpm, avr_pgm_check_var_decl, avr_insert_attributes,
        avr_asm_named_section, avr_section_type_flags,
-       avr_asm_select_section, avr_addr_space_address_mode, 
+       avr_asm_select_section, avr_addr_space_address_mode,
        avr_addr_space_convert, avr_emit_movmemhi): Use it.
        (avr_addr_space_pointer_mode): Forward to avr_addr_space_address_mode.
        (avr_pgm_segment): Remove.
 2011-12-06  Richard Guenther  <rguenther@suse.de>
 
        PR middle-end/51436
-       * gimple-fold.c (gimplify_and_update_call_from_tree): Guard
-       vdef check for the fact we do not have virtual operands when
-       not optimizing.
+       * gimple-fold.c (gimplify_and_update_call_from_tree): Guard vdef check
+       for the fact we do not have virtual operands when not optimizing.
 
 2011-12-06  Richard Guenther  <rguenther@suse.de>
 
        PR tree-optimization/51245
        * tree-ssa-sccvn.c (vn_reference_lookup_or_insert_constant_for_pieces):
        New function.
-       (vn_reference_lookup_3): Use it.  Properly valueize all refs
-       we create.
+       (vn_reference_lookup_3): Use it.  Properly valueize all refs we create.
 
 2011-12-06  Iain Sandoe  <iains@gcc.gnu.org>
 
        (struct allocno_color_data): Add new member last_process.  Move
        profitable_hard_regs, hard_regs_node, and hard_regs_subnodes_start
        from object_color_data.
-       (object_color_data_t, object_color_data, OBJECT_COLOR_DATA):
-       Remove.
+       (object_color_data_t, object_color_data, OBJECT_COLOR_DATA): Remove.
        (curr_allocno_process): New static variable.
        (object_hard_regs_eq, object_hard_regs_htab): Rename to
        allocno_hard_regs_eq and allocno_hard_regs_htab.
        (add_new_object_hard_regs_node_to_forest): Rename to
        add_new_allocno_hard_regs_node_to_forest.
        (add_object_hard_regs_to_forest, collect_object_hard_regs_cover):
-       Rename to add_allocno_hard_regs_to_forest and collect_allocno_hard_regs_cover.
-       (setup_object_hard_regs_nodes_parent): Rename to setup_allocno_hard_regs_nodes_parent.
-       (remove_unused_object_hard_regs_nodes): Rename to remove_unused_allocno_hard_regs_nodes.
+       Rename to add_allocno_hard_regs_to_forest and
+       collect_allocno_hard_regs_cover.
+       (setup_object_hard_regs_nodes_parent): Rename to
+       setup_allocno_hard_regs_nodes_parent.
+       (remove_unused_object_hard_regs_nodes): Rename to
+       remove_unused_allocno_hard_regs_nodes.
        (enumerate_object_hard_regs_nodes, object_hard_regs_nodes_num):
-       Rename to enumerate_allocno_hard_regs_nodes and allocno_hard_regs_nodes_num.
+       Rename to enumerate_allocno_hard_regs_nodes and
+       allocno_hard_regs_nodes_num.
        (object_hard_regs_nodes, object_hard_regs_subnode_t): Rename to
        allocno_hard_regs_nodes and allocno_hard_regs_subnode_t.
        (object_hard_regs_subnode, object_hard_regs_subnodes): Rename to
        allocno_hard_regs_subnode and allocno_hard_regs_subnodes.
-       (object_hard_regs_subnode_index): Rename to allocno_hard_regs_subnode_index.
+       (object_hard_regs_subnode_index): Rename to
+       allocno_hard_regs_subnode_index.
        (setup_object_hard_regs_subnode_index): Rename to
        setup_allocno_hard_regs_subnode_index.
-       (get_object_hard_regs_subnodes_num): Rename to get_allocno_hard_regs_subnodes_num.
-       (form_object_hard_regs_nodes_forest): Rename to form_allocno_hard_regs_nodes_forest.
-       (finish_object_hard_regs_nodes_tree): Rename to form_allocno_hard_regs_nodes_forest
+       (get_object_hard_regs_subnodes_num): Rename to
+       get_allocno_hard_regs_subnodes_num.
+       (form_object_hard_regs_nodes_forest): Rename to
+       form_allocno_hard_regs_nodes_forest.
+       (finish_object_hard_regs_nodes_tree): Rename to
+       form_allocno_hard_regs_nodes_forest
        (finish_object_hard_regs_nodes_forest): Rename to
        finish_allocno_hard_regs_nodes_forest.
-       (setup_left_conflict_sizes_p): Use allocno data instead of object
-       ones.  Process conflict allocnos once.
+       (setup_left_conflict_sizes_p): Use allocno data instead of object ones.
+       Process conflict allocnos once.
        (update_left_conflict_sizes_p): Use allocno data instead of object
        ones.  Change prototype signature.
-       (empty_profitable_hard_regs): Use allocno data instead of object
-       ones.
+       (empty_profitable_hard_regs): Use allocno data instead of object ones.
        (setup_profitable_hard_regs): Ditto.
        (get_conflict_profitable_regs): Rename to
        get_conflict_and_start_profitable_regs.  Use allocno data for
        (struct vop_to_refs_elt, vtoe_hash, vtoe_eq, vtoe_free,
        record_vop_access, get_vop_accesses, get_vop_stores,
        add_vop_ref_mapping): Remove.
-       (create_vop_ref_mapping_loop): Adjust to simply record all
-       stores.
+       (create_vop_ref_mapping_loop): Adjust to simply record all stores.
        (analyze_memory_references): Adjust.
        (refs_independent_p): Check for not analyzable refs.
        (can_sm_ref_p): Likewise.
 
