[multiple changes]

2016-11-09  Steve Kargl <kargl@gcc.gnu.org>
    Janus Weil  <janus@gcc.gnu.org>

PR fortran/60777
* expr.c (external_spec_function): Allow recursive specification
functions in F03.

2016-11-09  Janus Weil  <janus@gcc.gnu.org>

PR fortran/60777
* gfortran.dg/spec_expr_7.f90: New test.

From-SVN: r242009

re PR middle-end/77718 (expand_builtin_memcmp swaps args)

PR target/77718
* builtins.c (expand_builtin_memcmp): Formatting fix.

* gcc.c-torture/execute/pr77718.c: New test.

From-SVN: r242007

flag-types.h (enum sanitize_code): Add SANITIZE_SHIFT_BASE and SANITIZE_SHIFT_EXPONENT...

* flag-types.h (enum sanitize_code): Add SANITIZE_SHIFT_BASE
and SANITIZE_SHIFT_EXPONENT, change SANITIZE_SHIFT to bitwise
or of them, renumber other enumerators.
* opts.c (sanitizer_opts): Add shift-base and shift-exponent.
* doc/invoke.texi: Document -fsanitize=shift-base and
-fsanitize-shift-exponent, document -fsanitize=shift as
having those 2 suboptions.
c-family/
* c-ubsan.c (ubsan_instrument_shift): Handle split
-fsanitize=shift-base and -fsanitize=shift-exponent.
testsuite/
* gcc.dg/ubsan/c99-shift-3.c: New test.
* gcc.dg/ubsan/c99-shift-4.c: New test.
* gcc.dg/ubsan/c99-shift-5.c: New test.
* gcc.dg/ubsan/c99-shift-6.c: New test.

From-SVN: r242005

fold-const.c (tree_swap_operands_p): Remove unused arg.

2016-11-09  Richard Biener  <rguenther@suse.de>

* fold-const.c (tree_swap_operands_p): Remove unused arg.
* fold-const.c (tree_swap_operands_p): Likewise.
(fold_binary_loc): Adjust.
(fold_ternary_loc): Likewise.
* genmatch.c (dt_operand::gen_gimple_exp): Likewise.
* gimple-fold.c (fold_stmt_1): Likewise.
* gimple-match-head.c (gimple_resimplify2): Likewise.
(gimple_resimplify3): Likewise.
(gimple_simplify): Likewise.
* tree-ssa-dom.c (record_equality): Likewise.
* tree-ssa-reassoc.c (optimize_range_tests_var_bound): Likewise.
* tree-ssa-sccvn.c (vn_nary_op_compute_hash): Likewise.
* tree-ssa-threadedge.c (simplify_control_stmt_condition_1): Likewise.

From-SVN: r242004

tree-ssa-dom.c (canonicalize_comparison): Remove.

2016-11-09  Richard Biener  <rguenther@suse.de>

* tree-ssa-dom.c (canonicalize_comparison): Remove.
(optimize_stmt): Remove redundant pre-propagation canonicalization
of comparison operand order.

From-SVN: r242003

Fix folding of memcmp("a", "a", 2) (PR

* fold-const-call.c (fold_const_call): Fix the folding.
* gcc.dg/tree-ssa/builtins-folding-generic.c (main): Add new
test-case for memcmp.
* gcc.dg/tree-ssa/builtins-folding-gimple.c: Likewise.

From-SVN: r242000

common.opt (flag_evaluation_order): Remove.

2016-11-09  Richard Biener  <rguenther@suse.de>

* common.opt (flag_evaluation_order): Remove.
* expr.c (expand_operands): Remove code guarded by
flag_evaluation_order.
* fold-const.c (reorder_operands_p): Remove, it always returns
true.
(negate_expr_p): Remove calls to reorder_operands_p.
(fold_negate_expr): Likewise.
(tree_swap_operands_p): Likewise.
(fold_binary_loc): Likewise.

From-SVN: r241998

re PR c++/78269 (FAIL: FAIL: g++.dg/cpp1z/noexcept-type11.C and FAIL: g++.dg/cpp1z/noexcept-type9.C)

2016-11-09  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/testsuite/
    PR testsuite/78269
    * g++.dg/cpp1z/noexcept-type9.C: Make it a compile test.

From-SVN: r241997

re PR target/78254 (FAIL: g++.dg/torture/pr77822.C   -O3 -g  (internal compiler error))

PR target/78254
* config/m68k/m68k.md: Reject out-of-range bit pos in bit-fields
insns operating on a register.

From-SVN: r241996

check.c (gfc_check_move_alloc): Prevent error that avoids aliasing between to and from arguments from rejecting...

2016-11-09  Paul Thomas  <pault@gcc.gnu.org>

* check.c (gfc_check_move_alloc): Prevent error that avoids
aliasing between to and from arguments from rejecting valid
code.

2016-11-09  Paul Thomas  <pault@gcc.gnu.org>

* gfortran.dg/move_alloc_18.f90: New test.

From-SVN: r241995

re PR testsuite/78256 (test case gcc.dg/pr35691-1.c fails starting with its introduction in r241915)

2016-11-09  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

PR middle-end/78256
testsuite/
* gcc.dg/pr35691-1.c (foo): Use & instead of &&.
* gcc.dg/pr35691-2.c (foo): Use | instead of ||.

From-SVN: r241994

re PR fortran/71894 ([OOP] ICE in gfc_add_component_ref, at fortran/class.c:227)

2016-11-09  Janus Weil  <janus@gcc.gnu.org>

PR fortran/71894
* class.c (gfc_add_component_ref): Add safety checks to avoid ICE.

2016-11-09  Janus Weil  <janus@gcc.gnu.org>

PR fortran/71894
* gfortran.dg/class_59.f90: New test.

From-SVN: r241993

re PR target/78007 (Important loop from 482.sphinx3  is not vectorized)

2016-11-09  Richard Biener  <rguenther@suse.de>

PR tree-optimization/78007
* tree-vect-stmts.c (vectorizable_bswap): New function.
(vectorizable_call): Call vectorizable_bswap for
BUILT_IN_BSWAP{16,32,64} if arguments are not promoted.

* gcc.dg/vect/vect-bswap32.c: Adjust.
* gcc.dg/vect/vect-bswap64.c: Likewise.

