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* defaults.h (CONSTANT_ADDRESS_P): Provide a default definition.
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
index 89051c8..8afa6d1 100644 (file)
@@ -1,3 +1,580 @@
+2009-11-04  Nick Clifton  <nickc@redhat.com>
+
+       * defaults.h (CONSTANT_ADDRESS_P): Provide a default definition.
+       Make sure that it does not allow CONST_DOUBLEs.
+       * doc/tm.texi (CONSTANT_ADDRESS_P): Update description.
+       * config/avr/avr.h (CONSTANT_ADDRESS_P): Delete.
+       * config/bfin/bfin.h (CONSTANT_ADDRESS_P): Delete.
+       * config/cris/cris.h (CONSTANT_ADDRESS_P): Delete.
+       * config/fr30/fr30.h (CONSTANT_ADDRESS_P): Delete.
+       * config/frv/frv.h (CONSTANT_ADDRESS_P): Delete.
+       * config/m32c/m32c.h (CONSTANT_ADDRESS_P): Delete.
+       * config/m68hc11/m68hc11.h (CONSTANT_ADDRESS_P): Delete.
+       * config/mep/mep.h (CONSTANT_ADDRESS_P): Delete.
+       * config/mn10300/mn10300.h (CONSTANT_ADDRESS_P): Delete.
+       * config/moxie/moxie.h (CONSTANT_ADDRESS_P): Delete.
+       * config/pdp11/pdp11.h (CONSTANT_ADDRESS_P): Delete.
+       * config/picochip/picochip.h (CONSTANT_ADDRESS_P): Delete.
+       * config/score/score.h (CONSTANT_ADDRESS_P): Delete.
+       * config/stormy16/stormy16.h (CONSTANT_ADDRESS_P): Delete.
+
+2009-11-04  Richard Guenther  <rguenther@suse.de>
+
+       PR tree-optimization/41919
+       * tree-vrp.c (test_for_singularity): Properly compare values.
+
+2009-11-04  Revital Eres  <eres@il.ibm.com>
+
+       * tree-vect-data-refs.c (vect_enhance_data_refs_alignment):
+       Consider peeling for alignment only for stores and remove
+       redundant assignment.
+
+2009-11-04  Maxim Kuvyrkov  <maxim@codesourcery.com>
+
+       PR target/41302
+       * config/m68k/m68k.c (m68k_reg_present_p): New static function.
+       (m68k_ok_for_sibcall_p): Handle different result return locations.
+
+2009-11-04  Richard Guenther  <rguenther@suse.de>
+
+       * c-opts.c (c_common_post_options): Move LTO option processing
+       code ...
+       * opts.c (decode_options): ... here.
+
+2009-11-04  Jakub Jelinek  <jakub@redhat.com>
+
+       * c-common.c (fold_offsetof_1): Use %wd instead of
+       HOST_WIDE_INT_PRINT_DEC.
+
+2009-11-04  Maciej W. Rozycki  <macro@linux-mips.org>
+
+       * config/vax/linux.h (TARGET_OS_CPP_BUILTINS): Don't define
+       __pic__ or __PIC__.
+
+2009-11-04  Maciej W. Rozycki  <macro@linux-mips.org>
+
+       * config.gcc (vax-*-linux*): Keep the original contents of
+       tmake_file while adding vax/t-linux.
+
+2009-11-03  Eric Botcazou  <ebotcazou@adacore.com>
+
+       PR target/10127
+       PR ada/20548
+       * expr.h (STACK_CHECK_PROBE_INTERVAL): Delete.
+       (STACK_CHECK_PROBE_INTERVAL_EXP): New macro.
+       (STACK_CHECK_MOVING_SP): Likewise.
+       * system.h (STACK_CHECK_PROBE_INTERVAL): Poison it.
+       * doc/tm.texi (Stack Checking): Delete STACK_CHECK_PROBE_INTERVAL.
+       Document STACK_CHECK_PROBE_INTERVAL_EXP and STACK_CHECK_MOVING_SP.
+       * doc/md.texi (Standard Pattern Names): Tweak entry of CHECK_STACK.
+       Document PROBE_STACK.
+       * explow.c (anti_adjust_stack_and_probe): New function.
+       (allocate_dynamic_stack_space): Do not directly allocate space if
+       STACK_CHECK_MOVING_SP, instead invoke above function.
+       (emit_stack_probe): Handle probe_stack insn.
+       (PROBE_INTERVAL): New macro.
+       (STACK_GROW_OPTAB): Likewise.
+       (STACK_GROW_OFF): Likewise.
+       (probe_stack_range): Use Pmode and memory_address consistently.  Fix
+       loop condition in the small constant case.  Rewrite in the general
+       case to be immune to wraparounds.  Make sure the address of probes
+       is valid.  Try to use [base + disp] addressing mode if possible.
