2010-04-23  Pedro Alves  <pedro@codesourcery.com>

include/
* filenames.h (IS_DIR_SEPARATOR_1): Rename from IS_DIR_SEPARATOR,
always define it independently of host, add `dos_based' parameter,
and handle it.
(HAS_DRIVE_SPEC_1): Rename from HAS_DRIVE_SPEC, always define it
independently of host, add `dos_based' parameter, and handle it.
(IS_ABSOLUTE_PATH_1): Rename from IS_ABSOLUTE_PATH, always define
it independently of host, add `dos_based' parameter, and handle
it.
(IS_DOS_DIR_SEPARATOR, IS_DOS_ABSOLUTE_PATH)
(IS_UNIX_DIR_SEPARATOR, IS_UNIX_ABSOLUTE_PATH)
(HAS_DOS_DRIVE_SPEC): New.
(HAS_DRIVE_SPEC): Reimplement on top of HAS_DRIVE_SPEC_1.
(IS_DIR_SEPARATOR): Reimplement on top of IS_DIR_SEPARATOR_1.
(IS_ABSOLUTE_PATH): Reimplement on top of IS_ABSOLUTE_PATH_1.
* libiberty.h (dos_lbasename, unix_lbasename): Declare.

libiberty/
* lbasename.c (lbasename): Split into ...
(unix_lbasename, dos_basename): ... these.
(lbasename): ... and reimplement on top of them.
* Makefile.in (lbasename.o): Add dependency on
$(INCDIR)/filenames.h.

From-SVN: r158681

From-SVN: r158680

2010-04-23  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	* toplev.c (general_init): Set default for
	fdiagnostics-show-option.
	* opts.c (common_handle_option): Allow disabling it.
	* common.opt (fdiagnostics-show-option): Add Var. Enabled by
	default.
testsuite/	
	* gcc.dg/Wconversion-integer.c: Update.

From-SVN: r158676

	* expr.c (expand_expr_real_1) <VIEW_CONVERT_EXPR>: Only use conversion
	between modes if both types are integral.

From-SVN: r158675

2010-04-23  Richard Guenther  <rguenther@suse.de>

	PR lto/41550
	* lto-plugin.c (parse_table_entry): Use xstrdup and xrealloc.
	(translate): Likewise.
	(all_symbols_read_handler): Likewise.
	(claim_file_handler): Likewise.
	(process_option): Likewise.
	(add_output_files): Likewise.  Remove filename length limit.

From-SVN: r158673

re PR tree-optimization/43572 (FAIL: gfortran.dg/PR19872.f execution test; formatted read - wrong numbers)

2010-04-23  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/43572
	* tree-tailcall.c (find_tail_calls): Allow PARM_DECL uses.

From-SVN: r158671

2010-04-23  Richard Guenther  <rguenther@suse.de>

	PR lto/41734
	* gcc.dg/lto/20100423-2_0.c: New testcase.
	* gcc.dg/lto/20100423-2_0.c: Likewise.

From-SVN: r158670

2010-04-23  Richard Guenther  <rguenther@suse.de>

	PR lto/43455
	* tree-inline.c (tree_can_inline_p): Also check compatibility
	of return types.

	* gcc.dg/lto/20100423-1_0.c: New testcase.
	* gcc.dg/lto/20100423-1_1.c: Likewise.

From-SVN: r158669

2010-04-23  Martin Jambor  <mjambor@suse.cz>

	PR tree-optimization/43846
	* tree-sra.c (struct access): New flag grp_assignment_read.
	(build_accesses_from_assign): Set grp_assignment_read.
	(sort_and_splice_var_accesses): Propagate grp_assignment_read.
	(enum mark_read_status): New type.
	(analyze_access_subtree): Propagate grp_assignment_read, create
	accesses also if both direct_read and root->grp_assignment_read.

	* testsuite/gcc.dg/tree-ssa/sra-10.c: New test.

From-SVN: r158668

2010-04-23  Martin Jambor  <mjambor@suse.cz>

	PR middle-end/43835
	* tree-sra.c (ipa_sra_preliminary_function_checks): Check that the
	function does not have type attributes.