From-SVN: r241992

tree-vect-data-refs.c (vect_compute_data_ref_alignment): Look at the DR_BASE_ADDRESS object for forcing alignment.

2016-11-09  Richard Biener  <rguenther@suse.de>

* tree-vect-data-refs.c (vect_compute_data_ref_alignment):
Look at the DR_BASE_ADDRESS object for forcing alignment.

From-SVN: r241991

Handle unary pass-through jump functions for ipa-vrp

Handle unary pass-through jump functions for ipa-vrp
gcc/testsuite/ChangeLog:

2016-11-09  Kugan Vivekanandarajah  <kuganv@linaro.org>

* gcc.dg/ipa/vrp7.c: New test.

gcc/ChangeLog:

2016-11-09  Kugan Vivekanandarajah  <kuganv@linaro.org>

* ipa-cp.c (ipa_get_jf_pass_through_result): Handle unary expressions.
(propagate_vr_accross_jump_function): Likewise.
* ipa-prop.c (ipa_set_jf_unary_pass_through): New.
(load_from_param_1): New.
(load_from_unmodified_param): Factor common part into load_from_param_1.
(load_from_param): New.
(compute_complex_assign_jump_func): Handle unary expressions.
(ipa_write_jump_function): Likewise.
(ipa_read_jump_function): Likewise.

From-SVN: r241990

Fix ice in set_value_range

Fix ice in set_value_range
gcc/ChangeLog:

2016-11-09  Kugan Vivekanandarajah  <kuganv@linaro.org>

PR ipa/78121
* ipa-cp.c (propagate_vr_accross_jump_function): Pass param type.
Also fold constant passed as argument while computing value range.
(propagate_constants_accross_call): Pass param type.
* ipa-prop.c: export ipa_get_callee_param_type.
* ipa-prop.h: export ipa_get_callee_param_type.

gcc/testsuite/ChangeLog:

2016-11-09  Kugan Vivekanandarajah  <kuganv@linaro.org>

PR ipa/78121
* gcc.dg/ipa/pr78121.c: New test.

From-SVN: r241989

Daily bump.

From-SVN: r241987

asan.h (asan_intercepted_p): Handle BUILT_IN_STRCSPN, BUILT_IN_STRPBRK, BUILT_IN_STRSPN and BUILT_IN_STRSTR.

gcc/

* asan.h (asan_intercepted_p): Handle BUILT_IN_STRCSPN,
BUILT_IN_STRPBRK, BUILT_IN_STRSPN and BUILT_IN_STRSTR.

gcc/testsuite/

* c-c++-common/asan/default_options.h: New file.
* c-c++-common/asan/strcasestr-1.c: New test.
* c-c++-common/asan/strcasestr-2.c: Likewise.
* c-c++-common/asan/strcspn-1.c: Likewise.
* c-c++-common/asan/strcspn-2.c: Likewise.
* c-c++-common/asan/strpbrk-1.c: Likewise.
* c-c++-common/asan/strpbrk-2.c: Likewise.
* c-c++-common/asan/strspn-1.c: Likewise.
* c-c++-common/asan/strspn-2.c: Likewise.
* c-c++-common/asan/strstr-1.c: Likewise.
* c-c++-common/asan/strstr-2.c: Likewise.
* c-c++-common/asan/halt_on_error_suppress_equal_pcs-1.c: Likewise.

From-SVN: r241984

asan.h (ASAN_STACK_MAGIC_PARTIAL): Remove.

gcc/

* asan.h (ASAN_STACK_MAGIC_PARTIAL): Remove.
* asan.c (ASAN_STACK_MAGIC_PARTIAL): Replace with
ASAN_STACK_MAGIC_MIDDLE.
(asan_global_struct): Increase the size of fields.
(asan_add_global): Add new field constructor.
* sanitizer.def (__asan_version_mismatch_check_v6): Replace with
__asan_version_mismatch_check_v8.

gcc/testsuite/

* c-c++-common/asan/null-deref-1.c: Adjust testcase.

From-SVN: r241983

asan_globals.cc (RegisterGlobal): Do not call CheckODRViolationViaPoisoning.

libsanitizer/

* asan/asan_globals.cc (RegisterGlobal): Do not call
CheckODRViolationViaPoisoning.
(CheckODRViolationViaPoisoning): Remove.

From-SVN: r241981

sanitizer_stacktrace.cc (GetCanonicFrame): Assume we compiled code with GCC when extracting the caller PC for ARM if...

libsanitizer/

* sanitizer_common/sanitizer_stacktrace.cc (GetCanonicFrame): Assume we
compiled code with GCC when extracting the caller PC for ARM if no
valid frame pointer is available.

From-SVN: r241980

re PR fortran/68440 ([OOP] ICE on declaring class variable with wrong attribute)

2016-11-08  Janus Weil  <janus@gcc.gnu.org>

PR fortran/68440
* expr.c (check_alloc_comp_init): Loosen an assert.
* resolve.c (resolve_fl_parameter): Reject class parameters.

2016-11-08  Janus Weil  <janus@gcc.gnu.org>

PR fortran/68440
* gfortran.dg/class_58.f90: New test.

From-SVN: r241979

re PR sanitizer/63958 (bootstrap failure in the sanitizer libs on sparc-linux-gnu)

PR sanitizer/63958
Reapply:
2014-10-14  David S. Miller  <davem@davemloft.net>

* sanitizer_common/sanitizer_platform_limits_linux.cc (time_t):
Define at __kernel_time_t, as needed for sparc.
(struct __old_kernel_stat): Don't check if __sparc__ is defined.
* libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
(__sanitizer): Define struct___old_kernel_stat_sz,
struct_kernel_stat_sz, and struct_kernel_stat64_sz for sparc.
(__sanitizer_ipc_perm): Adjust for sparc targets.
(__sanitizer_shmid_ds): Likewsie.
(__sanitizer_sigaction): Likewise.
(IOC_SIZE): Likewsie.