+       * ira.c (setup_eliminable_regset): Set frame_pointer_needed if stack
+       checking is enabled and STACK_CHECK_MOVING_SP.
+       * rtlanal.c (may_trap_p_1) <MEM>: If stack checking is enabled,
+       return 1 for volatile references to the stack pointer.
+       * tree.c (build_common_builtin_nodes): Do not set ECF_NOTHROW on
+       __builtin_alloca if stack checking is enabled.
+       * unwind-dw2.c (uw_identify_context): Take into account whether the
+       context is that of a signal frame or not.
+       * config/i386/linux.h (STACK_CHECK_MOVING_SP): Define to 1.
+       * config/i386/linux64.h (STACK_CHECK_MOVING_SP): Likewise.
+
+2009-11-03  Jakub Jelinek  <jakub@redhat.com>
+
+       PR rtl-optimization/41917
+       * rtlanal.c (num_sign_bit_copies1) <case UMOD>: If sign bit of second
+       operand isn't known to be 0, return 1.
+
+2009-11-03  Richard Sandiford  <rdsandiford@googlemail.com>
+
+       * config/mips/mips.md: Fix typos.
+
+2009-11-03  Richard Sandiford  <rdsandiford@googlemail.com>
+
+       * doc/invoke.texi: Fix typo.
+
+2009-11-03  Paul Brook  <paul@codesourcery.com>
+
+       * config/arm/neon.ml (vectype): Add T_floatSF.
+       (string_of_vectype): Ditto.
+       * config/arm/neon-gen.ml (signed_ctype): Add T_floatSF.
+       (deftypes): Use float for float32_t.
+       * config/arm/arm_neon.h: Regenerate.
+
+2009-11-03  Nick Clifton  <nickc@redhat.com>
+           Kevin Buettner  <kevinb@redhat.com>
+
+       * config/rx/predicates.md (rx_store_multiple_vector): Reverse
+       order of expected registers.
+       (rx_load_multiple_vector): Likewise.
+       (rx_rtsd_vector): Likewise.
+       * config/rx/rx.c (rx_cpu_type): New variable.
+       (rx_print_operand): Fix bug printing 64-bit constant values.
+       (rx_emit_stack_pushm): Reverse order of pushed registers.
+       (gen_rx_store_vector): Likewise.
+       (is_fast_interrupt_func): Only accept "fast_interrupt" as the
+       attribute name.
+       (is_exception_func): Rename to is_interrupt_func and only accept
+       "interrupt" as the attribute name.
+       (rx_get_stack_layout): Use new function name.
+       (rx_func_attr_inlinable): Likewise.
+       (rx_attribute_table): Remove "exception".
+       (rx_expand_prologue): If necessary push the accumulator register
+       in the prologue of interrupt functions.
+       (rx_expand_epilogue): If necessary pop the accumulator.
+       (rx_builtins): Add RX_BUILTIN_MVTIPL.
+       (rx_expand_builtin_stz): Remove.
+       (rx_expand_builtin_mvtipl): New function.
+       (rx_init_builtins): Handle RX_BUILTIN_MVTIPL.
+       (rx_expand_builtin): Likewise.
+       (rx_enable_fpu): New variable.
+       (rx_handle_option): Handle -fpu, -nofpu, -mcpu and -patch.
+       * config/rx/rx.h (TARGET_CPU_CPP_BUILTINS): Assert machine based
+       on rx_cpu_type.  Define __RX_FPU_INSNS__ if FPU insns are allowed.
+       (enum rx_cpu_types): Define.
+       (ASM_SPEC): Pass -m32bit-doubles on to assembler.
+       (INCOMING_FRAME_SP_OFFSET): Define.
+       (ARG_POINTER_CFA_OFFSET): Define.
+       (FRAME_POINTER_CFA_OFFSET): Define.
+       (OVERRIDE_OPTIONS): Enable fast math if RX FPU insns are enabled.
+       (ALLOW_RX_FPU_INSNS): Define.
+       * config/rx/rx.md: Test ALLOW_RX_FPU_INSNS instead of
+       fast_math_flags_set_p.
+       (UNSPEC_BUILTIN_MVTIPL): Define.
+       (revl): Rename to bswapsi2.
+       (bswaphi2): New pattern.
+       (mvtachi): Mark as volatile because it uses a register unknown to GCC.
+       (mvtaclo): Likewise.
+       (racw): Likewise.
+       (mvtc): Remove clobber of cc0.
+       (mvtcp): Delete.
+       (opecp): Delete.
+       * config/rx/rx.opt (mieee): Remove.
+       (fpu): Add.
+       (nofpu): Add.
+       (mcpu=): Add.
+       (patch=): Add.
+       (msave-acc-in-interrupts): Add.