	* testsuite/gcc.c-torture/execute/pr43835.c: New test.

From-SVN: r158667

2010-04-23  Richard Guenther  <rguenther@suse.de>

	PR lto/42653
	* tree.c (free_lang_data_in_decl): Do not reset DECL_CONTEXT
	of FUNCTION_DECLs.

	* g++.dg/lto/20100423-1_0.C: New testcase.

From-SVN: r158666

2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>

	* sese.h (create_if_region_on_edge): Remove.

	* sese.c (create_if_region_on_edge): Make static.

	* tree-inline.c: Do not include ggc.h.

	* expr.c: Do not include ggc.h.

	* Makefile.in (tree-inline.o, expr.o): Remove $(GGC_H) from
	dependencies.

From-SVN: r158661

From-SVN: r158660

	PR target/43744
	* config/sh/sh.c (find_barrier): Don't emit a constant pool
	in the middle of insns for casesi_worker_2.

From-SVN: r158655

	* gcc.dg/graphite/interchange-0.c: Fix dg-final directive.

From-SVN: r158653

From-SVN: r158652

From-SVN: r158651

	PR tree-optimization/43842
	* tree-vect-loop.c (vect_create_epilog_for_reduction): Handle 
	loop unrolling in update of exit phis. Fix comment.
	* tree-vect-slp.c (vect_analyze_slp): Check that there are at
	least two reduction statements in the loop before starting SLP 
	analysis.

From-SVN: r158650

	* gcc.target/i386/wmul-1.c: Add dg-require-effective-target ilp32.
	* gcc.target/i386/wmul-2.c: Likewise.

From-SVN: r158649

        * gcc.dg/torture/builtin-cproj-3.c: Rename and move ...
        * gcc.dg/cproj-fails-with-broken-glibc.c: ... to here.

From-SVN: r158647

From-SVN: r158646

2010-04-22  Alexander Monakov  <amonakov@ispras.ru>

	* tree-ssa-reassoc.c (eliminate_plus_minus_pair): Handle BIT_NOT_EXPR
	to simplify a + ~a.

	* gfortran.dg/reassoc_6.f: New testcase.

From-SVN: r158645

2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>

	* tree-parloops.c (loop_parallel_p): New argument
	parloop_obstack.  Pass it down.
	(parallelize_loops): New variable parloop_obstack.  Initialize it,
	pass it down, free it.

	* tree-loop-linear.c (linear_transform_loops): Pass down
	lambda_obstack.

	* tree-data-ref.h (lambda_compute_access_matrices): New argument
	of type struct obstack *.

	* tree-data-ref.c (analyze_subscript_affine_affine): New variable
	scratch_obstack.  Initialize it, pass down, free it.

	* lambda.h (lambda_loop_new): Remove.
	(lambda_matrix_new, lambda_matrix_inverse)
	(lambda_trans_matrix_new, lambda_trans_matrix_inverse): New
	argument of type struct obstack *.

	* lambda-trans.c (lambda_trans_matrix_new): New argument
	lambda_obstack.  Pass it down, use obstack allocation for ret.
	(lambda_trans_matrix_inverse): New argument lambda_obstack.  Pass
	it down.

	* lambda-mat.c (lambda_matrix_get_column)
	(lambda_matrix_project_to_null): Remove.
	(lambda_matrix_new): New argument lambda_obstack.  Use obstack
	allocation for mat.
	(lambda_matrix_inverse_hard, lambda_matrix_inverse): New argument
	lambda_obstack.

	* lambda-code.c (lambda_loop_new): New function.
	(lambda_lattice_new, compute_nest_using_fourier_motzkin)
	(lambda_compute_auxillary_space, lambda_compute_target_space)
	(lambda_loopnest_transform, gcc_loop_to_lambda_loop)
	(lambda_loopnest_to_gcc_loopnest): Pass down lambda_obstack.
	(build_access_matrix): New argument lambda_obstack.  Use obstack
	allocation for am.
	(lambda_compute_step_signs, lambda_compute_access_matrices): New
	argument lambda_obstack.  Pass it down.

