PR 70687 reports a case where combine.c mishandles integer modes
wider than unsigned HOST_WIDE_INT.  I don't have a testcase since
the PR is just pointing out the hole.

Also, I think a ZERO_EXTEND of a vector mode could in principle satisfy
the subreg condition but wouldn't be equivalent to an AND.  E.g.:

      (zero_extend:V4DI (subreg:V4SI (reg:V4DI R) 0))

Tested on x86_64-linux-gnu.

gcc/
	PR rtl-optimization/70687
	* combine.c (change_zero_ext): Check for scalar modes.  Use wide_int
	instead of unsigned HOST_WIDE_INT.

From-SVN: r235811

	PR rtl-optimization/44281
	* hard-reg-set.h (struct target_hard_regs): New field
	x_fixed_nonglobal_reg_set.
	(fixed_nonglobal_reg_set): New macro.
	* reginfo.c (init_reg_sets_1): Initialize it.
	* ira.c (setup_alloc_regs): Use fixed_nonglobal_reg_set instead
	of fixed_reg_set.
	* df-scan.c (df_insn_refs_collect): Asms may reference global regs.

testsuite/
	PR rtl-optimization/44281
	* gcc.target/i386/pr44281.c: New test.

From-SVN: r235809

	PR tree-optimization/56541
	* doc/invoke.texi (@item max-tree-if-conversion-phi-args): New item.
	* params.def (PARAM_MAX_TREE_IF_CONVERSION_PHI_ARGS): new param.
	* tree-if-conv.c (MAX_PHI_ARG_NUM): new macro.
	(any_complicated_phi): new static variable.
	(aggressive_if_conv): delete.
	(if_convertible_phi_p): support phis with more than two arguments.
	(if_convertible_bb_p): remvoe check on aggressive_if_conv and
	critical pred edges.
	(ifcvt_split_critical_edges): support phis with more than two
	arguments by checking new parameter.  only split critical edges
	if needed.
	(tree_if_conversion): handle simd pragma marked loop using new
	local variable aggressive_if_conv.  check any_complicated_phi.

	gcc/testsuite
	PR tree-optimization/56541
	* gcc.dg/tree-ssa/ifc-pr56541.c: new test.
	* gcc.dg/vect/pr56541.c: new test.

From-SVN: r235808

	* tree-ssa-loop-ivopts.c (get_computation_cost_at): Check depends_on
	before using it.

From-SVN: r235807

	* tree-ssa-loop-ivopts.c (get_computation_cost_at): Don't clobber
	cbase.

From-SVN: r235805

2016-05-03  Richard Biener  <rguenther@suse.de>

	c/
	* Make-lang.in (cc1-checksum.c): For stage-final re-use
	the checksum from the previous stage.

	cp/
	* Make-lang.in (cc1plus-checksum.c): For stage-final re-use
	the checksum from the previous stage.

From-SVN: r235804

gcc/
	* config/sh/sh.md (udivsi3, divsi3, mulsi3): Simplify.
	(mulhisi3, umulhisi3, (smulsi3_highpart, umulsi3_highpart): Convert to
	define_insn_and_split.
	(mulsi3_i): New define_insn_and_split.
	(mulsi3_call): Convert to define_insn.
	(mulsidi3, mulsidi3_compact, umulsidi3, umulsidi3_compact):
	Remove constraints.

From-SVN: r235803

From-SVN: r235802

From-SVN: r235800

[gcc]
2016-05-02  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* machmode.h (mode_complex): Add support to give the complex mode
	for a given mode.
	(GET_MODE_COMPLEX_MODE): Likewise.
	* stor-layout.c (layout_type): For COMPLEX_TYPE, use the mode
	stored by build_complex_type and gfc_build_complex_type instead of
	trying to figure out the appropriate mode based on the size. Raise
	an assertion error, if the type was not set.
	* genmodes.c (struct mode_data): Add field for the complex type of
	the given type.
	(blank_mode): Likewise.
	(make_complex_modes): Remember the complex mode created in the
	base type.
	(emit_mode_complex): Write out the mode_complex array to map a
	type mode to the complex version.
	(emit_insn_modes_c): Likewise.
	* tree.c (build_complex_type): Set the complex type to use before
	calling layout_type.
	* config/rs6000/rs6000.c (rs6000_hard_regno_nregs_internal): Add
	support for __float128 complex datatypes.
	(rs6000_hard_regno_mode_ok): Likewise.
	(rs6000_setup_reg_addr_masks): Likewise.
	(rs6000_complex_function_value): Likewise.
	* config/rs6000/rs6000.h (FLOAT128_IEEE_P): Likewise.
	__float128 and __ibm128 complex.
	(FLOAT128_IBM_P): Likewise.
	(ALTIVEC_ARG_MAX_RETURN): Likewise.
	* doc/extend.texi (Additional Floating Types): Document that
	-mfloat128 must be used to enable __float128.  Document complex
	__float128 and __ibm128 support.

