2015-12-14  Richard Biener  <rguenther@suse.de>

PR tree-optimization/68852
* tree-vectorizer.h (struct _slp_tree): Add def_type member.
(SLP_TREE_DEF_TYPE): New accessor.
* tree-vect-stmts.c (vect_is_simple_use): Remove BB vectorization
hack.
* tree-vect-slp.c (vect_create_new_slp_node): Initialize
SLP_TREE_DEF_TYPE.
(vect_build_slp_tree): When a node is to be built up from scalars
do not push a NULL as child but instead set its def_type to
vect_external_def.
(vect_analyze_slp_cost_1): Check for child def-type instead
of NULL.
(vect_detect_hybrid_slp_stmts): Likewise.
(vect_bb_slp_scalar_cost): Likewise.
(vect_get_slp_defs): Likewise.
(vect_slp_analyze_node_operations): Likewise.  Before
processing node push the children def-types to the underlying
stmts vinfo and restore it afterwards.
(vect_schedule_slp_instance): Likewise.
(vect_slp_analyze_bb_1): Do not mark stmts not in SLP instances
as not vectorizable.

* g++.dg/torture/pr68852.C: New testcase.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231619 138bc75d-0d04-0410-961f-82ee72b054a4

2015-12-14  Richard Biener  <rguenther@suse.de>

PR tree-optimization/68775
* tree-vect-slp.c (vect_build_slp_tree): Make sure to apply
a operand swapping even if replacing the op with scalars.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231617 138bc75d-0d04-0410-961f-82ee72b054a4

[combine] Don't create LSHIFTRT of zero bits in change_zero_ext

* combine.c (change_zero_ext): Do not create a shift of zero length.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231613 138bc75d-0d04-0410-961f-82ee72b054a4

Bad date on the Changelog entry, boo hiss.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231612 138bc75d-0d04-0410-961f-82ee72b054a4

Document the implementation of Logical Operator Type Traits.

* doc/html/index.html: Regenerate.
* doc/html/manual/status.html: Likewise.
* doc/xml/manual/status_cxx2017.xml: Add P0013R1 to C++ 201z
and to Library Fundamentals 2 TS.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231611 138bc75d-0d04-0410-961f-82ee72b054a4

* gcc.dg/builtin-return-1.c: Correct effective-target test.
* gcc.dg/stack-usage-2.c: Use effective-target test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231610 138bc75d-0d04-0410-961f-82ee72b054a4

[ARC] Use TARGET_NO_SPECULATION_IN_DELAY_SLOTS_P hook.

gcc/
2015-12-14  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.c (TARGET_NO_SPECULATION_IN_DELAY_SLOTS_P):
Provide target hook.
(arc_no_speculation_in_delay_slots_p): New function.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231609 138bc75d-0d04-0410-961f-82ee72b054a4

[ARC] Refurbish emitting DWARF2 related information when expanding epilogue.

gcc/
2015-12-14  Claudiu Zissulescu  <claziss@synopsys.com>
    Andrew Burgess  <andrew.burgess@embecosm.com>

* config/arc/arc.c (frame_move): Set frame related flag.
(arc_save_restore): Emit epilogue related DWARF2 information.
(arc_expand_epilogue): Likewise.
* config/arc/arc.opt (mno-epilogue-cfi): Remove.
(mepilogue-cfi): Likewise.
* doc/invoke.texi: Remove -m[no]-epilogue-cfi documentation.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231608 138bc75d-0d04-0410-961f-82ee72b054a4

[PR 66616] Check for thunks when adding extra constants to clones

2015-12-14  Martin Jambor  <mjambor@suse.cz>

PR ipa/66616
* ipa-cp.c (propagate_constants_accross_call): Move thuk check...
(call_passes_through_thunk_p): ...here.
(find_more_scalar_values_for_callers_subset): Perform thunk checks
like propagate_constants_accross_call does.

testsuite/
* g++.dg/ipa/pr66616.C: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231607 138bc75d-0d04-0410-961f-82ee72b054a4

PR rtl-optimization/68730
* cfgrtl.c (cfg_layout_finalize): Free dominators.

* gcc.dg/pr68730.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231606 138bc75d-0d04-0410-961f-82ee72b054a4

2015-12-14  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    PR testsuite/68629
    * lib/target-supports.exp (check_effective_target_cilkplus): Also
    check that compiling with -fcilkplus does not give an error.
    * c-c++-common/attr-simd-3.c: Require cilkplus effective target.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231605 138bc75d-0d04-0410-961f-82ee72b054a4

Daily bump.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231604 138bc75d-0d04-0410-961f-82ee72b054a4

[PR67355] drop dummy zero from reverse VTA ops, fix infinite recursion

VTA's cselib expression hashing compares expressions with the same
hash before adding them to the hash table.  When there is a collision
involving a self-referencing expression, we could get infinite
recursion, in spite of the cycle breakers already in place.  The
problem is currently latent in the trunk, because by chance we don't
get a collision.

Such value cycles are often introduced by reverse_op; most often,
they're indirect, and then value canonicalization takes care of the
cycle, but if the reverse operation simplifies to the original value,
we used to issue a (plus V (const_int 0)), because at some point
adding a plain value V to a location list as a reverse_op equivalence
caused other problems.

This dummy zero, in turn, caused the value canonicalizer to not fully
realize the equivalence, leading to more complex graphs and,
occasionally, to infinite recursion when comparing such
value-plus-zero expressions recursively.

Simply using V solves the infinite recursion from the PR testcase,
since the extra equivalence and the preexisting value canonicalization
together prevent recursion while the unrecognized equivalence
wouldn't, but it exposed another infinite recursion in
memrefs_conflict_p: get_addr had a cycle breaker in place, to skip RTL
referencing values introduced after the one we're examining, but it
wouldn't break the cycle if the value itself appeared in the
expression being examined.

After removing the dummy zero above, this kind of cycle in the
equivalence graph is no longer introduced by VTA itself, but dummy
zeros are also present in generated code, such as in the 32-bit x86's
pro_epilogue_adjust_stack_si_add epilogue insn generated as part of
the builtin longjmp in _Unwind_RaiseException building libgcc's
unwind-dw2.o.  So, break the recursion cycle for them too.

for  gcc/ChangeLog

PR debug/67355
* var-tracking.c (reverse_op): Don't add dummy zero to reverse
ops that simplify back to the original value.
* alias.c (refs_newer_value_p): Cut off recursion for
expressions containing the original value.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231599 138bc75d-0d04-0410-961f-82ee72b054a4

* gcc.dg/graphite/pr42729.c: XFAIL AIX.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231598 138bc75d-0d04-0410-961f-82ee72b054a4

[PATCH][PR target/19201] Peephole to improve clearing items in structure for m68k
* config/m68k/m68k.md (load feeding clear byte): New peephole2.

