2013-09-28  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* expr.h (extract_bit_field): Remove packedp parameter.
	* expmed.c (extract_fixed_bit_field): Remove packedp parameter
	from forward declaration.
	(store_split_bit_field): Remove packedp arg from calls to
	extract_fixed_bit_field.
	(extract_bit_field_1): Remove packedp parameter and packedp
	argument from recursive calls and calls to extract_fixed_bit_field.
	(extract_bit_field): Remove packedp parameter and corresponding
	arg to extract_bit_field_1.
	(extract_fixed_bit_field): Remove packedp parameter.  Remove code
	to issue warnings.
	(extract_split_bit_field): Remove packedp arg from call to
	extract_fixed_bit_field.
	* expr.c (emit_group_load_1): Adjust calls to extract_bit_field.
	(copy_blkmode_from_reg): Likewise.
	(copy_blkmode_to_reg): Likewise.
	(read_complex_part): Likewise.
	(store_field): Likewise.
	(expand_expr_real_1): Likewise.
	* calls.c (store_unaligned_arguments_into_pseudos): Adjust call
	to extract_bit_field.
	* config/tilegx/tilegx.c (tilegx_expand_unaligned_load): Adjust
	call to extract_bit_field.
	* config/tilepro/tilepro.c (tilepro_expand_unaligned_load): Adjust
	call to extract_bit_field.
	* doc/invoke.texi (Code Gen Options): Remove mention of warnings
	and special packedp behavior from -fstrict-volatile-bitfields
	documentation.

From-SVN: r203003

	PR target/52555
	* genopinit.c (raw_optab_handler): Use this_fn_optabs.
	(swap_optab_enable): Same.
	(init_all_optabs): Use argument instead of global.
	* tree.h (struct tree_optimization_option): New field
	target_optabs.
	* expr.h (init_all_optabs): Add argument to prototype.
	(TREE_OPTIMIZATION_OPTABS): New.
	(save_optabs_if_changed): Protoize.
	* optabs.h: Declare this_fn_optabs.
	* optabs.c (save_optabs_if_changed): New.
	Declare this_fn_optabs.
	(init_optabs): Add argument to init_all_optabs() call.
	* function.c (invoke_set_current_function_hook): Handle per
	function optabs.
	* function.h (struct function): New field optabs.
	* config/mips/mips.c (mips_set_mips16_mode): Handle when
	optimization_current_node has changed.
	* target-globals.h (save_target_globals_default_opts): Protoize.
	* target-globals.c (save_target_globals_default_opts): New.
c-family/
	* c-common.c (handle_optimize_attribute): Call
	save_optabs_if_changed.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r196129

From-SVN: r195098

gcc/
	PR middle-end/55114
	* expr.h (maybe_emit_group_store): Declare.
	* expr.c (maybe_emit_group_store): New function.
	* builtins.c (expand_builtin_int_roundingfn): Call it.
	(expand_builtin_int_roundingfn_2): Likewise.

From-SVN: r195060

gcc/
	* Makefile.in (recog.o): Add insn-codes.h.
	* expr.h (extraction_pattern): Move to optabs.h.
	(mode_for_extraction): Delete.
	* optabs.h (extraction_insn): New structure.
	(extraction_pattern): Moved from expr.h.
	(get_best_reg_extraction_insn, get_best_mem_extraction_insn): Declare.
	* optabs.c (HAVE_insv, CODE_FOR_insv, HAVE_extv, CODE_FOR_extv)
	(HAVE_extzv, CODE_FOR_extzv): Provide defaults.
	(extraction_type): New enum.
	(get_traditional_extraction_insn, get_extraction_insn)
	(get_best_reg_extraction_insn, get_best_mem_extraction_insn):
	New functions.
	* combine.c (make_extraction): Use get_best_reg_extraction_insn
	instead of mode_for_extraction.
	* expmed.c (HAVE_insv, CODE_FOR_insv, gen_insv, HAVE_extv)
	(CODE_FOR_extv, gen_extv, HAVE_extzv, CODE_FOR_extzv, gen_extzv):
	Remove fallback definitions.
	(mode_for_extraction): Delete.
	(adjust_bit_field_mem_for_reg): New function.
	(store_bit_field_using_insv): Replace OP_MODE parameter with
	an extraction_insn.  Pass struct_mode to narrow_bit_field_mem.
	(extract_bit_field_using_extv): Likewise EXT_MODE.
	(store_bit_field_1): Use get_best_reg_extraction_insn and
	get_best_mem_extraction_insn instead of mode_for_extraction.
	Use adjust_bit_field_mem_for_reg when forcing memory to a
	register and doing a register insertion.  Update calls to
	store_bit_field_using_insv.
	(extract_bit_field_1): Likewise extractions and calls to
	extract_bit_field_using_extv.
	(store_Bit_field): When narrowing to a bitregion, don't use the
	insv mode as a limit.
	* recog.c: (HAVE_extv, CODE_FOR_extv, HAVE_extzv, CODE_FOR_extzv):
	Provide defaults.
	(simplify_while_replacing): Use insn_data instead of
	mode_for_extraction.

From-SVN: r193605

gcc/
	* expr.h (adjust_address_1): Add a size parameter.
	(adjust_address, adjust_address_nv, adjust_bitfield_address)
	(adjust_bitfield_address_nv): Adjust accordingly.
	(adjust_bitfield_address_size): Define.
	* emit-rtl.c (adjust_address_1): Add a size parameter.
	Use it to set the size if MODE has no size.  Check whether
	the size matches before returning the original memref.
	Require the size to be known for adjust_object.
	(adjust_automodify_address_1, widen_memory_access): Update calls
	to adjust_address_1.

From-SVN: r193601

This patch rewrites the old VEC macro-based interface into a new one based on the template class 'vec'.

This patch rewrites the old VEC macro-based interface into a new one
based on the template class 'vec'.  The user-visible changes are
described in http://gcc.gnu.org/wiki/cxx-conversion/cxx-vec.

I have tested the patch pretty extensively:

- Regular bootstraps on x86_64, ppc, ia64, sparc and hppa.
- Bootstraps with --enable-checking=release
- Bootstraps with --enable-checking=gc,gcac
- Basic builds on all targets (using contrib/config-list.mk).

We no longer access the vectors via VEC_* macros.  The pattern is
"VEC_operation (T, A, V, args)" becomes "V.operation (args)".

The only thing I could not do is create proper ctors and dtors for the
vec class.  Since these vectors are stored in unions, we
have to keep them as PODs (C++03 does not allow non-PODs in unions).

This means that creation and destruction must be explicit.  There is a
new method vec<type, allocation, layout>::create() and another vec<type,
allocation, layout>::destroy() to allocate the internal vector.

For vectors that must be pointers, there is a family of free functions
that implement the operations that need to tolerate NULL vectors.
These functions all start with the prefix 'vec_safe_'.  See the wiki
page for details.

The gengtype change removes the special handling for VEC() that used
to exist in gengtype. Additionally, it allows gengtype to recognize
templates of more than one argument and introduces the concept of an
undefined type (useful for template arguments that may or may not be
types).

When a TYPE_UNDEFINED is reached, gengtype will ignore it if it
happens inside a type marked with GTY((user)).  Otherwise, it will
emit an error.

Finally, gengtype rejects root types marked GTY((user)) that are not
first class pointers.

2012-11-16  Diego Novillo  <dnovillo@google.com>

	VEC API overhaul (http://gcc.gnu.org/wiki/cxx-conversion/cxx-vec)

	* vec.c (register_overhead): Convert it into
	member function of vec_prefix.
	(release_overhead): Likewise.
	(calculate_allocation): Likewise.
	(vec_heap_free): Remove.
	(vec_gc_o_reserve_1): Remove.
	(vec_heap_o_reserve_1): Remove.
	(vec_stack_o_reserve_1): Remove.
	(vec_stack_o_reserve_exact): Remove.
	(register_stack_vec): New.
	(stack_vec_register_index): New.
	(unregister_stack_vec): New.
	(vec_assert_fail): Remove.
	* vec.h: Conditionally include ggc.h.  Document conditional
	hackery.
	Update top-level documentation.
	(ALONE_VEC_CHECK_INFO): Remove.
	(VEC_CHECK_INFO): Remove.
	(ALONE_VEC_CHECK_DECL): Remove.
	(VEC_CHECK_DECL): Remove.
	(ALONE_VEC_CHECK_PASS): Remove.
	(VEC_CHECK_PASS): Remove.
	(VEC_ASSERT): Remove.
	(vec_prefix): Add friends va_gc, va_gc_atomic, va_heap and
	va_stack.
	Mark fields alloc_ and num_ as protected.
	(struct vec_t): Remove.  Remove all function members.
	(struct vl_embed): Declare.
	(struct vl_ptr): Declare.
	(free): Remove.
	(reserve_exact): Remove.
	(reserve): Remove.
	(safe_splice): Remove.
	(safe_push): Remove.
	(safe_grow): Remove.
	(safe_grow_cleared): Remove.
	(safe_insert): Remove.
	(DEF_VEC_I): Remove.
	(DEF_VEC_ALLOC_I): Remove.
	(DEF_VEC_P): Remove.
	(DEF_VEC_ALLOC_P): Remove.
	(DEF_VEC_O): Remove.
	(DEF_VEC_ALLOC_O): Remove.
	(DEF_VEC_ALLOC_P_STACK): Remove.
	(DEF_VEC_ALLOC_O_STACK): Remove.
	(DEF_VEC_ALLOC_I_STACK): Remove.
	(DEF_VEC_A): Remove.
	(DEF_VEC_ALLOC_A): Remove.
	(vec_stack_p_reserve_exact_1): Remove.
	(vec_stack_o_reserve): Remove.
	(vec_stack_o_reserve_exact): Remove.
	(VEC_length): Remove.
	(VEC_empty): Remove.
	(VEC_address): Remove.
	(vec_address): Remove.
	(VEC_last): Remove.
	(VEC_index): Remove.
	(VEC_iterate): Remove.
	(VEC_embedded_size): Remove.
	(VEC_embedded_init): Remove.
	(VEC_free): Remove.
	(VEC_copy): Remove.
	(VEC_space): Remove.
	(VEC_reserve): Remove.
	(VEC_reserve_exact): Remove.
	(VEC_splice): Remove.
	(VEC_safe_splice): Remove.
	(VEC_quick_push): Remove.
	(VEC_safe_push): Remove.
	(VEC_pop): Remove.
	(VEC_truncate): Remove.
	(VEC_safe_grow): Remove.
	(VEC_replace): Remove.
	(VEC_quick_insert): Remove.
	(VEC_safe_insert): Remove.
	(VEC_ordered_remove): Remove.
	(VEC_unordered_remove): Remove.
	(VEC_block_remove): Remove.
	(VEC_lower_bound): Remove.
	(VEC_alloc): Remove.
	(VEC_qsort): Remove.

	(va_heap): Declare.
	(va_heap::default_layout): New typedef to vl_ptr.
	(va_heap::reserve): New.
	(va_heap::release): New.
	(va_gc): Declare.
	(va_gc::default_layout): New typedef to vl_embed.
	(va_gc::reserve): New.
	(va_gc::release): New.
	(va_gc_atomic): Declare.  Inherit from va_gc.
	(va_stack): Declare.
	(va_stack::default_layout): New typedef to vl_ptr.
	(va_stack::alloc): New.
	(va_stack::reserve): New.
	(va_stack::release): New.
	(register_stack_vec): Declare.
	(stack_vec_register_index): Declare.
	(unregister_stack_vec): Declare.