[gcc/fortran]
2016-05-02  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* trans-types.c (gfc_build_complex_type):

[gcc/testsuite]
2016-05-02  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* gcc.target/powerpc/float128-complex-1.c: New tests for complex
	__float128.
	* gcc.target/powerpc/float128-complex-2.c: Likewise.

From-SVN: r235794

	PR target/49244
	* gimple.c (gimple_builtin_call_types_compatible_p): Allow
	char/short arguments promoted to int because of promote_prototypes.

From-SVN: r235792

Backport r265322 from llvm upstream

Since x86 psABIs require the function incoming stack must align at 16
bytes, child process stack passed to clone should be aligned at 16
bytes.

	PR testsuite/70520
	* c-c++-common/asan/clone-test-1.c (main): Align child process
	stack to 16 bytes.

From-SVN: r235790

When we emit a hint about a misspelled member name, it will slightly
aid readability if we use a fixit-hint to show the proposed
name in context within the source code (and in the future this
might support some kind of auto-apply in an IDE).

This patch adds such a hint to the C++ frontend, taking us from:

test.cc:10:15: error: 'struct foo' has no member named 'colour'; did you mean 'color'?
   return ptr->colour;
               ^~~~~~

to:

test.cc:10:15: error: 'struct foo' has no member named 'colour'; did you mean 'color'?
   return ptr->colour;
               ^~~~~~
               color

gcc/cp/ChangeLog:
	PR c++/62314
	* typeck.c (finish_class_member_access_expr): When
	giving a hint about a possibly-misspelled member name,
	add a fix-it replacement hint.

gcc/testsuite/ChangeLog:
	PR c++/62314
	* g++.dg/spellcheck-fields-2.C: New test case.

From-SVN: r235785

From-SVN: r235783

	* config/i386/predicates.md (register_ssemem_operand): New predicate.
	* config/i386/i386.md (*cmpi<FPCMP:unord><MODEF:mode>): Merge from
	*cmpi<FPCMP:unord><MODEF:mode>_mixed and
	*cmpi<FPCMP:unord><X87MODEF:mode>_i387.  Disable unsupported
	alternatives using "enabled" attribute.  Use register_ssemem_operand
	as operand 1 predicate.
	(*cmpi<unord>xf_i387): Split XFmode pattern from
	*cmpi<FPCMP:unord><X87MODEF:mode>_i387.
	(*absneg<mode>2): Merge from *absneg<mode>2_mixed and
	*absneg<mode>2_i387.  Disable unsupported alternatives using
	"enabled" attribute.

From-SVN: r235782

	gcc/c-family/
	* c-common.h (enum c_omp_region_type): Define.

	gcc/c/
	* c-parser.c (c_parser_oacc_all_clauses): Update call to
	c_finish_omp_clauses.
	(c_parser_omp_all_clauses): Likewise.
	(c_parser_oacc_cache): Likewise.
	(c_parser_oacc_loop): Likewise.
	(omp_split_clauses): Likewise.
	(c_parser_omp_declare_target): Likewise.
	(c_parser_cilk_all_clauses): Likewise.
	(c_parser_cilk_for): Likewise.
	* c-typeck.c (c_finish_omp_clauses): Replace bool arguments
	is_omp, declare_simd, and is_cilk with enum c_omp_region_type ort.