+       * config/rx/t-rx (MULTILIB_OPTIONS): Change default to 64bit doubles.
+       (MULTILIB_DIRS): Likewise.
+       (MULTILIB_MATCHES): Treat -fpu as an alias for -m32bit-doubles.
+       * doc/extend.texi: Remove description of "exception" function
+       attribute.
+       * doc/invoke.texi: Document -fpu, -nofpu, -mcpu=, -patch= and
+       -msave-acc-in-interrupts options.
+
+2009-11-03  Richard Guenther  <rguenther@suse.de>
+
+       * c-common.c (fold_offsetof_1): Use HOST_WIDE_INT_PRINT_DEC.
+
+2009-11-03  Dodji Seketeli  <dodji@redhat.com>
+
+       PR c++/38699
+       * c-common.c (fold_offsetof_1): Issue errors when the member designator
+       of the offsetof expression is not legitimate.
+
+2009-11-03  Uros Bizjak  <ubizjak@gmail.com>
+
+       * config/i386/i386.md (*call_value_1_rex64_ms_sysv): Use register
+       names instead of numerical constants.
+       (sse_prologue_save): Ditto.
+       (*sse_prologue_save_insn): Ditto.
+
+2009-11-03  Uros Bizjak  <ubizjak@gmail.com>
+
+       PR target/41900
+       * config/i386/i386.h (ix86_arch_indices) <X86_ARCH_CALL_ESP>: New.
+       (TARGET_CALL_ESP): New define.
+       * config/i386/i386.c (initial_ix86_tune_features): Initialize
+       X86_ARCH_CALL_ESP.
+       * config/i386/i386.md (*call_pop_1_esp, *call_1_esp,
+       *call_value_pop_1_esp, *call_value_1_esp): Rename from *call_pop_1,
+       *call_1, *call_value_pop_1 and *call_value_1.  Depend on
+       TARGET_CALL_ESP.
+       (*call_pop_1, *call_1, *call_value_pop_1, *call_value_1):
+       New patterns, use "lsm" as operand 1 constraint.
+       * config/i386/predicates.md (call_insn_operand): Depend on
+       index_register_operand for !TARGET_CALL_ESP to avoid %esp register.
+
+2009-11-02  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
+
+       PR tree-optimization/41857
+       * tree-flow.h (rewrite_use_address): Add BASE_HINT argument.
+       * tree-ssa-loop-ivopts.c (rewrite_use_address): Pass base hint
+       to create_mem_ref.
+       * tree-ssa-address.c (move_hint_to_base): New function.
+       (most_expensive_mult_to_index): Add TYPE argument.  Use mode and
+       address space associated with TYPE.
+       (addr_to_parts): Add TYPE and BASE_HINT arguments.  Pass TYPE to
+       most_expensive_mult_to_index.  Call move_hint_to_base.
+       (create_mem_ref): Add BASE_HINT argument.  Pass BASE_HINT and
+       TYPE to addr_to_parts.
+
+2009-11-02  Martin Jambor  <mjambor@suse.cz>
+
+       PR tree-optimization/41750
+       * tree-sra.c (analyze_modified_params): Loop over all
+       representatives of components of a parameter.
+
+2009-11-02  Jakub Jelinek  <jakub@redhat.com>
+
+       PR tree-optimization/41841
+       * ipa-struct-reorg.c (build_data_structure): Don't attempt to look at
+       local variables of not yet materialized clones.
+
+       PR debug/41893
+       * cfgexpand.c (expand_debug_expr): Don't attempt to create DECL_RTL
+       for a VOIDmode variable.
+
+       PR c++/41774
+       * c-pragma.c (visstack): Change into vector of ints rather than
+       enum symbol_visibility.
+       (push_visibility): Add kind argument, push default_visibility together
+       with kind.
+       (pop_visibility): Add kind argument, return true if successful, fail
+       if visibility stack is empty or if stack top is of different kind.
+       (handle_pragma_visibility): Don't check length of visstack, instead
+       call pop_visibility and issue diagnostics if it failed.  Pass 0
+       as last argument to push_visibility and pop_visibility.
+       * c-pragma.h (push_visibility): Add kind argument.
+       (pop_visibility): Likewise.  Return bool instead of void.
+
+2009-11-01  Eric Botcazou  <ebotcazou@adacore.com>
+
+       * tree.def (TARGET_MEM_REF): Update comment.
+       * alias.c (get_alias_set): Retrieve the original memory reference for
+       a TARGET_MEM_REF before proceeding.
+
+2009-10-31  Anatoly Sokolov  <aesok@post.ru>
+
+       * config/frv/frv.c (frv_function_value, frv_libcall_value,
+       frv_function_value_regno_p): New functions.
+       (TARGET_FUNCTION_VALUE, TARGET_LIBCALL_VALUE): Declare.