* gcc.target/m68k/pr19201.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231597 138bc75d-0d04-0410-961f-82ee72b054a4

[PATCH] m68k testsuite TLC

* gcc.target/m68k/pr63347.c: Remove #include <stdlib> add -w to
command line options.
* gcc.target/m68k/20090709-1.c: Adjust expected output.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231596 138bc75d-0d04-0410-961f-82ee72b054a4

Handle sizes and kinds params of GOACC_paralllel in find_func_clobbers

2015-12-13  Tom de Vries  <tom@codesourcery.com>

* tree-ssa-structalias.c (find_func_clobbers): Handle sizes and kinds
parameters of GOACC_paralllel.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231595 138bc75d-0d04-0410-961f-82ee72b054a4

* cgraph.c (cgraph_node::get_untransformed_body): Pass compressed
flag to lto_get_section_data.
* varpool.c (varpool_node::get_constructor): Likewise.
* lto-section-in.c (lto_get_section_data): Add new flag decompress.
(lto_free_section_data): Likewise.
(lto_get_raw_section_data): New function.
(lto_free_raw_section_data): New function.
(copy_function_or_variable): Copy sections w/o decompressing.
(lto_output_decl_state_refs): Picke compressed bit.
* lto-streamer.h (lto_in_decl_state): New flag compressed.
(lto_out_decl_state): Likewise.
(lto_get_section_data, lto_free_section_data): Update prototypes
(lto_get_raw_section_data, lto_free_raw_section_data): Declare.
(lto_write_raw_data): Declare.
(lto_begin_section): Remove FIXME.
(lto_write_raw_data): New function.
(lto_write_stream): Remove FIXME.
(lto_new_out_decl_state): Set compressed flag.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231594 138bc75d-0d04-0410-961f-82ee72b054a4

* cgraph.c (cgraph_node::get_untransformed_body): Pass compressed
flag to lto_get_section_data.
* varpool.c (varpool_node::get_constructor): Likewise.
* lto-section-in.c (lto_get_section_data): Add new flag decompress.
(lto_free_section_data): Likewise.
(lto_get_raw_section_data): New function.
(lto_free_raw_section_data): New function.
(copy_function_or_variable): Copy sections w/o decompressing.
(lto_output_decl_state_refs): Picke compressed bit.
* lto-streamer.h (lto_in_decl_state): New flag compressed.
(lto_out_decl_state): Likewise.
(lto_get_section_data, lto_free_section_data): Update prototypes
(lto_get_raw_section_data, lto_free_raw_section_data): Declare.
(lto_write_raw_data): Declare.
(lto_begin_section): Remove FIXME.
(lto_write_raw_data): New function.
(lto_write_stream): Remove FIXME.
(lto_new_out_decl_state): Set compressed flag.

* lto.c (lto_read_in_decl_state): Unpickle compressed bit.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231593 138bc75d-0d04-0410-961f-82ee72b054a4

    * g++.dg/opt/pr48549.C: XFAIL AIX.
        * g++.dg/abi/anon1.C: XFAIL AIX.
        * gcc.dg/graphite/pr42917.c: XFAIL AIX.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231592 138bc75d-0d04-0410-961f-82ee72b054a4

Daily bump.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231591 138bc75d-0d04-0410-961f-82ee72b054a4

* tree.c (free_lang_data_in_type, find_decls_types_r): Also free
unnecesary type decls.
* tree.h (is_redundant_typedef): Declare.
* dwarf2out.c (is_redundant_typedef): Export; booleanize

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231588 138bc75d-0d04-0410-961f-82ee72b054a4

Fix date

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231587 138bc75d-0d04-0410-961f-82ee72b054a4

* config/sparc/sparc.h (TARGET_SUPPORTS_WIDE_INT): Define to 1.
* config/sparc/sparc.c (sparc_emit_set_const64): Remove code
conditionalized on HOST_BITS_PER_WIDE_INT == 32.
(sparc_cannot_force_const_mem) <CONST_WIDE_INT>: New case.
<CONST_DOUBLE>: Remove VOIDmode test.
(epilogue_renumber) <CONST_WIDE_INT>: New case.
(sparc_print_operand): Remove support for CONST_DOUBLE with VOIDmode.
(sparc_assemble_integer): Likewise.
(set_extends): Likewise.
(sparc_rtx_costs) <CONST_INT>: Use SMALL_INT.
<CONST_WIDE_INT>: New case.
<CONST_DOUBLE>: Remove support for VOIDmode.
<MULT>: Remove support for CONST_DOUBLE with VOIDmode.
* config/sparc/predicates.md (const_zero_operand): Add const_wide_int.
(const_all_ones_operand): Likewise.
(uns_small_int_operand): Remove const_double and code conditionalized
on HOST_BITS_PER_WIDE_INT == 32.
(arith_double_operand): Likewise.
(arith_double_add_operand): Likewise.
(input_operand): Remove support for CONST_DOUBLE with DImode.
* config/sparc/sparc.md (DImode CONST_INT splitter): Remove code
conditionalized on HOST_BITS_PER_WIDE_INT == 32.
(DFmode CONST_DOUBLE splitter): Likewise.
(*adddi3_insn_sp32): Likewise.
(*subdi3_insn_sp32): Likewise.
(DImode logical splitter): Likewise.
(DImode CONST_DOUBLE splitter): Delete.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231586 138bc75d-0d04-0410-961f-82ee72b054a4

2014-12-12  Tobias Burnus  <burnus@net-b.de>

gcc/fortran
        PR fortran/45859
        * expr.c (gfc_is_simply_contiguous): Optionally permit array
        * elements.
        (gfc_check_pointer_assign): Update call.
        * interface.c (compare_parameter): Ditto.
        * trans-array.c (gfc_conv_array_parameter): Ditto.
        * trans-intrinsic.c (gfc_conv_intrinsic_transfer,
        conv_isocbinding_function): Ditto.
        * gfortran.h (gfc_is_simply_contiguous): Update prototype.

gcc/testsuite/
        PR fortran/45859
        * gcc/testsuite/gfortran.dg/coarray_args_2.f90: Remove dg-error.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231585 138bc75d-0d04-0410-961f-82ee72b054a4