From-SVN: r241978

All source files: Merge from upstream 285547.

libsanitizer/

* All source files: Merge from upstream 285547.
* configure.tgt (SANITIZER_COMMON_TARGET_DEPENDENT_OBJECTS): New
variable.
* configure.ac (SANITIZER_COMMON_TARGET_DEPENDENT_OBJECTS): Handle it.
* asan/Makefile.am (asan_files): Add new files.
* asan/Makefile.in: Regenerate.
* ubsan/Makefile.in: Likewise.
* lsan/Makefile.in: Likewise.
* tsan/Makefile.am (tsan_files): Add new files.
* tsan/Makefile.in: Regenerate.
* sanitizer_common/Makefile.am (sanitizer_common_files): Add new files.
(EXTRA_libsanitizer_common_la_SOURCES): Define.
(libsanitizer_common_la_LIBADD): Likewise.
(libsanitizer_common_la_DEPENDENCIES): Likewise.
* sanitizer_common/Makefile.in: Regenerate.
* interception/Makefile.in: Likewise.
* libbacktace/Makefile.in: Likewise.
* Makefile.in: Likewise.
* configure: Likewise.
* merge.sh: Handle builtins/assembly.h merging.
* builtins/assembly.h: New file.
* asan/libtool-version: Bump the libasan SONAME.

From-SVN: r241977

dwarf2asm.c (USE_LINKONCE_INDIRECT): Test XCOFF_DEBUGGING_INFO at runtime.

        * dwarf2asm.c (USE_LINKONCE_INDIRECT): Test XCOFF_DEBUGGING_INFO
        at runtime.

From-SVN: r241975

re PR target/70799 (STV pass does not convert DImode shifts)

PR target/70799
* config/i386/i386.c (dimode_scalar_to_vector_candidate_p):
Handle ASHIFT and LSHIFTRT.
(dimode_scalar_chain::compute_convert_gain): Ditto.
(dimode_scalar_chain::convert_insn): Ditto.

testsuite/ChangeLog:

PR target/70799
* gcc.target/i386/pr70799-2.c: New test.

From-SVN: r241974

re PR fortran/77596 ([F03] procedure pointer component with implicit interface can point to a function)

2016-11-08  Janus Weil  <janus@gcc.gnu.org>

PR fortran/77596
* expr.c (gfc_check_pointer_assign): Add special check for procedure-
pointer component with absent interface.

2016-11-08  Janus Weil  <janus@gcc.gnu.org>

PR fortran/77596
* gfortran.dg/proc_ptr_comp_46.f90: New test.

From-SVN: r241972

[2/2] Add store merging unit tests

* gimple-ssa-store-merging.c: Include selftest.h
(verify_array_eq): New function.
(verify_shift_bytes_in_array): Likewise.
(verify_shift_bytes_in_array_right): Likewise.
(verify_clear_bit_region): Likewise.
(verify_clear_bit_region_be): Likewise.
(store_merging_c_tests): Likewise.
* selftest.h (store_merging_c_tests): Declare prototype.
* selftest-run-tests.c (selftest::run_tests): Run
store_merging_c_tests.

From-SVN: r241971

pr56541.c: Xfail on !vect_cond_mixed targets.

gcc/testsuite
* gcc.dg/vect/pr56541.c: Xfail on !vect_cond_mixed targets.

From-SVN: r241969

pr71347.c: Drop xfail.

gcc/testsuite
* gcc.dg/tree-ssa/pr71347.c: Drop xfail.

From-SVN: r241968

vect-cond-2.c: Drop xfail.

gcc/testsuite
* gcc.dg/vect/vect-cond-2.c: Drop xfail.

From-SVN: r241967

[ARM][2/2] Remove old rtx costs

* config/arm/arm.opt (mold-rtx-costs): Delete.
(mnew-generic-costs): Delete.
* config/arm/arm-protos.h (struct tune_params): Delete rtx_costs field.
* config/arm/arm.c (arm_rtx_costs_1): Delete.
(arm_size_rtx_costs): Likewise.
(arm_slowmul_rtx_costs): Likewise.
(arm_fastmul_rtx_costs): Likewise.
(arm_xscale_rtx_costs): Likewise.
(arm_9e_rtx_costs): Likewise.
(arm_slowmul_tune, arm_fastmul_tune, arm_strongarm_tune,
arm_xscale_tune, arm_9e_tune, arm_v6t2_tune, arm_cortex_tune,
arm_cortex_a8_tune, arm_cortex_a7_tune, arm_cortex_a15_tune,
arm_cortex_a53_tune, arm_cortex_a57_tune, arm_cortex_a9_tune,
arm_cortex_a12_tune, arm_v7m_tune, arm_v6m_tune, arm_fa726te_tune
arm_cortex_a5_tune, arm_xgene1_tune, arm_marvell_pj4_tune,
arm_cortex_a35_tune, arm_exynosm1_tune, arm_cortex_a73_tune,
arm_cortex_m7_tune):
Delete rtx_costs field.
(arm_new_rtx_costs): Rename to...
(arm_rtx_costs_internal): ... This.
(arm_rtx_costs): Remove old way of doing rtx costs.

From-SVN: r241966

[ARM][1/2] Use generic_extra_costs in all remaining tuning structs

* config/arm/arm.c (arm_slowmul_tune): Use generic_extra_costs.
(arm_fastmul_tune): Likewise.
(arm_strongarm_tune): Likewise.
(arm_xscale_tune): Likewise.
(arm_9e_tune): Likewise.
(arm_marvell_pj4_tune): Likewise.
(arm_v6t2_tune): Likewise.
(arm_v6m_tune): Likewise.
(arm_fa726te_tune): Likewise.

From-SVN: r241965

[AArch64] Optimized implementation of search_line_fast for the CPP lexer

  * lex.c (search_line_fast): New implementation for AArch64.

From-SVN: r241964

[1/2] Fix off-by-one error in clear_bit_region in store merging (PR tree-optimization/78234 ?)

PR tree-optimization/78234
* gimple-ssa-store-merging.c (clear_bit_region): Fix off-by-one error
in start != 0 case.

From-SVN: r241962

use-after-scope fallout

PR testsuite/78242
* g++.dg/asan/use-after-scope-4.C: New test.
* g++.dg/asan/use-after-scope-types-4.C: Update scanned pattern.
* gcc.dg/asan/use-after-scope-8.c: Remove.
PR testsuite/78242
* dbgcnt.def: Add new debug counter asan_use_after_scope.
* gimplify.c (gimplify_decl_expr): Do not sanitize vars
with a value expr.  Do not add artificial variables to
live_switch_vars.  Use the debug counter.
(gimplify_target_expr): Use the debug counter.
* internal-fn.def: Remove ECF_TM_PURE from ASAN_MARK builtin.
* sanitizer.def: Set ATTR_NOTHROW_LEAF_LIST to
BUILT_IN_ASAN_CLOBBER_N and BUILT_IN_ASAN_UNCLOBBER_N.

