+2011-10-13 Richard Henderson <rth@redhat.com>
+
+ * config/rs6000/altivec.md (vec_permv16qi): New pattern.
+
+ * config/rs6000/spu.md (vec_permv16qi): New pattern.
+
+2011-10-13 Jakub Jelinek <jakub@redhat.com>
+
+ * config/i386/sse.md (vec_set<mode>): Change V_128 iterator mode
+ to V.
+
+2011-10-13 Jakub Jelinek <jakub@redhat.com>
+ Richard Guenther <rguenther@suse.de>
+
+ * tree-ssa.c (maybe_optimize_var): Drop TREE_ADDRESSABLE
+ from vector or complex vars even if their DECL_UID is in not_reg_needs
+ bitmap.
+
+2011-10-13 Jakub Jelinek <jakub@redhat.com>
+
+ * config/i386/sse.md (reduc_umin_v8hi): New pattern.
+ * config/i386/i386.c (ix86_build_const_vector): Handle
+ also V32QI, V16QI, V16HI and V8HI modes.
+ (emit_reduc_half): New function.
+ (ix86_expand_reduc): Use phminposuw insn for V8HImode UMIN.
+ Use emit_reduc_half helper function.
+
+2011-10-13 Lawrence Crowl <crowl@google.com>
+ Diego Novillo <dnovillo@google.com>
+
+ * lto-streamer-in.c (input_struct_function_base): Factor out of ...
+ (input_function): ... here.
+ * lto-streamer-out.c (output_struct_function_base): Factor out of ...
+ (output_function): ... here.
+
+2011-10-13 Gabriel Charette <gchare@google.com>
+ Diego Novillo <dnovillo@google.com>
+
+ * streamer-hooks.h (struct streamer_hooks): Add hooks
+ input_location and output_location.
+ * lto-streamer-in.c (lto_input_location): Use
+ streamer_hooks.input_location, if set.
+ * lto-streamer-out.c (lto_output_location): Use
+ streamer_hooks.output_location, if set.
+
+2011-10-13 Richard Guenther <rguenther@suse.de>
+
+ PR tree-optimization/50712
+ * ipa-split.c (split_function): Always re-gimplify parameters
+ when they are not gimple vals before passing them. Properly
+ check for type compatibility.
+
+2011-10-13 Tom de Vries <tom@codesourcery.com>
+
+ * function.c (gimplify_parameters): Set number of arguments of call to
+ BUILT_IN_ALLOCA_WITH_ALIGN to 2.
+
+2011-10-13 Tom de Vries <tom@codesourcery.com>
+
+ * emit-rtl.c (set_mem_attributes_minus_bitpos): Set MEM_READONLY_P
+ for static const strings.
+ * varasm.c (build_constant_desc): Generate the memory location of the
+ constant using gen_const_mem.
+
+2011-10-13 Richard Guenther <rguenther@suse.de>
+
+ PR tree-optimization/50698
+ * tree-data-ref.c (split_constant_offset_1): Also process
+ offsets of &MEM.
+
+2011-10-12 David S. Miller <davem@davemloft.net>
+
+ * config/sparc/sparc.md (UNSPEC_FPMERGE): Delete.
+ (UNSPEC_MUL16AU, UNSPEC_MUL8, UNSPEC_MUL8SU, UNSPEC_MULDSU): New
+ unspecs.
+ (fpmerge_vis): Remove inaccurate comment, represent using vec_select
+ of a vec_concat.
+ (vec_interleave_lowv8qi, vec_interleave_highv8qi): New insns.
+ (fmul8x16_vis, fmul8x16au_vis, fmul8sux16_vis, fmuld8sux16_vis):
+ Reimplement as unspecs and remove inaccurate comments.
+ (vis3_shift_patname): New code attr.
+ (<vis3_shift_insn><vbits>_vis): Rename to "v<vis3_shift_patname><mode>3".
+ (vis3_addsub_ss_patname): New code attr.
+ (<vis3_addsub_ss_insn><vbits>_vis): Rename to
+ "<vis3_addsub_ss_patname><mode>3".
+ * config/sparc/sparc.c (sparc_vis_init_builtins): Update to
+ accommodate pattern name changes.
