This optimization is enabled with  microblaze target flag mxl-prefetch.

From-SVN: r232683

From-SVN: r232682

gcc/

2016-01-21  Yuri Rumyantsev  <ysrumyan@gmail.com>

	PR rtl-optimization/68920
	* ifcvt.c (cond_move_process_if_block): Limit number of conditional
	moves.

From-SVN: r232680

2016-01-21  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/68990
	* lra-coalesce.c (lra_coalesce): Invalidate value for the result
	pseudo instead of inheritance ones.

2016-01-21  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/68990
	* gcc.target/i386/pr68990: New.

From-SVN: r232679

From-SVN: r232675

	PR target/69129
	PR target/69012
	* config/mips/mips.c (mips_compute_frame_info): Initialise
	args_size and hard_frame_pointer_offset fields of the frame
	structure before calling mips_global_pointer.

	PR target/69129
	* gcc.target/mips/pr69129.c: New.

From-SVN: r232674

* configure.ac (gcc_cv_as_dwloc): Test support for debug frame section
label reference.
* configure: Regenerate.

From-SVN: r232673

	PR libstdc++/69406
	* include/bits/cpp_type_traits.h: Ensure C++ language linkage.
	* include/ext/type_traits.h: Likewise.
	* testsuite/17_intro/headers/c++2011/linkage.cc: Check autoconf macros
	for presence of C headers.
	* testsuite/ext/type_traits/add_unsigned_floating_neg.cc: Adjust
	dg-error line number.
	* testsuite/ext/type_traits/add_unsigned_integer_neg.cc: Likewise.
	* testsuite/ext/type_traits/remove_unsigned_floating_neg.cc: Likewise.
	* testsuite/ext/type_traits/remove_unsigned_integer_neg.cc: Likewise.

From-SVN: r232672

2016-01-21  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/58046
	* g++.dg/cpp0x/pr58046.C: New.

From-SVN: r232671

2016-01-21  Richard Biener  <rguenther@suse.de>

	* graphite-optimize-isl.c (get_schedule_map): Fix typo.

From-SVN: r232670

It seems at some point the .size hook was hijacked to emit some
machine-specific directives, and the actual .size directive was
forgotten.  This caused problems for split-stack support, since
linker couldn't scan the function body for non-split-stack calls.

gcc/ChangeLog:

	* config/s390/s390.c (s390_asm_declare_function_size): Add code
	to actually emit the .size directive.

From-SVN: r232669

re PR target/69187 (ICE: Aborted when native compiling neon code with __builtin_neon_vmlals_lanev4hi)

	PR target/69187
	PR target/65624
	* config/arm/arm-builtins.c (arm_expand_neon_builtin): Increase
	args array size by one to avoid buffer overflow.

	* gcc.target/arm/pr69187.c: New test.

From-SVN: r232668

Previously, .rodata was hardcoded.  For C++ vague linkage functions,
this resulted in needlessly duplicated literals.  With the new split
stack support, this resulted in link errors, due to .rodata containing
relocations to the discarded text sections.

gcc/ChangeLog:

	* config/s390/s390.md (pool_section_start): Use switch_to_section
	to select proper read-only data section instead of hardcoding .rodata.
	(pool_section_end): Use switch_to_section to match the above.

From-SVN: r232667

2016-01-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69378
	* tree-ssa-sccvn.c (dominated_by_p_w_unex): New function.
	(set_ssa_val_to): Use it for dominance checks taking into
	account not executable edges.

From-SVN: r232666

	PR c++/69355
	* tree-dfa.c (get_ref_base_and_extent): Use GET_MODE_BITSIZE (mode)
	for bitsize instead of GET_MODE_PRECISION (mode).

	* g++.dg/torture/pr69355.C: New test.

From-SVN: r232663

PR c/52291 - __sync_fetch_and_add and friends poorly specified for pointer
    types

2016-01-20  Martin Sebor  <msebor@redhat.com>

	* extend.texi (__sync Builtins): Clarify the semantics of
	__sync_fetch_and_OP built-ins on pointers.
	(__atomic Builtins): Same.

From-SVN: r232662

we used to fail using an iv from a different loop.

	* graphite-isl-ast-to-gimple.c (enum phi_node_kind): New.
	(class translate_isl_ast_to_gimple): Use phi_node_kind instead of bool.
	(is_valid_rename): Same.
	(translate_isl_ast_to_gimple::get_rename): Same.
	(translate_isl_ast_to_gimple::rename_all_uses): Same.
	(translate_isl_ast_to_gimple::rename_uses): Same.
	(get_new_name): Check for close_phi nodes.
	(copy_loop_phi_args): Use phi_node_kind.
	(translate_isl_ast_to_gimple::copy_loop_close_phi_args): Same.
	(translate_isl_ast_to_gimple::copy_cond_phi_args): Same.

gcc/testsuite

	* gfortran.dg/graphite/interchange-3.f90: Adjust pattern.

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>

From-SVN: r232660

Adding a testcase and reverting this patch:
[PATCH] remove parameter_rename_map

This map was used in the transition to the new scop detection: with the new scop
detection, we do not need this map anymore.