	gcc/cp/
	* cp-tree.h (finish_omp_clauses): Update prototype.
	* parser.c (cp_parser_oacc_all_clauses): Update call to
	finish_omp_clauses.
	(cp_parser_omp_all_clauses): Likewise.
	(cp_parser_omp_for_loop): Likewise.
	(cp_omp_split_clauses): Likewise.
	(cp_parser_oacc_cache): Likewise.
	(cp_parser_oacc_loop): Likewise.
	(cp_parser_omp_declare_target):
	(cp_parser_cilk_simd_all_clauses): Likewise.
	(cp_parser_cilk_for): Likewise.
	* pt.c (tsubst_omp_clauses): Replace allow_fields and declare_simd
	arguments with enum c_omp_region_type ort.
	(tsubst_omp_clauses): Update calls to finish_omp_clauses.
	(tsubst_omp_attribute): Update calls to tsubst_omp_clauses.
	(tsubst_omp_for_iterator): Update calls to finish_omp_clauses.
	(tsubst_expr): Update calls to tsubst_omp_clauses.
	* semantics.c (finish_omp_clauses): Replace bool arguments
	allow_fields, declare_simd, and is_cilk with bitmask ort.
	(finish_omp_for): Update call to finish_omp_clauses.

From-SVN: r235780

gcc/cp/ChangeLog:
	PR c++/62314
	* parser.c (cp_parser_class_head): Capture the start location;
	use it to emit a fix-it insertion hint when complaining
	about missing "template <> " in explicit specializations.

gcc/testsuite/ChangeLog:
	PR c++/62314
	* g++.dg/pr62314.C: New test case.

From-SVN: r235777

	* omp-low.c (lower_oacc_head_tail): Assert there is at least one
	marker.
	(oacc_loop_process): Check mask for loop termination.

From-SVN: r235775

	* Makefile.am (toolexeclib_LTLIBRARIES): Only set if
	ENABLE_VTABLE_VERIFY.
	Simplify.
	* Makefile.in: Regenerate.

From-SVN: r235772

	* ipa-inline-analsysis.c (evaluate_conditions_for_known_args): Revert
	accidental change.

From-SVN: r235771

From-SVN: r235770

From-SVN: r235768

	PR c++/70498
	* cp-demangle.c: Parse numbers as integer instead of long to avoid
	overflow after sanity checks. Include <limits.h> if available.
	(INT_MAX): Define if necessary.
	(d_make_template_param): Takes integer argument instead of long.
	(d_make_function_param): Likewise.
	(d_append_num): Likewise.
	(d_identifier): Likewise.
	(d_number): Parse as and return integer.
	(d_compact_number): Handle overflow.
	(d_source_name): Change variable type to integer for parsed number.
	(d_java_resource): Likewise.
	(d_special_name): Likewise.
	(d_discriminator): Likewise.
	(d_unnamed_type): Likewise.
	* testsuite/demangle-expected: Add regression test cases.

From-SVN: r235767

	* ipa-inline-analysis.c (reset_inline_summary): Clear fp_expressions
	(dump_inline_summary): Dump it.
	(fp_expression_p): New predicate.
	(estimate_function_body_sizes): Use it.
	(inline_merge_summary): Merge fp_expressions.
	(inline_read_section): Read fp_expressions.
	(inline_write_summary): Write fp_expressions.
	* ipa-inline.c (can_inline_edge_p): Permit inlining across fp math
	codegen boundary if either caller or callee is !fp_expressions.
	* ipa-inline.h (inline_summary): Add fp_expressions.
	* ipa-inline-transform.c (inline_call): When inlining !fp_expressions
	to fp_expressions be sure the fp generation flags are updated.

	* gcc.dg/ipa/inline-8.c: New testcase.

From-SVN: r235766

	PR rtl-optimization/70467
	* cse.c (cse_insn): Handle no-op MEM moves after folding.

	* gcc.target/i386/pr70467-1.c: New test.

From-SVN: r235765

	PR rtl-optimization/70467
	* ipa-pure-const.c (check_call): Handle internal calls even in
	ipa mode like in local mode.

From-SVN: r235764

2016-05-02  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * configure.ac (mpfr): Remove pre-3.1.0 mpfr compatibility code.
        * configure: Regenerated.
        * Makefile.def (gmp): Explicitly disable assembler.
        (mpfr): Adjust lib_path.
        (mpc): Likewise.
        * Makefile.in: Regenerated.

gcc/
2016-05-02  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * doc/install.texi: Document supported in-tree gmp/mpfr/mpc versions.

contrib/
2016-05-02  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * download_prerequisites: Adjust gmp/mpfr/mpc versions.