2014-12-12  Tobias Burnus  <burnus@net-b.de>

gcc/c-family/
        PR fortran/68815
        * c-format.c (gcc_gfc_char_table): Add 'q' flag to remaining
        specifiers (%d, %i,%u and %c).

gcc/fortran/
        PR fortran/68815
        * check.c (gfc_check_reshape): Replace %<%d%> by %qd.
        * matchexp.c (gfc_match_defined_op_name): Use %qc.
        * symbol.c (gfc_add_new_implicit_range,
        gfc_merge_new_implicit): Ditto.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231584 138bc75d-0d04-0410-961f-82ee72b054a4

    * gcc.target/powerpc/pr67808.c: Add -mlong-double-128 option.
        * g++.dg/cpp1y/pr58708.C: Test appropriate value for size of
        wchar_t.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231583 138bc75d-0d04-0410-961f-82ee72b054a4

gcc:
PR sanitizer/68418
* c-family/c-ubsan.c (ubsan_instrument_shift): Disable
sanitization of left shifts for wrapping signed types as well.

gcc/testsuite:
PR sanitizer/68418
* gcc.dg/ubsan/c99-wrapv-shift-1.c,
gcc.dg/ubsan/c99-wrapv-shift-2.c: New testcases.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231582 138bc75d-0d04-0410-961f-82ee72b054a4

Daily bump.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231580 138bc75d-0d04-0410-961f-82ee72b054a4

[PATCH][PR tree-optimization/68844] Fix testcase expected output

PR tree-optimization/68844
* gcc.dg/tree-ssa/ssa-dom-thread-4.c: Update expected output.

2015-12-11  Jan Beulich  <jbeulich@suse.com>

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231577 138bc75d-0d04-0410-961f-82ee72b054a4

PR middle-end/68215
* tree-vect-generic.c (tree_vec_extract): Remove GSI parameter.
Do not gimplify the result.
(do_unop): Adjust call to tree_vec_extract.
(do_binop): Likewise.
(do_compare): Likewise.
(do_plus_minus): Likewise.
(do_negate): Likewise.
(expand_vector_condition): Likewise.
(do_cond): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231575 138bc75d-0d04-0410-961f-82ee72b054a4

Fix std::invoke support for reference_wrappers

PR libstdc++/59768
* include/std/functional (_Unwrap, __invfwd): Define.
(__invoke_impl): Remove reference_wrapper overloads and use __invfwd.
* include/std/type_traits (__result_of_memobj, __result_of_memfun):
Add partial specializations for const reference_wrappers and simplify.
* testsuite/20_util/bind/ref_neg.cc: Use dg-excess-errors.
* testsuite/20_util/function_objects/invoke/59768.cc: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231574 138bc75d-0d04-0410-961f-82ee72b054a4

* config/nvptx/nvptx.h (RETURN_ADDR_REGNO): Delete.
(OUTGOING_ARG_POINTER_REGNUM): Delete.
(ASM_OUTPUT_COMMON, ASM_OUTPUT_LOCAL): Delete.
(REGISTER_NAMES): Name static chain regs.
* config/nvptx/nvptx.c (nvptx_function_arg): Add ARG_UNUSED, merge
ifs.
(nvptx_incoming_arg): Merge ifs.
(nvptx_function_arg_boundary): Reimplement to avoid mixing units.
(nvptx_function_value): Tail call nvptx_libcall_value.
(nvptx_pass_by_reference): Add ARG_UNUSED.
(nvptx_static_chain): Use conditional op.
(nvptx_handle_kernel_attribute): Use VOID_TYPE_P.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231572 138bc75d-0d04-0410-961f-82ee72b054a4

2015-12-11  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
    Dominique d'Humieres  <dominiq@lps.ens.fr>

PR target/26427
PR target/33120
PR testsuite/35710

* config/darwin.c (darwin_use_anchors_for_symbol_p): Fix indention and
trailing whitespace.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231571 138bc75d-0d04-0410-961f-82ee72b054a4

* gcc.dg/pr59605-1.c: Reduce iterations for nvptx.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231570 138bc75d-0d04-0410-961f-82ee72b054a4

avoid alignment of static variables affecting stack's

Function (or more narrow) scope static variables (as well as others not
placed on the stack) should also not have any effect on the stack
alignment. I noticed the issue first with Linux'es dynamic_pr_debug()
construct using an 8-byte aligned sub-file-scope local variable.

According to my checking bad behavior started with 4.6.x (4.5.3 was
still okay), but generated code got quite a bit worse as of 4.9.0.

gcc/
2015-12-11  Jan Beulich  <jbeulich@suse.com>

* cfgexpand.c (expand_one_var): Exit early for static and
external variables when adjusting stack alignment related.

gcc/testsuite/
2015-12-11  Jan Beulich  <jbeulich@suse.com>

* gcc.c-torture/execute/stkalign.c: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231569 138bc75d-0d04-0410-961f-82ee72b054a4

* ChangeLog: Remove confusign PR marker.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231567 138bc75d-0d04-0410-961f-82ee72b054a4

S/390: Wide int support.

gcc/ChangeLog

* config/s390/s390.c (s390_rtx_costs)
(s390_cannot_force_const_mem, legitimate_pic_operand_p)
(s390_preferred_reload_class, s390_reload_symref_address)
(legitimate_reload_constant_p, print_operand): Wide int support.
* config/s390/predicates.md ("const0_operand", "constm1_operand")
("consttable_operand"): Likewise.
("larl_operand"): Add a comment.
* config/s390/s390.h (TARGET_SUPPORTS_WIDE_INT): Enable wide int
support.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231566 138bc75d-0d04-0410-961f-82ee72b054a4

libmpx/

2015-12-11  Tsvetkova Alexandra  <aleksandra.tsvetkova@intel.com>

* mpxrt/Makefile.am (libmpx_la_LDFLAGS): Add -version-info
option.
* libmpxwrap/Makefile.am (libmpx_la_LDFLAGS): Likewise and
fix include path.
* libmpx/Makefile.in: Regenerate.
* mpxrt/Makefile.in: Regenerate.
* libmpxwrap/Makefile.in: Regenerate.
* mpxrt/libtool-version: New version.
* libmpxwrap/libtool-version: Likewise.
* mpxrt/libmpx.map: Add new version and a new symbol.
* mpxrt/mpxrt.h: New file.
* mpxrt/mpxrt.c (NUM_L1_BITS): Moved to mpxrt.h.
(REG_IP_IDX): Moved to mpxrt.h.
(REX_PREFIX): Moved to mpxrt.h.
(XSAVE_OFFSET_IN_FPMEM): Moved to mpxrt.h.
(MPX_L1_SIZE): Moved to mpxrt.h.
* libmpxwrap/mpx_wrappers.c (mpx_pointer): New type.
(mpx_bt_entry): New type.
(alloc_bt): New function.
(get_bt): New function.
(copy_if_possible): New function.
(copy_if_possible_from_end): New function.
(move_bounds): New function.
(__mpx_wrapper_memmove): Use move_bounds to copy bounds.