+       * config/frv/frv.h: (FUNCTION_VALUE, LIBCALL_VALUE): Remove.
+       (FUNCTION_VALUE_REGNO_P): Redefine, use frv_function_value_regno_p.
+       * config/frv/frv-protos.h (frv_function_value_regno_p): Declare.
+
+2009-10-31  Anatoly Sokolov  <aesok@post.ru>
+
+       * config/mn10300/mn10300.c (mn10300_function_value): Make static, add
+       new 'outgoing' argument.
+       (mn10300_libcall_value, mn10300_function_value_regno_p): New functions.
+       (TARGET_FUNCTION_VALUE, TARGET_LIBCALL_VALUE): Declare.
+       * config/mn10300/mn10300.h: (FUNCTION_VALUE, FUNCTION_OUTGOING_VALUE,
+       LIBCALL_VALUE): Remove.
+       (FUNCTION_VALUE_REGNO_P): Redefine, use mn10300_function_value_regno_p.
+       * config/mn10300/mn10300-protos.h (mn10300_function_value): Remove.
+       (mh10300_function_value_regno_p): Declare.
+
+2009-10-31  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
+
+        * config/arm/cortex-a9.md: New - integer pipeline description.
+
+2009-10-31  Eric Botcazou  <ebotcazou@adacore.com>
+
+       * tree-ssa-sccvn.c (vn_reference_lookup_3): Bail out instead of
+       aborting if the sizes of the two references don't match.
+
+2009-10-31  Toon Moene  <toon@moene.org>
+
+       * ipa-inline.c (cgraph_decide_inlining):
+       Include reason for not inlining called-once functions in dump file.
+
+2009-10-30  Daniel Gutson  <dgutson@codesourcery.com>
+
+       * config/arm/linux-eabi.h (LINK_SPEC): BE8_LINK_SPEC added.
+       * config/arm/bpapi.h (BE8_LINK_SPEC): New define.
+       (LINK_SPEC): BE_LINK_SPEC added.
+
+2009-10-30  Richard Guenther  <rguenther@suse.de>
+
+       PR lto/41858
+       * lto-streamer.h (struct lto_file_decl_data): Remove fd member.
+
+2009-10-30  Nathan Sidwell  <nathan@codesourcery.com>
+
+       * target-def.h (TARGET_ASM_TTYPE): Correct typo of TARGET_ARM_TTYPE.
+       * config/arm/unwind-arm.c (__gnu_Unwind_Backtrace): Remove unused
+       label.
+
+2009-10-30  Martin Jambor  <mjambor@suse.cz>
+
+       * tree-sra.c (build_ref_for_offset_1): Remove a comment.
+
+2009-10-30  H.J. Lu  <hongjiu.lu@intel.com>
+
+       PR target/40838
+       * cfgexpand.c (expand_stack_alignment): Call update_stack_boundary
+       first.  Move assert on stack_alignment_estimated just before
+       setting stack_realign_needed.
+       (gimple_expand_cfg): Initialize stack_alignment_estimated to 0.
+       Don't call update_stack_boundary.
+
+       * config/i386/i386.c (ix86_minimum_incoming_stack_boundary): New.
+       (verride_options): Don't check ix86_force_align_arg_pointer here.
+       (ix86_function_ok_for_sibcall): Use it.
+       (ix86_update_stack_boundary): Likewise.
+
+       * config/i386/i386.h (STACK_REALIGN_DEFAULT): Update comments.
+
+2009-10-30  Richard Earnshaw  <rearnsha@arm.com>
+
+       * arm.md (QHSI): New mode iterator.
+       (movqi): If generating for thumb, then truncate any immediate to
+       8 bits.
+       * thumb2.md (thumb2_movsi_shortim and peephole2 generator): Replace
+       with...
+       (thumb2_mov<mode>_shortim and peephole2 generator): ... iterator based
+       version.
+
+2009-10-29  Cary Coutant  <ccoutant@google.com>
+
+       PR debug/41700
+       * dwarf2out.c (dwarf2_debug_hooks): Add entries for new hook (two
+       locations in the source).
+       (store_vcall_insn): New function.
+       (lookup_vcall_insn): New function.
+       (dwarf2out_virtual_call_token): Use store_vcall_insn.
+       (dwarf2out_copy_call_info): New function.
+       (dwarf2out_virtual_call): Use lookup_vcall_insn.
+       * emit-rtl.c (try_split): Call copy_call_info debug hook.
+       * debug.h (struct gcc_debug_hooks): Add copy_call_info hook.
+       * debug.c (do_nothing_debug_hooks): Add dummy entry for new hook.
+       (debug_nothing_rtx_rtx): New dummy hook.
+       * dbxout.c (dbx_debug_hooks): Add dummy entry for new hook.