 2011-12-05  Richard Guenther  <rguenther@suse.de>
 
-       * tree-ssa.c (verify_ssa): Verify SSA names in the loop
-       over all SSA names.  Remove SSA operand checking, call
-       verify_ssa_operands.
+       * tree-ssa.c (verify_ssa): Verify SSA names in the loop over all SSA
+       names.  Remove SSA operand checking, call verify_ssa_operands.
        * tree-ssa-operands.h (verify_ssa_operands): Declare.
        * tree-ssa-operands.c (verify_ssa_operands): New function.
 
        (cgraph_make_edge_direct): Likewise.
        * gimple-streamer-in.c (input_gimple_stmt): Do not
        call gimple_call_set_cannot_inline.
-       * gimple.h (enum gf_mask): Remove GF_CALL_CANNOT_INLINE, shift
-       values.
+       * gimple.h (enum gf_mask): Remove GF_CALL_CANNOT_INLINE, shift values.
        (gimple_call_set_cannot_inline): Remove.
        (gimple_call_cannot_inline_p): Likewise.
        * ipa-inline-analysis.c (initialize_inline_failed): Look
        (coverage_begin_function): ... here.
        * coverage.c (struct function_list): Rename to ...
        (struct coverage_data): ... this.  Update all uses.
-       (gcov_info_var, gcov_fn_info_type, gcov_fn_info_ptr_type): New
-       globals.
+       (gcov_info_var, gcov_fn_info_type, gcov_fn_info_ptr_type): New globals.
        (bbg_file_opened, bbg_function_announced): Remove.
        (get_coverage_counts): Adjust message.
        (coverage_begin_ouput): Rename to ...
        (process_file): Call find_exception_blocks if necessary.
        (read_graph_file): Adjust.  Note if an exceptional edge is seen.
        (find_exception_blocks): New.
-       (add_line_counts): Set line's unexceptional flag if not
-       exceptional.
+       (add_line_counts): Set line's unexceptional flag if not exceptional.
        (output_branch_count): Note exceptional arcs, lines and blocks.
        * gcov-dump.c (tag_arcs): Decode arc flags.
        * doc/gcov.texi: Document '=====' lines.