From-SVN: r241961

tree-vect-stmts.c (get_group_load_store_type): If the access is aligned do not trigger peeling for gaps.

2016-11-08  Richard Biener  <rguenther@suse.de>

* tree-vect-stmts.c (get_group_load_store_type): If the
access is aligned do not trigger peeling for gaps.
* tree-vect-data-refs.c (vect_compute_data_ref_alignment): Do not
force alignment of vars with DECL_USER_ALIGN.

* gcc.dg/vect/vect-nb-iter-ub-2.c: Adjust.

From-SVN: r241959

[Patch AArch64] aarch64-c.o should depend on TARGET_H

gcc/

* config/aarch64/t-aarch64 (aarch64-c.o): Depend on TARGET_H.

From-SVN: r241958

Fix traditional cpp test failure

* gcc.dg/cpp/trad/trad.exp
(dg-runtest): Added $srcdir/$subdir/ to Include dirs.
* gcc.dg/cpp/trad/include.c: Use local header file.

From-SVN: r241957

re PR tree-optimization/78205 (BB vectorization confused by too large load groups)

2016-11-08  Richard Biener  <rguenther@suse.de>

PR tree-optimization/78205
* tree-vect-stmts.c (vectorizable_load): Move check whether
we may run into gaps when BB vectorizing SLP permutations ...
* tree-vect-slp.c (vect_supported_load_permutation_p): ...
here where we can do a more precise check.

* gcc.dg/vect/bb-slp-pr78205.c: New testcase.

From-SVN: r241956

re PR tree-optimization/78224 (g++ ICE at -O2(-O1 on gcc6) and above in verify_loop_structure, at cfgloop.c:1646)

2016-11-08  Richard Biener  <rguenther@suse.de>

PR tree-optimization/78224
* tree-call-cdce.c (shrink_wrap_one_built_in_call_with_conds):
Split the fallthru edge in case its successor may have PHIs.
Do not free dominance info.

* g++.dg/torture/pr78224.C: New testcase.

From-SVN: r241955

Fix bogus store_merging_x.c failures for avr.

Store merging isn't profitable for the avr. Add a new
effective target keyword "store_merge", and turn it on
only if non_strict_align *and* int32plus, as targets with
smallish word sizes are unlikely to profit from this optimization.

gcc/testsuite/ChangeLog

2016-11-03  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

* gcc.dg/store_merging_1.c: Require store_merge.
* gcc.dg/store_merging_2.c: Likewise.
* gcc.dg/store_merging_4.c: Likewise.
* gcc.dg/store_merging_5.c: Likewise.
* gcc.dg/store_merging_6.c: Likewise.
* gcc.dg/store_merging_7.c: Likewise.
* gcc.dg/store_merging_8.c: Likewise.
* lib/target-supports.exp (check_effective_target_store_merge): New.

From-SVN: r241953

Daily bump.

From-SVN: r241949

fold-vec-add-1.c: Add dg-options -maltivec.

        * gcc.target/powerpc/fold-vec-add-1.c: Add dg-options -maltivec.
        * gcc.target/powerpc/fold-vec-add-2.c: Add dg-options -maltivec.
        * gcc.target/powerpc/fold-vec-add-3.c: Add dg-options -maltivec.
        * gcc.target/powerpc/fold-vec-add-4.c: Add dg-options -maltivec
        -mvsx -mpower8-vector.
        * gcc.target/powerpc/fold-vec-add-5.c: Add dg-options -maltivec -mno-vs\
x.
        * gcc.target/powerpc/fold-vec-add-6.c: Add dg-options -maltivec -mvsx.
        * gcc.target/powerpc/fold-vec-add-7.c: Add dg-options -maltivec
        -mvsx -mpower8-vector.

From-SVN: r241945

Implement P0012R1, Make exception specifications part of the type system.

gcc/cp/
* cp-tree.h (enum tsubst_flags): Add tf_fndecl_type.
(flag_noexcept_type, ce_type): New.
* call.c (build_conv): Add ck_fnptr.
(enum conversion_kind): Change ck_tsafe to ck_fnptr.
(convert_like_real): Likewise.
(standard_conversion): Likewise.  Allow function pointer
conversions for pointers to member functions.
(reference_compatible_p): Allow function pointer conversions.
(direct_reference_binding): Likewise.
(reference_binding): Reference-compatible is no longer a subset of
reference-related.
(is_subseq): Also strip ck_lvalue after next_conversion.
* class.c (instantiate_type): Check fnptr_conv_p.
(resolve_address_of_overloaded_function): Likewise.
* cvt.c (can_convert_tx_safety): Now static.
(noexcept_conv_p, fnptr_conv_p, strip_fnptr_conv): New.
* decl.c (flag_noexcept_type): Define.
(cxx_init_decl_processing): Set it.
(bad_specifiers): Check it.
(grokdeclarator) [cdk_function]: Add exception-spec to type here.
* lambda.c (maybe_add_lambda_conv_op): Add exception-spec to
returned pointer.
* mangle.c (struct globals): Add need_cxx1z_warning.
(mangle_decl): Check it.
(write_exception_spec): New.
(write_function_type): Call it.
(canonicalize_for_substitution): Handle exception spec.
(write_type): Likewise.
(write_encoding): Set processing_template_decl across mangling of
partially-instantiated type.
* pt.c (determine_specialization): Pass tf_fndecl_type.
(tsubst_decl, fn_type_unification): Likewise.
(tsubst): Strip tf_fndecl_type, pass it to
tsubst_exception_specification.
(convert_nontype_argument_function): Handle function pointer
conversion.
(convert_nontype_argument): Likewise.
(unify, for_each_template_parm_r): Walk into noexcept-specifier.
* rtti.c (ptr_initializer): Encode noexcept.
* tree.c (canonical_eh_spec): New.
(build_exception_variant): Use it.
* typeck.c (composite_pointer_type): Handle fnptr conversion.
(comp_except_specs): Compare canonical EH specs.
(structural_comptypes): Call it.
gcc/c-family/
* c.opt (Wc++1z-compat): New.
* c-cppbuiltin.c (c_cpp_builtins): Add __cpp_noexcept_function_type.
libstdc++-v3/
* include/bits/c++config (_GLIBCXX_NOEXCEPT_PARM)
(_GLIBCXX_NOEXCEPT_QUAL): New.
* include/std/type_traits (is_function): Use them.
* libsubc++/new (launder): Likewise.
* libsupc++/cxxabi.h (__pbase_type_info::__masks): Add
__noexcept_mask.
* libsupc++/pbase_type_info.cc (__do_catch): Handle function
pointer conversion.
libiberty/
* cp-demangle.c (is_fnqual_component_type): New.
(d_encoding, d_print_comp_inner, d_print_mod_list): Use it.
(FNQUAL_COMPONENT_CASE): New.
(d_make_comp, has_return_type, d_print_comp_inner)
(d_print_function_type): Use it.
(next_is_type_qual): New.
(d_cv_qualifiers, d_print_mod): Handle noexcept and throw-spec.
include/
* demangle.h (enum demangle_component_type): Add
DEMANGLE_COMPONENT_NOEXCEPT, DEMANGLE_COMPONENT_THROW_SPEC.