+       (xcoff_debug_hooks): Likewise.
+       * sdbout.c (sdb_debug_hooks): Likewise.
+       * vmsdbgout.c (vmsdbg_debug_hooks): Likewise.
+
+2009-10-29  David Daney  <ddaney@caviumnetworks.com>
+
+       * doc/invoke.texi (mmcount-ra-address): Document new command line
+       option.
+       * config/mips/mips.opt (mmcount-ra-address): New option.
+       * config/mips/mips-protos.h (mips_function_profiler): Declare new
+       function.
+       * config/mips/mips.c (struct mips_frame_info): Add ra_fp_offset
+       member.
+       (mips_for_each_saved_gpr_and_fpr): Set ra_fp_offset.
+       (mips_function_profiler): Moved from FUNCTION_PROFILER, and
+       rewritten.
+       * config/mips/mips.h (FUNCTION_PROFILER): Body of macro moved to
+       mips_function_profiler.
+
+2009-10-29  Steve Ellcey  <sje@cup.hp.com>
+
+       PR middle-end/37565
+       PR target/38018
+       * doc/tm.texi (OVERRIDE_OPTIONS): Update.
+       (TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE): New.
+       * optc-gen.awk (cl_target_option_restore): Include call to
+       targetm.override_options_after_change.
+       * target-def.h (TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE): New.
+       * target.h (override_options_after_change): New.
+       * c-common.c (parse_optimize_options): Call
+       targetm.override_options_after_change.
+       * config/ia64/ia64.c (TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE): New.
+       (ia64_override_options_after_change): New.
+       (ia64_override_options) Add call to above.
+
+2009-10-29  Michael Matz  <matz@suse.de>
+
+       * tree-ssa-math-opts.c (execute_convert_to_rsqrt): Remove.
+       (gate_convert_to_rsqrt): Ditto.
+       (pass_convert_to_rsqrt): Ditto.
+       * tree-pass.h (pass_convert_to_rsqrt): Don't declare.
+       * passes.c (init_optimization_passes): Don't add pass_convert_to_rsqrt
+       to pass list.
+
+       * config/i386/i386.c (ix86_emit_swdivsf): Change evaluation order.
+
+2009-10-29  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
+
+       * config/arm/arm.c (find_best_start): Fix type of remainder to be
+       unsigned.
+
+2009-10-29  Martin Jambor  <mjambor@suse.cz>
+
+       PR tree-optimization/41775
+       * tree-sra.c (build_ref_for_offset): Unshare *expr if not NULL.
+       (generate_subtree_copies): Do not unshare agg.
+       (load_assign_lhs_subreplacements): Do not unshare rhs.
+       (sra_modify_assign): Do not unshare exprs.
+       (propagate_subacesses_accross_link): Renamed to
+       propagate_subaccesses_across_link.
+
+2009-10-29  Richard Earnshaw  <rearnsha@arm.com>
+
+       * arm.c (count_insns_for_constant): Rework to support counting for
+       thumb2 immediates as well.
+       (find_best_start): Split out from arm_gen_constant.
+       (arm_gen_constant): Rework to support XOR with immediate.
+
+2009-10-29  Chao-ying Fu  <fu@mips.com>
+
+       * config/mips/mips.c (mips_emit_unary, mips_force_unary): New
+       functions.
+       (mips_expand_synci_loop):  Use the length rtx to control the
+       synci loop from the begin rtx that points to the first byte of
+       the cache line.
+
+2009-10-28  Rafael Avila de Espindola  <espindola@google.com>
+
+       * doc/invoke.texi: Rename -use-linker-plugin -fuse-linker-plugin.
+
+2009-10-28  Rafael Avila de Espindola  <espindola@google.com>
+
+       * dbxout.c (dbxout_common_check): Accept non public trees.
+       * dwarf2out.c (fortran_common): Accept non public trees.
+
+2009-10-28  Rafael Avila de Espindola  <espindola@google.com>
+
+       * common.opt (fuse-linker-plugin): New option.
+       * gcc.c (LINK_COMMAND_SPEC, main): Rename use-linker-plugin to
+       fuse-linker-plugin.
+       * opts.c (common_handle_option): Ignore OPT_fuse_linker_plugin.
+
+2009-10-28  Paolo Bonzini  <bonzini@gnu.org>
+
+       PR rtl-optimization/39715
+       * config/arm/arm.md (cstoresi4): Use gen_cstoresi_ltu_thumb1.
+       (gen_cstoresi_ltu_thumb1): New splitter.
+
+2009-10-28  Richard Guenther  <rguenther@suse.de>
+
+       PR lto/41808
+       PR lto/41839
+       * tree-ssa.c (useless_type_conversion_p): Do not treat
+       conversions to pointers to incomplete types as useless.