	(vec<T, A = va_heap, L = typename A::default_layout>): Declare
	empty vec template.
	(vec<T, A, vl_embed>): Partial specialization for embedded
	layout.
	(vec<T, A, vl_embed>::allocated): New.
	(vec<T, A, vl_embed>::length): New.
	(vec<T, A, vl_embed>::is_empty): New.
	(vec<T, A, vl_embed>::address): New.
	(vec<T, A, vl_embed>::operator[]): New.
	(vec<T, A, vl_embed>::last New.
	(vec<T, A, vl_embed>::space): New.
	(vec<T, A, vl_embed>::iterate): New.
	(vec<T, A, vl_embed>::iterate): New.
	(vec<T, A, vl_embed>::copy): New.
	(vec<T, A, vl_embed>::splice): New.
	(vec<T, A, vl_embed>::quick_push New.
	(vec<T, A, vl_embed>::pop New.
	(vec<T, A, vl_embed>::truncate): New.
	(vec<T, A, vl_embed>::quick_insert): New.
	(vec<T, A, vl_embed>::ordered_remove): New.
	(vec<T, A, vl_embed>::unordered_remove): New.
	(vec<T, A, vl_embed>::block_remove): New.
	(vec<T, A, vl_embed>::qsort): New.
	(vec<T, A, vl_embed>::lower_bound): New.
	(vec<T, A, vl_embed>::embedded_size): New.
	(vec<T, A, vl_embed>::embedded_init): New.
	(vec<T, A, vl_embed>::quick_grow): New.
	(vec<T, A, vl_embed>::quick_grow_cleared): New.
	(vec_safe_space): New.
	(vec_safe_length): New.
	(vec_safe_address): New.
	(vec_safe_is_empty): New.
	(vec_safe_reserve): New.
	(vec_safe_reserve_exact): New.
	(vec_alloc): New.
	(vec_free): New.
	(vec_safe_grow): New.
	(vec_safe_grow_cleared): New.
	(vec_safe_iterate): New.
	(vec_safe_push): New.
	(vec_safe_insert): New.
	(vec_safe_truncate): New.
	(vec_safe_copy): New.
	(vec_safe_splice): New.

	(vec<T, A, vl_ptr>): New partial specialization for the space
	efficient layout.
	(vec<T, A, vl_ptr>::exists): New.
	(vec<T, A, vl_ptr>::is_empty): New.
	(vec<T, A, vl_ptr>::length): New.
	(vec<T, A, vl_ptr>::address): New.
	(vec<T, A, vl_ptr>::operator[]): New.
	(vec<T, A, vl_ptr>::operator!=): New.
	(vec<T, A, vl_ptr>::operator==): New.
	(vec<T, A, vl_ptr>::last): New.
	(vec<T, A, vl_ptr>::space): New.
	(vec<T, A, vl_ptr>::iterate): New.
	(vec<T, A, vl_ptr>::copy): New.
	(vec<T, A, vl_ptr>::reserve): New.
	(vec<T, A, vl_ptr>::reserve_exact): New.
	(vec<T, A, vl_ptr>::splice): New.
	(vec<T, A, vl_ptr>::safe_splice): New.
	(vec<T, A, vl_ptr>::quick_push): New.
	(vec<T, A, vl_ptr>::safe_push): New.
	(vec<T, A, vl_ptr>::pop): New.
	(vec<T, A, vl_ptr>::truncate): New.
	(vec<T, A, vl_ptr>::safe_grow): New.
	(vec<T, A, vl_ptr>::safe_grow_cleared): New.
	(vec<T, A, vl_ptr>::quick_grow): New.
	(vec<T, A, vl_ptr>::quick_grow_cleared): New.
	(vec<T, A, vl_ptr>::quick_insert): New.
	(vec<T, A, vl_ptr>::safe_insert): New.
	(vec<T, A, vl_ptr>::ordered_remove): New.
	(vec<T, A, vl_ptr>::unordered_remove): New.
	(vec<T, A, vl_ptr>::block_remove): New.
	(vec<T, A, vl_ptr>::qsort): New.
	(vec<T, A, vl_ptr>::lower_bound): New.
	(vec_stack_alloc): Define.
	(FOR_EACH_VEC_SAFE_ELT): Define.
	* vecir.h: Remove.  Update all users.
	* vecprim.h: Remove.  Update all users.
	Move uchar to coretypes.h.

	* Makefile.in (VEC_H): Add $(GGC_H).
	Remove vecir.h and vecprim.h dependencies everywhere.

2012-11-16  Diego Novillo  <dnovillo@google.com>

	* gengtype-lex.l (VEC): Remove.
	Add characters in the set [\!\>\.-].
	* gengtype-parse.c (token_names): Remove "VEC".
	(require_template_declaration): Remove handling of VEC_TOKEN.
	(type): Likewise.
	Call create_user_defined_type when parsing GTY((user)).
	* gengtype-state.c (type_lineloc): handle TYPE_UNDEFINED.
	(write_state_undefined_type): New.
	(write_state_type): Call write_state_undefined_type for
	TYPE_UNDEFINED.
	(read_state_type): Call read_state_undefined_type for
	TYPE_UNDEFINED.
	* gengtype.c (dbgprint_count_type_at): Handle TYPE_UNDEFINED.
	(create_user_defined_type): Make extern.
	(type_for_name): Factor out of resolve_typedef.
	(create_undefined_type): New
	(resolve_typedef): Call it when we cannot find a previous
	typedef and the type is not a template.
	(find_structure): Accept TYPE_UNDEFINED.
	(set_gc_used_type): Add argument ALLOWED_UNDEFINED_TYPES,
	default to false.
	Emit an error for TYPE_UNDEFINED unless LEVEL is GC_UNUSED or
	ALLOWED_UNDEFINED_TYPES is set.
	Set ALLOWED_UNDEFINED_TYPES to true for TYPE_USER_STRUCT.
	(filter_type_name): Accept templates with more than one
	argument.
	(output_mangled_typename): Handle TYPE_UNDEFINED
	(walk_type): Likewise.
	(write_types_process_field): Likewise.
	(write_func_for_structure): If CHAIN_NEXT is set, ORIG_S
	should not be a user-defined type.
	(write_types_local_user_process_field): Handle TYPE_ARRAY,
	TYPE_NONE and TYPE_UNDEFINED.
	(write_types_local_process_field): Likewise.
	(contains_scalar_p): Return 0 for TYPE_USER_STRUCT.
	(write_root): Reject user-defined types that are not pointers.
	Handle TYPE_NONE, TYPE_UNDEFINED, TYPE_UNION, TYPE_LANG_STRUCT
	and TYPE_PARAM_STRUCT.
	(output_typename): Handle TYPE_NONE, TYPE_UNDEFINED, and
	TYPE_ARRAY.
	(dump_typekind): Handle TYPE_UNDEFINED.
	* gengtype.h (enum typekind): Add TYPE_UNDEFINED.
	(create_user_defined_type): Declare.
	(enum gty_token): Remove VEC_TOKEN.

2012-11-16  Diego Novillo  <dnovillo@google.com>

	Adjust for new vec API (http://gcc.gnu.org/wiki/cxx-conversion/cxx-vec)