From-SVN: r241944

C++ cleanups before C++17 noexcept in types.

* call.c (standard_conversion): Reorganize pointer conversions.
* pt.c (convert_nontype_argument_function): Convert to ref here.
(convert_nontype_argument): Not here.
(convert_template_argument): Add original type to error message.
(RECUR_AND_CHECK_FAILURE): Remove trailing semicolon.
(unify): Compare function-qualifiers.
* typeck.c (same_type_ignoring_top_level_qualifiers_p): Use
cp_build_qualified_type rather than TYPE_MAIN_VARIANT.

From-SVN: r241943

re PR target/78229 (ICE in redirect_eh_edge_1, at tree-eh.c:2305)

PR target/78229
* config/i386/i386.c (ix86_gimple_fold_builtin): Do not adjust
EH info even for bzhi and pdep/pext.

From-SVN: r241942

Fix dates.

From-SVN: r241941

Add missing ChangeLog entry.

* config.gcc (powerpc*-*-*, rs6000*-*-*): Remove setting of
INCLUDE_EXTRA_SPEC for Advance Toolchain builds.

From-SVN: r241939

config.gcc (powerpc*-*-*, [...]): Remove setting of INCLUDE_EXTRA_SPEC for Advance Toolchain builds.

* config.gcc (powerpc*-*-*, rs6000*-*-*): Remove setting of
INCLUDE_EXTRA_SPEC for Advance Toolchain builds.

From-SVN: r241937

gnu-versioned-namespace.ver: Export C++17 new of over-aligned types symbols.

2016-11-07  François Dumont  <fdumont@gcc.gnu.org>

* config/abi/pre/gnu-versioned-namespace.ver: Export C++17 new of
over-aligned types symbols.

From-SVN: r241936

rs6000: Do swdiv at expand time

We transform floating point divide instructions to a faster series of
simple instructions, "swdiv".  Currently we do not do that until the
first splitter pass, which is much too late for most optimisations
that can happen on those new instructions, e.g. the constant loads
are not CSEd inside an unrolled loop.  This patch changes things so
those divide instructions are expanded during expand already.

* config/rs6000/rs6000.md (div<mode>3): Expand using rs6000_emit_swdiv
if appropriate.
* config/rs6000/vector.md (div<mode>3): Ditto.

From-SVN: r241935

scanasm.exp (hidden-scan-for): Add XCOFF support.

        * lib/scanasm.exp (hidden-scan-for): Add XCOFF support.

        * gfortran.dg/implicit_class_1.f90: Skip on AIX.
        * gcc.dg/visibility-14.c: XFAIL AIX.
        * gcc.dg/visibility-15.c: XFAIL AIX.
        * gcc.dg/visibility-16.c: XFAIL AIX.
        * gcc.dg/visibility-17.c: XFAIL AIX.
        * gcc.dg/visibility-18.c: XFAIL AIX.
        * gcc.dg/visibility-19.c: XFAIL AIX.
        * g++.dg/ext/visibility/anon1.C: XFAIL AIX.
        * g++.dg/ext/visibility/anon2.C: XFAIL AIX.
        * g++.dg/ext/visibility/pragma-override1.C: XFAIL AIX.
        * g++.dg/ext/visibility/pragma-override2.C: XFAIL AIX.

From-SVN: r241934

Fix typo.

From-SVN: r241932

configure.ac (.hidden): Change to conftest_s string.

* configure.ac (.hidden): Change to conftest_s string. Provide string
for AIX assembler.
(gcc_cv_ld_hidden): Yes for AIX.
* configure: Regenerate.

* dwarf2asm.c (USE_LINKONCE_INDIRECT): Don't set for AIX (XCOFF).

* config/rs6000/rs6000-protos.h (rs6000_asm_weaken_decl): Declare
(rs6000_xcoff_asm_output_aligned_decl_common): Declare.
* config/rs6000/xcoff.h (TARGET_ASM_GLOBALIZE_DECL_NAME): Define.
(ASM_OUTPUT_ALIGNED_DECL_COMMON): Define.
(ASM_OUTPUT_ALIGNED_COMMON): Delete.
* config/rs6000/rs6000.c (rs6000_init_builtins): Change clog rename
from #if to if.
(rs6000_xcoff_visibility): New.
(rs6000_xcoff_declare_function_name): Add visibility support.
(rs6000_xcoff_asm_globalize_decl_name): New.
(rs6000_xcoff_asm_output_aligned_decl_common): New.
(rs6000_asm_weaken_decl): New.
(rs6000_code_end): Disable HIDDEN_LINKONCE on XCOFF.
config/rs6000/rs6000.h (ASM_WEAKEN_DECL): Change definition to
reference function.

From-SVN: r241930

Add template instantiations to the announce_function stream.

* pt.c (push_tinst_level_loc): Add template instantiations to the
announce_function stream.