+       * gimple.c (gimple_types_compatible_p): Compare struct tags,
+       not typedef names.
+
+2009-10-28  Jakub Jelinek  <jakub@redhat.com>
+
+       * var-tracking.c (emit_note_insn_var_location): Don't call the second
+       vt_expand_loc unnecessarily when location is not a register nor
+       memory.
+
+       PR middle-end/41837
+       * ipa-struct-reorg.c (find_field_in_struct_1): Return NULL if
+       fields don't have DECL_NAME.
+
+       PR debug/41801
+       * builtins.c (get_builtin_sync_mem): Expand loc in ptr_mode,
+       call convert_memory_address on addr.
+
+       PR target/41762
+       * config/i386/i386.c (ix86_pic_register_p): Don't call
+       rtx_equal_for_cselib_p for VALUEs discarded as useless.
+
+2009-10-28  Richard Sandiford  <rdsandiford@googlemail.com>
+
+       * var-tracking.c (emit_note_insn_var_location): Get the mode of
+       a variable part from its REG, MEM or VALUE.
+
+2009-10-28  Richard Guenther  <rguenther@suse.de>
+
+       * gimple.c (gimple_get_alias_set): Fix comment typo.
+
+2009-10-28  Richard Guenther  <rguenther@suse.de>
+
+       * tree.c (free_lang_data_in_type): Do not call get_alias_set.
+       (free_lang_data): Unconditionally compute alias sets for all
+       standard integer types.  Bail out if gate bailed out previously.
+       Do not reset the types_compatible_p langhook.
+       (gate_free_lang_data): Remove.
+       (struct pass_ipa_free_lang_data): Enable unconditionally.
+       * gimple.c (gimple_get_alias_set): Use the same alias-set for
+       all pointer types.
+
+2009-10-28  Richard Guenther  <rguenther@suse.de>
+
+       PR middle-end/41855
+       * tree-ssa-alias.c (refs_may_alias_p_1): Deal with CONST_DECLs
+       (ref_maybe_used_by_call_p_1): Fix bcopy handling.
+       (call_may_clobber_ref_p_1): Likewise.
+       * tree-ssa-structalias.c (find_func_aliases): Likewise.
+       * alias.c (nonoverlapping_memrefs_p): Deal with CONST_DECLs.
+
+2009-10-28  Paolo Bonzini  <bonzini@gnu.org>
+
+       PR rtl-optimization/41812
+
+       Revert:
+       2009-06-27  Paolo Bonzini  <bonzini@gnu.org>
+
+       * df-problems.c (df_md_scratch): New.
+       (df_md_alloc, df_md_free): Allocate/free it.
+       (df_md_local_compute): Only include live registers in init.
+       (df_md_transfer_function): Prune the in-set computed by
+       the confluence function, and the gen-set too.
+
+2009-10-28  Paolo Bonzini  <bonzini@gnu.org>
+
+       PR rtl-optimization/39715
+       * combine.c (simplify_comparison): Use extensions to
+       widen comparisons.  Try an ANDing first.
+
+2009-10-28  Paolo Bonzini  <bonzini@gnu.org>
+
+       PR rtl-optimization/40741
+       * config/arm/arm.c (thumb1_rtx_costs): IOR or XOR with
+       a small constant is cheap.
+       * config/arm/arm.md (andsi3, iorsi3): Try to place the result of
+       force_reg on the LHS.
+       (xorsi3): Likewise, and split the XOR if the constant is complex
+       and not in Thumb mode.
+
+2009-10-28  Paolo Bonzini  <bonzini@gnu.org>
+
+       * expmed.c (emit_store_flag): Check costs before
+       transforming to the opposite representation.
+
+2009-10-28  Paolo Bonzini  <bonzini@gnu.org>
+
+       * config/sh/sh.md (cbranchfp4_media): Remove hack extending
+       cstore result to DImode.
+
+2009-10-28  Kaz Kojima  <kkojima@gcc.gnu.org>
+
+       * config/sh/sh.md (stuff_delay_slot): Move const_int pattern
+       inside the unspec vector.
+
+2009-10-27  Richard Henderson  <rth@redhat.com>
+
+       * cgraphunit.c (cgraph_optimize): Maintain timevar stack properly.
+
+2009-10-27  Richard Henderson  <rth@redhat.com>
+
+       PR c++/41819
+       * tree-eh.c (eh_region_may_contain_throw_map): Rename from
+       eh_region_may_contain_throw; update users.
+       (eh_region_may_contain_throw): New function.
+       (lower_catch): Check flag_exceptions before creating exception region.
+       (lower_eh_filter, lower_eh_must_not_throw): Likewise.
+       (lower_cleanup): Tidy existing flag_exceptions check to match.