gcc/testsuite/

2015-12-11  Tsvetkova Alexandra  <aleksandra.tsvetkova@intel.com>

* gcc.target/i386/mpx/memmove-1.c: New test.
* gcc.target/i386/mpx/memmove-2.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231565 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/
* config/nvptx/nvptx.h (TARGET_SUPPORTS_WIDE_INT): Define.
* config/nvptx/nvptx.c (nvptxx_assemble_integer): Return false for
unrecognizable RTX.

gcc/testsuite/
* gcc.target/nvptx/ary-init.c: Repair dg_final syntax.
* gcc.target/nvptx/decl-init.c: Likewise.  Add TI case.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231564 138bc75d-0d04-0410-961f-82ee72b054a4

PR libstdc++/68139

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231562 138bc75d-0d04-0410-961f-82ee72b054a4

Remove unpaired TERMINATE_PASS_LIST in passes.def

2015-12-11  Tom de Vries  <tom@codesourcery.com>

* passes.def: Remove unpaired TERMINATE_PASS_LIST.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231561 138bc75d-0d04-0410-961f-82ee72b054a4

* hash-map.h (hash_map::hash_map): Gather statistics only
when GATHER_STATISTICS is true.
* hash-set.h (hash_set::hash_set): Ditto.
* hash-table.h (hash_table::hash_table): Ditto.
(hash_table::create_ggc): Ditto.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231560 138bc75d-0d04-0410-961f-82ee72b054a4

Add an asssert and testcase for PR 68064

2015-12-11  Martin Jambor  <mjambor@suse.cz>

PR ipa/68064
* ipa-prop.c (ipa_compute_jump_functions_for_edge): Add checking
assert that align is nonzero.

testsuite/
* g++.dg/torture/pr68064.C: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231559 138bc75d-0d04-0410-961f-82ee72b054a4

S/390: Fix warnings in "*setmem_long..." patterns.

gcc/ChangeLog

* config/s390/s390.c (s390_expand_setmem): Use new expanders.
* config/s390/s390.md ("*setmem_long")
("*setmem_long_and", "*setmem_long_31z"): Fix warnings.
("*setmem_long_and_31z"): New define_insn.
("setmem_long_<P:mode>"): New expanders.
* (<modesize>): New mode attribute

gcc/testsuite/ChangeLog

* gcc.target/s390/md/setmem_long-1.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231558 138bc75d-0d04-0410-961f-82ee72b054a4

S/390: Fix warnings in "*setmem_long..." patterns.

gcc/ChangeLog

* config/s390/s390.md ("movstr", "*movstr"): Fix warning.
("movstr<P:mode>"): New indirect expanders used by "movstr".

gcc/testsuite/ChangeLog

* gcc.target/s390/md/movstr-1.c: New test.
* gcc.target/s390/s390.exp: Add subdir md.
Do not run hotpatch tests twice.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231557 138bc75d-0d04-0410-961f-82ee72b054a4

Fix PR target/67484

    Uros Bizjak  <ubizjak@gmail.com>

PR target/67484
* config/i386/i386.c (ix86_valid_target_attribute_tree):
Use ggc_strdup to copy option_strings to opts->x_ix86_arch_string and
opts->x_ix86_tune_string.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231556 138bc75d-0d04-0410-961f-82ee72b054a4

2015-12-11  Richard Biener  <rguenther@suse.de>

* lto-streamer.h (lto_simple_header_with_strings): Remove
main_size field already in lto_simple_header.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231555 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/

* tree-vect-stmts.c (vectorizable_mask_load_store): Check
mask vectype.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231554 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/

* config/i386/i386.c (ix86_get_mask_mode): Use scalar
modes for 32 and 16 byte boolean vectors when possible.

gcc/testsuite/

* gcc.dg/vect/vect-32-chars.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231553 138bc75d-0d04-0410-961f-82ee72b054a4

Fix shrink-wrapping bug (PR67778, PR68634)

After shrink-wrapping has found the "tightest fit" for where to place
the prologue, it tries move it earlier (so that frame saves are run
earlier) -- but without copying any more basic blocks.

Unfortunately a candidate block we select can be inside a loop, and we
will still allow it (because the loop always exits via our previously
chosen block).  We can do that just fine if we make a duplicate of the
block, but we do not want to here.

So we need to detect this situation.  We can place the prologue at a
previous block PRE only if PRE dominates every block reachable from
it, because then we will never need to duplicate that block (it will
always be executed with prologue).

2015-12-11  Segher Boessenkool  <segher@kernel.crashing.org>

PR rtl-optimization/67778
PR rtl-optimization/68634
* shrink-wrap.c (try_shrink_wrapping): Add a comment about why we want
to put the prologue earlier.  When determining if an earlier block is
suitable, make sure it dominates every block reachable from it.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231552 138bc75d-0d04-0410-961f-82ee72b054a4

Daily bump.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231551 138bc75d-0d04-0410-961f-82ee72b054a4

PR ipa/61886
* lto-symtab.c (lto_symtab_merge_p): Avoid merging across different
values of error and warning attributes.
* gcc.dg/lto/pr61886_0.c: New testcase

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231548 138bc75d-0d04-0410-961f-82ee72b054a4

rtlanal: Fix bits/bytes confusion in set_noop_p (PR68814)

The meaning of ZERO_EXTRACT depends on BITS_BIG_ENDIAN, not on
BYTES_BIG_ENDIAN.  This caused PR68814.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231547 138bc75d-0d04-0410-961f-82ee72b054a4

* config/nvptx/nvptx.c (nvptx_function_arg,
nvptx_function_incoming_arg, nvptx_function_arg_advance,
nvptx_strict_argument_naming, nvptx_function_arg_boundary,
nvptx_libcall_value, nvptx_function_value,
nvptx_function_value_regno_p, nvptx_pass_by_reference,
nvptx_return_in_memory, nvptx_promote_function_mode,
nvptx_static_chain): Move earlier.
(write_one_arg): Break out as helper fn for ...
(write_arg): ... this new function.  Adjust all callers.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231543 138bc75d-0d04-0410-961f-82ee72b054a4

* lto-streamer-out.c (wrap_refs): Only wrap public decls.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231541 138bc75d-0d04-0410-961f-82ee72b054a4

* ipa-cp.c (ipcp_cloning_candidate_p): Use node->optimize_for_size_p.
(good_cloning_opportunity_p): Likewise.
(gather_context_independent_values): Do not return true when
polymorphic call context is known or when we have known aggregate
value of unused parameter.
(estimate_local_effects): Try to create clone for all context
when either some params are substituted or devirtualization is possible
or some params can be removed; use local flag instead of
node->will_be_removed_from_program_if_no_direct_calls_p.
(identify_dead_nodes): Likewise.