From-SVN: r241928

re PR fortran/78226 (Fill out location information everywhere)

2016-11-07  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/78226
* expr.c (gfc_generate_initializer):  Add where to EXPR_NULL
statement.
* iresolve.c (gfc_resolve_extends_type_of):  Add where to
both arguments of the function.
* resolve.c (resolve_select_type):  Add where to the
second argument of the new statement.

From-SVN: r241927

* es.po: Update.

From-SVN: r241922

re PR driver/78206 (bootstrap failure under Apple sandbox that blacklists reads in /usr/local)

2016-11-06  Jack Howarth  <howarth.at.gcc@gmail.com>

PR driver/78206
* incpath.c: (remove_dup(): Also silently ignore EPERM.

From-SVN: r241919

Remove a TODO from verify_type_variant

2016-11-07  Martin Jambor  <mjambor@suse.cz>

* tree.c (verify_type_variant): Use pointer comparison to check that
TYPE_SIZE_UNIT match.

From-SVN: r241918

re PR target/77834 (ICE: in make_decl_rtl, at varasm.c:1311 with -O -ftree-pre -mstringop-strategy=libcall)

PR target/77834
* dse.c (dse_step5): Call scan_reads even if just
insn_info->frame_read.  Improve and fix dump file messages.

From-SVN: r241917

re PR target/78227 (ICE: unrecognizable insn: in extract_insn, at recog.c:2311 with -mavx512bw and vector comare)

PR target/78227
* config/i386/i386.c (ix86_expand_sse_cmp): Force dest into
cmp_mode argument even for -O0 if cmp_mode != mode and maskcmp.

* gcc.target/i386/pr78227-1.c: New test.
* gcc.target/i386/pr78227-2.c: New test.

From-SVN: r241916

re PR middle-end/35691 (Missed (a == 0) && (b == 0) into (a|(typeof(a)(b)) == 0 when the types don't match)

2016-11-07  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

PR middle-end/35691
* match.pd: Add following two patterns:
(x == 0 & y == 0) -> (x | typeof(x)(y)) == 0.
(x != 0 | y != 0) -> (x | typeof(x)(y)) != 0.

testsuite/
* gcc.dg/pr35691-1.c: New test-case.
* gcc.dg/pr35691-4.c: Likewise.

From-SVN: r241915

emit-rtl.c (emit_copy_of_insn_after): Duplicate notes in order.

* emit-rtl.c (emit_copy_of_insn_after): Duplicate notes in order.
* sel-sched-ir.c (create_copy_of_insn_rtx): Likewise.
* rtl.h (duplicate_reg_notes): Declare.
* rtlanal.c (duplicate_reg_note): New function.

From-SVN: r241913

re PR tree-optimization/77309 (wrong code at -Os and above on x86_64-linux-gnu (in the 64-bit mode))

PR rtl-optimization/77309
* combine.c (make_compound_operation): Allow EQ for IN_CODE, and
don't assume an equality comparison for plain COMPARE.
(simplify_comparison): Pass a more accurate code to
make_compound_operation.

testsuite/
PR rtl-optimization/77309
* gcc.dg/torture/pr77309.c: New test.

From-SVN: r241912

target.def (compute_pressure_classes): New target hook.

* target.def (compute_pressure_classes): New target hook.
* doc/tm.texi.in: Document it.
* doc/tm.texi: Regenerate.
* ira.c (setup_pressure_classes): Call target hook if defined.

From-SVN: r241911

Fixed PR in ChangeLog entry.

From-SVN: r241910

re PR fortran/78226 (Fill out location information everywhere)

2016-11-07  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/78826
* match.c (gfc_match_select_type):  Add where for expr1.
* resolve.c (resolev_select_type): Add where for expr1 of new
statement.

From-SVN: r241909

rtx_writer: avoid printing trailing default values

gcc/ChangeLog:
* print-rtl.c (rtx_writer::operand_has_default_value_p): New
method.
(rtx_writer::print_rtx): In compact mode, omit trailing operands
that have the default values.
* print-rtl.h (rtx_writer::operand_has_default_value_p): New
method.
* rtl-tests.c (selftest::test_dumping_insns): Remove empty
label string from expected dump.
(seltest::test_uncond_jump): Remove trailing "(nil)" for REG_NOTES
from expected dump.

From-SVN: r241908

Fix native windows build by adding signal.h back into the include list.

  * gcc/ada/adaint.c: Added signal.h for Windows.

From-SVN: r241907

re PR target/77834 (ICE: in make_decl_rtl, at varasm.c:1311 with -O -ftree-pre -mstringop-strategy=libcall)

PR target/77834
* alias.c (nonoverlapping_memrefs_p): If one decl is
FUNCTION_DECL or LABEL_DECL and the other is not, return 1.

From-SVN: r241905

re PR middle-end/71529 ([CHKP] ICE in expand_expr_real_1)

PR middle-end/71529
* gcc.target/i386/pr71529.C: Moved to ...
* g++.dg/opt/pr71529.C: ... here.  New test.  Guard for i?86/x86_64.

PR target/64411
* gcc.target/i386/pr64411.C: Moved to ...
* g++.dg/opt/pr64411.C: ... here.  New test.  Guard for i?86/x86_64
lp64.

PR target/65105
* gcc.target/i386/pr65105-4.C: Moved to ...
* g++.dg/opt/pr65105-4.C: ... here.  New test.  Guard for i?86/x86_64.
Run into compile test rather than execute test.

From-SVN: r241903

re PR target/78229 (ICE in redirect_eh_edge_1, at tree-eh.c:2305)

2016-11-07  Richard Biener  <rguenther@suse.de>

PR target/78229
* config/i386/i386.c (ix86_gimple_fold_builtin): Do not adjust
EH info.

* g++.dg/pr78229.C: New testcase.

From-SVN: r241901

re PR tree-optimization/78218 (wrong code at -Os and above on x86_64-linux-gnu (in both 32-bit and 64-bit modes))

2016-11-07  Richard Biener  <rguenther@suse.de>

PR tree-optimization/78218
* gimple-ssa-store-merging.c
(pass_store_merging::terminate_all_aliasing_chains):
Drop unused argument, fix alias check to also consider uses.
(pass_store_merging::execute): Adjust.

* gcc.dg/torture/pr78218.c: New testcase.

From-SVN: r241900

re PR middle-end/78228 (fstrict-overflow breaks code without overflow?)

