re PR target/67089 (Integer overflow checks not optimized on x86/x86_64)

PR target/67089
* tree-ssa-math-opts.c (uaddsub_overflow_check_p,
match_uaddsub_overflow): New functions.
(pass_optimize_widening_mul::execute): Call match_uaddsub_overflow.

* gcc.dg/pr67089-1.c: New test.
* gcc.dg/pr67089-2.c: New test.
* gcc.dg/pr67089-3.c: New test.
* gcc.dg/pr67089-4.c: New test.
* gcc.dg/pr67089-5.c: New test.
* gcc.dg/pr67089-6.c: New test.
* gcc.dg/pr67089-7.c: New test.

From-SVN: r230856

re PR tree-optimization/68492 (internal compiler error: in vect_is_simple_use, at tree-vect-stmts.c:8266)

2015-11-25  Richard Biener  <rguenther@suse.de>

PR tree-optimization/68492
* tree-vect-slp.c (vect_build_slp_tree): Consistently build up
op from scalars after operand swapping.

From-SVN: r230855

re PR tree-optimization/68502 ([i686] spec2000/179.art runfails after r222914)

2015-11-25  Richard Biener  <rguenther@suse.de>

PR tree-optimization/68502
* tree-vect-data-refs.c (vect_analyze_group_access_1): Restore
check that the step is a multiple of the type size.

* gcc.dg/vect/pr68502-1.c: New testcase.
* gcc.dg/vect/pr68502-2.c: Likewise.

From-SVN: r230854

2015-11-24  Michael Collison  <michael.collison@linaro.org>

* config/aarch64/aarch64-simd.md (widen_ssum, widen_usum)
(aarch64_<ANY_EXTEND:su><ADDSUB:optab>w<mode>_internal): New patterns
* config/aarch64/iterators.md (Vhalf, VDBLW): New mode attributes.
* gcc.target/aarch64/saddw-1.c: New test.
* gcc.target/aarch64/saddw-2.c: New test.
* gcc.target/aarch64/uaddw-1.c: New test.
* gcc.target/aarch64/uaddw-2.c: New test.
* gcc.target/aarch64/uaddw-3.c: New test.
* lib/target-support.exp
(check_effective_target_vect_widen_sum_hi_to_si_pattern):
Add aarch64 to list of support targets.

From-SVN: r230853

Daily bump.

From-SVN: r230850

Fix typos from last checkin.

From-SVN: r230847

frame-header-4.c: New test.

2015-11-24  Steve Ellcey  <sellcey@imgtec.com>

* gcc.target/mips/frame-header-4.c: New test.

From-SVN: r230846

frame-header-opt.c (gate): Check for optimize > 0.

2015-11-24  Steve Ellcey  <sellcey@imgtec.com>

* frame-header-opt.c (gate): Check for optimize > 0.
(has_inlined_assembly): New function.
(needs_frame_header_p): Remove is_leaf_function check,
add argument type check.
(callees_functions_use_frame_header): Add is_leaf_function
and has_inlined_assembly calls..
(set_callers_may_not_allocate_frame): New function.
(frame_header_opt): Add is_leaf_function call, add
set_callers_may_not_allocate_frame call.
* config/mips/mips.c (mips_compute_frame_info): Add check
to see if callee saved regs can be put in frame header.
(mips_expand_prologue): Add check to see if step1 is zero,
fix cfa restores when using frame header to store regs.
(mips_can_use_return_insn): Check to see if registers are
stored in frame header.
* config/mips/mips.h (machine_function): Add
callers_may_not_allocate_frame and
use_frame_header_for_callee_saved_regs fields.

From-SVN: r230845

shrink-wrap: Fix thinko (PR68520)

Part of the shrink-wrapping algorithm has this comment:

  /* Now see if we can put the prologue at the start of PRO.  Putting it
     there might require duplicating a block that cannot be duplicated,
     or in some cases we cannot insert the prologue there at all.  If PRO
     wont't do, try again with the immediate dominator of PRO, and so on.

     The blocks that need duplicating are those reachable from PRO but
     not dominated by it.  We keep in BB_WITH a bitmap of the blocks
     reachable from PRO that we already found, and in VEC a stack of
     those we still need to consider (to find successors).  */

Two of the cases that push to that stack do not actually check the
bitmap first.  Either I thought those blocks could not be on the stack
already, or more likely I didn't think and it just didn't crash during
any testing.  But of course those blocks *can* already be on the stack
(if you have a hideous loop structure), and then we end up with the
same block on the stack more than once.  This is harmless, except that
(like in the PR) this can overflow the stack.

This fixes it, by doing the necessary bitmap checks before pushing.

PR rtl-optimization/68520
* shrink-wrap.c (try_shrink_wrapping): Don't push a block to VEC if
its bit was already set in BB_WITH.

From-SVN: r230843

c-parser.c (c_parser_oacc_declare): Replace "ifdef ENABLE_OFFLOADING" with "if (ENABLE_OFFLOADING)".

gcc/c/
* c-parser.c (c_parser_oacc_declare): Replace "ifdef ENABLE_OFFLOADING"
with "if (ENABLE_OFFLOADING)".
gcc/cp/
* parser.c (cp_parser_oacc_declare): replace "ifdef enable_offloading"
with "if (enable_offloading)".

From-SVN: r230842

alias.c (get_alias_set): Before checking TYPE_ALIAS_SET_KNOWN_P double check that type is main variant.

* alias.c (get_alias_set): Before checking TYPE_ALIAS_SET_KNOWN_P
double check that type is main variant.
* tree.c (build_variant_type_copy): Clear TYPE_ALIAS_SET when producing
variant.
(verify_type_variant): Verify that variants have no
TYPE_ALIAS_SET_KNOWN_P set
* tree-streamer-out.c (pack_ts_type_common_value_fields): Reorder
streaming so constant fields come first; stream TYPE_ALIAS_SET==0
only for main variants; stream TYPE_ALIAS_SET as a bit.
* tree-streamer-in.c (unpack_ts_type_common_value_fields): Update
accordingly.

From-SVN: r230838

tree.c (make_vector_type): Properly compute canonical type of the main variant.

* tree.c (make_vector_type): Properly compute canonical type of the
main variant.
(verify_type): Verify that TYPE_CANONICAL of TYPE_MAIN_VARIANT is
a main variant.

From-SVN: r230837

nvptx.c (maybe_split_mode): Return new mode or VOIDmode, don't alter incoming mode.