* gcc.c-torture/execute/20010122-1.c: Disable cloning.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231540 138bc75d-0d04-0410-961f-82ee72b054a4

Add -Wmisleading-indentation to -Wall

gcc/c-family/ChangeLog:
* c.opt (Wmisleading-indentation): Add to -Wall for C and C++.

gcc/ChangeLog:
* doc/invoke.texi (-Wall): Add -Wmisleading-indentation to the
list.
(-Wmisleading-indentation): Update documentation to reflect
being enabled by -Wall in C/C++.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231539 138bc75d-0d04-0410-961f-82ee72b054a4

2015-12-10  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/68691
* lra-spills.c (lra_final_code_change): Check pseudo occurrence
number in non-debug insns and remove debug insns if necessary.

2015-12-10  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/68691
* gcc.target/i386/pr68691.c: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231538 138bc75d-0d04-0410-961f-82ee72b054a4

    * invoke.texi (Warning Options): Update -Wall options.  Clarify
        when some -Wextra options are enabled.  Add -Wplacement-new example.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231533 138bc75d-0d04-0410-961f-82ee72b054a4

PR tree-optimization/68619
* graphite-scop-detection.c (gather_bbs::before_dom_children):
Change return type to an edge.  Always return NULL.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231532 138bc75d-0d04-0410-961f-82ee72b054a4

testsuite/lib/multline.exp: show test name and line numbers

gcc/testsuite/ChangeLog:
* lib/multiline.exp (_multiline_expected_outputs): Update comment.
(dg-end-multiline-output): Capture line numbers within
_multiline_expected_outputs.
(handle-multiline-outputs): Access global $testname_with_flags
and add it as a prefix to pass/fail results.  Extract line numbers
from $_multiline_expected_outputs and print them within pass/fail
results, replacing the printing of $index.  Consolidate the
string prefix shared between pass/fail into a new local ($title).

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231530 138bc75d-0d04-0410-961f-82ee72b054a4

2015-12-10  Jeff Law  <law@redhat.com>

PR tree-optimization/68619
* tree-ssa-dom.c (dom_opt_dom_walker::before_dom_children): Propgate
return value from optimize_stmt.
(dom_opt_dom_walker): Add new argument to dom_walker constructor.
(pass_dominator:execute): If a block has an unreachable edge,
remove all jump threads through any successor of the affected block.
(record_equivalences_from_phis): Ignore alternative if the edge
does not have EDGE_EXECUTABLE set.
(single_incoming_edge_ignoring_loop_edges): Similarly.
(optimize_stmt): If a gimple_code has a compile-time constant
condition, return the edge taken for that constant value.  Also
change the condition to true/false as necessary.
* domwalk.h (dom_walker::dom_walker): Add new argument
skip_unreachable_blocks.  Don't provide empty constructor body.
(dom_walker::before_dom_children): Change return type.
(dom_walker::bb_reachable): Declare new private method.
(dom_walker::propagate_unreachable_to_edges): Likewise.
(dom_walker::m_unreachable_dom): Declare new private data member.
(dom_walker::m_skip_unreachable_blocks): Likewise.
* domwalk.c: Include dumpfile.h.
(dom_walker::dom_walker): New constructor.  Initialize private data
members.  If needed, set EDGE_EXECUTABLE for all edges in the CFG,
extracted from tree-ssa-sccvn.c.
(dom_walker::bb_reachable): New method extracted from tree-ssa-sccvn.c
(dom_walker::propagate_unreachable_to_edges): Likewise.
(dom_walker::walk): Only call before_dom_children on reachable
blocks.  If before_dom_children returns an edge, then clear
EDGE_EXECUTABLE for all other outgoing edges from the same block.
For unreachable blocks, call propagate_unreachable_to_edges.
Similarly, only call after_dom_children on reachable blocks.  For
unreachable blocks, conditionally clear m_unreachable_dom.
* tree-ssa-sccvn.c (sccvn_dom_walker::unreachable_dom): Remove
private data member.
(sccvn_dom_walker::after_dom_children): Use methods from dom_walker
class.
(run_scc_vn): Likewise.
(sccvn_dom_walker::before_dom_children): Likewise.  Return the taken
outgoing edge if a COND, SWITCH, or GOTO are optimized.
* compare-elim.c (find_comparison_dom_walker::before_dom_children):
Change return type to an edge.  Always return NULL.
* fwprop.c (single_def_use_dom_walker::before_dom_children): Likewise.
* gimple-ssa-strength-reduction.c
(find_candidates_dom_walker::before_dom_children): Likewise.
* ipa-prop.c (analysis_dom_walker::before_dom_children): Likewise.
(ipcp_modif_dom_walker::before_dom_children): Likewise.
* tree-into-ssa.c (rewrite_dom_walker::before_dom_children): Likewise.
(rewrite_update_dom_walker::before_dom_children): Likewise.
(mark_def_dom_children::before_dom_children): Likewise.
* tree-ssa-dse.c (dse_dom_walker::before_dom_children): Likewise.
* tree-ssa-loop-im.c
(invariantness_dom_walker::before_dom_children): Likewise.
(move_computations_dom_walker::before_dom_walker): Likewise.
* tree-ssa-phiopt.c
(nontrapping_dom_walker::before_dom_children): Likewise.
* tree-ssa-pre.c
(eliminate_dom_walker::before_dom_children): Likewise.
* tree-ssa-propagate.c
(substitute_and_fold_dom_walker::before_dom_children): Likewise.
* tree-ssa-strlen.c
(strlen_dom_walker::before_dom_children): Likewise.
* tree-ssa-uncprop.c
(uncprop_dom_walker::before_dom_children): Likewise.