+
+ * config/sparc/sparc.h: Do not force TARGET_VIS3 and TARGET_FMAF
+ to zero when assembler lacks support for such instructions.
+ * config/sparc/sparc.c (sparc_option_override): Clear MASK_VIS3
+ and MASK_FMAF in defaults when assembler lacks necessary support.
+
+2011-10-12 Jakub Jelinek <jakub@redhat.com>
+
+ * config/i386/sse.md (vec_unpacks_lo_<mode>,
+ vec_unpacks_hi_<mode>, vec_unpacku_lo_<mode>,
+ vec_unpacku_hi_<mode>): Change VI124_128 mode to
+ VI124_AVX2.
+ * config/i386/i386.c (ix86_expand_sse_unpack): Handle
+ V32QImode, V16HImode and V8SImode for TARGET_AVX2.
+
+ * config/i386/sse.md (vec_avx2): New mode_attr.
+ (mulv16qi3): Macroize to cover also mulv32qi3 for
+ TARGET_AVX2 into ...
+ (mul<mode>3): ... this.
+
+ * config/i386/i386.md (UNSPEC_VPERMDI): Remove.
+ * config/i386/i386.c (ix86_expand_vec_perm): Handle
+ V16QImode and V32QImode for TARGET_AVX2.
+ (MAX_VECT_LEN): Increase to 32.
+ (expand_vec_perm_blend): Add support for 32-byte integer
+ vectors with TARGET_AVX2.
+ (valid_perm_using_mode_p): New function.
+ (expand_vec_perm_pshufb): Add support for 32-byte integer
+ vectors with TARGET_AVX2.
+ (expand_vec_perm_vpshufb2_vpermq): New function.
+ (expand_vec_perm_vpshufb2_vpermq_even_odd): New function.
+ (expand_vec_perm_even_odd_1): Handle 32-byte integer vectors
+ with TARGET_AVX2.
+ (ix86_expand_vec_perm_builtin_1): Try expand_vec_perm_vpshufb2_vpermq
+ and expand_vec_perm_vpshufb2_vpermq_even_odd.
+ * config/i386/sse.md (VEC_EXTRACT_EVENODD_MODE): Add for TARGET_AVX2
+ 32-byte integer vector modes.
+ (vec_pack_trunc_<mode>): Use VI248_AVX2 instead of VI248_128.
+ (avx2_interleave_highv32qi, avx2_interleave_lowv32qi): Remove pasto.
+ (avx2_pshufdv3, avx2_pshuflwv3, avx2_pshufhwv3): Generate
+ 4 new operands.
+ (avx2_pshufd_1, avx2_pshuflw_1, avx2_pshufhw_1): Don't use
+ match_dup, instead add 4 new operands and require they have
+ right cross-lane values.
+ (avx2_permv4di): Change into define_expand.
+ (avx2_permv4di_1): New instruction.
+ (avx2_permv2ti): Use nonimmediate_operand instead of register_operand
+ for "xm" constrained operand.
+ (VEC_PERM_AVX2): Add V32QI and V16QI for TARGET_AVX2.
+
+ * config/i386/sse.md (avx2_gathersi<mode>,
+ avx2_gatherdi<mode>, avx2_gatherdi<mode>256): Add clobber of
+ match_scratch, change memory_operand to register_operand,
+ add (mem:BLK (scratch)) use.
+ (*avx2_gathersi<mode>, *avx2_gatherdi<mode>,
+ *avx2_gatherdi<mode>256): Add clobber of match_scratch,
+ add earlyclobber to the output operand and match_scratch,
+ add (mem:BLK (scratch)) use, change the other mem to match_operand.
+ Use %p6 instead of %c6 in the pattern.
+ * config/i386/i386.c (ix86_expand_builtin): Adjust for
+ operand 2 being a Pmode register_operand instead of memory_operand.
+
+2011-10-12 Kai Tietz <ktietz@redhat.com>
+
+ * config/i386/i386.md (simple_return): Disable
+ if TARGET_SEH is active.
+
+2011-10-12 Steve Ellcey <sje@cup.hp.com>
+
+ * config/ia64/ia64.c (ia64_init_builtins): Fix unbalanced parentheses.