* config/nvptx/nvptx.c (maybe_split_mode): Return new mode or
VOIDmode, don't alter incoming mode.
(nvptx_split_reg_p): Delete.
(write_one_arg, walk_args_for_param, nvptx_declare_function_name,
write_func_decl_from_insn, nvptx_output_call_insn): Adjust
maybe_split_mode calls.
(nvptx_print_operand): Use maybe_split_mode.

From-SVN: r230836

lto-streamer-in.c (lto_read_body_or_constructor): Set TYPE_CANONICAL only for types where LTO sets them.

* lto-streamer-in.c (lto_read_body_or_constructor): Set TYPE_CANONICAL
only for types where LTO sets them.
* tree.c (build_array_type_1): Do ont set TYPE_CANONICAL for LTO.
(make_vector_type): Likewise.
(gimple_canonical_types_compatible_p): Use canonical_type_used_p.
* tree.h (canonical_type_used_p): New inline.
* alias.c (get_alias_set): Handle structural equality for all
types that pass canonical_type_used_p.
(record_component_aliases): Look through all types with
record_component_aliases for possible pointers; sanity check that
the alias sets match.

* lto.c (iterative_hash_canonical_type): Recruse for all types
which pass !canonical_type_used_p.
(gimple_register_canonical_type_1): Sanity check we do not compute
canonical type of anything with !canonical_type_used_p.
(gimple_register_canonical_type): Skip all types that are
!canonical_type_used_p

From-SVN: r230835

rs6000.md (lround<mode>di2): Remove constraints.

2015-11-24  Michael Meissner  <meissner@linux.vnet.ibm.com>

* config/rs6000/rs6000.md (lround<mode>di2): Remove constraints.

From-SVN: r230834

tree.c (free_node): New function.

* tree.c (free_node): New function.
(type_hash_canon): Use it.
* tree.h (free_node): Declare.
* lto.c (unify_scc): Use free_node.

From-SVN: r230833

re PR fortran/68486 (187.facerec in SPEC CPU 2000 failed to build)

2015-11-24  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/68486
* simplify.c (gfc_simplify_cshift): Allow all EXPR_*.

2015-11-24  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/68486
* gfortran.dg/simplify_cshift_3.f90

From-SVN: r230832

fix ChangeLog

From-SVN: r230831

fix ChangeLog

From-SVN: r230830

rs6000.md (UNSPEC_XSRDPI): New unspec.

2015-11-24  David Edelsohn  <dje.gcc@gmail.com>
    Michael Meissner  <meissner@linux.vnet.ibm.com>

* config/rs6000/rs6000.md (UNSPEC_XSRDPI): New unspec.
(Fv2): New mode attribute to be used when ISA 2.06 instructions
are used on SF/DF values.
(abs<mode>2_fpr): Use <Fv2> instead of <Fv>.
(nabs<mode>2_fpr): Likewise.
(neg<mode>2_fpr): Likewise.
(copysign<mode>3_fcpsgn): Likewise.
(smax<mode>3_vsx): Likewise.
(smin<mode>3_vsx): Likewise.
(floatsi<mode>2_lfiwax): Likewise.
(floatunssi<mode>2_lfiwz): Likewise.
(fctiwz_<mode>): Likewise.
(fctiwuz_<mode>): Likewise.
(btrunc<mode>2): Likewise.
(ceil<mode>2): Likewise.
(floor<mode>2): Likewise.
(xsrdpi<mode>): Add support for the lround function.
(lround<mode>2): Likewise.

Co-Authored-By: Michael Meissner <meissner@linux.vnet.ibm.com>
From-SVN: r230829

re PR c++/68278 (internal compiler error with C++14 polymorphic lambda and type alias)

2015-11-24  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/68278
* g++.dg/cpp1y/pr68278.C: New.

From-SVN: r230828

re PR c++/68388 (incomplete type bug when using decltype)

2015-11-24  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/68388
* g++.dg/cpp1y/pr68388.C: New.

From-SVN: r230827

fix PR67984: check for constants in rename map

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>
From-SVN: r230826

move all declarations to a same .h file

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>
From-SVN: r230825

DWARF: materialize subprogram renamings in Ada as imported declarations

... so that debugger users can reference them instead of the renamed
subprograms.  This is in accordance with the DWARF specification: the
section 3.2.3 (Imported (or Renamed) Declaration Entities) allows
DW_TAG_imported_declaration DIEs to be used "as a general means to
rename or provide an alias for an entity regardless of the context in
which the importing declaration or the imported entity occur." (wording
from the DWARFv3 and DWARFv4 specifications, allowed in DWARFv2).

gcc/ada/ChangeLog:

* gcc-interface/utils.c (gnat_write_global_declarations): Output
debugging information for top-level imported declarations.

gcc/ChangeLog:

* dwarf2out.c (gen_decl_die): Generate DW_TAG_imported_* instead
of DW_TAG_namespace for IMPORTED_DECL declarations.  Call
dwarf2out_imported_module_or_decl_1 for all DWARF versions as
this function already takes care of checking what it can emit.

Bootstrapped, regtested and checked with GDB's testsuite on
x86_64-linux.

From-SVN: r230821

[AArch64] Documentation fix for -fpic

gcc/
* doc/invoke.texi (-fpic): Add the AArch64 limit.
(-fPIC): Add AArch64.

From-SVN: r230819

re PR rtl-optimization/68392 (ICE: SIGSEGV in update_uses (fwprop.c:896) with -fno-checking)

PR rtl-optimization/68392
* g++.dg/pr68392.C: New test.

From-SVN: r230818

Allow pass_lim to run outside pass_tree_loop

2015-11-24  Tom de Vries  <tom@codesourcery.com>

* tree-ssa-loop-im.c (tree_ssa_lim): Make static.
(pass_lim::execute): Allow to run outside pass_tree_loop.

From-SVN: r230815

[PATCH][AArch64] Improve add immediate expansion

gcc/

* gcc/config/aarch64/aarch64.md (add<mode>3):
Block early expansion into 2 add instructions.
(add<mode>3_pluslong): New pattern to combine complex
immediates into 2 additions.

From-SVN: r230814

rs6000: Fix for and_operand oversight (PR68332, PR67677)

Calling rs6000_is_valid_and_mask on a reg instead of on a const_int is
not a good idea, as PR68332 and PR67677 as well as testing with
--enable-checking=yes,rtl show.  Fix this.

PR target/66217
PR target/67677
PR target/68332
* config/rs6000/predicates.md (and_operand): Check that the operand
is a const_int before calling rs6000_is_valid_and_mask.