PR tree-optimization/68619
* gcc.dg/tree-ssa/pr68619-1.c: New test.
* gcc.dg/tree-ssa/pr68619-2.c: New test.
* gcc.dg/tree-ssa/pr68619-3.c: New test.
* gcc.dg/tree-ssa/pr68619-4.c: New test.
* gcc.dg/tree-ssa/pr68619-5.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231527 138bc75d-0d04-0410-961f-82ee72b054a4

PR rtl-optimization/68376
PR rtl-optimization/68670
* ifcvt.c (noce_try_abs): For one_cmpl allow < 0, >= 0
or > -1 conditions regardless of negate, and disallow
all other conditions.

* gcc.c-torture/execute/pr68376-2.c (f5, f6, f7, f8): New
tests.
(main): Call them.
* gcc.dg/pr68670-1.c: New test.
* gcc.dg/pr68670-2.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231526 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/

* tree-chkp.c (chkp_call_returns_bounds_p): Return true
for VA_ARG call.
(chkp_fixup_inlined_call): New.
* tree-chkp.h (chkp_fixup_inlined_call): New.
* tree-stdarg.c: Include tree-chkp.h.
(expand_ifn_va_arg_1): Fixup bndret calls for removed
VA_ARG calls.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231525 138bc75d-0d04-0410-961f-82ee72b054a4

PR c++/68348
* g++.dg/cpp0x/pr68348.C: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231524 138bc75d-0d04-0410-961f-82ee72b054a4

2015-12-10  Martin Jambor  <mjambor@suse.cz>

* tree-inline.c (duplicate_remap_omp_clause_seq): New function.
(replace_locals_op): Duplicate gimple sequences in OMP clauses.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231523 138bc75d-0d04-0410-961f-82ee72b054a4

Fix -Wmisleading-indentation warning in graphite-optimize-isl.c

../../../src/gcc/graphite-optimize-isl.c: In function ‘isl_union_set* scop_get_domains(scop_p)’:
../../../src/gcc/graphite-optimize-isl.c:362:5: error: statement is indented as if it were guarded by... [-Werror=misleading-indentation]
     return res;
     ^~~~~~

In file included from ../../../src/gcc/hash-table.h:236:0,
                 from ../../../src/gcc/coretypes.h:348,
                 from ../../../src/gcc/graphite-optimize-isl.c:28:
../../../src/gcc/vec.h:1343:3: note: ...this ‘for’ clause, but it is not
   for (I = 0; (V).iterate ((I), &(P)); ++(I))
   ^

../../../src/gcc/graphite-optimize-isl.c:359:3: note: in expansion of macro ‘FOR_EACH_VEC_ELT’
   FOR_EACH_VEC_ELT (scop->pbbs, i, pbb)
   ^~~~~~~~~~~~~~~~

   351  static isl_union_set *
   352  scop_get_domains (scop_p scop ATTRIBUTE_UNUSED)
   353  {
   354    int i;
   355    poly_bb_p pbb;
   356    isl_space *space = isl_set_get_space (scop->param_context);
   357    isl_union_set *res = isl_union_set_empty (space);
   358
   359    FOR_EACH_VEC_ELT (scop->pbbs, i, pbb)
   360      res = isl_union_set_add_set (res, isl_set_copy (pbb->domain));
   361
   362      return res;
            ^ warning is here
   363  }

gcc/ChangeLog:
* graphite-optimize-isl.c (scop_get_domains): Fix indentation.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231522 138bc75d-0d04-0410-961f-82ee72b054a4

Fix -Wmisleading-indentation warning in ifcvt.c

../../../src/gcc/ifcvt.c: In function ‘bool noce_try_inverse_constants(noce_if_info*)’:
../../../src/gcc/ifcvt.c:1233:2: error: statement is indented as if it were guarded by... [-Werror=misleading-indentation]
  seq = end_ifcvt_sequence (if_info);
  ^~~

../../../src/gcc/ifcvt.c:1230:7: note: ...this ‘if’ clause, but it is not
       if (target != if_info->x)
       ^~

due to the lack of an outdent after the conditional at lines 1230-1:

  1220    if (target)
  1221      {
  1222        rtx_insn *seq = get_insns ();
  1223
  1224        if (!seq)
  1225          {
  1226            end_sequence ();
  1227            return false;
  1228          }
  1229
>>1230        if (target != if_info->x)
>>1231          noce_emit_move_insn (if_info->x, target);
  1232
>>1233          seq = end_ifcvt_sequence (if_info);
  1234
  1235          if (!seq)
  1236            return false;
  1237
  1238          emit_insn_before_setloc (seq, if_info->jump,
  1239                                   INSN_LOCATION (if_info->insn_a));
  1240          return true;
  1241      }

gcc/ChangeLog:
* ifcvt.c (noce_try_inverse_constants): Fix indentation.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231521 138bc75d-0d04-0410-961f-82ee72b054a4

Fix -Wmisleading-indentation warning in gcc/regrename.c

../../../src/gcc/regrename.c: In function ‘void scan_rtx_address(rtx_insn*, rtx_def**, reg_class, scan_actions, machine_mode, addr_space_t)’:
../../../src/gcc/regrename.c:1314:7: error: statement is indented as if it were guarded by... [-Werror=misleading-indentation]
       break;
       ^
../../../src/gcc/regrename.c:1311:5: note: ...this ‘if’ clause, but it is not
     if (!AUTO_INC_DEC)
     ^

gcc/ChangeLog:
* regrename.c (scan_rtx_address): Fix indentation.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231520 138bc75d-0d04-0410-961f-82ee72b054a4

Fix misleading indentation in gcc/fortran/io.c

Fix this warning:
../../../src/gcc/fortran/io.c: In function ‘match gfc_match_open()’:
../../../src/gcc/fortran/io.c:2003:4: error: statement is indented as if it were guarded by... [-Werror=misleading-indentation]
    if (!compare_to_allowed_values ("DELIM", delim, NULL, NULL,
    ^
../../../src/gcc/fortran/io.c:2000:2: note: ...this ‘if’ clause, but it is not
  if (!is_char_type ("DELIM", open->delim))
  ^

gcc/fortran/ChangeLog:
* io.c (gfc_match_open): Fix indentation.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231519 138bc75d-0d04-0410-961f-82ee72b054a4