+
+2011-10-12 Richard Guenther <rguenther@suse.de>
+
+ * tree-ssa-alias.c (maybe_skip_until): Cache also at the point
+ of the first store we visit in a basic-block.
+ (get_continuation_for_phi): Search for a candidate VUSE that
+ might dominates all others. Do pairwise disambiguation against
+ that candidate.
+
+2011-10-12 Paul Koning <pkoning@gcc.gnu.org>
+
+ PR tree-optimization/50189
+ * tree-vrp.c (extract_range_from_assert): Use the type of
+ the variable, not the limit.
+
+2011-10-12 Richard Guenther <rguenther@suse.de>
+
+ PR tree-optimization/50700
+ * tree-object-size.c (addr_object_size): Simplify and treat
+ MEM_REF bases consistently.
+
+2011-10-12 Bernd Schmidt <bernds@codesourcery.com>
+
+ * function.c (prepare_shrink_wrap, bb_active_p): New function.
+ (thread_prologue_and_epilogue_insns): Use bb_active_p.
+ Call prepare_shrink_wrap, then recompute bb_active_p for the
+ last block.
+
+2011-10-12 Joseph Myers <joseph@codesourcery.com>
+
+ PR c/50565
+ * convert.c (convert_to_integer): Do not narrow operands of
+ pointer subtraction.
+
+2011-10-12 Nick Clifton <nickc@redhat.com>
+
+ * config/arm/arm.h (EMIT_EABI_ATTRIBUTE): New macro. Used to
+ emit a .eabi_attribute assembler directive, possibly with a
+ comment attached.
+ * config/arm/arm.c (arm_file_start): Use the new macro.
+ * config/arm/arm-c.c (arm_output_c_attributes): Likewise.
+
+2011-10-12 Georg-Johann Lay <avr@gjlay.de>
+
+ PR target/49939
+ * config/avr/avr.md (*movqi): Rename to movqi_insn.
+ (*call_insn): Rename to call_insn.
+ (*call_value_insn): Rename to call_value_insn.
+ * config/avr/avr.c (avr_2word_insn_p): New static function.
+ (jump_over_one_insn_p): Use it.
+
+2011-10-12 Richard Sandiford <richard.sandiford@linaro.org>
+
+ * expr.h (copy_blkmode_to_reg): Declare.
+ * expr.c (copy_blkmode_to_reg): New function.
+ (expand_assignment): Don't expand register RESULT_DECLs before
+ the lhs. Use copy_blkmode_to_reg to copy BLKmode values into a
+ RESULT_DECL register.
+ (expand_expr_real_1): Handle BLKmode decls when looking for promotion.
+ * stmt.c (expand_return): Move BLKmode-to-register code into
+ copy_blkmode_to_reg.
+
+2011-10-11 Eric Botcazou <ebotcazou@adacore.com>
+
+ PR target/49965
+ * config/sparc/sparc.md (mov<I:mode>cc): Do not save comparison code.
+ (mov<F:mode>cc): Likewise.
+
+2011-10-11 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
+
+ * tree-ssa-address.c (copy_ref_info): Remove copy of TREE_THIS_NOTRAP.
+
+2011-10-11 Michael Meissner <meissner@linux.vnet.ibm.com>
+
+ * tree.h (built_in_decls): Delete old interface with two parallel
+ arrays to hold standard builtin declarations, and replace it with
+ a function based interface that can support creating builtins on
+ the fly in the future. Change all uses, and poison the old
+ names. Make sure 0 is not a legitimate builtin index.
+ (implicit_built_in_decls): Ditto.
+ (built_in_info): Ditto.
+ (BUILTIN_VALID_P): Ditto.
+ (builtin_decl_explicit): Ditto.
+ (builtin_decl_implicit): Ditto.
+ (set_builtin_decl): Ditto.
+ (set_builtin_decl_implicit_p): Ditto.
+ (builtin_decl_explicit_p): Ditto.
+ (builtin_decl_implicit_p): Ditto.
+ * tree-complex.c (expand_complex_libcall): Ditto.
+ * tree-loop-distribution.c (generate_memset_zero): Ditto.
+ * tree-ssa-strlen.c (get_string_length): Ditto.