From-SVN: r230811

* gcc.dg/sso/dump.h: Force IO to be putchar function call on nvptx.

From-SVN: r230810

Testcase for PR rtl-optimization/68381

PR rtl-optimization/68381
* gcc.c-torture/execute/pr68381.c: New test.

From-SVN: r230809

Handle C++11 <math.h> overloads on Solaris 12

* acinclude.m4 (GLIBCXX_CHECK_MATH11_PROTO): New test.
* configure.ac: Use it.
* configure: Regenerate.
* config.h.in: Regenerate.

* include/c_global/cmath [__cplusplus >= 201103L]
(std::fpclassify): Wrap in !__CORRECT_ISO_CPP11_MATH_H_PROTO.
(std::isfinite): Likewise.
(std::isinf): Likewise.
(std::isnan): Likewise.
(std::isnormal): Likewise.
(std::signbit): Likewise.
(std::isgreater): Likewise.
(std::isgreaterequal): Likewise.
(std::isless): Likewise.
(std::islessequal): Likewise.
(std::islessgreater): Likewise.
(std::isunordered): Likewise.
(std::acosh): Likewise.
(std::asinh): Likewise.
(std::atanh): Likewise.
(std::cbrt): Likewise.
(std::copysign): Likewise.
(std::erf): Likewise.
(std::erfc): Likewise.
(std::exp2): Likewise.
(std::expm1): Likewise.
(std::fdim): Likewise.
(std::fma): Likewise.
(std::fmax): Likewise.
(std::fmin): Likewise.
(std::hypot): Likewise.
(std::ilogb): Likewise.
(std::lgamma): Likewise.
(std::llrint): Likewise.
(std::llround): Likewise.
(std::log1p): Likewise.
(std::log2): Likewise.
(std::logb): Likewise.
(std::lrint): Likewise.
(std::lround): Likewise.
(std::nearbyint): Likewise.
(std::nextafter): Likewise.
(std::nexttoward): Likewise.
(std::remainder): Likewise.
(std::remquo): Likewise.
(std::rint): Likewise.
(std::round): Likewise.
(std::scalbln): Likewise.
(std::scalbn): Likewise.
(std::tgamma): Likewise.
(std::trunc): Likewise.
* include/tr1/cmath [_GLIBCXX_USE_C99_MATH_TR1] (std::tr1::acosh):
Wrap in !__CORRECT_ISO_CPP11_MATH_H_PROTO.
(std::tr1::asinh): Likewise.
(std::tr1::atanh): Likewise.
(std::tr1::cbrt): Likewise.
(std::tr1::copysign): Likewise.
(std::tr1::erf): Likewise.
(std::tr1::erfc): Likewise.
(std::tr1::exp2): Likewise.
(std::tr1::expm1): Likewise.
(std::tr1::fabs): Likewise.
(std::tr1::fdim): Likewise.
(std::tr1::fma): Likewise.
(std::tr1::fmax): Likewise.
(std::tr1::fmin): Likewise.
(std::tr1::hypot): Likewise.
(std::tr1::ilogb): Likewise.
(std::tr1::lgamma): Likewise.
(std::tr1::llrint): Likewise.
(std::tr1::llround): Likewise.
(std::tr1::log1p): Likewise.
(std::tr1::log2): Likewise.
(std::tr1::logb): Likewise.
(std::tr1::lrint): Likewise.
(std::tr1::lround): Likewise.
(std::tr1::nearbyint): Likewise.
(std::tr1::nextafter): Likewise.
(std::tr1::nexttoward): Likewise.
(std::tr1::remainder): Likewise.
(std::tr1::remquo): Likewise.
(std::tr1::rint): Likewise.
(std::tr1::scalbln): Likewise.
(std::tr1::scalbn): Likewise.
(std::tr1::tgamma): Likewise.
(std::tr1::trunc): Likewise.
(std::tr1::pow): Likewise.

* testsuite/26_numerics/headers/cmath/c99_classification_macros_c.cc:
Restrict dg-xfail-if, dg-excess-errors to *-*-solaris2.1[01]*.

From-SVN: r230807

[AArch64][v2] Improve comparison with complex immediates followed by branch/cset

* config/aarch64/aarch64.md (*condjump): Rename to...
(condjump): ... This.
(*compare_condjump<mode>): New define_insn_and_split.
(*compare_cstore<mode>_insn): Likewise.
(*cstore<mode>_insn): Rename to...
(cstore<mode>_insn): ... This.
* config/aarch64/iterators.md (CMP): Handle ne code.
* config/aarch64/predicates.md (aarch64_imm24): New predicate.

* gcc.target/aarch64/cmpimm_branch_1.c: New test.
* gcc.target/aarch64/cmpimm_cset_1.c: Likewise.

From-SVN: r230805

Move ptrace.h to appropriate place.

libsanitizer/

* include/system/linux/asm/ptrace.h: Move to ...
* include/system/asm/ptrace.h: ... this.

From-SVN: r230804

Fix PR68497 (ICE with -fno-checking)

gcc/

PR target/68497
* config/i386/i386.c (output_387_binary_op): Fix assertion for
-fno-checking case.

gcc/testsuite/

PR target/68497
* gcc.target/i386/pr68497.c: New test.

From-SVN: r230803

remove val_ssa_equiv_hash_traits

gcc/ChangeLog:

2015-11-24  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* tree-ssa-uncprop.c (struct val_ssa_equiv_hash_traits): Remove.
(val_ssa_equiv_hash_traits::remove): Likewise.
(pass_uncprop::execute): Adjust.

From-SVN: r230802

destroy values as well as keys when removing them from hash maps

gcc/ChangeLog:

2015-11-24  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* hash-map-traits.h (simple_hashmap_traits ::remove): call
destructors on values that are being removed.
* mem-stats.h (hash_map): Pass type of values to
simple_hashmap_traits.
* tree-sra.c (sra_deinitialize): Remove work around for hash
maps not destructing values.
* genmatch.c (sinfo_hashmap_traits): Adjust.
* tree-ssa-uncprop.c (val_ssa_equiv_hash_traits): Likewise.

From-SVN: r230801

[AARCH64][PATCH 3/3] Adding tests to check proper error reporting of out of...