	* coretypes.h (uchar): Define.
	* alias.c: Use new vec API in vec.h.
	* asan.c: Likewise.
	* attribs.c: Likewise.
	* basic-block.h: Likewise.
	* bb-reorder.c: Likewise.
	* builtins.c: Likewise.
	* calls.c: Likewise.
	* cfg.c: Likewise.
	* cfganal.c: Likewise.
	* cfgcleanup.c: Likewise.
	* cfgexpand.c: Likewise.
	* cfghooks.c: Likewise.
	* cfghooks.h: Likewise.
	* cfgloop.c: Likewise.
	* cfgloop.h: Likewise.
	* cfgloopanal.c: Likewise.
	* cfgloopmanip.c: Likewise.
	* cfgrtl.c: Likewise.
	* cgraph.c: Likewise.
	* cgraph.h: Likewise.
	* cgraphclones.c: Likewise.
	* cgraphunit.c: Likewise.
	* combine.c: Likewise.
	* compare-elim.c: Likewise.
	* coverage.c: Likewise.
	* cprop.c: Likewise.
	* data-streamer.h: Likewise.
	* dbxout.c: Likewise.
	* dce.c: Likewise.
	* df-core.c: Likewise.
	* df-problems.c: Likewise.
	* df-scan.c: Likewise.
	* dominance.c: Likewise.
	* domwalk.c: Likewise.
	* domwalk.h: Likewise.
	* dse.c: Likewise.
	* dwarf2cfi.c: Likewise.
	* dwarf2out.c: Likewise.
	* dwarf2out.h: Likewise.
	* emit-rtl.c: Likewise.
	* except.c: Likewise.
	* except.h: Likewise.
	* expr.c: Likewise.
	* expr.h: Likewise.
	* final.c: Likewise.
	* fold-const.c: Likewise.
	* function.c: Likewise.
	* function.h: Likewise.
	* fwprop.c: Likewise.
	* gcc.c: Likewise.
	* gcse.c: Likewise.
	* genattr.c: Likewise.
	* genattrtab.c: Likewise.
	* genautomata.c: Likewise.
	* genextract.c: Likewise.
	* genopinit.c: Likewise
	* ggc-common.c: Likewise.
	* ggc.h: Likewise.
	* gimple-low.c: Likewise.
	* gimple-ssa-strength-reduction.c: Likewise.
	* gimple-streamer-in.c: Likewise.
	* gimple.c: Likewise.
	* gimple.h: Likewise.
	* gimplify.c: Likewise.
	* graph.c: Likewise.
	* graphds.c: Likewise.
	* graphds.h: Likewise.
	* graphite-blocking.c: Likewise.
	* graphite-clast-to-gimple.c: Likewise.
	* graphite-dependences.c: Likewise.
	* graphite-interchange.c: Likewise.
	* graphite-optimize-isl.c: Likewise.
	* graphite-poly.c: Likewise.
	* graphite-poly.h: Likewise.
	* graphite-scop-detection.c: Likewise.
	* graphite-scop-detection.h: Likewise.
	* graphite-sese-to-poly.c: Likewise.
	* graphite.c: Likewise.
	* godump.c: Likewise.
	* haifa-sched.c: Likewise.
	* hw-doloop.c: Likewise.
	* hw-doloop.h: Likewise.
	* ifcvt.c: Likewise.
	* insn-addr.h: Likewise.
	* ipa-cp.c: Likewise.
	* ipa-inline-analysis.c: Likewise.
	* ipa-inline-transform.c: Likewise.
	* ipa-inline.c: Likewise.
	* ipa-inline.h: Likewise.
	* ipa-prop.c: Likewise.
	* ipa-prop.h: Likewise.
	* ipa-pure-const.c: Likewise.
	* ipa-ref-inline.h: Likewise.
	* ipa-ref.c: Likewise.
	* ipa-ref.h: Likewise.
	* ipa-reference.c: Likewise.
	* ipa-split.c: Likewise.
	* ipa-utils.c: Likewise.
	* ipa-utils.h: Likewise.
	* ipa.c: Likewise.
	* ira-build.c: Likewise.
	* ira-color.c: Likewise.
	* ira-emit.c: Likewise.
	* ira-int.h: Likewise.
	* ira.c: Likewise.
	* loop-invariant.c: Likewise.
	* loop-unroll.c: Likewise.
	* lower-subreg.c: Likewise.
	* lra-lives.c: Likewise.
	* lra.c: Likewise.
	* lto-cgraph.c: Likewise.
	* lto-section-out.c: Likewise.
	* lto-streamer-in.c: Likewise.
	* lto-streamer-out.c: Likewise.
	* lto-streamer.h: Likewise.
	* lto-symtab.c: Likewise.
	* mcf.c: Likewise.
	* modulo-sched.c: Likewise.
	* omp-low.c: Likewise.
	* opts-common.c: Likewise.
	* opts-global.c: Likewise.
	* opts.c: Likewise.
	* opts.h: Likewise.
	* passes.c: Likewise.
	* predict.c: Likewise.
	* print-tree.c: Likewise.
	* profile.c: Likewise.
	* profile.h: Likewise.
	* read-rtl.c: Likewise.
	* ree.c: Likewise.
	* reg-stack.c: Likewise.
	* regrename.c: Likewise.
	* regrename.h: Likewise.
	* reload.c: Likewise.
	* reload.h: Likewise.
	* reload1.c: Likewise.
	* rtl.h: Likewise.
	* sched-deps.c: Likewise.
	* sched-int.h: Likewise.
	* sdbout.c: Likewise.
	* sel-sched-dump.c: Likewise.
	* sel-sched-ir.c: Likewise.
	* sel-sched-ir.h: Likewise.
	* sel-sched.c: Likewise.
	* sese.c: Likewise.
	* sese.h: Likewise.
	* statistics.h: Likewise.
	* stmt.c: Likewise.
	* stor-layout.c: Likewise.
	* store-motion.c: Likewise.
	* tlink.c: Likewise.
	* toplev.c: Likewise.
	* trans-mem.c: Likewise.
	* tree-browser.c: Likewise.
	* tree-call-cdce.c: Likewise.
	* tree-cfg.c: Likewise.
	* tree-cfgcleanup.c: Likewise.
	* tree-chrec.c: Likewise.
	* tree-chrec.h: Likewise.
	* tree-complex.c: Likewise.
	* tree-data-ref.c: Likewise.
	* tree-data-ref.h: Likewise.
	* tree-dfa.c: Likewise.
	* tree-diagnostic.c: Likewise.
	* tree-dump.c: Likewise.
	* tree-eh.c: Likewise.
	* tree-emutls.c: Likewise.
	* tree-flow.h: Likewise.
	* tree-if-conv.c: Likewise.
	* tree-inline.c: Likewise.
	* tree-inline.h: Likewise.
	* tree-into-ssa.c: Likewise.
	* tree-iterator.c: Likewise.
	* tree-loop-distribution.c: Likewise.
	* tree-mudflap.c: Likewise.
	* tree-optimize.c: Likewise.
	* tree-outof-ssa.c: Likewise.
	* tree-parloops.c: Likewise.
	* tree-phinodes.c: Likewise.
	* tree-predcom.c: Likewise.
	* tree-pretty-print.c: Likewise.
	* tree-scalar-evolution.c: Likewise.
	* tree-sra.c: Likewise.
	* tree-ssa-address.c: Likewise.
	* tree-ssa-alias.c: Likewise.
	* tree-ssa-ccp.c: Likewise.
	* tree-ssa-coalesce.c: Likewise.
	* tree-ssa-dce.c: Likewise.
	* tree-ssa-dom.c: Likewise.
	* tree-ssa-forwprop.c: Likewise.
	* tree-ssa-live.c: Likewise.
	* tree-ssa-live.h: Likewise.
	* tree-ssa-loop-im.c: Likewise.
	* tree-ssa-loop-ivcanon.c: Likewise.
	* tree-ssa-loop-ivopts.c: Likewise.
	* tree-ssa-loop-manip.c: Likewise.
	* tree-ssa-loop-niter.c: Likewise.
	* tree-ssa-loop-prefetch.c: Likewise.
	* tree-ssa-math-opts.c: Likewise.
	* tree-ssa-operands.c: Likewise.
	* tree-ssa-phiopt.c: Likewise.
	* tree-ssa-phiprop.c: Likewise.
	* tree-ssa-pre.c: Likewise.
	* tree-ssa-propagate.c: Likewise.
	* tree-ssa-reassoc.c: Likewise.
	* tree-ssa-sccvn.c: Likewise.
	* tree-ssa-sccvn.h: Likewise.
	* tree-ssa-strlen.c: Likewise.
	* tree-ssa-structalias.c: Likewise.
	* tree-ssa-tail-merge.c: Likewise.
	* tree-ssa-threadedge.c: Likewise.
	* tree-ssa-threadupdate.c: Likewise.
	* tree-ssa-uncprop.c: Likewise.
	* tree-ssa-uninit.c: Likewise.
	* tree-ssa.c: Likewise.
	* tree-ssanames.c: Likewise.
	* tree-stdarg.c: Likewise.
	* tree-streamer-in.c: Likewise.
	* tree-streamer-out.c: Likewise.
	* tree-streamer.c: Likewise.
	* tree-streamer.h: Likewise.
	* tree-switch-conversion.c: Likewise.
	* tree-vect-data-refs.c: Likewise.
	* tree-vect-generic.c: Likewise.
	* tree-vect-loop-manip.c: Likewise.
	* tree-vect-loop.c: Likewise.
	* tree-vect-patterns.c: Likewise.
	* tree-vect-slp.c: Likewise.
	* tree-vect-stmts.c: Likewise.
	* tree-vectorizer.c: Likewise.
	* tree-vectorizer.h: Likewise.
	* tree-vrp.c: Likewise.
	* tree.c: Likewise.
	* tree.h: Likewise.
	* value-prof.c: Likewise.
	* value-prof.h: Likewise.
	* var-tracking.c: Likewise.
	* varasm.c: Likewise.
	* varpool.c: Likewise.
	* vmsdbgout.c: Likewise.
	* config/bfin/bfin.c: Likewise.
	* config/c6x/c6x.c: Likewise.
	* config/darwin.c: Likewise.
	* config/i386/i386.c: Likewise.
	* config/ia64/ia64.c: Likewise.
	* config/mep/mep.c: Likewise.
	* config/mips/mips.c: Likewise.
	* config/pa/pa.c: Likewise.
	* config/rs6000/rs6000-c.c: Likewise.
	* config/rs6000/rs6000.c: Likewise.
	* config/rx/rx.c: Likewise.
	* config/spu/spu-c.c: Likewise.
	* config/vms/vms.c: Likewise.
	* config/vxworks.c: Likewise.
	* config/epiphany/resolve-sw-modes.c: Likewise.

From-SVN: r193595

	PR rtl-optimization/54315
	* calls.c (expand_call): Don't deal specifically with BLKmode values
	returned in naked registers.
	* expr.h (copy_blkmode_from_reg): Adjust prototype.
	* expr.c (copy_blkmode_from_reg): Rename first parameter into TARGET and
	make it required.  Assert that SRCREG hasn't BLKmode.  Add a couple of 
	short-circuits for common cases and be prepared for sub-word registers.
	(expand_assignment): Call copy_blkmode_from_reg for BLKmode values
	returned in naked registers.
	(store_expr): Likewise.
	(store_field): Likewise.

From-SVN: r192641

2012-10-15   Easwaran Raman  <eraman@google.com>

        * optabs.c (emit_cmp_and_jump_insn_1): Add a new parameter to
        specificy the probability of taking the jump.
        (emit_cmp_and_jump_insns): Likewise.
        (expand_compare_and_swap_loop): Make the jump predicted not taken.
        * dojump.c (do_compare_rtx_and_jump): Remove the code attaching
        REG_BR_PROB note and pass probability to emit_cmp_and_jump_insns.
        * cfgbuild.c (compute_outgoing_frequencies): Do not guess outgoing
        probabilities for branches with more than two successors.
        * expr.c (emit_block_move_via_loop): Predict the loop backedge loop
        to be highly taken.
        (try_casesi): Pass the probability of jumping to the default label.
        (try_tablejump): Likewise.
        (do_tablejump): Likewise.
        * expr.h (try_tablejump): Add a new parameter.
        (try_casesi): Likewise.
        (emit_cmp_and_jump_insns): Add probability as default parameter with a
        default value of -1.
        * except.c (sjlj_emit_function_enter): Pass probability to
        emit_cmp_and_jump_insns.
        * stmt.c (case_node): Add new fields PROB and SUBTREE_PROB.
        (do_jump_if_equal): Pass probability for REG_BR_PROB note.
        (add_case_node): Pass estimated probability of jumping to the case
        label.
        (emit_case_decision_tree): Pass default_prob to emit_case_nodes.
        (get_outgoing_edge_probs): New function.
        (conditional_probability): Likewise.
        (reset_out_edges_aux): Likewise.
        (compute_cases_per_edge): Likewise.
        (emit_case_dispatch_table): Update probabilities of edges coming out
        of the switch statement.
        (expand_case): Compute and propagate default edge probability to
        emit_case_dispatch_table.
        (expand_sjlj_dispatch_table): Update calls to add_case_node and
        emit_case_dispatch_table.
        (balance_case_nodes): Update subtree_prob values.
        (emit_case_nodes): Compute edge probabilities and add pass them to
        emit_cmp_and_jump_insns.

testsuite/ChangeLog:
2012-10-15   Easwaran Raman  <eraman@google.com> 
        * gcc.dg/tree-prof/switch-case-1.c: New test case.
        * gcc.dg/tree-prof/switch-case-2.c: New test case.

From-SVN: r192488

	PR rtl-optimization/44194
	* calls.c (expand_call): In the PARALLEL case, copy the return value
	into pseudos instead of spilling it onto the stack.
	* emit-rtl.c (adjust_address_1): Rename ADJUST into ADJUST_ADDRESS and
	add new ADJUST_OBJECT parameter.
	If ADJUST_OBJECT is set, drop the underlying object if it cannot be
	proved that the adjusted memory access is still within its bounds.
	(adjust_automodify_address_1): Adjust call to adjust_address_1.
	(widen_memory_access): Likewise.
	* expmed.c (store_bit_field_1): Call adjust_bitfield_address instead
	of adjust_address.  Do not drop the underlying object of a MEM.
	(store_fixed_bit_field): Likewise.
	(extract_bit_field_1): Likewise.  Fix oversight in recursion.
	(extract_fixed_bit_field): Likewise.
	* expr.h (adjust_address_1): Adjust prototype.
	(adjust_address): Adjust call to adjust_address_1.
	(adjust_address_nv): Likewise.
	(adjust_bitfield_address): New macro.
	(adjust_bitfield_address_nv): Likewise.
	* expr.c (expand_assignment): Handle a PARALLEL in more cases.
	(store_expr): Likewise.
	(store_field): Likewise.

	* dse.c: Fix typos in the head comment.

From-SVN: r191302

	* tree.h (expand_case): Move prototype ...
	* expr.h (expand_case): ...here.
	(expand_sjlj_dispatch_table): New prototype.
	* stmt.c: Include pointer-set.h instead of bitmap.h.
	(expand_case): Use a pointer set instead of a bitmap for
	already-seen labels.  Fold label values here.
	(add_case_node): Don't fold label values here.
	(expand_sjlj_dispatch_table): New function.
	* except.c (sjlj_emit_dispatch_table): Use it.

From-SVN: r191203

gcc/
	* expr.h (can_move_by_pieces): Move prototype from here ...
	* tree.h (can_move_by_pieces): ... to here.
	* optabs.h (set_widening_optab_handler): Use XCNEW.
	* gimplify.c: Do not include expr.h.