+
+2009-10-27  Kai Tietz <kai.tietz@onevision.com>
+
+       PR/41799
+       * config/i386/mingw32.h (CHECK_EXECUTE_STACK_ENABLED): New macro.
+       * config/i386/mingw.opt: Add fset-stack-executable.
+       * config/i386/i386.c (ix86_trampoline_init): Make call to
+       emit_library_call conditional, if CHECK_EXECUTE_STACK_ENABLED is
+       defined and its value is not zero.
+       * doc/invoke.texi
+
 2009-10-27  Richard Guenther  <rguenther@suse.de>
 
        * tree-ssa-structalias.c (find_func_aliases): In IPA mode
 2009-10-27  Wei Guozhi  <carrot@google.com>
 
        PR target/41705
-       * target.h (have_conditional_execution): Add a new target hook function.
+       * target.h (have_conditional_execution): Add a new target hook
+       function.
        * target-def.h (TARGET_HAVE_CONDITIONAL_EXECUTION): Likewise.
        * targhooks.h (default_have_conditional_execution): Likewise.
        * targhooks.c (default_have_conditional_execution): Likewise.
        * config/arm/arm.c (TARGET_HAVE_CONDITIONAL_EXECUTION): Define it.
        (arm_have_conditional_execution): New function.
        * ifcvt.c (noce_process_if_block, find_if_header,
-       cond_exec_find_if_block, dead_or_predicable): Change the usage of macro
-       HAVE_conditional_execution to a target hook call.
+       cond_exec_find_if_block, dead_or_predicable): Change the usage of
+       macro HAVE_conditional_execution to a target hook call.
        * recog.c (peephole2_optimize): Likewise.
        * sched-rgn.c (add_branch_dependences): Likewise.
        * final.c (asm_insn_count, final_scan_insn): Likewise.
        (expand_expr_addr_expr): Likewise.
        * tree-vect-data-refs.c (vect_create_data_ref_ptr): Likewise.
        * cfgexpand.c (expand_debug_expr): Likewise.
-       
+
        * auto-inc-dec.c: Include "target.h".
        (try_merge): Use appropriate address mode instead of Pmode.
        (find_inc): Likewise.
        (multiplier_allowed_in_address_p): Likewise.
        (get_address_cost): Likewise.
        * varasm.c (make_decl_rtl): Likewise.
-       
+
        * expr.c (expand_assignment): Always convert offsets to appropriate
        address mode.
        (store_expr): Likewise.
        * reload.c (form_sum): Add MODE argument, use it instead of Pmode.
        Update recursive calls.
        (subst_indexed_address): Update calls to form_sum.
-       
+
        * tree-flow.h (addr_for_mem_ref): Add ADDRSPACE argument.
        * tree-ssa-address.c: Include "target.h".
        (templates): Replace by ...
        instead of global cache.  Update call to gen_addr_rtx.
        (valid_mem_ref_p): Update call to addr_for_mem_ref.
        * expr.c (expand_expr_real_1): Update call to addr_for_mem_ref.
-       
+
        * rtl.h (convert_memory_address_addr_space): Add prototype.
        (convert_memory_address): Define as macro.
        * explow.c (convert_memory_address): Rename to ...
        (m32c_function_value): Make static, add new 'outgoing' argument.
        (m32c_libcall_value): Make static, add new 'fun' argument.
        (TARGET_FUNCTION_VALUE, TARGET_LIBCALL_VALUE): Declare.
-       * config/m32c/m32c.h: (FUNCTION_VALUE, LIBCALL_VALUE): Remove.
+       * config/m32c/m32c.h (FUNCTION_VALUE, LIBCALL_VALUE): Remove.
        (FUNCTION_VALUE_REGNO_P): Redefine, use m32c_function_value_regno_p.
        * config/m32c/m32c-protos.h (m32c_function_value_regno_p): Declare.
        (m32c_function_value, m32c_libcall_value): Delete declaration.
        * lto-streamer-in.c (lto_input_location): Likewise.
 
 2009-10-22  Razya Ladelsky  <razya@il.ibm.com>
-       
-       * cfgloopmanip.c  (duplicate_subloops): Export. 
+
+       * cfgloopmanip.c (duplicate_subloops): Export.
        * tree-parloops.c (loop_parallel_p): Dump if loop is innermost.
-       (transform_to_exit_first_loop): Duplicate bbs starting from 
+       (transform_to_exit_first_loop): Duplicate bbs starting from
        header up to loop->latch instead of exit->src.
        Initialize control variable to the correct number of iterations.
        (gather_scalar_reductions): Do not register double reductions.
-       (parallelize_loops): Dump which loop is tested. 
-       Indicate whether the parallelized loop is inner or not. 
+       (parallelize_loops): Dump which loop is tested.
+       Indicate whether the parallelized loop is inner or not.
        Remove the innermost-loop requirement.
