* rtl.def (NIL): Delete.
	* read-rtl.c (read_rtx): Handle (nil) like (define_constants).
	Tighten the syntax a little.

	* cfgloop.h, combine.c, cse.c, loop-iv.c, postreload.c, reload.c
	* config/alpha/alpha.c, config/alpha/alpha.h, config/arc/arc.h
	* config/arm/arm.h, config/frv/frv.h, config/i386/i386.c
	* config/i386/predicates.md, config/m32r/m32r.h
	* config/m68hc11/m68hc11.c, config/mcore/mcore.h, config/mips/mips.c
	* config/mmix/mmix.c, config/pa/pa.h, config/sh/sh.h
	* config/sparc/sparc.h, doc/tm.texi:
	Replace all occurrences of NIL with UNKNOWN.

From-SVN: r86193

	* dojump.c (do_jump <unordered_bcc>): Do not recursively call
	self with a TRUTH_ORIF_EXPR; generate the appropriate jump
	sequence inline.  Move drop_through_label code into this
	block, being the only place it is used.  Adjust comments.

From-SVN: r86192

Approved by Geoff Keating.

From-SVN: r86191

From-SVN: r86190

Hot/cold partitioning update patch.  The problems that this patch
attemptd to address/fix are:

- Fix places where adding in_unlikely_executed_text to the enum data
  type "in_section"  threw off switch case statements.
- Make it work correctly (by turning it off) for functions where user
  specifies "__attribute__ section"
- Make it work correctly (by turning it off) for linkonce sections
- Make it work correctly with -ffunction-sections flag
- Make it output correct cold section labels
- Undo some changes to original assembly code generation
- Turn off hot/cold partitioning in the presence of DWARF debugging (for
  the moment)
- Turn off hot/cold partitioning for architectures that do not support
  named sections
- Use variables rather than constants for cold section labels and names (to
  work correctly with -ffunction-sections, among other things)