+ (handle_builtin_strcpy): Ditto.
+ (handle_builtin_strcat): Ditto.
+ * tree.c (iterative_hash_expr): Ditto.
+ (local_define_builtin): Ditto.
+ (build_common_builtin_nodes): Ditto.
+ * builtins.c (built_in_decls): Ditto.
+ (implicit_built_in_decls): Ditto.
+ (built_in_info): Ditto
+ (expand_builtin_classify_type): Ditto.
+ (mathfn_built_in_1): Ditto.
+ (expand_builtin_cexpi): Ditto.
+ (expand_builtin_mempcpy_args): Ditto.
+ (expand_builtin_stpcpy): Ditto.
+ (gimplify_va_arg_expr): Ditto.
+ (expand_builtin_sync_operation): Ditto.
+ (build_builtin_expect_predicate): Ditto.
+ (fold_builtin_memory_op): Ditto.
+ (fold_builtin_strcpy): Ditto.
+ (fold_builtin_stpcpy): Ditto.
+ (fold_builtin_strncpy): Ditto.
+ (fold_builtin_interclass_mathfn): Ditto.
+ (fold_builtin_classify): Ditto.
+ (fold_builtin_2): Ditto.
+ (fold_builtin_strstr): Ditto.
+ (fold_builtin_strrchr): Ditto.
+ (fold_builtin_strpbrk): Ditto.
+ (fold_builtin_strcat): Ditto.
+ (fold_builtin_strncat): Ditto.
+ (fold_builtin_strcspn): Ditto.
+ (fold_builtin_fputs): Ditto.
+ (fold_builtin_sprintf): Ditto.
+ (fold_builtin_snprintf): Ditto.
+ (expand_builtin_memory_chk): Ditto.
+ (fold_builtin_memory_chk): Ditto.
+ (fold_builtin_stxcpy_chk): Ditto.
+ (fold_builtin_strncpy_chk): Ditto.
+ (fold_builtin_strcat_chk): Ditto.
+ (fold_builtin_strncat_chk): Ditto.
+ (fold_builtin_sprintf_chk_1): Ditto.
+ (fold_builtin_snprintf_chk_1): Ditto.
+ (fold_builtin_printf): Ditto.
+ (fold_builtin_fprintf): Ditto.
+ (fold_call_stmt): Ditto.
+ (set_builtin_user_assembler_name): Ditto.
+ * tree-emutls.c (emutls_common_1): Ditto.
+ * omp-low.c (scan_omp): Ditto.
+ (lower_rec_input_clauses): Ditto.
+ (lower_reduction_clauses): Ditto.
+ (expand_parallel_call): Ditto.
+ (expand_task_call): Ditto.
+ (maybe_catch_exception): Ditto.
+ (optimize_omp_library_calls): Ditto.
+ (expand_omp_for_generic): Ditto.
+ (expand_omp_for_static_nochunk): Ditto.
+ (expand_omp_for_static_chunk): Ditto.
+ (expand_omp_sections): Ditto.
+ (expand_omp_atomic_fetch_op): Ditto.
+ (expand_omp_atomic_pipeline): Ditto.
+ (expand_omp_atomic_mutex): Ditto.
+ (lower_omp_single_simple): Ditto.
+ (lower_omp_single_copy): Ditto.
+ (lower_omp_master): Ditto.
+ (lower_omp_ordered): Ditto.
+ (lower_omp_critical): Ditto.
+ * tree-ssa-ccp.c (optimize_stdarg_builtin): Ditto.
+ * builtins.c (DEF_BUILTIN_STUB): Ditto.
+ (BUILT_IN_NONE): Ditto.
+ * tree-ssa-math-opts.c (execute_optimize_bswap): Ditto.
+ * gimple-low.c (lower_function_body): Ditto.
+ (lower_builtin_setjmp): Ditto.
+ * c-decl.c (merge_decls): Ditto.
+ * tree-eh.c (lower_resx): Ditto.
+ (lower_resx): Ditto.
+ (lower_eh_dispatch): Ditto.
+ * function (gimplify_parameters): Ditto.
+ * c-typeck.c (build_function_call_vec): Ditto.
+ * gimplify.c (build_stack_save_restore): Ditto.