       * graphite-isl-ast-to-gimple.c (gcc_expression_from_isl_ast_expr_id):
       Remove use of parameter_rename_map.
       (copy_def): Remove.
       (copy_internal_parameters): Remove.
       (graphite_regenerate_ast_isl): Remove call to copy_internal_parameters.
       * sese.c (new_sese_info): Do not initialize parameter_rename_map.
       (free_sese_info): Do not free parameter_rename_map.
       (set_rename): Do not use parameter_rename_map.
       (rename_uses): Update call to set_rename.
       (graphite_copy_stmts_from_block): Do not use parameter_rename_map.
       * sese.h (parameter_rename_map_t): Remove.
       (struct sese_info_t): Remove field parameter_rename_map.

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>

From-SVN: r232659

        * graphite-isl-ast-to-gimple.c: Fix comment.
        * graphite-scop-detection.c (defined_in_loop_p): New.
        (canonicalize_loop_closed_ssa): Do not add close phi nodes for SSA
        names defined in loop.

gcc/testsuite

        * gcc.dg/graphite/pr68976.c: New test.

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>

From-SVN: r232658

	* graphite-scop-detection.c (scop_detection::harmful_loop_in_region):
	Discard unstructured if-then-else regions.

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>

From-SVN: r232657

        * graphite-sese-to-poly.c (set_scop_parameter_dim): Remove.
        (cleanup_loop_iter_dom): Remove.
        (build_loop_iteration_domains): Remove.
        (build_scop_context): Remove.
        (build_scop_iteration_domain): Remove.
        (add_loop_constraints): New.
        (build_iteration_domains): New.
        (build_poly_scop): Call build_iteration_domains.

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>

From-SVN: r232656

        * graphite-scop-detection.c
        (scop_detection::harmful_loop_in_region): Free dom and loops.
        (scop_detection::loop_body_is_valid_scop): Free bbs.

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>

From-SVN: r232655

	* graphite-scop-detection.c (record_loop_in_sese): New.
	(gather_bbs::before_dom_children): Call record_loop_in_sese.
	(build_scops): Remove call to build_sese_loop_nests.
	* sese.c (sese_record_loop): Remove.
	(build_sese_loop_nests): Remove.
	(new_sese_info): Remove region->loops.
	(free_sese_info): Same.
	* sese.h (sese_contains_loop): Same.
	(build_sese_loop_nests): Remove.
	(sese_contains_loop): Remove.

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>

From-SVN: r232654

the bug was exposed by rewriting an if condition into an assert in the computation
of the loop iteration domains.

	* graphite-scop-detection.c (loop_is_valid_scop): Renamed loop_is_valid_in_scop.
	(scop_detection::harmful_stmt_in_region): Renamed harmful_loop_in_region.
	Call loop_is_valid_in_scop.

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>

From-SVN: r232653

	* graphite-isl-ast-to-gimple.c (translate_isl_ast): Also handle
	isl_ast_node_mark.

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>

From-SVN: r232652

	* graphite-poly.c (new_poly_bb): Remove use of PBB_IS_REDUCTION.
	* graphite.h (struct poly_bb): Remove field is_reduction.
        (PBB_IS_REDUCTION): Remove.

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>

From-SVN: r232651

	* graphite-dependences.c (constrain_domain): Add call to isl_*_coalesce.
	(add_pdr_constraints): Same.
	(scop_get_reads): Same.
	(scop_get_must_writes): Same.
	(scop_get_may_writes): Same.
	(scop_get_original_schedule): Same.
	(extend_schedule): Same.
	(apply_schedule_on_deps): Same.
	(carries_deps): Same.
	(compute_deps): Same.
	(scop_get_dependences): Same.
	* graphite-isl-ast-to-gimple.c
	(translate_isl_ast_to_gimple::generate_isl_schedule): Same.
	* graphite-optimize-isl.c (get_schedule_for_band): Same.
	(get_schedule_for_band_list): Same.
	(get_schedule_map): Same.
	(apply_schedule_map_to_scop): Same.
	* graphite-sese-to-poly.c (build_pbb_scattering_polyhedrons): Same.
	(build_loop_iteration_domains): Same.
	(add_condition_to_pbb): Same.
	(add_param_constraints): Same.
	(pdr_add_memory_accesses): Same.
	(pdr_add_data_dimensions): Same.

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>

From-SVN: r232650

2016-01-20  Sandra Loosemore <sandra@codesourcery.com>

	gcc/
	* doc/invoke.texi (Instrumentation Options): Clarify -mmpx linking
	requirements.

From-SVN: r232648

2016-01-20  Sandra Loosemore <sandra@codesourcery.com>

	gcc/
	* common.opt (feliminate-dwarf2-dups): Replace references to
	"DWARF 2" with just "DWARF".
	* config/ia64/ia64.opt (mdwarf2-asm): Likewise.
	* doc/extend.texi: Likewise.
	* doc/cpp.texi: Likewise.
	* doc/invoke.texi: Likewise.
	(Option Summary): Add -gdwarf to list of Debugging Options.
	(Debugging Options): Document -gdwarf.
	* doc/contrib.texi: Spell "DWARF" like that.