	* toplev.c: Do not include dwarf2out.h.
	* config/ia64/ia64.c: Likewise.
	* config/sparc/sparc.c: Likewise.
	* config/sparc/t-sparc (sparc.o): Fix dependencies.

	* Makefile.in (toplev.o): Fix dependencies
	(c-family/c-gimplify.o): Likewise.
	(c-family/c-common.o): Likewise.

c-family/
	* c-gimplify.c: Do not include basic-block.h.
	* c-common.c: Do not include linfuncs.h.

cp/
	* method.c: Do not include tree-pass.h.

fortran/
	* trans.c: Do not include defaults.h.
	* trans-intrinsic.c: Likewise.

java/
	* decl.c: Do not include libfuncs.h.
	* class.c: Do not include defaults.h.
	* jvgenmain.c: Likewise.
	* magnle.c: Likewise.
	* Make-lang.in (decl.o): Fix dependencies.

From-SVN: r189425

	PR tree-optimization/51581
	* expr.h (choose_multiplier): New prototype.
	* expmed.c (choose_multiplier): No longer static.
	Change multiplier_ptr from rtx * to UHWI *.
	(expand_divmod): Adjust callers.
	* tree-vect-patterns.c (vect_recog_sdivmod_pow2_pattern):
	Renamed to...
	(vect_recog_divmod_pattern): ... this.  Pass bb_vinfo as last
	argument to new_stmt_vec_info.  Attempt to optimize also divisions
	by non-pow2 constants if integer vector division isn't supported.
	* tree-vect-stmts.c (vect_analyze_stmt): If node != NULL,
	don't look at pattern stmts and sequences.

	* gcc.c-torture/execute/pr51581-1.c: New test.
	* gcc.c-torture/execute/pr51581-2.c: New test.
	* gcc.dg/vect/pr51581-1.c: New test.
	* gcc.dg/vect/pr51581-2.c: New test.
	* gcc.dg/vect/pr51581-3.c: New test.
	* gcc.target/i386/avx-pr51581-1.c: New test.
	* gcc.target/i386/avx-pr51581-2.c: New test.
	* gcc.target/i386/avx2-pr51581-1.c: New test.
	* gcc.target/i386/avx2-pr51581-2.c: New test.
	* gcc.dg/vect/slp-26.c (main1): Divide by 0x8031 instead of 3.

From-SVN: r188656

gcc/
	* 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.

gcc/testsuite/
	* gcc.dg/memcpy-4.c: Add nomips16 attribute for MIPS targets.
	Increase copy to 5 bytes.  Look for at least two "mem/s/u"s,
	rather than a specific number.

From-SVN: r182801

2011-11-24  Andrew MacLeod  <amacleod@redhat.com>

	* optab.c (maybe_emit_atomic_exchange): New.  Try to emit an
	atomic_exchange pattern.
	(maybe_emit_sync_lock_test_and_set): New.  Try to emit an exchange
	using __sync_lock_test_and_set.
	(maybe_emit_compare_and_swap_exchange_loop): New. Try to emit an
	exchange using a compare_and_swap loop.
	(expand_sync_lock_test_and_set): New.  Expand sync_lock_test_and_set.
	(expand_atomic_test_and_set): New.  Expand test_and_set operation.
	(expand_atomic_exchange): Use new maybe_emit_* functions.
	(expand_atomic_store): Use new maybe_emit_* functions.
	* builtins.c (expand_builtin_sync_lock_test_and_set): Call
	expand_sync_lock_test_and_set routine.
	(expand_builtin_atomic_exchange): Remove parameter from call.
	(expand_builtin_atomic_clear): Use atomic_clear pattern if present.
	(expand_builtin_atomic_test_and_set): Add target and simply call
	expand_atomic_test_and_set.
	(expand_builtin): Add target to expand_builtin_atomic_test_and_set.
	* expr.h (expand_atomic_exchange): Add parameter.
	(expand_sync_lock_test_and_set): New prototype.
	(expand_atomic_test_and_set, expand_atomic_clear): New prototypes.

From-SVN: r181702

	* builtins.c (expand_builtin_mem_thread_fence): Remove.
	(expand_builtin_mem_signal_fence): Remove.
	(expand_builtin_atomic_thread_fence): Use expand_mem_thread_fence.
	(expand_builtin_sync_synchronize): Likewise.
	(expand_builtin_atomic_signal_fence): Use expand_mem_signal_fence.
	* optabs.c (expand_asm_memory_barrier): Split out from
	expand_builtin_mem_signal_fence.
	(expand_mem_thread_fence): New, a combination of code from
	expand_builtin_mem_thread_fence and expand_builtin_sync_synchronize.
	(expand_mem_signal_fence): Moved and renamed from
	expand_builtin_mem_signal_fence.
	(expand_atomic_exchange): Use expand_mem_thread_fence.
	(expand_atomic_load, expand_atomic_store): Likewise.
	* expr.h, optabs.h: Update decls.

From-SVN: r181451

2011-11-07  Andrew MacLeod  <amacleod@redhat.com>

	libstdc++-v3
	* include/bits/atomic_base.h (atomic_thread_fence): Call builtin.
	(atomic_signal_fence): Call builtin.
	(atomic_flag::test_and_set): Call __atomic_exchange when it is lockfree,
	otherwise fall back to call __sync_lock_test_and_set.
	(atomic_flag::clear): Call __atomic_store when it is lockfree,
	otherwise fall back to call __sync_lock_release.

	gcc
	* doc/extend.texi: Docuemnt behaviour change for __atomic_exchange and
	__atomic_store.
	* optabs.c (expand_atomic_exchange): Expand to __sync_lock_test_and_set
	only when originated from that builtin.
	(expand_atomic_store): Expand to __sync_lock_release when originated
	from that builtin.
	* builtins.c (expand_builtin_sync_lock_test_and_set): Add flag that
	expand_atomic_exchange call originated from here.
	(expand_builtin_sync_lock_release): Add flag that expand_atomic_store
	call originated from here.
	(expand_builtin_atomic_exchange): Add origination flag.
	(expand_builtin_atomic_store): Add origination flag.
	* expr.h (expand_atomic_exchange, expand_atomic_store): Add boolean 
	parameters to indicate implementation fall back options.

From-SVN: r181111

From-SVN: r181031

gcc/
	* 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.

From-SVN: r179839

	PR debug/50299
	* calls.c (load_register_parameters): Use use_reg_mode instead
	of use_reg when adding a single register CALL_INSN_FUNCTION_USAGE
	entry.
	(expand_call): Set EXPR_LIST mode to TYPE_MODE of the argument
	for stack CALL_INSN_FUNCTION_USAGE uses.
	* expr.h (use_reg_mode): New prototype.
	(use_reg): Changed into inline around use_reg_mode.
	* expr.c (use_reg): Renamed to...
	(use_reg_mode): ... this.  Added MODE argument, set EXPR_LIST
	mode to that mode instead of VOIDmode.
	* var-tracking.c (prepare_call_arguments): Don't track parameters
	whose EXPR_LIST mode is VOIDmode, BLKmode or X mode isn't convertible
	to it using lowpart_subreg.  Convert VALUE and REG/MEM to the
	EXPR_LIST mode.

From-SVN: r178784

	* params.h (ALLOW_STORE_DATA_RACES): New.
	* params.def (PARAM_ALLOW_STORE_DATA_RACES): New.
	* Makefile.in (expr.o): Depend on PARAMS_H.
	* machmode.h (get_best_mode): Add argument.
	* fold-const.c (optimize_bit_field_compare): Add argument to
	get_best_mode.
	(fold_truthop): Same.
	* ifcvt.c (noce_emit_move_insn): Add argument to store_bit_field.
	* expr.c (emit_group_store): Same.
	(copy_blkmode_from_reg): Same.
	(write_complex_part): Same.
	(optimize_bitfield_assignment_op): Add argument.
	Add argument to get_best_mode.
	(get_bit_range): New.
	(expand_assignment): Calculate maxbits and pass it down
	accordingly.
	(store_field): New argument.
	(expand_expr_real_2): New argument to store_field.
	Include params.h.
	* expr.h (store_bit_field): New argument.
	* stor-layout.c (get_best_mode): Restrict mode expansion by taking
	into account maxbits.
	* calls.c (store_unaligned_arguments_into_pseudos): New argument
	to store_bit_field.
	* expmed.c (store_bit_field_1): New argument.  Use it.
	(store_bit_field): Same.
	(store_fixed_bit_field): Same.
	(store_split_bit_field): Same.
	(extract_bit_field_1): Pass new argument to get_best_mode.
	(extract_bit_field): Same.
	* stmt.c (store_bit_field): Pass new argument to store_bit_field.
	* doc/invoke.texi: Document parameter allow-store-data-races.

From-SVN: r176824

2011-04-29  Richard Guenther  <rguenther@suse.de>

	* expr.h (expand_shift): Rename to ...
	(expand_variable_shift): ... this.
	(expand_shift): Take a constant shift amount.
	* expmed.c (expand_shift): Rename to ...
	(expand_variable_shift): ... this.
	(expand_shift): New wrapper around expand_variable_shift.
	* expr.c (convert_move, emit_group_load_1, emit_group_store,
	optimize_bitfield_assignment_op, store_field, expand_expr_real_2,
	expand_expr_real_1, reduce_to_bit_field_precision): Adjust.
	* expmed.c (store_fixed_bit_field, extract_bit_field_1,
	extract_fixed_bit_field, extract_split_bit_field, expand_mult_const,
	expand_mult, expand_widening_mult, expand_mult_highpart_adjust,
	extract_high_half, expand_sdiv_pow2, expand_divmod, emit_cstore,
	emit_store_flag_1, emit_store_flag): Likewise.
	* builtins.c (expand_builtin_signbit): Likewise.
	* calls.c (load_register_parameters): Likewise.
	* function.c (assign_parm_setup_block): Likewise.
	* lower-subreg.c (resolve_shift_zext): Likewise.
	* optabs.c (widen_bswap, expand_abs_nojump,
	expand_one_cmpl_abs_nojump, expand_float): Likewise.
	* spu/spu.c (spu_expand_extv): Likewise.
	* sparc/sparc.c (sparc32_initialize_trampoline): Likewise.

From-SVN: r173157

gcc/
2011-03-21  Richard Sandiford  <richard.sandiford@linaro.org>

	* expr.h (prepare_operand): Move to...
	* optabs.h (prepare_operand): ...here and change the insn code
	parameter from "int" to "enum insn_code".
	(insn_operand_matches): Declare.
	* expr.c (init_expr_target): Use insn_operand_matches.
	(compress_float_constant): Likewise.
	* function.c (safe_insn_predicate, assign_parm_setup_reg): Likewise.
	* optabs.c (can_compare_p, prepare_cmp_insn): Likewise.
	(emit_cmp_and_jump_insn_1, gen_add2_insn, gen_add3_insn): Likewise.
	(have_add2_insn, gen_sub2_insn, gen_sub3_insn, have_sub2_insn): Likewise.
	(gen_cond_trap): Likewise.
	(prepare_operand): Likewise.  Change icode to an insn_code.
	(insn_operand_matches): New function.
	* reload.c (find_reloads_address_1): Use insn_operand_matches.
	* reload1.c (gen_reload): Likewise.
	* targhooks.c (default_secondary_reload): Likewise.