+ (gimplify_vla_decl): Ditto.
+ (gimplify_modify_expr_to_memcpy): Ditto.
+ (gimplify_modify_expr_to_memset): Ditto.
+ (gimplify_variable_sized_compare): Ditto.
+ (gimplify_function_tree): Ditto.
+ * calls.c (emit_call_1): Ditto.
+ * tree-ssa-forprop.c (simplify_builtin_call): Ditto.
+ * tree-nested.c (convert_nl_goto_reference): Ditto.
+ (convert_tramp_reference_op): Ditto.
+ (finalize_nesting_tree_1): Ditto.
+ * tree-ssa-loop-prefetch.c (issue_prefetch_ref): Ditto.
+ (tree_ssa_prefetch_arrays): Ditto.
+ * tree-streamer-in.c (streamer_get_builtin_tree): Ditto.
+ * system.h (built_in_decls): Ditto.
+ (implicit_built_in_decls): Ditto.
+ * tree-vect-generic.c (expand_vector_operations_1): Ditto.
+ * config/sparc/sparc.c (sparc_gimplify_va_arg): Ditto.
+ * config/i386/i386.c (ix86_gimplify_va_arg): Ditto.
+ (ix86_veclibabi_svml): Ditto.
+ (ix86_veclibabi_acml): Ditto.
+ * config/vms/vms.c (vms_patch_builtins): Ditto.
+ * config/ia64/ia64.c (ia64_init_builtins): Ditto.
+ * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Ditto.
+ (rs6000_builtin_vectorized_libmass): Ditto.
+ (rs6000_init_builtins): Ditto.
+ * config/darwin.c (darwin_override_options): Ditto.
+ (darwin_patch_builtin): Ditto.
+ (darwin_rename_builtins): Ditto.
+ * config/pa/pa.c (pa_init_builtins): Ditto.
+
+2011-10-11 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
+
+ * tree.h (copy_ref_info): Expose existing function.
+ * tree-ssa-loop-ivopts.c (copy_ref_info): Move function to...
+ * tree-ssa-address.c (copy_ref_info): ...here, and remove static token.
+
+2011-10-11 Georg-Johann Lay <avr@gjlay.de>
+
+ * config/avr/avr-protos.h (avr_mode_code_base_reg_class): New prototype.
+ (avr_regno_mode_code_ok_for_base_p): New prototype.
+ * config/avr/avr.h (BASE_REG_CLASS): Remove.
+ (REGNO_OK_FOR_BASE_P): Remove.
+ (REG_OK_FOR_BASE_NOSTRICT_P): Remove.
+ (REG_OK_FOR_BASE_STRICT_P): Remove.
+ (MODE_CODE_BASE_REG_CLASS): New define.
+ (REGNO_MODE_CODE_OK_FOR_BASE_P): New define.
+ * config/avr/avr.c (avr_mode_code_base_reg_class): New function.
+ (avr_regno_mode_code_ok_for_base_p): New function.
+ (avr_reg_ok_for_addr_p): New static function.
+ (avr_legitimate_address_p): Use it. Beautify.
+
+2011-10-11 Georg-Johann Lay <avr@gjlay.de>
+
+ PR target/50447
+ * config/avr/avr.md (cc): Add out_plus attribute alternative.
+ (addsi3): Use it. Adapt avr_out_plus to new prototype. Use
+ avr_out_plus for all CONST_INT addends.
+ * config/avr/avr-protos.h (avr_out_plus): Change prototype.
+ * config/avr/avr.c (notice_update_cc): Call avr_out_plus on
+ CC_OUT_PLUS.
+ (avr_out_plus_1): Change prototype and report effect on cc0.
+ (avr_out_plus): Ditto.
+ (adjust_insn_length): Adapt call to avr_out_plus to new prototype.
+
+2011-10-11 H.J. Lu <hongjiu.lu@intel.com>
+
+ * config/i386/i386.c (ix86_expand_special_args_builtin): Remove
+ the extra break.
+
+2011-10-11 Artjoms Sinkarovs <artyom.shinkaroff@gmail.com>
+
+ * doc/invoke.texi: Document new warning.
+ * common.opt (Wvector-operation-performance): Define new warning.