[AARCH64][PATCH 3/3] Adding tests to check proper error reporting of out
of bounds accesses to vmulx_lane* NEON intrinsics

gcc/testsuite/

* gcc.target/aarch64/advsimd-intrinsics/vmulx_lane_f32_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulx_lane_f64_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulx_laneq_f32_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulx_laneq_f64_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulxd_lane_f64_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulxd_laneq_f64_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulxq_lane_f32_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulxq_lane_f64_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulxq_laneq_f32_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulxq_laneq_f64_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulxs_lane_f32_indices_1.c:
New.
* gcc.target/aarch64/advsimd-intrinsics/vmulxs_laneq_f32_indices_1.c:
New.

From-SVN: r230800

[cfgloop] PR middle-end/68375: Restructure get_loop_body_in_bfs_order to handle loops with only a header

PR middle-end/68375
* cfgloop.c (get_loop_body_in_bfs_order): Restructure loop to avoid
bogus assertion.

* gcc.dg/pr68375.c: New test.

From-SVN: r230798

re PR target/68483 (gcc 5.2: suboptimal code compared to 4.9)

PR target/68483
* tree-vect-generic.c (lower_vec_perm): If VEC_PERM_EXPR
is valid vec_shr pattern, don't lower it even if can_vec_perm_p
returns false.
* optabs.c (shift_amt_for_vec_perm_mask): Return NULL_RTX
whenever first is nelt or above.  Don't mask expected with
2 * nelt - 1.

* gcc.target/i386/pr68483-1.c: New test.
* gcc.target/i386/pr68483-2.c: New test.

From-SVN: r230797

re PR c/68337 ([MPX] memcpy() for arrays with function pointers results in huge resource usage and binaries)

gcc/

PR c/68337
* gimple-fold.c: Include ipa-chkp.h.
(gimple_fold_builtin_memory_op): Don't fold call if we
are going to instrument it and it may copy pointers.

gcc/testsuite/

PR c/68337
* gcc.target/i386/mpx/pr68337-1.c: New test.
* gcc.target/i386/mpx/pr68337-2.c: New test.

From-SVN: r230796

[RTL-ree] PR rtl-optimization/68194: Restrict copy instruction in presence of conditional moves

PR rtl-optimization/68194
PR rtl-optimization/68328
PR rtl-optimization/68185
* ree.c (combine_reaching_defs): Reject copy_needed case if
copies_list is not empty.

* gcc.c-torture/execute/pr68185.c: New test.
* gcc.c-torture/execute/pr68328.c: Likewise.

From-SVN: r230795

sem_ch3.adb, [...]: Minor reformatting, rewording, and typo corrections.

2015-11-24  Gary Dismukes  <dismukes@adacore.com>

* sem_ch3.adb, sem_type.adb, sem_ch7.adb, sem_ch9.adb, checks.adb,
sem_prag.adb, contracts.adb, g-strhas.ads, sem_ch6.adb: Minor
reformatting, rewording, and typo corrections.

From-SVN: r230794

re PR middle-end/68221 (libgomp reduction-11/12 failures)

2015-11-24  Richard Biener  <rguenther@suse.de>

PR middle-end/68221
* tree-ssa-sccvn.c (copy_reference_ops_from_ref): Properly
use mem_ref_offset.

From-SVN: r230793

decl.c (gnat_to_gnu_entity): In ASIS mode, do a minimal translation for root types with discriminants.

* gcc-interface/decl.c (gnat_to_gnu_entity) <Concurrent types>: In
ASIS mode, do a minimal translation for root types with discriminants.
* gcc-interface/trans.c (gnat_to_gnu) <N_Subunit>: Move around.
<N_Entry_Body, N_Protected_Body, N_Task_Body>: Likewise.  In ASIS mode,
process the declarations attached to the body.

From-SVN: r230792

trans.c (gnat_to_gnu): In type_annotate_only mode, do not build a NULL_EXPR for an N_Expanded_Name.

* gcc-interface/trans.c (gnat_to_gnu): In type_annotate_only mode, do
not build a NULL_EXPR for an N_Expanded_Name.

From-SVN: r230791

Fix libsanitizer build with old kernel headers on ARM after r230739.

libsanitizer/

* include/system/linux/asm/ptrace.h: New header.

From-SVN: r230790

decl.c (is_cplusplus_method): Check that the type of the first parameter (indirectly) has C++ convention too.

* gcc-interface/decl.c (is_cplusplus_method): Check that the type of
the first parameter (indirectly) has C++ convention too.

From-SVN: r230788

combine: Handle aborts in is_parallel_of_n_reg_sets (PR68381)

Some users of is_parallel_of_n_reg_sets disregard the clobbers in a
parallel after it has returned "yes, this is a parallel of N sets and
maybe some clobbers".  But combine uses a clobber of const0_rtx to
indicate substitution failure, so this leads to disaster.

Fix this by checking for such special clobbers in is_parallel_of_n_reg_sets.

PR rtl-optimization/68381
* combine.c (is_parallel_of_n_reg_sets): Return false if the pattern
is poisoned.

From-SVN: r230786

[PATCH] Fix invalid redundant extension elimination for rl78 port

* ree.c (add_removable_extension): Avoid mis-optimizing cases where
the source/dest of the target extension require a different number of
hard registers.
(combine_set_extension): Remove #if 0 code.

Co-Authored-By: Jeff Law <law@redhat.com>
From-SVN: r230785

* gcc.c-torture/execute/lto-tbaa-1.c: New testcase.

From-SVN: r230784

Daily bump.

From-SVN: r230783

Fix missing ChangeLog entry for Graphite head files fix.

From-SVN: r230780

fix PR68314: revert all patches touching the construction of the original schedule

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>
From-SVN: r230778

re PR go/68496 ([libgo] reflect test fails on Linux x86-64)

PR go/68496
    reflect: Allocate space for FFI functions returning a zero-sized type.

    The libffi library does not understand zero-sized types.  We represent
    them as a struct with a single field of type void.  If such a type is
    returned from a function, libffi will copy 1 byte of data.  Allocate
    space for that byte, although we won't use it.

    Fixes https://gcc.gnu.org/PR68496.

    Reviewed-on: https://go-review.googlesource.com/17175

From-SVN: r230776

Fix PR objc/68438 (uninitialized source ranges)

gcc/c/ChangeLog:
PR objc/68438
* c-parser.c (c_parser_postfix_expression): Set up source ranges
for various Objective-C constructs: Class.name syntax,
@selector(), @protocol(), @encode(), and [] message syntax.

gcc/testsuite/ChangeLog:
PR objc/68438
* objc.dg/plugin: New subdirectory.
* objc.dg/plugin/diagnostic-test-expressions-1.m: New test file.
* objc.dg/plugin/plugin.exp: New file, based on
gcc.dg/plugin/plugin.exp.