From-SVN: r171270

        * explow.c (emit_stack_save): Remove 'after' parameter.
        (emit_stack_restore): Likewise.
        * expr.h: Update to match.
        * builtins.c, calls.c, stmt.c: Likewise.
        * config/alpha/alpha.md, config/avr/avr.md: Likewise.
        * config/mips/mips.md, config/pa/pa.md, config/vax/vax.md: Likewise.
        * function.c (expand_function_end): Insert the emit_stack_save
        sequence before parm_birth_insn instead of after.

From-SVN: r170663

	* expr.c (emit_group_load_1): Update calls to extract_bit_field.
	(copy_blkmode_from_reg): Likewise.
	(read_complex_part): Likewise.
	(expand_expr_real_1): Calculate packedp and pass it to
	extract_bit_field.
	* expr.h (extract_bit_field): Update declaration.
	* calls.c (store_unaligned_arguments_into_pseudos): Update call
	to extract_bit_field.
	* expmed.c (extract_fixed_bit_field): Update calls to
	extract_fixed_bit_field.
	(store_split_bit_field): Likewise.
	(extract_bit_field_1): Add new argument packedp.
	(extract_bit_field): Add new argument packedp.
	(extract_fixed_bit_field): Add new argument packedp and let
	packed attribute override volatile.
	* stmt.c (expand_return): Update call to extract_bit_field.

From-SVN: r165799

	PR rtl-opt/33721
	* explow.c (allocate_dynamic_stack_space): Add REQUIRED_ALIGN parm,
	remove TARGET parm, convert KNOWN_ALIGN parm to SIZE_ALIGN.  Honor
	required_align, tidy the code a bit.  Emit split_stack code in the
	right place.  Mark the return value with the alignment properly.
	* expr.h (allocate_dynamic_stack_space): Update decl.
	* builtins.c (expand_builtin_apply): Update call to
	allocate_dynamic_stack_space.
	(expand_builtin_alloca): Likewise.  Remove TARGET parameter.
	* calls.c (initialize_argument_information): Update call to
	allocate_dynamic_stack_space.
	(expand_call): Likewise.

	* cfgexpand.c (get_decl_align_unit): Don't limit alignment.
	Don't update_stack_alignment here.
	(alloc_stack_frame_space): Make ALIGN unsigned.
	(stack_var_cmp): Sort by alignment too.
	(partition_stack_vars): Don't merge large and small alignment vars.
	(expand_one_stack_var_at): Add BASE and BASE_ALIGN parameters.
	Take care when BASE is not virtual_stack_vars_rtx.
	(expand_stack_vars): Allocate dynamic stack space for large
	alignment variables.
	(expand_one_stack_var): Update all to expand_one_stack_var_at.
	(defer_stack_allocation): True for large alignment vars.
	(update_stack_alignment): Merge into ...
	(expand_one_var): ... here.
	(gimple_expand_cfg): Place code from expand_stack_vars.

From-SVN: r165240

	Stack usage support
	* common.opt (-fstack-usage): New option.
	* doc/invoke.texi (Debugging options): Document it.
	* builtins.c (expand_builtin_apply): Pass TRUE as 4th argument to
	allocate_dynamic_stack_space.
	(expand_builtin_alloca): Add 4th bool parameter CANNOT_ACCUMULATE
	and propagate it to allocate_dynamic_stack_space.
	(expand_builtin) <BUILT_IN_ALLOCA>: Adjust for above change.
	* calls.c (initialize_argument_information): Pass TRUE as 4th
	argument to allocate_dynamic_stack_space.
	(expand_call): Set current_function_has_unbounded_dynamic_stack_size
	to 1 when pushing a variable-sized argument onto the stack.  Pass
	TRUE as 4th argument to allocate_dynamic_stack_space.
	Update current_function_pushed_stack_size.
	(emit_library_call_value_1): Likewise.
	* explow.c (allocate_dynamic_stack_space): Add 4th bool parameter
	CANNOT_ACCUMULATE.  If flag_stack_usage, look into the size and
	attempt to find an upper bound.  Remove redundant code for the
	SETJMP_VIA_SAVE_AREA case.
	* expr.h (allocate_dynamic_stack_space): Add 4th bool parameter.
	* function.h (struct stack_usage): New structure.
	(current_function_static_stack_size): New macro.
	(current_function_dynamic_stack_size): Likewise.
	(current_function_pushed_stack_size): Likewise.
	(current_function_dynamic_alloc_count): Likewise.
	(current_function_has_unbounded_dynamic_stack_size): Likewise.
	(current_function_allocates_dynamic_stack_space): Likewise.
	(struct function): Add new field 'su'.
	* function.c (instantiate_virtual_regs): If SETJMP_VIA_SAVE_AREA,
	add the value of the dynamic offset to the dynamic stack usage.
	(gimplify_parameters): Set ALLOCA_FOR_VAR_P on call to BUILT_IN_ALLOCA
	for variable-sized objects.
	(prepare_function_start): Allocate cfun->su if flag_stack_usage.
	(rest_of_handle_thread_prologue_and_epilogue): Call output_stack_usage.
	* gimplify.c (gimplify_decl_expr): Set ALLOCA_FOR_VAR_P on call to
	BUILT_IN_ALLOCA for variable-sized objects.
	* output.h (output_stack_usage): Declare.
	* toplev.c (stack_usage_file): New file pointer.
	(output_stack_usage): New function.
	(open_auxiliary_file): Likewise.
	(lang_dependent_init): Open file if flag_stack_usage is set.
	(finalize): Close file if stack_usage_file is not null.
	* tree.h (ALLOCA_FOR_VAR_P): New macro.
	* config/alpha/alpha.c (compute_frame_size): New function.
	(alpha_expand_prologue): Use it.
	(alpha_start_function): Likewise.
	(alpha_expand_epilogue): Likewise.  Set stack usage info.
	* config/i386/i386.c (ix86_expand_prologue): Likewise.
	* config/ia64/ia64.c (ia64_expand_prologue): Likewise.
	* config/mips/mips.c (mips_expand_prologue): Likewise.
	* config/pa/pa.c (hppa_expand_prologue): Likewise.
	* config/rs6000/rs6000.c (rs6000_emit_prologue): Likewise.
	* config/sparc/sparc.c (sparc_expand_prologue): Likewise.
testsuite/
	* lib/gcc-dg.exp (cleanup-stack-usage): New procedure.
	* lib/scanasm.exp (scan-stack-usage): Likewise.
	(scan-stack-usage-not): Likewise.
	* gcc.dg/stack-usage-1.c: New test.
	* gcc.target/i386/stack-usage-realign.c: Likewise.

From-SVN: r163660

2010-07-03  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	* c-family/c-common.c (IN_GCC_FRONTEND): Do not undef.
	Do not include expr.h
	(vector_mode_valid_p): Move here.
	* expr.c (vector_mode_valid_p): Move to c-common.c.
	* expr.h (vector_mode_valid_p): Do not declare here.
	* system.h: Poison GCC_EXPR_H in front-ends.
	* Makefile.in: Update dependencies.

From-SVN: r161785

	* expr.h (emit_stack_probe): Declare.
	* explow.c (emit_stack_probe): Make global.
	(anti_adjust_stack_and_probe): Fix comments.
	* config/sparc/linux.h (STACK_CHECK_STATIC_BUILTIN): Define to 1.
	* config/sparc/linux64.h (STACK_CHECK_STATIC_BUILTIN): Likewise.
	* config/sparc/sol2.h (STACK_CHECK_STATIC_BUILTIN): Likewise.
	* config/sparc/sparc.c: Include except.h.
	(sparc_emit_probe_stack_range): New function.
	(output_probe_stack_range): Likewise.
	(sparc_expand_prologue): Invoke sparc_emit_probe_stack_range if static
	built-in stack checking is enabled.
	* config/sparc/sparc-protos.h (output_probe_stack_range): Declare.
	* config/sparc/sparc.md (UNSPECV_PROBE_STACK_RANGE): New constant.
	(probe_stack_range): New insn.

From-SVN: r161749

	* mkconfig.sh: Include insn-flags.h and insn-constants.h before
	defaults.h.
	* except.h: Move MUST_USE_SJLJ_EXCEPTIONS and USING_SJLJ_EXCEPTIONS
	to defaults.h
	* expr.h (BRANCH_COST, MOVE_RATIO, CLEAR_RATIO, SET_RATIO,
	DEFAULT_FUNCTION_ARG_PADDING, FUNCTION_ARG_PADDING,
	FUNCTION_ARG_BOUNDARY, STACK_SAVEAREA_MODE, STACK_SIZE_MODE,
	STACK_CHECK_BUILTIN, STACK_CHECK_STATIC_BUILTIN,
	STACK_CHECK_PROBE_INTERVAL_EXP, STACK_CHECK_MOVING_SP,
	STACK_OLD_CHECK_PROTECT, STACK_CHECK_PROTECT,
	STACK_CHECK_MAX_FRAME_SIZE, STACK_CHECK_FIXED_FRAME_SIZE,
	STACK_CHECK_MAX_VAR_SIZE): Move target macro defaults to defaults.h.
	* defaults.h: Updated for above mentioned changes.

From-SVN: r160195

	* basic-block.h (struct control_flow_graph): Move last_label_uid field up.
	* df.h (struct df_base_ref): Move regno field up.
	* dwarf2out.c (struct dw_fde_struct): Move funcdef_number field down.
	* expr.h (struct separate_ops): Move location field up.
	* optabs.h (struct optab_d): Move libcall_basename field down.
	* config/i386/i386.c (struct ix86_frame): Move red_zone_size up.
	* config/i386/i386.h (struct machine_function): Convert call_abi field
	into a bitfield.  Move cfa field to the end of the structure.

From-SVN: r160025

	PR middle-end/42233
	* expr.h (jumpifnot, jumpifnot_1, jumpif, jumpif_1, do_jump,
	do_jump_1, do_compare_rtx_and_jump): Add PROB argument.
	* dojump.c: Include output.h.
	(inv): New inline function.
	(jumpifnot, jumpifnot_1, jumpif, jumpif_1, do_jump_1, do_jump,
	do_jump_by_parts_greater_rtx, do_jump_by_parts_greater,
	do_jump_by_parts_zero_rtx, do_jump_by_parts_equality_rtx,
	do_jump_by_parts_equality, do_compare_and_jump): Add PROB
	argument, pass it down to other calls.
	(do_compare_rtx_and_jump): Likewise.  If PROB is not -1,
	add REG_BR_PROB note to the conditional jump.
	* cfgexpand.c (add_reg_br_prob_note): Removed.
	(expand_gimple_cond): Don't call it, add the probability
	as last argument to jumpif_1/jumpifnot_1.
	* Makefile.in (dojump.o): Depend on output.h.
	* builtins.c (expand_errno_check): Adjust do_compare_rtx_and_jump
	callers.
	* expmed.c (emit_store_flag_force, do_cmp_and_jump): Likewise.
	* stmt.c (do_jump_if_equal): Likewise.
	* cfgrtl.c (rtl_lv_add_condition_to_bb): Likewise.
	* loop-unswitch.c (compare_and_jump_seq): Likewise.
	* config/rs6000/rs6000.c (rs6000_aix_emit_builtin_unwind_init):
	Likewise.
	* optabs.c (expand_doubleword_shift, expand_abs): Likewise.
	* expr.c (expand_expr_real_1): Adjust do_jump, jumpifnot and
	jumpifnot_1 callers.
	(expand_expr_real_2): Adjust jumpifnot_1 and do_compare_rtx_and_jump
	callers.
	(store_expr): Adjust jumpifnot caller.
	(store_constructor): Adjust jumpif caller.