+ * tree-vect-generic.c (expand_vector_piecewise): Warn about expanded
+ vector operation.
+ (exapnd_vector_parallel): Warn about expanded vector operation.
+ (lower_vec_shuffle): Warn about expanded vector operation.
+ * c-typeck.c (c_build_vec_perm_expr): Store correct location
+ when creating VEC_PERM_EXPR.
+
+2011-10-11 Richard Guenther <rguenther@suse.de>
+
+ PR tree-optimization/50204
+ * tree-ssa-alias.c (get_continuation_for_phi_1): Split out
+ two argument handling from ...
+ (get_continuation_for_phi): ... here. Handle arbitrary number
+ of PHI args.
+
+2011-10-11 Paolo Carlini <paolo.carlini@oracle.com>
+
+ PR c++/33067
+ * c-family/c-pretty-print.c (pp_c_floating_constant): Output
+ max_digits10 (in the ISO C++ WG N1822 sense) decimal digits.
+
+2011-10-11 Richard Sandiford <richard.sandiford@linaro.org>
+
+ * modulo-sched.c: Fix comment typo. Mention the possibility
+ of using scheduling windows of II+1 cycles.
+
+2011-10-11 Tristan Gingold <gingold@adacore.com>
+
+ * doc/invoke.texi (C Dialect Options): Document
+ -fallow-parameterless-variadic-functions.
+ * c-parser.c (c_parser_parms_list_declarator): Handle it.
+
+2011-10-10 Georg-Johann Lay <avr@gjlay.de>
+
+ * config/avr/avr.c (avr_option_override): Set
+ flag_omit_frame_pointer to 0 if frame pointer is needed for
+ unwinding.
+
2011-10-10 Uros Bizjak <ubizjak@gmail.com>
PR bootstrap/50665
PR middle-end/50527
* tree.c (build_common_builtin_nodes): Add local_define_builtin for
+ BUILT_IN_ALLOCA_WITH_ALIGN. Mark that BUILT_IN_ALLOCA_WITH_ALIGN can
+ throw.
* builtins.c (expand_builtin_alloca): Handle BUILT_IN_ALLOCA_WITH_ALIGN
+ arglist. Set align for BUILT_IN_ALLOCA_WITH_ALIGN.
+ (expand_builtin): Handle BUILT_IN_ALLOCA_WITH_ALIGN.
+ (is_inexpensive_builtin): Handle BUILT_IN_ALLOCA_WITH_ALIGN.
* tree-ssa-ccp.c (evaluate_stmt): Set align for
+ BUILT_IN_ALLOCA_WITH_ALIGN.
+ (fold_builtin_alloca_for_var): Rename to ...
+ (fold_builtin_alloca_with_align): Set DECL_ALIGN from 2nd
+ BUILT_IN_ALLOCA_WITH_ALIGN argument.
+ (ccp_fold_stmt): Try folding BUILT_IN_ALLOCA_WITH_ALIGN using
+ fold_builtin_alloca_with_align.
+ (optimize_stack_restore): Handle BUILT_IN_ALLOCA_WITH_ALIGN.
* builtins.def (BUILT_IN_ALLOCA_WITH_ALIGN): Declare using
+ DEF_BUILTIN_STUB.
* ipa-pure-const.c (special_builtin_state): Handle
+ BUILT_IN_ALLOCA_WITH_ALIGN.
* tree-ssa-alias.c (ref_maybe_used_by_call_p_1)
+ (call_may_clobber_ref_p_1): Same.
* function.c (gimplify_parameters): Lower vla to
+ BUILT_IN_ALLOCA_WITH_ALIGN.
* gimplify.c (gimplify_vla_decl): Same.
* cfgexpand.c (expand_call_stmt): Handle BUILT_IN_ALLOCA_WITH_ALIGN.
* tree-mudflap.c (mf_xform_statements): Same.
* tree-ssa-dce.c (mark_stmt_if_obviously_necessary)
+ (mark_all_reaching_defs_necessary_1, propagate_necessity): Same.
* varasm.c (incorporeal_function_p): Same.
* tree-object-size.c (alloc_object_size): Same.
* gimple.c (gimple_build_call_from_tree): Same.
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