From-SVN: r158644

	* optabs.h (expand_widening_mult): Declare.

From-SVN: r158643

	PR middle-end/29274
	* gcc.target/arm/wmul-1.c: New test.
	* gcc.target/arm/wmul-2.c: New test.

From-SVN: r158642

2010-04-22  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/43845
	* tree-ssa-pre.c (create_component_ref_by_pieces_1): Properly
	lookup the CALL_EXPR function and arguments.

	* gcc.c-torture/compile/pr43845.c: New testcase.

From-SVN: r158641

        (xstormy16_asm_output_aligned_common): Handle a NULL decl
        parameter.
        * config/stormy16/stormy16.h: Tidy up formatting.
        (DONT_USE_BUILTIN_SETJMP): Remove definition.
        * config/stormy16/stormy16.c (cbranchsi4): Delete pattern.
        (ineqbranchsi): Delete pattern.
        * config/stormy16/stormy16-lib2-ucmpsi2.c: New file.
        * config/stormy16/stormy16-lib2.c (__ucmpsi2): New function.
        * config/stormy16/t-stormy16 (LIB2FUNCS_EXTRA): Add
        stormy16-lib2-ucmpsi2.c.

From-SVN: r158640

ifcvt.c (dead_or_predicable): Use df_simulate_find_defs and df_simulate_find_noclobber_defs as appropriate.

	* ifcvt.c (dead_or_predicable): Use df_simulate_find_defs and
	df_simulate_find_noclobber_defs as appropriate.  Keep track of an
	extra set merge_set_noclobber, and use it to relax the final test
	slightly.
	* df.h (df_simulate_find_noclobber_defs): Declare.
	* df-problems.c (df_simulate_find_defs): Don't ignore partial or
	conditional defs.
	(df_simulate_find_noclobber_defs): New function.

From-SVN: r158639

2010-04-22  Johannes Singler  <singler@kit.edu>

        * include/parallel/partition.h (__parallel_partition):
        Improve scalability by:
        -introducing new variables __leftold, __rightold, __dist, thus
        -getting rid of omp lock by using atomic operations
        -getting rid of two omp barriers

From-SVN: r158636

	* config/i386/i386.md: Use {} around multi-line preparation statements.

From-SVN: r158635

	* c-tree.h (push_init_level, pop_init_level, set_init_index)
	(process_init_element): New argument of type struct obstack *.

	* c-typeck.c (push_init_level, pop_init_level, set_designator)
	(set_init_index, set_init_label, set_nonincremental_init)
	(set_nonincremental_init_from_string, find_init_member)
	(output_init_element, output_pending_init_elements)
	(process_init_element): New argument braced_init_obstack.  Pass it
	down.
	(push_range_stack, add_pending_init): New argument
	braced_init_obstack.  Use obstack allocation.

	* c-parser.c (c_parser_initelt, c_parser_initval): New argument
	braced_init_obstack.  Pass it down.
	(c_parser_braced_init): New variables ret, braced_init_obstack.
	Initialize obstack, pass it down and finally free it.

From-SVN: r158634

gcc/
	PR middle-end/29274
	* optabs.h (expand_widening_mult): Declare.
	* tree-pass.h (pass_optimize_widening_mul): Declare.
	* tree-ssa-math-opts.c (execute_optimize_widening_mul,
	gate_optimize_widening_mul): New static functions.
	(pass_optimize_widening_mul): New.
	* expr.c (expand_expr_real_2) <case WIDEN_MULT_EXPR>: New
	case.
	<case MULT_EXPR>: Remove support for widening multiplies.
	* tree.def (WIDEN_MULT_EXPR): Tweak comment.
	* cfgexpand.c (expand_debug_expr) <case WIDEN_MULT_EXPR>: Use
	simplify_gen_unary rather than directly building extensions.
	* tree-cfg.c (verify_gimple_assign_binary): Add tests for
	WIDEN_MULT_EXPR.
	* expmed.c (expand_widening_mult): New function.
	* passes.c (init_optimization_passes): Add pass_optimize_widening_mul.

gcc/testsuite/
	PR middle-end/29274
	* gcc.target/i386/wmul-1.c: New test.
	* gcc.target/i386/wmul-2.c: New test.
	* gcc.target/bfin/wmul-1.c: New test.
	* gcc.target/bfin/wmul-2.c: New test.