2004-08-18  Caroline Tice  <ctice@apple.com>

        * Makefile.in (STAGEFEEDBACK_FLAGS_TO_PASS) Add
        "-freorder-blocks-and-partition" to the flags used in second
        stage of profiledbootstrap.
        * bb-reorder.c (push_to_next_round_p): Add new variable,
        next_round_is_last; set and use variable to make sure, when
        partitioning, that the last trace construction round consists
        of all (and only) cold basic blocks.
        (rotate_loop): Don't copy blocks that end in a section
        crossing jump.
        (copy_bb): Correctly initialize "partition" of duplicated bb.
        (add_unlikely_executed_notes): Add a comment.
        (find_rarely_executed_basic_blocks_and_crossing_edges): Modify
        to make sure, if function contains hot blocks, that the
        successors of ENTRY_BLOCK_PTR are hot; also, only look for
        crossing edges if the architecture supports named sections.
        (mark_bb_for_unlikely_executed_section): Modify to always
        insert the NOTE_INSN_UNLIKELY_EXECUTED_CODE immediately after
        the basic block note insn.
        (fix_crossing_unconditional_branches): Remove extra space.
        (fix_edges_for_rarely_executed_code): Modify to only do
        partitioning work if the architecture supports named sections.
        (reorder_basic_blocks): Modify to only add
        NOTE_INSN_UNLIKELY_EXECUTED_CODE notes if the architecture
        supports named sections.
        * c-common.c (handle_section_attribute): Initialize new global
        variable, user_defined_section_attribute, to true if user has
        specified one.
        * cfgcleanup.c (try_forward_edges): Modify to not attempt to
        forward edges that cross section boundaries.
        * cfglayout.c (fixup_reorder_chain): Modify to only fix up
        partitioning information if the architecture supports named
        sections.
        * cfgrtl.c (target.h): Add statement to include this.
        (rtl_split_block): Make sure newly created bb gets correct
        partition.
        (try_redirect_by_replacing_jump): Make sure redirection isn't
        attempting to cross section boundaries.
        (force_nonfallthru_and_redirect): Only do partition fix up if
        architecture supports named sections.
        (rtl_split_edge): Make sure newly created bb ends up in
        correct partition.
        (commit_one_edge_insertion): Remove code that incorrectly
        updated basic block partition; Make sure partition fix up only
        happens if architecture supports named sections and it's not
        already done.
        (rtl_verify_flow_info_1): Fix if-condition on test/error
        condition that fallthru edges are not allowed to cross section
        boundaries.
        * defaults.h (NORMAL_TEXT_SECTION_NAME): Remove this.
        * final.c (final_scan_insn): Remove redundant test from if-statement;
        change calls to text_section into calls to function_section; add code
        to only to partitioning fix up if architecture supports named
        sections.
        * ifcvt.c (find_if_case_1): Make sure newly created bb has correct
        partition.
        (if_convert): Add targetm.have_named_sections to test.
        * output.h (unlikely_section_label): Extern declaration for new global
        variable.
        (unlikely_text_section_name): Likewise.
        * opts.c (decode_options): If both partitioning and DWARF debugging
        are turned on, issue a warning that this doesn't work, and change
        partitiong to basic block reordering (without hot/cold partitions).
        * passes.c (rest_of_handle_final): Re-set new global variable,
        user_defined_section_attribute, to false.
        (rest_of_compilation): Change options for calling partitioning
        function: Don't call if the user defined the section attribute, and
        don't call if DECL_ONE_ONLY is true for the current function.
        * predict.c (choose_function_section): Return immediately if we
        are doing hot/cold partitioning (i.e. let the basic block partitioning
        determine where the function belongs).
        * reg-stack.c (emit_swap_insn): Add condition to step over
        NOTE_INSN_UNLIKELY_EXECUTED_CODE notes.
        * toplev.c (user_defined_section_attribute): New global variable.
        * toplev.h (user_defined_section_attribute): Extern declaration for new
        global variable.
        * varasm.c (unlikely_section_label): New global variable.
        (unlikely_text_section_name): New global variable.
        (unlikely_text_section): Add code to initialize unlikely_text_section_name
        if necessary; modify to use unlikely_text_section_name and
        unlikely_section_label; also to use named_section properly.
        (in_unlikely_text_section):  Modify to work correctly with named_section
        and to use unlikely_text_section_name.
        (named_section):  Add code to work properly with cold section.
        (function_section): Clean up if-statement.
        * config/darwin.c (darwin_asm_named_section): Return to original code,
        removing use of SECTION_FORMAT_STRING.
        * config/arm/pe.h (switch_to_section):  Add case for
        in_unlikely_executed_text to switch statement.
        * config/i386/cygming.h (switch_to_section): Likewise.
        * config/i386/darwin.h (NORMAL_TEXT_SECTION_NAME): Remove.
        (SECTION_FORMAT_STRING): Likewise.
        * config/mcore/mcore.h (switch_to_section): Likewise.
        * config/rs6000/darwin.h (NORMAL_TEXT_SECTION_NAME): Remove.

From-SVN: r86189

re PR libgcj/17079 ([PATCH] Log messages whose logging level is equal to the threshold discarded by java.util.logging.Handler)

2004-08-18  Bryce McKinlay  <mckinlay@redhat.com>

	PR libgcj/17079
	* java/util/logging/Handler.java (isLoggable): Accept record if its
	log level equals the threshold level. From Robin Green.

From-SVN: r86187

2004-08-18  David Daney  <ddaney@avtrex.com>

	* java/lang/natPosixProcess.cc (waitForSignal): Use sigsuspend
	instead of sigwait.

From-SVN: r86186

i386.h (FIXED_REGISTERS): Update encoding to be -ffixed-reg safe, by preserving the meanings of zero and one.


	* config/i386/i386.h (FIXED_REGISTERS): Update encoding to be
	-ffixed-reg safe, by preserving the meanings of zero and one.
	(CALL_USED_REGISTERS): Likewise.
	(CONDITIONAL_REGISTER_USAGE): Update to process new encodings.

From-SVN: r86185

From-SVN: r86182

	* config/sh/sh.c (split_branches): Check the result of
	next_active_insn.
	(sh_output_mi_thunk): Call init_flow if basic_block_info is null.
	Call rtl_register_cfg_hooks.

From-SVN: r86181

        * config/i386/i386.h (UNITS_PER_SIMD_WORD): Define.
        * config/rs6000/rs6000.h (UNITS_PER_SIMD_WORD): Define.