Fix -Wmisleading-indentation warning in function.c

Fix this warning:
../../../src/gcc/function.c: In function ‘void locate_and_pad_parm(machine_mode, tree, int, int, int, tree, args_size*, locate_and_pad_arg_data*)’:
../../../src/gcc/function.c:4123:2: error: statement is indented as if it were guarded by... [-Werror=misleading-indentation]
  {
  ^
../../../src/gcc/function.c:4119:7: note: ...this ‘if’ clause, but it is not
       if (initial_offset_ptr->var)
       ^

gcc/ChangeLog:
* function.c (locate_and_pad_parm): Fix indentation.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231518 138bc75d-0d04-0410-961f-82ee72b054a4

Change tests to use -std=gnu++14 not -std=gnu++1y

* testsuite/experimental/memory/shared_ptr/assign/assign.cc: Replace
-std=gnu++1y with -std=gnu++14.
* testsuite/experimental/memory/shared_ptr/cast/cast.cc: Likewise.
* testsuite/experimental/memory/shared_ptr/comparison/comparison.cc:
Likewise.
* testsuite/experimental/memory/shared_ptr/cons/alias_ctor.cc:
Likewise.
* testsuite/experimental/memory/shared_ptr/cons/alloc_ctor.cc:
Likewise.
* testsuite/experimental/memory/shared_ptr/cons/copy_ctor.cc:
Likewise.
* testsuite/experimental/memory/shared_ptr/cons/copy_ctor_neg.cc:
Likewise.
* testsuite/experimental/memory/shared_ptr/cons/default_ctor.cc:
Likewise.
* testsuite/experimental/memory/shared_ptr/cons/move_ctor.cc:
Likewise.
* testsuite/experimental/memory/shared_ptr/cons/pointer_ctor.cc:
Likewise.
* testsuite/experimental/memory/shared_ptr/cons/unique_ptr_ctor.cc:
Likewise.
* testsuite/experimental/memory/shared_ptr/cons/weak_ptr_ctor.cc:
Likewise.
* testsuite/experimental/memory/shared_ptr/dest/dest.cc: Likewise.
* testsuite/experimental/memory/shared_ptr/modifiers/reset.cc:
Likewise.
* testsuite/experimental/memory/shared_ptr/modifiers/swap.cc:
Likewise.
* testsuite/experimental/memory/shared_ptr/observers/bool_conv.cc:
Likewise.
* testsuite/experimental/memory/shared_ptr/observers/operators.cc:
Likewise.
* testsuite/experimental/memory/shared_ptr/observers/owner_before.cc:
Likewise.
* testsuite/experimental/memory/shared_ptr/observers/use_count.cc:
Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231517 138bc75d-0d04-0410-961f-82ee72b054a4

Fix dejagnu directives in shared_ptr test

PR libstdc++/68825
* include/experimental/bits/shared_ptr.h (__shared_ptr, __weak_ptr,
experimental::shared_ptr, experimental::weak_ptr): Constrain
assignment operators.
* testsuite/experimental/memory/shared_ptr/cons/copy_ctor_neg.cc:
Change to a compile-only test and change dg-excess-errors to dg-error.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231516 138bc75d-0d04-0410-961f-82ee72b054a4

PR ada/48013
* gcc-interface/trans.c (empty_stmt_list_p): New predicate.
(gigi): Invoke it to compute the No_Elaboration_Code property.
(insert_code_for): Do not insert the code if it's empty.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231515 138bc75d-0d04-0410-961f-82ee72b054a4

2015-12-10  Richard Biener  <rguenther@suse.de>

* tree-ssa-structalias.c (struct variable_info): Add
is_ipa_escape_point flag.
(new_var_info): Initialize to false.
(find_func_aliases): Generate escape constraints for stores
properly in IPA mode.
(ipa_pta_execute): Compute is_ipa_escape_point for globals.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231514 138bc75d-0d04-0410-961f-82ee72b054a4

* gcc-interface/trans.c (Call_to_gnu): Remove guard for NULL_EXPR.
* gcc-interface/utils2.c (gnat_rewrite_reference) <ERROR_MARK>: Return
the reference unmodified.
<NULL_EXPR>: New case.  Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231513 138bc75d-0d04-0410-961f-82ee72b054a4

Improve generated libstdc++ API docs

* doc/doxygen/user.cfg.in: Use EXTENSION_MAPPING tag. Add new headers
to INPUT. Remove obsolete XML_SCHEMA and XML_DTD tags. Update
PREDEFINED macros. Set BRIEF_MEMBER_DESC for man-pages.
* include/backward/strstream: Correct @file comment.
* include/bits/forward_list.h: Improve Doxygen comments.
* include/bits/locale_facets_nonio.h: Likewise.
* include/bits/mutex.h: Likewise.
* include/bits/shared_ptr.h: Likewise.
* include/bits/stl_deque.h: Likewise.
* include/debug/vector (_Safe_vector): Add @brief section to comment.
* include/experimental/bits/fs_dir.h: Correct @file comment.
* include/experimental/bits/fs_fwd.h: Likewise.
* include/experimental/bits/fs_ops.h: Likewise.
* include/experimental/bits/fs_path.h: Likewise.
* include/experimental/bits/string_view.tcc: Likewise.
* include/experimental/optional: Document experimental status.
* include/experimental/string_view: Correct @file comment.
* include/ext/pb_ds/detail/bin_search_tree_/traits.hpp: Reduce
whitespace to avoid Doxygen bug.
* include/std/bitset: Remove redundant @class Doxygen command. Add
parentheses to avoid Doxygen bug.
* include/std/mutex: Improve Doxygen comments.
* include/tr2/dynamic_bitset: Add missing @param documentation.
* scripts/run_doxygen: Rename man pages for std::experimental types.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231512 138bc75d-0d04-0410-961f-82ee72b054a4

* gcc-interface/gigi.h (create_var_decl): Adjust comment.
(create_subprog_decl): Likewise.
* gcc-interface/utils.c (create_var_decl): Likewise.
(create_subprog_decl): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231511 138bc75d-0d04-0410-961f-82ee72b054a4

[ARC] Add support for atomic memory built-in. Add atomic.md file.

gcc/

2015-12-10  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/atomic.md: Add new file.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231510 138bc75d-0d04-0410-961f-82ee72b054a4

[ARC] Add support for atomic memory built-in.