From-SVN: r230775

2015-11-23  Matthias Klose  <doko@ubuntu.com>

        * Imported zlib 1.2.8; merged local changes.

From-SVN: r230774

fix PR68493: bail out when codegen_error is set

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>
From-SVN: r230772

fix PR68279: bail out when scev gets instantiated to not_known

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>
From-SVN: r230771

call update_ssa once

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>
From-SVN: r230770

re PR tree-optimization/68455 (ICE: tree check: expected integer_cst, have plus_expr in decompose, at tree.h:5123)

PR tree-optimization/68455
* tree-vrp.c (extract_range_from_binary_expr_1): Don't call
extract_range_from_multiplicative_op_1 on symbolic ranges.

* gcc.dg/tree-ssa/pr68455.c: New test.

From-SVN: r230768

Add uaddv4_optab and usubv4_optab

PR target/67089
     * optabs.def (uaddv4_optab, usubv4_optab): New.
     * internal-fn.c (expand_addsub_overflow): Use uaddv4_optab
     and usubv4_optab in the u +- u -> u case.
     * doc/md.texi (Standard Names): Document addv{m}4, subv{m}4,
     mulv{m}4, uaddv{m}4, usubv{m}4, umulv{m}4.

     * config/i386/i386.md (uaddv<SWI>4, usubv<SWI>4): New.

From-SVN: r230767

re PR tree-optimization/68465 (pass_lim doesn't detect identical loop entry conditions)

2015-11-23  Richard Biener  <rguenther@suse.de>

PR tree-optimization/68465
* tree-ssa-sccvn.c (sccvn_dom_walker::before_dom_children):
Also record equalities from multiple predecessor blocks if
only one non-backedge exists.

* gcc.dg/tree-ssa/ssa-fre-52.c: New testcase.

From-SVN: r230764

[ARM] PR target/68059 libgcc should not use __write for printing fatal error

libgcc/
PR target/68059
* config/arm/linux-atomic-64bit.c (__write): Rename to...
(write): ...this and fix the return type.

From-SVN: r230762

[AArch64] PR target/68363 Check that argument is real INSN in aarch64_madd_needs_nop

PR target/68363
* config/aarch64/aarch64.c (aarch64_madd_needs_nop): Reject arguments
that are not INSN_P.

* gcc.target/aarch64/pr68363_1.c: New test.

From-SVN: r230760

Correct graphite*.c ISL header file inclusion order.

* system.h: Don't poison calloc and strdup if USES_ISL is defined.
* graphite-dependences.c: Define USES_ISL.  Include ISL header files
after GCC header files and before graphite header files.
* graphite-dependences.c: Same.
* graphite-isl-ast-to-gimple.c: Same.
* graphite-optimize-isl.c: Same.
* graphite-poly.c: Same.
* graphite-scop-detection.c: Same.
* graphite-sese-to-poly.c: Same.
* graphite.c: Same.

From-SVN: r230759

[AARCH64] Adding constant folding for __builtin_fmulx* with scalar 32 and 64 bit arguments

gcc/

* config/aarch64/aarch64-builtins.c (aarch64_gimple_fold_builtin): Added
constant folding.

gcc/testsuite/

* gcc.target/aarch64/simd/vmulx.x: New.
* gcc.target/aarch64/simd/vmulx_f64_2.c: Likewise.
* gcc.target/aarch64/simd/vmulxd_f64_2.c: Likewise.
* gcc.target/aarch64/simd/vmulxs_f32_2.c: Likewise.

From-SVN: r230758

re PR c++/68001 ([cilkplus] ICE in cp_gimplify_expr, at cp/cp-gimplify.c:760)

PR c++/68001

gcc/c-family
PR c++/68001
* c-gimplify.c (c_gimplify_expr): Stop the process if see an error.
* cilk.c (recognize_spawn): Determine location in a more precise
way.
gcc/cp
* cp-gimplify.c (cp_gimplify_expr): Stop the process if see an error.
gcc/testsuite
* g++.dg/cilk-plus/CK/pr68001.cc: New test.

From-SVN: r230755

[Patch] Drop constant overflow flag in adjust_range_with_scev when possible

2015-11-23  Richard Biener  <rguenth@gcc.gnu.com>
            Jiong Wang  <jiong.wang@arm.com>

gcc/
  PR tree-optimization/68317
  PR tree-optimization/68326
  * tree-vrp.c (adjust_range_with_scev): Call drop_tree_overflow if the
  final min and max are not infinity.

gcc/testsuite/
  * gcc.dg/pr68317.c: New testcase.

From-SVN: r230754

system-aix.ads: Add Frontend_Exceptions flag.

2015-11-23  Olivier Hainque  <hainque@adacore.com>

* system-aix.ads: Add Frontend_Exceptions flag.
* system-aix64.ads: Likewise.
* system-darwin-ppc.ads: Likewise.
* system-darwin-ppc64.ads: Likewise.
* system-darwin-x86.ads: Likewise.
* system-darwin-x86_64.ads: Likewise.
* system-dragonfly-x86_64.ads: Likewise.
* system-freebsd-x86.ads: Likewise.
* system-freebsd-x86_64.ads: Likewise.
* system-hpux-ia64.ads: Likewise.
* system-hpux.ads: Likewise.
* system-linux-alpha.ads: Likewise.
* system-linux-armeb.ads: Likewise.
* system-linux-armel.ads: Likewise.
* system-linux-hppa.ads: Likewise.
* system-linux-ia64.ads: Likewise.
* system-linux-mips.ads: Likewise.
* system-linux-mips64el.ads: Likewise.
* system-linux-mipsel.ads: Likewise.
* system-linux-ppc.ads: Likewise.
* system-linux-ppc64.ads: Likewise.
* system-linux-s390.ads: Likewise.
* system-linux-s390x.ads: Likewise.
* system-linux-sh4.ads: Likewise.
* system-linux-sparc.ads: Likewise.
* system-linux-sparcv9.ads: Likewise.
* system-linux-x86.ads: Likewise.
* system-linux-x86_64.ads: Likewise.
* system-mingw-x86_64.ads: Likewise.
* system-mingw.ads: Likewise.
* system-rtems.ads: Likewise.
* system-solaris-sparc.ads: Likewise.
* system-solaris-sparcv9.ads: Likewise.
* system-solaris-x86.ads: Likewise.
* system-solaris-x86_64.ads: Likewise.
* system-vxworks-arm.ads: Likewise.
* system-vxworks-m68k.ads: Likewise.
* system-vxworks-mips.ads: Likewise.
* system-vxworks-ppc.ads: Likewise.
* system-vxworks-sparcv9.ads: Likewise.
* system-vxworks-x86.ads: Likewise.
* system.ads: Likewise.