From-SVN: r235763

2016-05-02  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * gcc.dg/spec-options.c: Run the test on all targets.
        * gcc.dg/foo.specs: Use cpp_unique_options.

From-SVN: r235762

2016-05-02  Marc Glisse  <marc.glisse@inria.fr>

gcc/
	* match.pd (X u< X, X u> X): New transformations.

gcc/testsuite/
	* gcc.dg/tree-ssa/unord.c: New testcase.

From-SVN: r235761

2016-05-02  Marc Glisse  <marc.glisse@inria.fr>

gcc/
	* flag-types.h (enum warn_strict_overflow_code): Move ...
	* coretypes.h: ... here.
	* fold-const.h (fold_overflow_warning): Declare.
	* fold-const.c (fold_overflow_warning): Make non-static.
	(fold_comparison): Move the transformation of X +- C1 CMP C2
	into X CMP C2 -+ C1 ...
	* match.pd: ... here.
	* gimple-fold.c (fold_stmt_1): Protect with
	fold_defer_overflow_warnings.

gcc/testsuite/
	* gcc.dg/tree-ssa/20040305-1.c: Adjust.

From-SVN: r235760

	gcc/
	* omp-low.c (struct oacc_loop): Add 'inner' field.
	(new_oacc_loop_raw): Initialize it to zero.
	(oacc_loop_fixed_partitions): Initialize it.
	(oacc_loop_auto_partitions): Partition outermost loop to outermost
	available partitioning.

	gcc/testsuite/
	* c-c++-common/goacc/loop-auto-1.c: Adjust expected warnings.

	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/loop-auto-1.c: Adjust
	expected partitioning.

From-SVN: r235756

	* gcc-interface/Makefile.in (install-gcc-specs): Use foreach.
	Honor DESTDIR.

From-SVN: r235754

	PR c/70851
	* c-decl.c (grokdeclarator): Diagnose when array's size has an
	incomplete type.

	* gcc.dg/enum-incomplete-3.c: New test.

From-SVN: r235750

gcc/
2016-05-02  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.md (mulsidi3): Change operand 0 predicate to
	register_operand.
	(umulsidi3): Likewise.
	(indirect_jump): Fix jump instruction assembly patterns.

From-SVN: r235749

	gcc/
	PR target/70860
	* config/nvptx/nvptx.c (nvptx_libcall_value): Handle NULL cfun.
	(nvptx_function_value): Assert non-NULL cfun.

From-SVN: r235748

From-SVN: r235747

2016-05-02  Tristan Gingold  <gingold@adacore.com>

	* fname.adb (Is_Predefined_File_Name): Also consider non-krunched
	i-* names.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

	* sem_util.adb (Aggregate_Constraint_Checks): Separate
	accessibility checks and non-null checks for aggregate components,
	to prevent spurious accessibility errors.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch3.adb (OK_For_Limited_Init): A type conversion is not
	always legal in the in-place initialization of a limited entity
	(e.g. an allocator).
	* sem_res.adb (Resolve_Allocator): Improve error message with RM
	reference  when allocator expression is illegal.

From-SVN: r235746

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch6.adb (Expand_Call): When inlining a call to a function
	declared in a package instance, locate the instance node of the
	package after the actual package declaration. skipping over
	pragmas that may have been introduced when the generic unit
	carries aspects that are transformed into pragmas.

2016-05-02  Bob Duff  <duff@adacore.com>

	* s-memory.adb (Alloc, Realloc): Move checks
	for Size = 0 or size_t'Last into the Result = System.Null_Address
	path for efficiency. Improve comments (based on actual C language
	requirements for malloc).
	* exp_util.adb (Build_Allocate_Deallocate_Proc): Optimize the
	case where we are using the default Global_Pool_Object, and we
	don't need the heavy finalization machinery.

From-SVN: r235745

From-SVN: r235744

2016-05-02  Gary Dismukes  <dismukes@adacore.com>

	* exp_util.ads, sem_ch12.adb: Minor reformatting.

From-SVN: r235743