From-SVN: r232647

2016-01-20  Matthias Klose  <doko@ubuntu.com>

        * libtool-version: Remove.

From-SVN: r232645

From-SVN: r232644

	* omp-low.c (expand_omp_target): Avoid -Wmaybe-uninitialized
	warning.  Fix up formatting.

From-SVN: r232641

	PR middle-end/67653
	* gimplify.c (gimplify_asm_expr): Warn if it is too late to
	attempt to mark memory input operand addressable and
	call prepare_gimple_addressable in that case.  Don't adjust
	input_location for diagnostics, use error_at instead.

	* c-c++-common/pr67653.c: New test.
	* gcc.dg/torture/pr29119.c: Add dg-warning.

From-SVN: r232640

gcc/
	* config/rs6000/ppc-auxv.h: New file.
	* config/rs6000/rs6000-builtin.def (cpu_init): Add new builtin.
	(cpu_is): Likewise.
	(cpu_supports): Likewise.
	* config/rs6000/rs6000.c: include "ppc-auxv.h".
	(cpu_is_info): New variable.
	(cpu_supports_info): Likewise.
	(tcb_verification_symbol): Likewise.
	(cpu_builtin_p): Likewise.
	(cpu_expand_builtin): New function.
	(rs6000_expand_ternop_builtin): Add support for CPU builtin functions.
	(rs6000_init_builtins): Likewise.
	(rs6000_elf_file_end): Emit HWCAP in TCB verification symbol.
	* config/rs6000/rs6000.h (TLS_REGNUM): New define.
	* configure.ac (gcc_cv_libc_provides_hwcap_in_tcb): New test.
	* configure: Regenerate.
	* config.in: Likewise.
	* doc/extend.texi (PowerPC Built-in Functions): Document
	__builtin_cpu_init, __builtin_cpu_is and __builtin_cpu_supports.

gcc/testsuite/
	* gcc.target/powerpc/cpu-builtin-1.c: New test.

From-SVN: r232634

	PR target/68609
        * config/rs6000/rs6000.c (rs6000_emit_swsqrt): Add vector sqrt
        domain check.
        * config/rs6000/vector.md (sqrt<mode>2): Call rs6000_emit_swsqrt
        for V4SFmode.

From-SVN: r232632

PR bootstrap/69343
PR bootstrap/69339
PR tree-opt/68964

Revert:
gcc/
  * tree.c (tm_define_builtin): New.
  (find_tm_vector_type): New.
  (build_tm_vector_builtins): New.
  (build_common_builtin_nodes): Call it.
libitm/
  * Makefile.am (libitm_la_SOURCES) [ARCH_AARCH64]: Add vect128.cc
  (libitm_la_SOURCES) [ARCH_ARM]: Add neon.cc
  (libitm_la_SOURCES) [ARCH_PPC]: Add vect128.cc
  (libitm_la_SOURCES) [ARCH_S390]: Add vect128.cc
  * configure.ac (ARCH_AARCH64): New conditional.
  (ARCH_PPC, ARCH_S390): Likewise.
  * Makefile.in, configure: Rebuild.
  * libitm.h (_ITM_TYPE_M128): Always define.
  * vect64.cc: Split ...
  * vect128.cc: ... out of...
  * config/x86/x86_sse.cc: ... here.
  * config/arm/neon.cc: New file.

From-SVN: r232631

        PR libstdc++/69310
        * config/os/bsd/darwin/os_defines.h (_GLIBCXX_USE_WEAK_REF): Define.

From-SVN: r232628

	PR libstdc++/60401
	* include/c_compatibility/math.h (acosh, asinh, atanh, acbrt,
	copysign, erf, erfc, exp2, expm1, fdim, fma, fmax, fmin, hypot, ilogb,
	lgamma, llrint, llround, log1p, log2, logb, lrint, lround, nearbyint,
	nextafter, nexttoward, remainder, remquo, rint, round, scalbln, scalbn,
	tgamma, trunc) [__cplusplus >= 201103L && _GLIBCXX_USE_C99_MATH_TR1]:
	Add using declarations.
	* testsuite/26_numerics/headers/cmath/60401.cc: New.

From-SVN: r232627

From-SVN: r232626

2016-01-15  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR c/24293
        * c-tree.h (incomplete_record_decls): Declare.
        * c-parser.c (incomplete_record_decls): Define.
        (c_parser_translation_unit): Iterate through incomplete_record_decls and
        report error if any decl has zero size.
        * c-decl.c (finish_decl): Append static decl with incomplete struct/union
        or enum type to incomplete_record_decls.

testsuite/
        * gcc.dg/pr24293.c: New test.
        * gcc.dg/Wcxx-compat-8.c: Adjust to accept error due to
        incomplete struct type.
        * gcc.dg/declspec-1.c: Likewise.
        * gcc.dg/pr63549.c: Likewise.

From-SVN: r232622