From-SVN: r86180

	* rtl.h (MEM_READONLY_P): Replace RTX_UNCHANGING_P.
	* alias.c (true_dependence): Update to match new semantics.
	(canon_true_dependence, write_dependence_p): Likewise.
	(anti_dependence, output_dependence): Update write_dependence_p args.
	(unchanging_anti_dependence): Remove.
	* calls.c (purge_mem_unchanging_flag): Remove.
	(fixup_tail_calls): Don't call it.
	(expand_call): Don't add unchanging memory to function usage.
	* expr.c (emit_block_move_via_libcall): Likewise.
	(clear_storage_via_libcall): Don't clobber RTX_UNCHANGING_P mems.
	(get_subtarget): Don't use RTX_UNCHANGING_P.
	(expand_assignment, store_constructor, expand_expr_real_1): Likewise.
	(do_tablejump): Set MEM_READONLY_P, not RTX_UNCHANGING_P.
	* combine.c (get_last_value_validate): Use MEM_READONLY_P.
	* cse.c (insert): Don't use RTX_UNCHANGING_P.
	(cse_insn, canon_hash): Use MEM_READONLY_P.
	* emit-rtl.c (set_mem_attributes_minus_bitpos): Use MEM_READONLY_P
	instead of RTX_UNCHANGING_P.
	* explow.c (maybe_set_unchanging): Remove.
	* expr.h (maybe_set_unchanging): Remove.
	* flow.c (insn_dead_p, mark_used_regs): Use anti_dependence.
	* function.c (assign_stack_temp_for_type): Don't use RTX_UNCHANGING_P.
	(assign_parm_setup_reg, expand_function_start): Likewise.
	* integrate.c (copy_rtx_and_substitute): Likewise.
	* ra-rewrite.c (emit_colors): Likewise.
	* regmove.c (copy_src_to_dest, regmove_optimize): Likewise.
	(fixup_match_1): Likewise.
	* reload1.c (reload, alter_reg): Likewise.
	* local-alloc.c (validate_equiv_mem): Check MEM_READONLY_P,
	not RTX_UNCHANGING_P.
	(equiv_init_varies_p): Likewise.
	* loop-invariant.c (check_maybe_invariant): Likewise.
	* resource.c (mark_referenced_resources, mark_set_resources): Likewise.
	* loop.c (note_addr_stored): Likewise.
	(prescan_loop): Likewise. Don't check function usage for clobbered
	unchanging memory.
	* rtlanal.c (rtx_unstable_p): Check MEM_READONLY_P,
        not RTX_UNCHANGING_P.
	(rtx_varies_p, modified_between_p, modified_in_p): Likewise.
	* varasm.c (force_const_mem): Likewise.
	* stmt.c (expand_decl): Don't set RTX_UNCHANGING_P.
	* web.c (entry_register): Likewise.
	* tree-gimple.h (get_base_address): Move decl ...
	* tree.h: ... here.
	* doc/rtl.texi (MEM_READONLY_P): Replace RTX_UNCHANGING_P.

	* config/alpha/alpha.c (alpha_set_memflags_1): Rewrite to be
	called via for_each_rtx.  Copy MEM_SCALAR_P, MEM_NOTRAP_P too.
	(alpha_set_memflags): Update to match.

	* config/darwin.c (machopic_indirect_data_reference): Set
	MEM_READONLY_P instead of RTX_UNCHANGING_P.
	(machopic_indirect_call_target): Likewise.
	(machopic_legitimize_pic_address): Likewise.
	* config/arm/arm.c (legitimize_pic_address, arm_gen_load_multiple,
	arm_gen_store_multiple, arm_gen_movmemqi): Likewise.
	* config/arm/arm.md (load_multiple, store_multiple): Likewise.
	* config/frv/frv.md (symGOT2reg): Likewise.
	* config/i386/i386.c (legitimize_pic_address,
	legitimize_tls_address, ix86_split_to_parts): Likewise.
	* config/ia64/ia64.c (ia64_expand_tls_address): Likewise.
	* config/ia64/ia64.md (load_fptr): Likewise.
	* config/m32r/m32r.c (m32r_legitimize_pic_address): Likewise.
	* config/m68k/m68k.c (legitimize_pic_address): Likewise.
	* config/mcore/mcore.c (block_move_sequence): Likewise.
	* config/mn10300/mn10300.md (symGOT2reg): Likewise.
	* config/pa/pa.c (legitimize_pic_address): Likewise.
	* config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Likewise.
	(rs6000_emit_move): Likewise.
	* config/s390/s390.c (legitimize_pic_address): Likewise.
	(legitimize_tls_address): Likewise.
	* config/s390/s390.md (casesi): Likewise.
	* config/sh/sh.c (prepare_move_operands, sh_reorg): Likewise.
	* config/sh/sh.md (symGOT2reg): Likewise.
	* config/sparc/sparc.c (legitimize_pic_address): Likewise.
	* config/v850/v850.md (casesi): Likewise.