From-SVN: r230753

opt.ads (Exception_Mechanism): Now three values: Front_End_SJLJ, Back_End_SJLJ and Back_End_ZCX.

2015-11-23  Olivier Hainque  <hainque@adacore.com>
    Eric Botcazou  <botcazou@adacore.com>

* opt.ads (Exception_Mechanism): Now three values: Front_End_SJLJ,
Back_End_SJLJ and Back_End_ZCX.
(Back_End_Exceptions, Front_End_Exceptions, ZCX_Exceptions,
SJLJ_Exceptions): New functions, reflecting properties of the current
Exception_Mechanism.
* opt.adb: Implement the new functions.
* fe.h: Bind the new Exception_Mechanism and helper functions for gigi.

* exp_ch11.adb (Expand_At_End_Handler): Replace test on mechanism by
use of property helper and update comments.
(Expand_Exception_Handlers): Replace tests on mechanism by use of
helper. Restrict Abort_Defer to ZCX specifically.
* exp_ch9.adb (Expand_N_Asynchronous_Select): Replace tests on
mechanism by calls to helper functions. Abort_Undefer for ZCX only,
paired with Expand_Exception_Handlers.
* exp_sel.adb (Build_Abort_Block_Handler): Replace tests on mechanism
by calls to helper functions. Abort_Undefer for ZCX only, paired with
Expand_Exception_Handlers.

* lib-writ.ads (P line documentation): Add entry for "FX",
representative of unit compiled with Frontend_Exceptions True.
* lib-writ.adb (Output_Main_Program_Line): Add "FX" on P line if
compiled with Frontend_Exceptions True.

* ali.ads (ALIs_Record): Ada a Frontend_Exceptions component, to reflect
whether the ALI file contained an "FX" indication on the P line.
(Frontend_Exceptions_Specified): New boolean, to keep track of whether
at least an FX ALI file is in the closure.
* ali.adb (Scan_ALI): Handle "FX" on the P line.
(Initialize_ALI): Initialize Frontend_Exceptions_Specified to False.

* targparm.ads: Update desription of exception schemes.
(Frontend_Exceptions_On_Target): New flag, reflect Frontend_Exceptions
set to True in system.ads, or not set at all.
* targparm.adb (Targparm_Tags): Add FEX to convey Frontend_Exceptions.
Rename ZCD to ZCX for consistency.
(FEX_Str, Targparm_Str, Get_Target_Parameters): Adjust accordingly.

* gnat1drv.adb (Adjust_Global_Switches): Adjust Exception_Mechanism
setting, now from combination of Frontend_Exceptions and ZCX_By_Default.

* bcheck.adb (Check_Consistent_Zero_Cost_Exception_Handling): Rename
as ...
(Check_Consistent_Exception_Handling): Check consistency of both
ZCX_By_Default and Frontend_Exceptions.
(Check_Configuration_Consistency): Check_Consistent_Exception_Handling
if either flag was set at least once.

* make.adb (Check): Remove processing of a possible -fsjlj coming from
lang-specs.h.
* gnatlink.adb (Gnatlin): Likewise.

* gcc-interface/Makefile.in (gnatlib-sjlj/zcx): Now set
both ZCX_By_Default and Frontend_Exceptions.
* gcc-interface/decl.c (gnat_to_gnu_entity, case E_Variable):
Use eh property helper to test for back-end exceptions. Adjust
mechanism name when testing for front-end sjlj.
(case E_Procedure): Likewise.
* gcc-interface/trans.c (Handled_Sequence_Of_Statements_to_gnu):
Likewise, and rename local variables.
(Exception_Handler_to_gnu_sjlj): Rename as
Exception_Handler_to_gnu_fe_sjlj.
(Exception_Handler_to_gnu_zcx): Rename as
Exception_Handler_to_gnu_gcc and adjust tests on eh mechanisms
to use property helpers or correct mechanism name.

Co-Authored-By: Eric Botcazou <ebotcazou@adacore.com>
From-SVN: r230752

* zh_CN.po: Update.

From-SVN: r230750

re PR tree-optimization/68327 (ICE on valid code at -O3 on x86_64-linux-gnu in vect_is_simple_use, at tree-vect-stmts.c:8562)

gcc/

PR tree-optimization/68327
* tree-vect-loop.c (vect_determine_vectorization_factor): Don't
compute vectype for non-relevant mask producers.
* gcc/tree-vect-stmts.c (vectorizable_comparison): Check stmt
relevance earlier.

gcc/testsuite/

PR tree-optimization/68327
* gcc.dg/pr68327.c: New test.

Co-Authored-By: Richard Biener <rguenther@suse.de>
From-SVN: r230743

Always call free_stmt_vec_info_vec in gather_scalar_reductions

2015-11-23  Tom de Vries  <tom@codesourcery.com>

PR tree-optimization/68460
* tree-parloops.c (gather_scalar_reductions): Also call
free_stmt_vec_info_vec if simple_loop_info == NULL.

* gcc.dg/autopar/pr68460.c: New test.

From-SVN: r230742

libsanitizer merge from upstream r253555, compiler part.

gcc/

* opts.c (finish_options): Allow -fsanitize-recover=address for
userspace sanitization.
* asan.c (asan_expand_check_ifn): Redefine recover_p.
* doc/invoke.texi (fsanitize-recover): Update documentation.

gcc/testsuite/

* c-c++-common/asan/halt_on_error-1.c: New test.
* c-c++-common/asan/halt_on_error-2.c: Likewise.

From-SVN: r230741

re PR target/68482 (No vectorization for x86-64)

2015-11-23  Richard Biener  <rguenther@suse.de>

PR tree-optimization/68482
* gcc.dg/vect/pr68482.c: New testcase.

From-SVN: r230740

libsanitizer merge from upstream r253555.

libsanitizer/

2015-11-23  Maxim Ostapenko  <m.ostapenko@partner.samsung.com>

* All source files: Merge from upstream r253555.
* configure.tgt: Enable LSan on aarch64-*-linux* targets. Add new
dependences for TSan for aarch64-*-linux* targets.
* tsan/Makefile.am: Add new source files.
* configure: Regenerate.
* tsan/Makefile.in: Likewise.