From-SVN: r156889

	* doc/tm.texi (STACK_CHECK_PROBE_LOAD): Delete.
	* expr.h (STACK_CHECK_PROBE_LOAD): Likewise.
	* explow.c (emit_stack_probe): Do not test STACK_CHECK_PROBE_LOAD.
	* system.h (STACK_CHECK_PROBE_LOAD): Poison.

From-SVN: r155199

2009-11-25  H.J. Lu  <hongjiu.lu@intel.com>

	* alias.c: Remove trailing white spaces.
	* alloc-pool.c: Likewise.
	* alloc-pool.h: Likewise.
	* attribs.c: Likewise.
	* auto-inc-dec.c: Likewise.
	* basic-block.h: Likewise.
	* bb-reorder.c: Likewise.
	* bt-load.c: Likewise.
	* builtins.c: Likewise.
	* builtins.def: Likewise.
	* c-common.c: Likewise.
	* c-common.h: Likewise.
	* c-cppbuiltin.c: Likewise.
	* c-decl.c: Likewise.
	* c-format.c: Likewise.
	* c-lex.c: Likewise.
	* c-omp.c: Likewise.
	* c-opts.c: Likewise.
	* c-parser.c: Likewise.
	* c-pretty-print.c: Likewise.
	* c-tree.h: Likewise.
	* c-typeck.c: Likewise.
	* caller-save.c: Likewise.
	* calls.c: Likewise.
	* cfg.c: Likewise.
	* cfganal.c: Likewise.
	* cfgexpand.c: Likewise.
	* cfghooks.c: Likewise.
	* cfghooks.h: Likewise.
	* cfglayout.c: Likewise.
	* cfgloop.c: Likewise.
	* cfgloop.h: Likewise.
	* cfgloopmanip.c: Likewise.
	* cfgrtl.c: Likewise.
	* cgraph.c: Likewise.
	* cgraph.h: Likewise.
	* cgraphbuild.c: Likewise.
	* cgraphunit.c: Likewise.
	* cif-code.def: Likewise.
	* collect2.c: Likewise.
	* combine.c: Likewise.
	* convert.c: Likewise.
	* coverage.c: Likewise.
	* crtstuff.c: Likewise.
	* cse.c: Likewise.
	* cselib.c: Likewise.
	* dbgcnt.c: Likewise.
	* dbgcnt.def: Likewise.
	* dbgcnt.h: Likewise.
	* dbxout.c: Likewise.
	* dce.c: Likewise.
	* ddg.c: Likewise.
	* ddg.h: Likewise.
	* defaults.h: Likewise.
	* df-byte-scan.c: Likewise.
	* df-core.c: Likewise.
	* df-problems.c: Likewise.
	* df-scan.c: Likewise.
	* df.h: Likewise.
	* dfp.c: Likewise.
	* diagnostic.c: Likewise.
	* diagnostic.h: Likewise.
	* dominance.c: Likewise.
	* domwalk.c: Likewise.
	* double-int.c: Likewise.
	* double-int.h: Likewise.
	* dse.c: Likewise.
	* dwarf2asm.c: Likewise.
	* dwarf2asm.h: Likewise.
	* dwarf2out.c: Likewise.
	* ebitmap.c: Likewise.
	* ebitmap.h: Likewise.
	* emit-rtl.c: Likewise.
	* et-forest.c: Likewise.
	* except.c: Likewise.
	* except.h: Likewise.
	* expmed.c: Likewise.
	* expr.c: Likewise.
	* expr.h: Likewise.
	* final.c: Likewise.
	* flags.h: Likewise.
	* fold-const.c: Likewise.
	* function.c: Likewise.
	* function.h: Likewise.
	* fwprop.c: Likewise.
	* gcc.c: Likewise.
	* gcov-dump.c: Likewise.
	* gcov-io.c: Likewise.
	* gcov-io.h: Likewise.
	* gcov.c: Likewise.
	* gcse.c: Likewise.
	* genattr.c: Likewise.
	* genattrtab.c: Likewise.
	* genautomata.c: Likewise.
	* genchecksum.c: Likewise.
	* genconfig.c: Likewise.
	* genflags.c: Likewise.
	* gengtype-parse.c: Likewise.
	* gengtype.c: Likewise.
	* gengtype.h: Likewise.
	* genmddeps.c: Likewise.
	* genmodes.c: Likewise.
	* genopinit.c: Likewise.
	* genpreds.c: Likewise.
	* gensupport.c: Likewise.
	* ggc-common.c: Likewise.
	* ggc-page.c: Likewise.
	* ggc-zone.c: Likewise.
	* ggc.h: Likewise.
	* gimple-iterator.c: Likewise.
	* gimple-low.c: Likewise.
	* gimple-pretty-print.c: Likewise.
	* gimple.c: Likewise.
	* gimple.def: Likewise.
	* gimple.h: Likewise.
	* gimplify.c: Likewise.
	* graphds.c: Likewise.
	* graphite-clast-to-gimple.c: Likewise.
	* gthr-nks.h: Likewise.
	* gthr-posix.c: Likewise.
	* gthr-posix.h: Likewise.
	* gthr-posix95.h: Likewise.
	* gthr-single.h: Likewise.
	* gthr-tpf.h: Likewise.
	* gthr-vxworks.h: Likewise.
	* gthr.h: Likewise.
	* haifa-sched.c: Likewise.
	* hard-reg-set.h: Likewise.
	* hooks.c: Likewise.
	* hooks.h: Likewise.
	* hosthooks.h: Likewise.
	* hwint.h: Likewise.
	* ifcvt.c: Likewise.
	* incpath.c: Likewise.
	* init-regs.c: Likewise.
	* integrate.c: Likewise.
	* ipa-cp.c: Likewise.
	* ipa-inline.c: Likewise.
	* ipa-prop.c: Likewise.
	* ipa-pure-const.c: Likewise.
	* ipa-reference.c: Likewise.
	* ipa-struct-reorg.c: Likewise.
	* ipa-struct-reorg.h: Likewise.
	* ipa-type-escape.c: Likewise.
	* ipa-type-escape.h: Likewise.
	* ipa-utils.c: Likewise.
	* ipa-utils.h: Likewise.
	* ipa.c: Likewise.
	* ira-build.c: Likewise.
	* ira-color.c: Likewise.
	* ira-conflicts.c: Likewise.
	* ira-costs.c: Likewise.
	* ira-emit.c: Likewise.
	* ira-int.h: Likewise.
	* ira-lives.c: Likewise.
	* ira.c: Likewise.
	* jump.c: Likewise.
	* lambda-code.c: Likewise.
	* lambda-mat.c: Likewise.
	* lambda-trans.c: Likewise.
	* lambda.h: Likewise.
	* langhooks.c: Likewise.
	* lcm.c: Likewise.
	* libgcov.c: Likewise.
	* lists.c: Likewise.
	* loop-doloop.c: Likewise.
	* loop-init.c: Likewise.
	* loop-invariant.c: Likewise.
	* loop-iv.c: Likewise.
	* loop-unroll.c: Likewise.
	* lower-subreg.c: Likewise.
	* lto-cgraph.c: Likewise.
	* lto-compress.c: Likewise.
	* lto-opts.c: Likewise.
	* lto-section-in.c: Likewise.
	* lto-section-out.c: Likewise.
	* lto-streamer-in.c: Likewise.
	* lto-streamer-out.c: Likewise.
	* lto-streamer.c: Likewise.
	* lto-streamer.h: Likewise.
	* lto-symtab.c: Likewise.
	* lto-wpa-fixup.c: Likewise.
	* matrix-reorg.c: Likewise.
	* mcf.c: Likewise.
	* mode-switching.c: Likewise.
	* modulo-sched.c: Likewise.
	* omega.c: Likewise.
	* omega.h: Likewise.
	* omp-low.c: Likewise.
	* optabs.c: Likewise.
	* optabs.h: Likewise.
	* opts-common.c: Likewise.
	* opts.c: Likewise.
	* params.def: Likewise.
	* params.h: Likewise.
	* passes.c: Likewise.
	* plugin.c: Likewise.
	* postreload-gcse.c: Likewise.
	* postreload.c: Likewise.
	* predict.c: Likewise.
	* predict.def: Likewise.
	* pretty-print.c: Likewise.
	* pretty-print.h: Likewise.
	* print-rtl.c: Likewise.
	* print-tree.c: Likewise.
	* profile.c: Likewise.
	* read-rtl.c: Likewise.
	* real.c: Likewise.
	* recog.c: Likewise.
	* reg-stack.c: Likewise.
	* regcprop.c: Likewise.
	* reginfo.c: Likewise.
	* regmove.c: Likewise.
	* regrename.c: Likewise.
	* regs.h: Likewise.
	* regstat.c: Likewise.
	* reload.c: Likewise.
	* reload1.c: Likewise.
	* resource.c: Likewise.
	* rtl.c: Likewise.
	* rtl.def: Likewise.
	* rtl.h: Likewise.
	* rtlanal.c: Likewise.
	* sbitmap.c: Likewise.
	* sched-deps.c: Likewise.
	* sched-ebb.c: Likewise.
	* sched-int.h: Likewise.
	* sched-rgn.c: Likewise.
	* sched-vis.c: Likewise.
	* sdbout.c: Likewise.
	* sel-sched-dump.c: Likewise.
	* sel-sched-dump.h: Likewise.
	* sel-sched-ir.c: Likewise.
	* sel-sched-ir.h: Likewise.
	* sel-sched.c: Likewise.
	* sel-sched.h: Likewise.
	* sese.c: Likewise.
	* sese.h: Likewise.
	* simplify-rtx.c: Likewise.
	* stack-ptr-mod.c: Likewise.
	* stmt.c: Likewise.
	* stor-layout.c: Likewise.
	* store-motion.c: Likewise.
	* stringpool.c: Likewise.
	* stub-objc.c: Likewise.
	* sync-builtins.def: Likewise.
	* target-def.h: Likewise.
	* target.h: Likewise.
	* targhooks.c: Likewise.
	* targhooks.h: Likewise.
	* timevar.c: Likewise.
	* tlink.c: Likewise.
	* toplev.c: Likewise.
	* toplev.h: Likewise.
	* tracer.c: Likewise.
	* tree-affine.c: Likewise.
	* tree-affine.h: Likewise.
	* tree-browser.def: Likewise.
	* tree-call-cdce.c: Likewise.
	* tree-cfg.c: Likewise.
	* tree-cfgcleanup.c: Likewise.
	* tree-chrec.c: Likewise.
	* tree-chrec.h: Likewise.
	* tree-complex.c: Likewise.
	* tree-data-ref.c: Likewise.
	* tree-data-ref.h: Likewise.
	* tree-dfa.c: Likewise.
	* tree-dump.c: Likewise.
	* tree-dump.h: Likewise.
	* tree-eh.c: Likewise.
	* tree-flow-inline.h: Likewise.
	* tree-flow.h: Likewise.
	* tree-if-conv.c: Likewise.
	* tree-inline.c: Likewise.
	* tree-into-ssa.c: Likewise.
	* tree-loop-distribution.c: Likewise.
	* tree-loop-linear.c: Likewise.
	* tree-mudflap.c: Likewise.
	* tree-nested.c: Likewise.
	* tree-nomudflap.c: Likewise.
	* tree-nrv.c: Likewise.
	* tree-object-size.c: Likewise.
	* tree-optimize.c: Likewise.
	* tree-outof-ssa.c: Likewise.
	* tree-parloops.c: Likewise.
	* tree-pass.h: Likewise.
	* tree-phinodes.c: Likewise.
	* tree-predcom.c: Likewise.
	* tree-pretty-print.c: Likewise.
	* tree-profile.c: Likewise.
	* tree-scalar-evolution.c: Likewise.
	* tree-ssa-address.c: Likewise.
	* tree-ssa-alias.c: Likewise.
	* tree-ssa-ccp.c: Likewise.
	* tree-ssa-coalesce.c: Likewise.
	* tree-ssa-copy.c: Likewise.
	* tree-ssa-copyrename.c: Likewise.
	* tree-ssa-dce.c: Likewise.
	* tree-ssa-dom.c: Likewise.
	* tree-ssa-dse.c: Likewise.
	* tree-ssa-forwprop.c: Likewise.
	* tree-ssa-ifcombine.c: Likewise.
	* tree-ssa-live.c: Likewise.
	* tree-ssa-live.h: Likewise.
	* tree-ssa-loop-ch.c: Likewise.
	* tree-ssa-loop-im.c: Likewise.
	* tree-ssa-loop-ivcanon.c: Likewise.
	* tree-ssa-loop-ivopts.c: Likewise.
	* tree-ssa-loop-manip.c: Likewise.
	* tree-ssa-loop-niter.c: Likewise.
	* tree-ssa-loop-prefetch.c: Likewise.
	* tree-ssa-loop-unswitch.c: Likewise.
	* tree-ssa-loop.c: Likewise.
	* tree-ssa-math-opts.c: Likewise.
	* tree-ssa-operands.c: Likewise.
	* tree-ssa-operands.h: Likewise.
	* tree-ssa-phiopt.c: Likewise.
	* tree-ssa-phiprop.c: Likewise.
	* tree-ssa-pre.c: Likewise.
	* tree-ssa-propagate.c: Likewise.
	* tree-ssa-reassoc.c: Likewise.
	* tree-ssa-sccvn.c: Likewise.
	* tree-ssa-sink.c: Likewise.
	* tree-ssa-structalias.c: Likewise.
	* tree-ssa-ter.c: Likewise.
	* tree-ssa-threadedge.c: Likewise.
	* tree-ssa-threadupdate.c: Likewise.
	* tree-ssa-uncprop.c: Likewise.
	* tree-ssa.c: Likewise.
	* tree-ssanames.c: Likewise.
	* tree-switch-conversion.c: Likewise.
	* tree-tailcall.c: Likewise.
	* tree-vect-data-refs.c: Likewise.
	* tree-vect-generic.c: Likewise.
	* tree-vect-loop-manip.c: Likewise.
	* tree-vect-loop.c: Likewise.
	* tree-vect-patterns.c: Likewise.
	* tree-vect-slp.c: Likewise.
	* tree-vect-stmts.c: Likewise.
	* tree-vectorizer.c: Likewise.
	* tree-vectorizer.h: Likewise.
	* tree-vrp.c: Likewise.
	* tree.c: Likewise.
	* tree.def: Likewise.
	* tree.h: Likewise.
	* treestruct.def: Likewise.
	* unwind-compat.c: Likewise.
	* unwind-dw2-fde-glibc.c: Likewise.
	* unwind-dw2.c: Likewise.
	* value-prof.c: Likewise.
	* value-prof.h: Likewise.
	* var-tracking.c: Likewise.
	* varasm.c: Likewise.
	* varpool.c: Likewise.
	* vec.c: Likewise.
	* vec.h: Likewise.
	* vmsdbgout.c: Likewise.
	* web.c: Likewise.
	* xcoffout.c: Likewise.