From-SVN: r158633

2010-04-22  Richard Guenther  <rguenther@suse.de>

	PR fortran/43829
	* resolve.c (gfc_resolve_index): Wrap around ...
	(gfc_resolve_index_1): ... this.  Add parameter to allow
	any integer kind index type.
	(resolve_array_ref): Allow any integer kind for the start
	index of an array ref.

	* gfortran.dg/vector_subscript_6.f90: New testcase.
	* gfortran.dg/assign_10.f90: Adjust.

From-SVN: r158632

2010-04-22  Basile Starynkevitch  <basile@starynkevitch.net>

	* gcc_update: Sets the locale to C.

From-SVN: r158629

From-SVN: r158628

2010-04-22  Jonathan Wakely  <jwakely.gcc@gmail.com>

	* doc/xml/faq.xml: Link to manual.
	* doc/xml/manual/using.xml: Expand dynamic libraries section.
	* doc/xml/manual/strings.xml: Mention shrink_to_fit() member.
	* doc/xml/manual/prerequisites.xml: Link to doxygen requirements.
	* doc/xml/manual/appendix_contributing.xml: Update Bash version.
	* doc/html/*: Regenerate.

From-SVN: r158624

	* timevar.def (TV_WHOPR_WPA_FIXUP): Remove.
	* lto-section-in.c (lto_section_name): Remove wpa_fixup.
	* lto-wpa-fixup.c: Remove.
	* Makefile.in (lto-wpa-fixup.o): Remove.
	* passes.c (init_optimization_passes): Remove pass_ipa_lto_wpa_fixup.
	(execute_all_ipa_transforms): Set cgraph_state to CGRAPH_STATE_IPA_SSA.
	* lto-streamer.c (lto_get_section_name): Remove wpa_fixup section.
	
	* lto.c (lto_fixup_tree): Do not call wpa fixup.
	(materialize_cgraph): Likewise.

From-SVN: r158622

	PR fortran/43836
	* f95-lang.c (gfc_define_builtin): Set TREE_NOTHROW on
	the decl.

	* gfortran.dg/gomp/pr43836.f90: New test.

From-SVN: r158619

	* tree-pass.h (ipa_opt_pass_d): Rename function_read_summary;
	add write_optimization_summary, read_optimization_summary.
	(ipa_write_summaries_of_cgraph_node_set): Remove.
	(ipa_write_optimization_summaries): Declare.
	(ipa_read_optimization_summaries): Declare.
	* ipa-cp.c (pass_ipa_cp): Update.
	* ipa-reference.c (pass_ipa_reference): Update.
	* ipa-pure-const.c (pass_ipa_pure_const): Update.
	* lto-streamer-out.c (pass_ipa_lto_gimple, pass_ipa_lto_finish):
	Update.
	* ipa-inline.c (pass_ipa_inline): Update.
	* ipa.c (pass_ipa_whole_program): Update.
	* lto-wpa-fixup.c (pass_ipa_lto_wpa_fixup): Update.
	* passes.c (ipa_write_summaries_1): Do not test wpa.
	(ipa_write_optimization_summaries_1): New.
	(ipa_write_optimization_summaries): New.
	(ipa_read_summaries): Do not test ltrans.
	(ipa_read_optimization_summaries_1): New.
	(ipa_read_optimization_summaries): New.

	* lto.c (lto_wpa_write_files): Update.
	(read_cgraph_and_symbols): Be more verbose.
	(materialize_cgraph): Likewise.
	(do_whole_program_analysis): Likewise.

From-SVN: r158616

	* lto-cgraph.c (lto_output_node): Do not output comdat groups
	for boundary nodes.
	(output_cgraph): Do not arrange comdat groups for boundary nodes.

From-SVN: r158615