From-SVN: r230739

Mark by_ref mem_ref in build_receiver_ref as non-trapping

2015-11-23  Tom de Vries  <tom@codesourcery.com>

* omp-low.c (build_receiver_ref): Mark by_ref mem_ref as non-trapping.

From-SVN: r230738

re PR tree-optimization/68445 (ICE: internal compiler error: in operator[], at vec.h)

2015-11-23  Richard Biener  <rguenther@suse.de>

PR tree-optimization/68445
* tree-vect-slp.c (vect_create_mask_and_perm): Properly use
two different strides.

* gcc.dg/vect/pr68445.c: New testcase.

From-SVN: r230737

S/390: Fix symbol ref alignment

This patch fixes the treatment of symbol ref alignments for
arrays and structs in S390. Until now, the NOT_NATURALLY_ALIGNED flag
was not correctly set for array elements and structs larger than 8
bytes. Therefore, load relative instructions that require a specific
alignment would not always be generated. This patch uses separate flags
for 2-, 4-, and 8-byte alignment to fix the problem.

gcc/testsuite/ChangeLog:

2015-11-23  Robin Dapp  <rdapp@linux.vnet.ibm.com>

        * gcc.target/s390/load-relative-check.c: New test to check
        generation of load relative instructions.

gcc/ChangeLog:

2015-11-23  Robin Dapp  <rdapp@linux.vnet.ibm.com>

        * config/s390/s390.h: Add new symref flags, _NOTALIGN2 etc.
        * config/s390/s390.c (s390_check_symref_alignment): Use new
        symref flags, early abort on wrong alignment
        (s390_secondary_reload): Use new symref flags.
        (s390_encode_section_info): Likewise.
        * config/s390/predicates.md: Likewise.

From-SVN: r230735

re PR fortran/52251 (Nonadvancing I/O and the t edit descriptor)

2015-11-22  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

PR libfortran/52251
* io/transfer.c (formatted_transfer_scalar_write): Reset skips count.
(finalize_transfer): For ADVANCE_NO, emit pending spaces and reset the
skip count.

2015-11-22  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

* gfortran.dg/fmt_t_8.f90: New test.

From-SVN: r230734

Daily bump.

From-SVN: r230733

re PR target/68390 (Incorrect code due to indirect tail call of varargs function with hard float ABI)

gcc/ChangeLog:

2015-11-23  Kugan Vivekanandarajah  <kuganv@linaro.org>

PR target/68390
* config/arm/arm.c (arm_function_ok_for_sibcall): Get function type
for indirect function call.

gcc/testsuite/ChangeLog:

2015-11-23  Kugan Vivekanandarajah  <kuganv@linaro.org>

PR target/68390
* gcc/testsuite/gcc.c-torture/execute/pr68390.c: New test.

From-SVN: r230730

fmt_g0_1.f08: Update test.

2015-11-22  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

* gfortran.dg/fmt_g0_1.f08: Update test. Leading zero.

From-SVN: r230729

write_float.def (output_float): Move block determining room for leading zero to before checkng g0 formatting.

2015-11-22  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

* io/write_float.def (output_float): Move block determining
room for leading zero to before checkng g0 formatting.

From-SVN: r230728

libitm: Fix recent changes to allocations log.

libitm/
* libitm_i.h (gtm_alloc_action): Remove union.
* testsuite/libitm.c/alloc-1.c: New.

From-SVN: r230727

re PR fortran/68486 (187.facerec in SPEC CPU 2000 failed to build)

2015-11-22  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/68486
* simplify.c (gfc_simplify_cshift):  Add EXPR_OP to mix.

2015-11-22  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/68486
* gfortran.dg/simplify_cshift_2.f90: New test.

From-SVN: r230726

openmp.c (match_oacc_clause_gang): Fix uninitialized variable.

gcc/fortran/
* openmp.c (match_oacc_clause_gang): Fix uninitialized variable.
(gfc_resolve_oacc_declare): Fix comparision.

Co-Authored-By: Steven G. Kargl <kargl@gcc.gnu.org>
From-SVN: r230725

dump-parse-tree.c (show_namespace): Handle declares.

gcc/fortran/
* dump-parse-tree.c (show_namespace): Handle declares.
* gfortran.h (struct symbol_attribute): New fields.
(enum gfc_omp_map_map): Add OMP_MAP_DEVICE_RESIDENT and OMP_MAP_LINK.
(OMP_LIST_LINK): New enum.
(struct gfc_oacc_declare): New structure.
(gfc_get_oacc_declare): New definition.
(struct gfc_namespace): Change type.
(enum gfc_exec_op): Add EXEC_OACC_DECLARE.
(struct gfc_code): New field.
* module.c (enum ab_attribute): Add AB_OACC_DECLARE_CREATE,
AB_OACC_DECLARE_COPYIN, AB_OACC_DECLARE_DEVICEPTR,
AB_OACC_DECLARE_DEVICE_RESIDENT, AB_OACC_DECLARE_LINK
(attr_bits): Add new initializers.
(mio_symbol_attribute): Handle new atributes.
* openmp.c (gfc_free_oacc_declare_clauses): New function.
(gfc_match_oacc_clause_link: Likewise.
(OMP_CLAUSE_LINK): New definition.
(gfc_match_omp_clauses): Handle OMP_CLAUSE_LINK.
(OACC_DECLARE_CLAUSES): Add OMP_CLAUSE_LINK
(gfc_match_oacc_declare): Add checking and module handling.
(resolve_omp_clauses): Add array initializer.
(gfc_resolve_oacc_declare): Reimplement.
* parse.c (case_decl): Add ST_OACC_DECLARE.
(parse_spec): Remove handling.
(parse_progunit): Remove handling.
* parse.h (struct gfc_state_data): Change type.
* resolve.c (gfc_resolve_blocks): Handle EXEC_OACC_DECLARE.
* st.c (gfc_free_statement): Handle EXEC_OACC_DECLARE.
* symbol.c (check_conflict): Add conflict checks.
(gfc_add_oacc_declare_create, gfc_add_oacc_declare_copyin,
gfc_add_oacc_declare_deviceptr, gfc_add_oacc_declare_device_resident):
New functions.
(gfc_copy_attr): Handle new symbols.
* trans-decl.c (add_clause, find_module_oacc_declare_clauses,
finish_oacc_declare): New functions.
(gfc_generate_function_code): Replace with call.
* trans-openmp.c (gfc_trans_oacc_declare): Reimplement.
(gfc_trans_oacc_directive): Handle EXEC_OACC_DECLARE.
* trans-stmt.c (gfc_trans_block_construct): Replace with call.
* trans-stmt.h (gfc_trans_oacc_declare): Remove argument.
* trans.c (trans_code): Handle EXEC_OACC_DECLARE.