From-SVN: r154645

	PR target/10127
	PR ada/20548
	* expr.h (anti_adjust_stack_and_probe): Declare.
	* explow.c (anti_adjust_stack_and_probe): Make global, add ADJUST_BACK
	parameter and rewrite head comment.
	(allocate_dynamic_stack_space): Adjust call to above function.
	* function.c (expand_function_end): Handle STACK_CHECK_MOVING_SP.

	* tree.h (dwarf2out_args_size): Delete.
	* dwarf2out.c (dwarf2out_args_size): Make static and move around.
	(dwarf2out_args_size_adjust): Delete prototype and move around.
	(dwarf2out_frame_debug_expr): Do not record arg size adjustments for
	ACCUMULATE_OUTGOING_ARGS targets.

From-SVN: r154079

	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.

From-SVN: r153877

2009-10-26  Ben Elliston  <bje@au.ibm.com>
	    Michael Meissner  <meissner@linux.vnet.ibm.com>
	    Ulrich Weigand  <uweigand@de.ibm.com>

	* doc/extend.texi (Named Address Spaces): New section.
	* coretypes.h (addr_space_t): New type.
	(ADDR_SPACE_GENERIC): New define.
	(ADDR_SPACE_GENERIC_P): New macro.

	* doc/tm.texi (Named Address Spaces): New section.
	(TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P): Document.
	(TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS): Document.
	(TARGET_ADDR_SPACE_SUBSET_P): Document.
	(TARGET_ADDR_SPACE_CONVERT): Document.
	* target.h (struct gcc_target): Add addr_space substructure.
	* target-def.h (TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P): Define.
	(TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS): Likewise.
	(TARGET_ADDR_SPACE_SUBSET_P): Likewise.
	(TARGET_ADDR_SPACE_CONVERT): Likewise.
	(TARGET_ADDR_SPACE_HOOKS): Likewise.
	(TARGET_INITIALIZER): Initialize addr_space hooks.
	* targhooks.c (default_addr_space_legitimate_address_p): New function.
	(default_addr_space_legitimize_address): Likewise.
	(default_addr_space_subset_p): Likewise.
	(default_addr_space_convert): Likewise.
	* targhooks.h (default_addr_space_legitimate_address_p): Add prototype.
	(default_addr_space_legitimize_address): Likewise.
	(default_addr_space_subset_p): Likewise.
	(default_addr_space_convert): Likewise.

	* doc/rtl.texi (MEM_ADDR_SPACE): Document.
	* rtl.h (mem_attrs): Add ADDRSPACE memory attribute.
	(MEM_ADDR_SPACE): New macro.
	* emit-rtl.c (get_mem_attrs): Add ADDRSPACE argument and set
	address space memory attribute.
	(mem_attrs_htab_hash): Handle address space memory attribute.
	(mem_attrs_htab_eq): Likewise.
	(set_mem_attributes_minus_bitpos): Likewise.
	(set_mem_alias_set): Likewise.
	(set_mem_align): Likewise.
	(set_mem_expr): Likewise.
	(set_mem_offset): Likewise.
	(set_mem_size): Likewise.
	(adjust_address_1): Likewise.
	(offset_address): Likewise.
	(widen_memoy_address): Likewise.
	(get_spill_slot_decl): Likewise.
	(set_mem_attrs_for_spill): Likewise.
	(set_mem_addr_space): New function.
	* emit-rtl.h (set_mem_addr_space): Add prototype.
	* print-rtl.c (print_rtx): Print address space memory attribute.
	* expr.c (expand_assignment): Set address space memory attribute
	of generated MEM RTXes as appropriate.
	(expand_expr_real_1): Likewise.
	* cfgexpand.c (expand_debug_expr): Likewise.
	* tree-ssa-loop-ivopts.c (produce_memory_decl_rtl): Likewise.

	* tree.h (struct tree_base): Add address_space bitfield.  Reduce
	size of "spare" bitfield.
	(TYPE_ADDR_SPACE): New macro.
	(ENCODE_QUAL_ADDR_SPACE): Likewise.
	(DECODE_QUAL_ADDR_SPACE): Likewise.
	(CLEAR_QUAL_ADDR_SPACE): Likewise.
	(KEEP_QUAL_ADDR_SPACE): Likewise.
	(TYPE_QUALS): Encode type address space.
	(TYPE_QUALS_NO_ADDR_SPACE): New macro.
	* tree.c (set_type_quals): Set type address space.
	(build_array_type): Inherit array address space from element type.
	* print-tree.c (print_node_brief): Print type address space.
	(print_node): Likewise.
	* tree-pretty-print.c (dump_generic_node): Likewise.

	* explow.c (memory_address): Rename to ...
	(memory_address_addr_space): ... this.  Add ADDRSPACE argument.
	Use address-space aware variants of memory address routines.
	* recog.c (memory_address_p): Rename to ...
	(memory_address_addr_space_p): ... this.  Add ADDSPACE argument.
	Use address-space aware variants of memory address routines.
	(offsettable_address_p): Rename to ...
	(offsettable_address_addr_space_p): ... this.  Add ADDRSPACE argument.
	Use address-space aware variants of memory address routines.
	* reload.c (strict_memory_address_p): Rename to ...
	(strict_memory_address_addr_space_p): ... this.  Add ADDSPACE argument.
	Use address-space aware variants of memory address routines.
	(maybe_memory_address_p): Rename to ...
	(maybe_memory_address_addr_space_p): ... this.  Add ADDSPACE argument.
	Use address-space aware variants of memory address routines.
	* expr.h (memory_address_addr_space): Add prototype.
	(memory_address): Define as macro.
	* recog.h (memory_address_addr_space_p): Add prototype.
	(memory_address_p): Define as macro.
	(offsettable_address_addr_space_p): Add prototype.
	(offsettable_address_p): Define as macro.
	(strict_memory_address_addr_space_p): Add prototype.
	(strict_memory_address_p): Define as macro.

	* combine.c (find_split_point): Use address-space aware variants
	of memory address routines.
	* emit-rtl.c (operand_subword): Likewise.
	(change_address_1): Likewise.
	(adjust_address_1): Likewise.
	(offset_address): Likewise.
	* expr.c (emit_move_insn): Likewise.
	(expand_assignment): Likewise.
	(expand_expr_real_1): Likewise.
	* recog.c (verify_changes): Likewise.
	(general_operand): Likewise.
	(offsettable_memref_p): Likewise.
	(offsettable_nonstrict_memref_p): Likewise.
	(constrain_operands): Likewise.
	* reload.c (get_secondary_mem): Likewise.
	(find_reloads_toplev): Likewise.
	(find_reloads_address): Likewise.
	(find_reloads_subreg_address): Likewise.
	* reload1.c (reload): Likewise.
	* rtlhooks.c (gen_lowpart_if_possible): Likewise.
	* rtl.h (address_cost): Add ADDRSPACE argument.
	* rtlanal.c (address_cost): Add ADDRSPACE argument.  Use address-space
	aware variant of memory address routines.
	* loop-invariant.c (create_new_invariant): Update address_cost call.
	* tree-ssa-loop-ivopts.c (computation_cost): Likewise.
	* fwprop.c (should_replace_address): Add ADDRSPACE argument.
	Use address-space aware variant of memory address routines.
	(propagate_rtx_1): Update call to should_replace_address.
	* tree-flow.h (multiplier_allowed_in_address_p): Add ADDRSPACE
	argument.
	* tree-ssa-loop-ivopts.c (multiplier_allowed_in_address_p): Add
	ADDRSPACE argument.  Use per-address-space instead of global cache.
	Use address-space aware variant of memory address routines.
	(get_address_cost): Likewise.
	(get_computation_cost_at): Update calls.
	* tree-ssa-address.c (valid_mem_ref_p): Add ADDRSPACE argument.
	Use address-space aware variant of memory address routines.
	(create_mem_ref_raw): Update call to valid_mem_ref_p.
	(most_expensive_mult_to_index): Update call to
	multiplier_allowed_in_address_p.