	* config/ia64/ia64.c (gen_thread_pointer): Don't set RTX_UNCHANGING_P.
	* config/iq2000/iq2000.c (save_restore_insns): Likewise.
	* config/mips/mips.c (mips_restore_gp): Likewise.
	(mips_save_restore_reg, mips16_gp_pseudo_reg): Likewise.
	* config/sh/sh.c (sh_reorg): Likewise.

From-SVN: r86178

        * tree.h (struct tree_decl): Add gimple_formal_temp.
        (DECL_GIMPLE_FORMAL_TEMP_P): New.
        * gimplify.c (pop_gimplify_context): Clear it.
        (lookup_tmp_var): Set it, if is_formal.
        (gimplify_init_constructor): Use rhs_predicate_for for COMPLEX.
        Use is_gimple_val for VECTOR.  Simplify return value.
        (gimplify_save_expr): Use and set DECL_GIMPLE_FORMAL_TEMP_P.
        (gimplify_expr): Likewise.
        * tree-gimple.c (is_gimple_formal_tmp_rhs): Rename from
        is_gimple_tmp_rhs for clarity.  Update all callers.
        (is_gimple_reg_rhs): Simplify logic.
        (is_gimple_formal_tmp_var): Rename from is_gimple_tmp_var for
        clarity; use DECL_GIMPLE_FORMAL_TEMP_P.
        (is_gimple_formal_tmp_reg): Similarly.
        * tree-gimple.h: Update decls.
        * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Use
        DECL_IGNORED_P, not DECL_ARTIFICIAL.  Tidy formatting.
        * tree-ssa-live.c (var_union, type_var_init): Likewise.
java/
        * java-gimplify.c (java_gimplify_expr): Move '2' handling into
        default case.  Treat '<' similarly.  Update for
        is_gimple_formal_tmp_var name change.
testsuite/
        * gcc.dg/20040206-1.c: XFAIL.

From-SVN: r86176

2004-04-18  Paolo Bonzini  <bonzini@gnu.org>

	* config/c4x/c4x.c (legitimize_operands): Remove calls to
	preserve_subexpressions_p.

From-SVN: r86175

From-SVN: r86172

	PR c++/16246
	* pt.c (unify): Tidy ARRAY_TYPE handling.  Make sure that non-type
	arguments have the same type as the corresponding parameter.

	PR c++/16246
	* g++.dg/template/array7.C: New test.

From-SVN: r86169

        * varasm.c (MAX_OFILE_ALIGNMENT): Move ...
        * defaults.h (MAX_OFILE_ALIGNMENT): ... here.

From-SVN: r86168

[gcc/ChangeLog]
2004-08-18  Ziemowit Laski  <zlaski@apple.com>

        * gcc.c (default_compilers): Add info about ".mm", ".M" and ".mii"
        Objective-C++ extensions.
        * gengtype.c (get_file_basename): Match entire subdirectory name
        ('cp', 'objc', 'objcp') rather than just its suffix.
        (get_base_file_bitmap): Allow for files to belong to more than one
        language.
        (get_output_file_with_visibility): Treat objc/objc-act.h as a header
        used by more than one front-end.

From-SVN: r86167

2004-08-18  Victor Leikehman  <lei@il.ibm.com>

	PR fortran/13278
	* trans-io.c (transfer_namelist_element): New. Recursively handle
	derived-type variables.  Pass string lengths.
	(build_dt): Code moved to build_namelist, with some
	changes and additions.
	(gfc_build_io_library_fndecls): Declare the fifth
	argument in st_set_nml_var_char -- string_length.
libgfortran/
	* io/transfer.c (st_set_nml_var)
	* io/write.c (namelist_write): Allow var_name and var_name_len to be
	null. For strings, use string_length field instead of len.
	* io/io.h (struct namelist_type): New field string_length.
	(st_set_nml_var_char): New argument string_length.

From-SVN: r86166

	PR c++/16215
	* parser.c (cp_parser_name_lookup_error): If parser->object_scope
	is set use it for diagnostic purposes.
	(cp_parser_pseudo_destructor_name): Remove special-case error
	message.

From-SVN: r86165

From-SVN: r86163

* arm.md (addsi3, subsi3, andsi3, iorsi3, movsi, movhi): Rework to
avoid use of preserve_subexpressions_p.