-       * cfgloop.h (duplicate_subloops): Export. 
+       * cfgloop.h (duplicate_subloops): Export.
        * tree-cfg.c (add_phi_args_after_redirect): New function.
        (gimple_duplicate_sese_tail): Remove the no-subloops constraint.
        Call duplicate_subloops.
        flag_ltrans check.
        * ipa-inline.c (cgraph_mark_inline_edge,
        cgraph_decide_inlining_of_small_function,
-       cgraph_decide_inlining, inline_read_summary): Disable indirect inlining
-       for WPA for time being.
+       cgraph_decide_inlining, inline_read_summary): Disable indirect
+       inlining for WPA for time being.
 
        PR tree-optimize/40556
        * ipa-inline.c (cgraph_early_inlining): Fix iterations condition.
        (ipa_reference_read_summary): Stream in calls_read_all properly.
        (read_write_all_from_decl): New function.
        (propagate): Handle OVERWRITABLE nodes and external calls here.
-       * ipa-pre-const.c (check_call): In IPA mode handle indirect calls
-       only.
+       * ipa-pre-const.c (check_call): In IPA mode handle indirect
+       calls only.
        (analyze_function): Do not check visibility here.
        (add_new_function): We summary OVERWRITABLE too.
        (generate_summary): Stream OVERWRITABLE nodes too.
        (ipcp_init_stage): Analyze all functions for whopr/lto.
        (ipcp_propagate_stage): Skip external calls.
        (ipcp_iterate_stage): Call ipa_update_after_lto_read if needed.
-       * ipa-reference.c (write_node_summary_p): Fix thinko about availability.
+       * ipa-reference.c (write_node_summary_p): Fix thinko about
+       availability.
        * cgraphunit.c (ipa_passes): When in lto, ne er produce new summaries;
-       when in ltrans, skip executing of ipa passes since everything should've
-       been done.
+       when in ltrans, skip executing of ipa passes since everything
+       should've been done.
        * ipa-inline.c (cgraph_decide_inlining): Remove FIXMEs.
        (inline_generate_summary): Likewise.
        (inline_read_summary): New function.
        (ipa_edge_args_vector): Move into GGC.
        (ipa_check_create_edge_args): Update.
        (ipa_update_after_lto_read): New.
-       * passes.c (ipa_write_summaries_1): When in wpa, do not write summaries.
+       * passes.c (ipa_write_summaries_1): When in wpa, do not write
+       summaries.
        (ipa_read_summaries): When in ltrans, so not read summaries.
-       * lto-streamer.c (lto_get_section_name): Add LTO_section_jump_functions.
+       * lto-streamer.c (lto_get_section_name): Add
+       LTO_section_jump_functions.
        * lto-streamer.h (LTO_section_jump_functions): New section.
        (produce_asm): Declare.
        * lto-cgraph.c (output_cgraph): Output edges in reverse order.
        * config/ia64/ia64.c (ia64_override_options): Set
        flag_ira_loop_pressure up for -O3.
        * config/rs6000/rs6000.c (rs6000_override_options): Ditto.
-       
+
 2009-10-21  Sebastian Pop  <sebastian.pop@amd.com>
 
        PR tree-optimization/41497
 2009-10-20  Wolfgang Gellerich  <gellerich@de.ibm.com>
 
        * config/s390/s390.md: Added agen condition to operand
-       forwarding bypasses. 
-       Added bypass for early address generation use of int results.
-       Updated comments.
+       forwarding bypasses.  Added bypass for early address generation
+       use of int results.  Updated comments.
 
 2009-10-20  Stefan Dösinger  <stefan@codeweavers.com>
 
        PR target/23983
        * config/rs6000/predicates.md: Update copyright year.
        * config/rs6000/altivec.md: Ditto.
-       
+
        * config/rs6000/t-rs6000 (TM_H): Add rs6000-builtin.def.
        (MD_INCLUDES): Add a2.md.
-       
+
        * config/rs6000/rs6000.c (rs6000_builtin_decls): Change
        RS6000_BUILTIN_COUNT to MAX_RS6000_BUILTINS.
        (builtin_classify): New static vector to classify various builtins
        * config/arm/neon.md (neon_vshll_n<mode>): Checking Bounds fixed.
 
 2009-10-14  DJ Delorie  <dj@redhat.com>
-       
+
        * config/h8300/h8300.c (F): New.
        (Fpa): New.
        (h8300_emit_stack_adjustment): Call them.
        * doc/invoke.texi (-fira-loop-pressure, ira-loop-reserved-regs):
        Describe.
        * doc/tm.texi (STACK_REG_COVER_CLASS): Describe.
-       
+
 2009-10-14  Richard Guenther  <rguenther@suse.de>
 
        * lto-symtab.c (lto_symtab_compatible): Fold in ...