	* dwarf2out.c (modified_type_die): Output DW_AT_address_class
	attribute to indicate named address spaces.

	* varasm.c (get_variable_section): DECLs in named address spaces
	cannot be "common".

	* reload.c (find_reloads_address): Do not use LEGITIMIZE_RELOAD_ADDRESS
	for addresses in a non-generic address space.

	* expr.c (emit_block_move_hints): Do not use libcalls for
	memory in non-generic address spaces.
	(clear_storage_hints): Likewise.
	(expand_assignment): Likewise.

	* fold-const.c (operand_equal_p): Expressions refering to different
	address spaces are not equivalent.

	* rtl.c (rtx_equal_p_cb): MEMs refering to different address
	spaces are not equivalent.
	(rtx_equal_p): Likewise.
	* cse.c (exp_equiv_p): Likewise.
	* jump.c (rtx_renumbered_equal_p): Likewise.
	* reload.c (operands_match_p): Likewise.

	* alias.c (nonoverlapping_memrefs_p): MEMs refering to different
	address spaces may alias.
	(true_dependence): Likewise.
	(canon_true_dependence): Likewise.
	(write_dependence_p): Likewise.

	* dse.c (canon_address): Handle named address spaces.
	* ifcvt.c (noce_try_cmove_arith): Likewise.

	* tree.def (ADDR_SPACE_CONVERT_EXPR): New tree code.
	* expr.c (expand_expr_real_2): Expand ADDR_SPACE_CONVERT_EXPR.
	* convert.c (convert_to_pointer): Generate ADDR_SPACE_CONVERT_EXPR
	to handle conversions between different address spaces.
	* fold-const.c (fold_convert_loc): Likewise.
	(fold_unary_loc): Handle ADDR_SPACE_CONVERT_EXPR.
	* tree-pretty-print.c (dump_generic_node): Likewise.
	* gimple-pretty-print.c (dump_unary_rhs): Likewise.
	* tree-cfg.c (verify_gimple_assign_unary): Likewise.
	* tree-inline.c (estimate_operator_cost): Likewise.
	* tree-ssa.c (useless_type_conversion_p): Conversions between pointers
	to different address spaces are not useless.

Co-Authored-By: Michael Meissner <meissner@linux.vnet.ibm.com>
Co-Authored-By: Ulrich Weigand <uweigand@de.ibm.com>

From-SVN: r153572

	PR target/41246
	* target.h (struct gcc_target): Add asm_out.trampoline_template,
	calls.static_chain, calls.trampoline_init,
	calls.trampoline_adjust_address.
	* target-def.h (TARGET_ASM_TRAMPOLINE_TEMPLATE): New.
	(TARGET_STATIC_CHAIN, TARGET_TRAMPOLINE_INIT): New.
	(TARGET_TRAMPOLINE_ADJUST_ADDRESS): New.
	* builtins.c (expand_builtin_setjmp_receiver): Use
	targetm.calls.static_chain; only clobber registers.
	(expand_builtin_init_trampoline): Use targetm.calls.trampoline_init;
	set up memory attributes properly for the trampoline block.
	(expand_builtin_adjust_trampoline): Use
	targetm.calls.trampoline_adjust_address.
	* calls.c (prepare_call_address): Add fndecl argument.  Use
	targetm.calls.static_chain.
	* df-scan.c (df_need_static_chain_reg): Remove.
	(df_get_entry_block_def_set): Use targetm.calls.static_chain;
	consolodate static chain handling.
	* doc/tm.texi: Document new hooks.
	* emit-rtl.c (static_chain_rtx, static_chain_incoming_rtx): Remove.
	(init_emit_regs): Don't initialize them.
	* expr.h (prepare_call_address): Update decl.
	* final.c (profile_function): Use targetm.calls.static_chain.
	* function.c (expand_function_start): Likewise.
	* rtl.h (static_chain_rtx, static_chain_incoming_rtx): Remove.
	* stmt.c (expand_nl_goto_receiver): Use targetm.calls.static_chain;
	only clobber registers.
	* targhooks.c (default_static_chain): New.
	(default_asm_trampoline_template, default_trampoline_init): New.
	(default_trampoline_adjust_address): New.
	* targhooks.h: Declare them.
	* varasm.c (assemble_trampoline_template): Use
	targetm.asm_out.trampoline_template.  Make the memory block const
	and set its size.

From-SVN: r151983

2009-09-13  Richard Guenther  <rguenther@suse.de>
	Rafael Avila de Espindola  <espindola@google.com>

	* langhooks-def.h (LANG_HOOKS_EH_RUNTIME_TYPE): Define.
	(LANG_HOOKS_EH_PERSONALITY): Likewise.
	(LANG_HOOKS_INITIALIZER): Adjust.
	(lhd_pass_through_t): Declare.
	* langhooks.h (struct lang_hooks): Add eh_runtime_type and
	eh_personality.
	* langhooks.c (lhd_pass_through_t): New function.

        * dwarf2out.c (output_call_frame_info, dwarf2out_do_cfi_startproc,
	dwarf2out_begin_prologue): Use personality from current_function_decl.
        * expr.h (get_personality_function): Declare.
	* expr.c (get_personality_function): New function.
	(build_personality_function): Likewise.
        * libfuncs.h (libfunc_index): Remove LTI_eh_personality.
        (eh_personality_libfunc): Remove.
        * optabs.c (build_libfunc_function): New function split out from ...
	(init_one_libfunc): ... here.
        * tree.h (DECL_FUNCTION_PERSONALITY): New.
        (tree_function_decl): Add personality.
	(lhd_gcc_personality): Declare.
	(build_personality_function): Likewise.
	* tree.c (gcc_eh_personality_decl): New.
	(lhd_gcc_personality): New function.
	* except.h (lang_eh_runtime_type): Remove.
	(enum eh_personality_kind): New.
	(build_personality_function): Declare.
	(function_needs_eh_personality): Declare.
        * except.c (lang_eh_runtime_type): Remove.
	(function_needs_eh_personality): New function.
	(add_type_for_runtime): Call lang_hooks.type_for_runtime instead.
        (sjlj_emit_function_enter, output_function_exception_table):
        Use personality from current_function_decl.
	* tree-eh.c (lower_eh_constructs): Set DECL_FUNCTION_PERSONALITY.
	* tree-inline.c (tree_can_inline_p): Do not inline across different
	EH personalities.
	(expand_call_inline): Likewise.  Adjust the callers EH personality.
	(tree_function_versioning): Copy DECL_FUNCTION_PERSONALITY.
	* cgraph.c (cgraph_add_new_function): Set DECL_FUNCTION_PERSONALITY.
	* Makefile.in (cgraph.o): Add $(EXCEPT_H) dependency.
	(c-parser.o): Likewise

	* c-tree.h (c_eh_initialized_p): Remove.
	(c_maybe_initialize_eh): Likewise.
	* c-decl.c (finish_decl): Don't call c_maybe_initialize_eh.
	(finish_decl): Don't call c_maybe_initialize_eh.
	(c_eh_initialized_p): Remove.
	(c_maybe_initialize_eh): Likewise.
        * c-parser.c (c_parser_omp_construct): Likewise.
	(c_parse_file): Initialize exception handling.

	objc/
	* objc-act.c (objc_eh_runtime_type): Export.
	(objc_init_exceptions): Remove.  Move warning code ...
	(objc_begin_try_stmt): ... here
	(objc_build_throw_stmt): ... and here.
	(objc_eh_personality_decl): New.
	(objc_eh_personality): New function.
	* objc-act.h (objc_eh_runtime_type): Declare.
	(objc_eh_personality): Likewise.
	* objc-lang.c (LANG_HOOKS_EH_RUNTIME_TYPE): Define.
	(LANG_HOOKS_EH_PERSONALITY): Likewise.

	cp/
	* except.c (init_exception_processing): Do not set
	lang_eh_runtime_type.
	(choose_personality_routine): Do not set eh_personality_decl,
	set pragma_java_exceptions.
	* cp-lang.c (LANG_HOOKS_EH_RUNTIME_TYPE): Define.
	(LANG_HOOKS_EH_PERSONALITY): Likewise.
	(cp_eh_personality_decl): New.
	(cp_eh_personality): Likewise.
	* Make-lang.in (cp-lang.o): Add $(EXPR_H) and $(EXCEPT_H)
	dependencies.

	java/
	* decl.c (do_nothing): Remove.
	(java_init_decl_processing): Do not set lang_eh_runtime_type.
	* Make-lang.in (lang.o): Add $(EXCEPT_H) dependency.
	* lang.c (java_eh_personality): New.
	(java_eh_personality_decl): Likewise.
	(LANG_HOOKS_EH_PERSONALITY): Define.

	ada/
	* gcc-interface/misc.c (gnat_init_gcc_eh): Do not set
	lang_eh_runtime_type.
	(LANG_HOOKS_EH_PERSONALITY): Define.
	(gnat_eh_personality_decl): New.
	(gnat_eh_personality): Likewise.
	* Make-lang.in (misc.o): Add gt-ada-misc.h dependency.
	* config-lang.in (gtfiles): Add misc.c.

	fortran/
	* f95-lang.c (gfc_maybe_initialize_eh): Do not init
	eh_personality_libfunc.

Co-Authored-By: Rafael Avila de Espindola <espindola@google.com>

From-SVN: r151676

	* expr.h (emit_storent_insn, expand_expr_real_1,
	expand_expr_real_2): Declare.
	* expr.c (emit_storent_insn, expand_expr_real_1,
	expand_expr_real_2): Export.
	(store_expr): Setting and evaluating dont_return_target is
	useless.
	(expand_expr_real_1, <case GOTO_EXPR, RETURN_EXPR, SWITCH_EXPR,
	LABEL_EXPR and ASM_EXPR>): Move to gcc_unreachable.
	* except.c (expand_resx_expr): Rename to ...
	(expand_resx_stmt): ... this.  Rewrite to take gimple statement.
	* except.h (expand_resx_stmt): Declare.
	* stmt.c: Add include gimple.h
	(expand_asm_expr): Rename to ...
	(expand_asm_stmt): ... this. Rewrite to take gimple statement.
	(expand_case): Rewrite to take gimple statement.
	* tree.h (expand_asm_stmt): Declare.
	(expand_case): Change prototype.
	* Makefile.in (stmt.o): Depend on gimple.h.
	* builtins.c (expand_builtin_synchronize): Build gimple asm
	statement, not an ASM_EXPR.
	* cfgexpand.c (gimple_cond_pred_to_tree, set_expr_location_r,
	gimple_to_tree, release_stmt_tree): Remove.
	(expand_gimple_cond): Don't call gimple_cond_pred_to_tree or
	ggc_free, but hold comparison code and operands separately.
	Call jumpif_1 and jumpifnot_1 instead of jumpif and jumpifnot.
	(expand_call_stmt, expand_gimple_stmt_1,
	expand_gimple_stmt): New helpers.
	(expand_gimple_tailcall): Don't call gimple_to_tree, expand_expr_stmt,
	release_stmt_tree.  Call expand_gimple_stmt instead.
	(expand_gimple_basic_block): Ditto.

	* calls.c (emit_call_1): Don't look at EH regions here, make
	fntree parameter useless.
	(expand_call): New local rettype for TREE_TYPE(exp), use it
	throughout.  Remove local p, use addr instead.
	Don't look at EH regions here.

From-SVN: r151350