From-SVN: r86159

re PR tree-optimization/17051 (ICE: internal compiler error: verify_ssa failed.for SSA_NAME: l_addr<D8610>_650)

        PR 17051
        * tree-sra.c (scalarize_use): Mark all v_defs for !is_output too.

From-SVN: r86158

2004-08-17  Paolo Carlini  <pcarlini@suse.de>

	* config/abi/alpha-linux-gnu/baseline_symbols.txt: Update to 3.4.0.

From-SVN: r86155

* doc/extend.texi: Document new xstormy16 attribute.

* config/stormy16/stormy16.c (xstormy16_splittable_below100_operand): New.
(xstormy16_splittable_below100_or_register): New.
(combine_bnp): New.
(xstormy16_reorg): New.
(TARGET_MACHINE_DEPENDENT_REORG): Define.


* config/stormy16/stormy16.md (movqi_internal): Make name public.
(movhi_internal): Likewise.
(cbhranchhi): Likewise.
(cbhranchhi_neg): Likewise.
(andhi3): Only allow splittable below100 operands.
(iorhi3): Likewise.
(peephole2): New and/zero_extend->and peephole.
(peephole2): New load/ior/save->set1 peephole.
(peephole2): New load/and/save->clr1 peephole.
(bclrx, bclrx2, bclr7, bclr15): New.
(bsetx, bsetx2, bset7, bset15): New.

* config/stormy16/stormy16.c (xstormy16_print_operand): Be more
liberal about acceptable 'B' masks.

* config/stormy16/stormy16-protos.h
(xstormy16_asm_output_aligned_common, xstormy16_below100_symbol,
xstormy16_below100_operand, xstormy16_below100_or_register,
xstormy16_onebit_set_operand, xstormy16_onebit_clr_operand): New.
(PREDICATE_CODES): Add new predicates.

* config/stormy16/stormy16.c
(xstormy16_asm_output_aligned_common, xstormy16_below100_symbol,
xstormy16_below100_operand, xstormy16_below100_or_register,
xstormy16_onebit_set_operand, xstormy16_onebit_clr_operand): New.
(xstormy16_expand_iorqi3, xstormy16_expand_andqi3): New.
(xstormy16_legitimate_address_p): Allow below100 symbols.
(xstormy16_extra_constraint_p): Add 'W' for below100 operands.
(xstormy16_expand_move): Leave below100 operands as-is.
(xstormy16_encode_section_info): Encode below100 symbols.
(xstormy16_strip_name_encoding): New.
(xstormy16_print_operand): Print 'b' as shift mask.
(xstormy16_attribute_table): Add below100 attributes.
(xstormy16_handle_below100_attribute): New.

* config/stormy16/stormy16.h (EXTRA_SECTIONS): add in_bss100.
(XSTORMY16_SECTION_FUNCTION): New.
(EXTRA_SECTION_FUNCTIONS): Define using the above.
(ASM_OUTPUT_ALIGNED_DECL_COMMON, ASM_OUTPUT_ALIGNED_DECL_LOCAL): New.
(ASM_OUTPUT_SYMBOL_REF): Handle encoded symbols.
(ASM_OUTPUT_LABELREF): Define.

* config/stormy16/stormy16.md (movqi_internal): Add below100 support.
(movhi_internal): Add below100 support.
(andhi3): Add below100 support.
(iorhi3): Add below100 support.
(iorqi3, iorqi3_internal, andqi3, andqi3_internal): New.

From-SVN: r86154

* configure.in: In noconfigdirs check, match GNU/k*BSD with GNU/Linux
(instead of FreeBSD).
* configure: Regenerate.

From-SVN: r86151

From-SVN: r86150

From-SVN: r86149

* config/mips/mips.md: Add canonical nmadd and nmsub patterns for both
normal and -ffast-math code.

From-SVN: r86148

* gcc.dg/mips-nmadd-1.c: New test.
* gcc.dg/mips-nmadd-2.c: New test.

From-SVN: r86147

* gcc.dg/mips-movcc-1.c: New test.
* gcc.dg/mips-movcc-2.c: New test.
* gcc.dg/mips-movcc-3.c: New test.

From-SVN: r86146

* config/mips/mips.c (gen_conditional_move): Use GET_MODE (op0) instead
of VOIDmode for comparison code mode.
* config/mips/mips.md: For conditional move patterns, use mode of
first compare operand for comparison mode, instead of VOIDmode.

From-SVN: r86145

	PR c++/15871
	* semantics.c (expand_or_defer_fn): Honor -fkeep-inline-functions.