2016-11-07  Richard Biener  <rguenther@suse.de>

PR tree-optimization/78228
* tree-ssa-phiopt.c (abs_replacement): Avoid introducing
undefined behavior.

* gcc.dg/tree-ssa/phi-opt-15.c: New testcase.

From-SVN: r241899

[AArch64] Fix PR target/77822: Use tighter predicates for zero_extract patterns

PR target/77822
* config/aarch64/aarch64.md (*tb<optab><mode>1): Use
aarch64_simd_shift_imm_<mode> predicate for operand 1.
(<optab>, ANY_EXTRACT): Use tighter predicates on operands 2 and 3
to restrict them to an appropriate range and add FAIL check if the
region they specify is out of range.  Delete useless constraint
strings.
(*<optab><mode>, ANY_EXTRACT): Add appropriate predicates on operands
2 and 3 to restrict their range and add pattern predicate.

* g++.dg/torture/pr77822.C: New test.

From-SVN: r241898

Introduce tests for -fsanitize-address-use-after-scope

* c-c++-common/asan/force-inline-opt0-1.c: Disable
-f-sanitize-address-use-after-scope.
* c-c++-common/asan/inc.c: Change number of expected ASAN_CHECK
internal fn calls.
* g++.dg/asan/use-after-scope-1.C: New test.
* g++.dg/asan/use-after-scope-2.C: Likewise.
* g++.dg/asan/use-after-scope-3.C: Likewise.
* g++.dg/asan/use-after-scope-types-1.C: Likewise.
* g++.dg/asan/use-after-scope-types-2.C: Likewise.
* g++.dg/asan/use-after-scope-types-3.C: Likewise.
* g++.dg/asan/use-after-scope-types-4.C: Likewise.
* g++.dg/asan/use-after-scope-types-5.C: Likewise.
* g++.dg/asan/use-after-scope-types.h: Likewise.
* gcc.dg/asan/use-after-scope-1.c: Likewise.
* gcc.dg/asan/use-after-scope-2.c: Likewise.
* gcc.dg/asan/use-after-scope-3.c: Likewise.
* gcc.dg/asan/use-after-scope-4.c: Likewise.
* gcc.dg/asan/use-after-scope-5.c: Likewise.
* gcc.dg/asan/use-after-scope-6.c: Likewise.
* gcc.dg/asan/use-after-scope-7.c: Likewise.
* gcc.dg/asan/use-after-scope-8.c: Likewise.
* gcc.dg/asan/use-after-scope-9.c: Likewise.
* gcc.dg/asan/use-after-scope-switch-1.c: Likewise.
* gcc.dg/asan/use-after-scope-switch-2.c: Likewise.
* gcc.dg/asan/use-after-scope-switch-3.c: Likewise.
* gcc.dg/asan/use-after-scope-goto-1.c: Likewise.
* gcc.dg/asan/use-after-scope-goto-2.c: Likewise.

From-SVN: r241897

Introduce -fsanitize-address-use-after-scope

* c-warn.c (warn_for_unused_label): Save all labels used
in goto or in &label.
* asan.c (enum asan_check_flags): Move the enum to header file.
(asan_init_shadow_ptr_types): Make type creation more generic.
(shadow_mem_size): New function.
(asan_emit_stack_protection): Use newly added ASAN_SHADOW_GRANULARITY.
Rewritten stack unpoisoning code.
(build_shadow_mem_access): Add new argument return_address.
(instrument_derefs): Instrument local variables if use after scope
sanitization is enabled.
(asan_store_shadow_bytes): New function.
(asan_expand_mark_ifn): Likewise.
(asan_sanitize_stack_p): Moved from asan_sanitize_stack_p.
* asan.h (enum asan_mark_flags): Moved here from asan.c
(asan_protect_stack_decl): Protect all declaration that need
to live in memory.
(asan_sanitize_use_after_scope): New function.
(asan_no_sanitize_address_p): Likewise.
* cfgexpand.c (partition_stack_vars): Consider
asan_sanitize_use_after_scope in condition.
(expand_stack_vars): Likewise.
* common.opt (-fsanitize-address-use-after-scope): New option.
* doc/invoke.texi (use-after-scope-direct-emission-threshold):
Explain the parameter.
* flag-types.h (enum sanitize_code): Define SANITIZE_USE_AFTER_SCOPE.
* gimplify.c (build_asan_poison_call_expr): New function.
(asan_poison_variable): Likewise.
(gimplify_bind_expr): Generate poisoning/unpoisoning for local
variables that have address taken.
(gimplify_decl_expr): Likewise.
(gimplify_target_expr): Likewise for C++ temporaries.
(sort_by_decl_uid): New function.
(gimplify_expr): Unpoison all variables for a label we can jump
from outside of a scope.
(gimplify_switch_expr): Unpoison variables defined in the switch
context.
(gimplify_function_tree): Clear asan_poisoned_variables.
(asan_poison_variables): New function.
(warn_switch_unreachable_r): Handle IFN_ASAN_MARK.
* internal-fn.c (expand_ASAN_MARK): New function.
* internal-fn.def (ASAN_MARK): Declare.
* opts.c (finish_options): Handle -fstack-reuse if
-fsanitize-address-use-after-scope is enabled.
(common_handle_option): Enable address sanitization if
-fsanitize-address-use-after-scope is enabled.
* params.def (PARAM_USE_AFTER_SCOPE_DIRECT_EMISSION_THRESHOLD):
New parameter.
* params.h: Likewise.
* sancov.c (pass_sanopt::execute): Handle IFN_ASAN_MARK.
* sanitizer.def: Define __asan_poison_stack_memory and
__asan_unpoison_stack_memory functions.
* asan.c (asan_mark_poison_p): New function.
(transform_statements): Handle asan_mark_poison_p calls.
* gimple.c (nonfreeing_call_p): Handle IFN_ASAN_MARK.

From-SVN: r241896

Fix the Windows native x86-64 build.

PR driver/78196
* Makefile.in (SELFTEST_FLAGS): Added -o /dev/null.

From-SVN: r241895

time_profiler: Set proper type to time_profiler_counter_ptr.

* tree-profile.c (gimple_gen_time_profiler): Set proper type
to time_profiler_counter_ptr.