gcc/testsuite
* gfortran.dg/goacc/declare-1.f95: Update test.
* gfortran.dg/goacc/declare-2.f95: New test.

libgomp/
* testsuite/libgomp.oacc-fortran/declare-1.f90: New test.
* testsuite/libgomp.oacc-fortran/declare-2.f90: Likewise.
* testsuite/libgomp.oacc-fortran/declare-3.f90: Likewise.
* testsuite/libgomp.oacc-fortran/declare-4.f90: Likewise.
* testsuite/libgomp.oacc-fortran/declare-5.f90: Likewise.

Co-Authored-By: Cesar Philippidis <cesar@codesourcery.com>
From-SVN: r230722

[AARCH64][PATCH 2/3] Implementing vmulx_lane NEON intrinsic variants

gcc/

* config/aarch64/arm_neon.h (vmulx_lane_f32): New.
(vmulx_lane_f64): Likewise.
(vmulxq_lane_f32): Refactored & moved.
(vmulxq_lane_f64): Likewise.
(vmulx_laneq_f32): New.
(vmulx_laneq_f64): Likewise.
(vmulxq_laneq_f32): Likewise.
(vmulxq_laneq_f64): Likewise.
(vmulxs_lane_f32): Likewise.
(vmulxs_laneq_f32): Likewise.
(vmulxd_lane_f64): Likewise.
(vmulxd_laneq_f64): Likewise.
* config/aarch64/aarch64-simd.md
(*aarch64_mulx_elt_<vswap_width_name><mode>, VDQSF): New pattern.
(*aarch64_mulx_elt<mode>, VDQF): Likewise.
(*aarch64_mulx_elt_to_64v2df): Likewise.
(*aarch64_vgetfmulx<mode>, VDQF_DF): Likewise.

gcc/testsuite/

* gcc.target/aarch64/simd/vmulx_lane_f32_1.c: New.
* gcc.target/aarch64/simd/vmulx_lane_f64_1.c: New.
* gcc.target/aarch64/simd/vmulx_laneq_f32_1.c: New.
* gcc.target/aarch64/simd/vmulx_laneq_f64_1.c: New.
* gcc.target/aarch64/simd/vmulxq_lane_f32_1.c: New.
* gcc.target/aarch64/simd/vmulxq_lane_f64_1.c: New.
* gcc.target/aarch64/simd/vmulxq_laneq_f32_1.c: New.
* gcc.target/aarch64/simd/vmulxq_laneq_f64_1.c: New.
* gcc.target/aarch64/simd/vmulxs_lane_f32_1.c: New.
* gcc.target/aarch64/simd/vmulxs_laneq_f32_1.c: New.
* gcc.target/aarch64/simd/vmulxd_lane_f64_1.c: New.
* gcc.target/aarch64/simd/vmulxd_laneq_f64_1.c: New.

From-SVN: r230720

Daily bump.

From-SVN: r230718

lto.c (iterative_hash_canonical_type): Always recurse for pointers.

* lto.c (iterative_hash_canonical_type): Always recurse for pointers.
(gimple_register_canonical_type_1): Check that pointers do not get
canonical types.
(gimple_register_canonical_type): Do not register pointers.

* tree.c (build_pointer_type_for_mode,build_reference_type_for_mode):
In LTO we do not compute TYPE_CANONICAL of pointers.
(gimple_canonical_types_compatible_p): Improve coments; sanity check
that pointers do not have canonical type that would make us believe
they are different.
* alias.c (get_alias_set): Do structural type equality on pointers;
enable pointer path for LTO; also glob pointer to vector with pointer
to vector element; glob pointers and references for LTO; do more strict
sanity checking about build_pointer_type returning the canonical type
which is also the main variant.
(record_component_aliases): When component type is pointer and we
do LTO; record void_type_node alias set.

From-SVN: r230715

lto-symtab.c (warn_type_compatibility_p): Do not set ODR mismatch flag for types that are not ODR...

* lto-symtab.c (warn_type_compatibility_p): Do not set ODR mismatch
flag for types that are not ODR; fix loop walking parameters.

From-SVN: r230712

simplify.c (gfc_simplify_cshift): Work around bootstrap issues due to inappropriate warning options.

2015-11-21  Steven G. Kargl  <kargl@gcc.gnu.org>

* simplify.c (gfc_simplify_cshift): Work around bootstrap issues
due to inappropriate warning options.

From-SVN: r230710

simplify.c (gfc_simplify_cshift): Implement simplification of CSHIFT.

2015-11-21  Steven G. Kargl  <kargl@gcc.gnu.org>

* simplify.c (gfc_simplify_cshift): Implement simplification of CSHIFT.
(gfc_simplify_spread): Remove a FIXME and add error condition.
* intrinsic.h: Prototype for gfc_simplify_cshift
* intrinsic.c (add_functions): Use gfc_simplify_cshift.

2015-11-21  Steven G. Kargl  <kargl@gcc.gnu.org>

* gfortran.dg/simplify_cshift_1.f90: New test.

From-SVN: r230709

* gcc.dg/atomic-generic.c: Include <string.h>.q

From-SVN: r230708

* gfortran.dg/submodule_6.f08: Add dg-require-effective-target lto.

From-SVN: r230707

* config/nvptx/nvptx.md (clz<mode>2): Use operand 1 for type.

From-SVN: r230706

nvptx.c (write_function_decl_and_comment): Print leading blank line.

* config/nvptx/nvptx.c (write_function_decl_and_comment): Print
leading blank line.
(write_func_decl_from_insn): Likewise.
(init_output_initializer, nvptx_assemble_undefined_decl): Likewise.
(nvptx_file_end): Likewise.
(nvptx_function_end): Undent output.
(nvptx_expand_call): Fix formatting.
(nvptx_output_call_insn): Indent output.
* config/nvptx/nvptx.h (ASM_OUTPUT_ALIGNED_DECL_COMMON,
ASM__OUTPUT_ALIGNED_DECL_LOCAL): Print leading blank line.

From-SVN: r230705