gcc/

2015-12-10  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc-protos.h (arc_expand_atomic_op): Prototype.
(arc_split_compare_and_swap): Likewise.
(arc_expand_compare_and_swap): Likewise.
* config/arc/arc.c (arc_init): Check usage atomic option.
(arc_pre_atomic_barrier): New function.
(arc_post_atomic_barrier): Likewise.
(emit_unlikely_jump): Likewise.
(arc_expand_compare_and_swap_qh): Likewise.
(arc_expand_compare_and_swap): Likewise.
(arc_split_compare_and_swap): Likewise.
(arc_expand_atomic_op): Likewise.
* config/arc/arc.h (TARGET_CPU_CPP_BUILTINS): New C macro.
(ASM_SPEC): Enable mlock option when matomic is used.
* config/arc/arc.md (UNSPEC_ARC_MEMBAR): Define.
(VUNSPEC_ARC_CAS): Likewise.
(VUNSPEC_ARC_LL): Likewise.
(VUNSPEC_ARC_SC): Likewise.
(VUNSPEC_ARC_EX): Likewise.
* config/arc/arc.opt (matomic): New option.
* config/arc/constraints.md (ATO): New constraint.
* config/arc/predicates.md (mem_noofs_operand): New predicate.
* doc/invoke.texi: Document -matomic.
* config/arc/atomic.md: New file.

gcc/testsuite

2015-12-10  Claudiu Zissulescu  <claziss@synopsys.com>

* lib/target-supports.exp (check_effective_target_arc_atomic): New
function.
(check_effective_target_sync_int_long): Add checks for ARC atomic
feature.
(check_effective_target_sync_char_short): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231509 138bc75d-0d04-0410-961f-82ee72b054a4

2015-12-10  Richard Biener  <rguenther@suse.de>

PR tree-optimization/68817
* tree-vect-slp.c (vect_attempt_slp_rearrange_stmts): Detect
gaps early.

* gfortran.dg/pr68817.f90: New testcase.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231508 138bc75d-0d04-0410-961f-82ee72b054a4

Revert [testsuite][ARM target attributes] Fix effective_target tests

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231507 138bc75d-0d04-0410-961f-82ee72b054a4

* alias.c (get_alias_set): Add cut-off for recursion.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231505 138bc75d-0d04-0410-961f-82ee72b054a4

fix typo in date format

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231504 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/

* tree-vect-stmts.c (vectorizable_assignment): Support
useless boolean conversion.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231503 138bc75d-0d04-0410-961f-82ee72b054a4

Correct previous ChangeLog (targets is correct, not hosts)

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231501 138bc75d-0d04-0410-961f-82ee72b054a4

[install.texi] Add note against GNAT 4.8 on ARM targets

* doc/install/texi: Add note against GNAT 4.8 on ARM hosts.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231500 138bc75d-0d04-0410-961f-82ee72b054a4

PR tree-optimization/68785
* gimple-fold.c (fold_ctor_reference): Pass return value from
native_encode_expr to native_interpret_expr.
* tree-ssa-sccvn.c (fully_constant_vn_reference_p): Likewise.

* gcc.dg/pr68785.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231499 138bc75d-0d04-0410-961f-82ee72b054a4

2015-12-10  Richard Biener  <rguenther@suse.de>

PR ipa/68331
* tree-ssa-structalias.c (set_uids_in_ptset): Add fndecl
parameter and make vars_contains_nonlocal properly have
function-scope semantics in IPA mode.
(find_what_var_points_to): Add fndecl parameter.
(find_what_p_points_to): Likewise.
(pt_solution_includes_global): Remove IPA PTA early out.
(compute_points_to_sets): Adjust.
(ipa_pta_execute): Likewise.  Clear final_solutions after
each function.

* gcc.dg/torture/ipa-pta-3.c: New testcase.
* g++.dg/ipa/ipa-pta-1.C: Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231498 138bc75d-0d04-0410-961f-82ee72b054a4

Fix warnings from including fdl.texi into gnat-style.texi

2015-12-10  Tom de Vries  <tom@codesourcery.com>

PR ada/65102
* doc/include/fdl.texi: Add nodefaultgnufreedocumentationlicensenode
ifdef to allow disabling default @node GNU Free Documentation License.

* gnat-style.texi: Set nodefaultgnufreedocumentationlicensenode and
define @node GNU Free Documentation License locally.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231497 138bc75d-0d04-0410-961f-82ee72b054a4

2015-12-10  Richard Biener  <rguenther@suse.de>

* tree-ssa-structalias.c (create_function_info_for): Add missing
constraint from nonlocal for DECL_RESULT.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231496 138bc75d-0d04-0410-961f-82ee72b054a4

2015-12-10  Richard Biener  <rguenther@suse.de>

* tree-if-conv.c: Include params.h.
(ifcvt_memrefs_wont_trap): Use PARAM_ALLOW_STORE_DATA_RACES
instead of flag_tree_loop_if_convert_stores to guard cases
we'd introduce store-data-races.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231495 138bc75d-0d04-0410-961f-82ee72b054a4

2015-12-10  Richard Biener  <rguenther@suse.de>

PR ipa/68721
* ipa-split.c (split_function): Record return value properly
when the split part doesn't set it.

* gcc.dg/torture/pr68721.c: New testcase.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231494 138bc75d-0d04-0410-961f-82ee72b054a4

2015-12-10  Richard Biener  <rguenther@suse.de>

PR tree-optimization/68806
* tree-vect-loop.c (vect_analyze_loop_2): Properly detect
reduction chains and ignore SLP reductions.

* gcc.dg/torture/pr68806.c: New testcase.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231493 138bc75d-0d04-0410-961f-82ee72b054a4

2015-12-10  Richard Biener  <rguenther@suse.de>

* tree-if-conv.c (if_convertible_loop_p_1): Do not compute
dependences.
(if_convertible_loop_p): Adjust.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231492 138bc75d-0d04-0410-961f-82ee72b054a4

Remove invalid assert in find_func_aliases_for_builtin_call

2015-12-10  Tom de Vries  <tom@codesourcery.com>

* tree-ssa-structalias.c (find_func_aliases_for_builtin_call): Remove
invalid assert.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231491 138bc75d-0d04-0410-961f-82ee72b054a4

Fix memory leaks in tree-vect-data-refs.c

* tree-vect-data-refs.c: Free an overwritten dataref.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231490 138bc75d-0d04-0410-961f-82ee72b054a4

* config/pa/fptr.c (__canonicalize_funcptr_for_compare): Remove code
to initialize call to __dl_fixup once.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231486 138bc75d-0d04-0410-961f-82ee72b054a4

PR 68115/libfortran
* configure.ac: Set libbacktrace_cv_sys_sync to no on hppa*-*-hpux*.
* configure: Regenerate.
* elf.c (backtrace_initialize): Cast __sync_bool_compare_and_swap call
to void.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231485 138bc75d-0d04-0410-961f-82ee72b054a4