	PR c++/15871
	* doc/invoke.texi (-fkeep-inline-functions): Update documentation.

	PR c++/15871
	* g++.dg/opt/inline8.C: New test.

From-SVN: r86144

2004-08-17  Paolo Carlini  <pcarlini@suse.de>

	* config/abi/ia64-linux-gnu/baseline_symbols.txt: Update to 3.4.0.

From-SVN: r86142

the compiler generates position-independent-code by default.  This allows
an object file to be used for a dylib or executable without any thought
on the developer's part, but generates less-efficient code.  Setting this
flag on gcc speeds compiles by 3-5%.
        * config/rs6000/x-darwin: Add -mdynamic-no-pic to gcc build flags.

From-SVN: r86141

	PR c++/16965
	* cp-tree.h (qualified_name_lookup_error): Add parameter.
	* name-lookup.c (do_class_using_decl): Restrict set of entities
	passed to cp_emit_debug_info_for_using more carefully.
	(lookup_qualified_name): Allow lookup_member to return sets of
	ambiguous entries.
	* parser.c (cp_parser_lookup_name): Add ambiguous_p parameter.
	(cp_parser_primary_expression): Handle ambiguous lookups.
	(cp_parser_template_name): Adjust use of cp_parser_lookup_name.
	(cp_parser_template_argument): Likewise.
	(cp_parser_elaborate_type_specifier): Likewise.
	(cp_parser_namespace_name): Likewise.
	(cp_parser_class_name): Likewise.
	(cp_parser_lookup_name_simple): Likewise.
	* pt.c (tsubst_qualified_id): Handle ambiguous results.
	(tsubst_expr): Likewise.
	* semantics.c (qualified_name_lookup_error): Add decl paramter.
	For ambiguous lookups, print candidates.

	PR c++/16965
	* g++.dg/parse/error17.C: New test.

From-SVN: r86137

2004-08-17  Andreas Tobler  <a.tobler@schweiz.ch>

	* config/rs6000/darwin.md (*call_nonlocal_darwin64): Add #else clause
	for non Darwin targets.
	(*call_value_nonlocal_darwin64): Likewise.

From-SVN: r86136

Reviewed by David Edehlson.

From-SVN: r86135

        Revert 2004-08-16  Stan Shebs  <shebs@apple.com>
        * config/rs6000/rs6000.md: Include darwin.md.
        (builtin_setjmp_receiver): Add DImode case.
        * config/rs6000/rs6000.c (rs6000_emit_move): Add DImode case to
        Darwin bits.

From-SVN: r86132

        * tree-vectorizer.c: New File: loop vectorization on SSAed GIMPLE trees.
        * tree-vectorizer.h: New File: Same.
        * Makefile.in (tree-vectorizer.c, tree-vectorizer.h): Add new files.
        * common.opt (ftree-vectorize): New flag to enable vectorization.
        * timevar.def (TV_TREE_VECTORIZATION): New dump file for vectorization
        pass.
        * tree-data-ref.h (init_data_ref): Additional argument.
        (array_base_name_differ_p): Moved to tree-data-ref.c.
        * tree-data-ref.c (array_base_name_differ_p): Revised.
        (initialize_data_dependence_relation): Call array_base_name_differ_p
        with an extra argument.
        (analyze_all_data_dependences): Same.
        (init_data_ref): Additional argument is_read to set DR_IS_READ.
        * tree-ssa-phiopt.c (empty_block_p): Expose for usage out of this file.
        * tree-flow.h (vectorize_loops, empty_block_p): Add declaration.
        * tree-optimize.c (pass_vectorize): Schedule the vectorization pass.
        * tree-pass.h (tree_opt_pass pass_vectorize): Declare the new
        vectorization pass.
        * tree-ssa-loop.c (tree_ssa_loop_init): Call scev_initialize.
        (tree_ssa_loop_done): Call scev_finalize.
        (tree_vectorize): Define the new vectorization pass.
        * defaults.h (UNITS_PER_SIMD_WORD): Allow targets to specify the size of
        the vector they support (until support for multiple vector sizes is
        added to the vectorizer).
        * config/i386/i386.h (UNITS_PER_SIMD_WORD): Define.
        * config/rs6000/rs6000.h (UNITS_PER_SIMD_WORD): Define.
        * invoke.texi (fdump-tree-vect, ftree-vectorize): Add
        documentation.

From-SVN: r86131