From-SVN: r241894

re PR middle-end/37150 (basic-block vectorization misses some unrolled loops)

2016-11-07  Richard Biener  <rguenther@suse.de>

PR tree-optimization/37150
* tree-vectorizer.h (vect_transform_slp_perm_load): Add n_perms
parameter.
* tree-vect-slp.c (vect_supported_load_permutation_p): Adjust.
(vect_analyze_slp_cost_1): Account for the real number of
permutations emitted and for dead loads.
(vect_transform_slp_perm_load): Add n_perms parameter counting
the number of emitted permutations.
* tree-vect-stmts.c (vectorizable_load): Adjust.

From-SVN: r241893

re PR tree-optimization/78189 (movaps generated for unaligned store in aligned struct, when struct is referenced via unaligned member.)

2016-11-07  Richard Biener  <rguenther@suse.de>

PR tree-optimization/78189
* tree-vect-data-refs.c (vect_compute_data_ref_alignment): Fix
alignment computation.

* g++.dg/torture/pr78189.C: New testcase.

From-SVN: r241892

Daily bump.

From-SVN: r241891

* gcc.dg/Wtrampolines.c: XFAIL AIX.

From-SVN: r241888

re PR fortran/78226 (Fill out location information everywhere)

2016-11-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/78226
resolve.c (build_loc_call): Add location to return value.

From-SVN: r241887

allocate_with_source_14.f03: Fixed number mallocs occuring.

gcc/testsuite/ChangeLog:

2016-11-06  Andre Vehreschild  <vehre@gcc.gnu.org>

* gfortran.dg/allocate_with_source_14.f03: Fixed number mallocs
occuring.

gcc/fortran/ChangeLog:

2016-11-06  Andre Vehreschild  <vehre@gcc.gnu.org>

* expr.c (is_non_empty_structure_constructor): New function to detect
non-empty structure constructor.
(gfc_has_default_initializer): Analyse initializers.
* resolve.c (cond_init): Removed.
(resolve_allocate_expr): Removed dead code.  Moved invariant code out
of the loop over all objects to allocate.
(resolve_allocate_deallocate): Added the invariant code remove from
resolve_allocate_expr.
* trans-array.c (gfc_array_allocate): Removed nullify of structure
components in favour of doing this in gfc_trans_allocate for both
scalars and arrays in the same place.
* trans-expr.c (gfc_trans_init_assign): Always using _vptr->copy for
class objects.
* trans-stmt.c (allocate_get_initializer): Get the initializer
expression for object allocated.
(gfc_trans_allocate): Nullify a derived type only, when no SOURCE=
or MOLD= is present preventing duplicate work.  Moved the creation
of the init-expression here to prevent code for conditions that
can not occur on freshly allocated object, like checking for the need
to free allocatable components.

From-SVN: r241885

re PR fortran/78221 (bogus warning: Non-zero imaginary part discarded in conversion [-Wconversion])

2016-11-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/78221
        * arith.c (gfc_complex2real):  Change gfc_warning_now to
        gfc_warning.

2016-11-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/78221
        * gfortran.dg/warn_conversion_9.f90:  New test.

From-SVN: r241884

ipa-cp.c (ipcp_bits_lattice::meet_with): Remove unreachable code.

2016-11-06  Kugan Vivekanandarajah  <kuganv@linaro.org>

* ipa-cp.c (ipcp_bits_lattice::meet_with): Remove unreachable code.

From-SVN: r241883

Daily bump.

From-SVN: r241882

invoke.texi (Warning Options): Correct typos in -Walloca documentation.

gcc/ChangeLog:
* doc/invoke.texi (Warning Options): Correct typos in -Walloca
documentation.

From-SVN: r241875

* es.po: Update.

From-SVN: r241873

check.c (gfc_check_move_alloc): Introduce error to prevent aliasing between to and from arguments.

2016-11-05  Paul Thomas  <pault@gcc.gnu.org>

* check.c (gfc_check_move_alloc): Introduce error to prevent
aliasing between to and from arguments.

2016-11-05  Paul Thomas  <pault@gcc.gnu.org>

* gfortran.dg/move_alloc_17.f03: New test.

From-SVN: r241872

re PR ipa/78188 (AIX Bootstrap broken by tree-vrp.c change)

2016-11-05  Richard Biener  <rguenther@suse.de>

        PR bootstrap/78188
        * g++.dg/ipa/pr78188.C: New test.

From-SVN: r241871

re PR fortran/69495 (unused-label warning does not tell which flag triggered it)

2016-11-05  Janus Weil  <janus@gcc.gnu.org>
    Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

PR fortran/69495
* invoke.texi: Mention -Wpedantic as an alias of -pedantic.
* check.c (gfc_check_transfer): Mention responsible flag in warning
message.
* frontend-passes.c (do_warn_function_elimination): Ditto.
* resolve.c (resolve_elemental_actual): Ditto.
(resolve_operator): Ditto.
(warn_unused_fortran_label): Ditto.
* trans-common.c (translate_common): Ditto.

2016-11-05  Janus Weil  <janus@gcc.gnu.org>
    Dominique d'Humieres  <dominiq@lps.ens.fr>

PR fortran/69495
* gfortran.dg/elemental_optional_args_6.f90: Use -Wpedantic flag.

Co-Authored-By: Dominique d'Humieres <dominiq@lps.ens.fr>
Co-Authored-By: Manuel López-Ibáñez <manu@gcc.gnu.org>
From-SVN: r241870

re PR fortran/67564 (Segfault on sourced allocattion statement with class(*) arrays)

2016-11-05  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/67564
* trans-expr.c (gfc_conv_class_to_class): Return _len component
of unlimited polymorphic entities.

2016-11-05  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/67564
* gfortran.dg/select_type_39.f03: New test.

From-SVN: r241869

re PR go/78172 (gen-sysinfo.go vs AIX cred.h)

PR go/78172.
    libgo: avoid confusion in upcase_fields in mksysinfo.sh

    The mksysinfo.sh script could get confused when there were multiple
    types starting with the same name.  I believe this is the underlying
    cause of GCC PR 78172.

    Also redirect a grep to /dev/null to avoid extraneous messages during
    the build.

    Reviewed-on: https://go-review.googlesource.com/32821

From-SVN: r241868

Daily bump.

From-SVN: r241867

libiberty: Fix -Wimplicit-fallthrough warnings.

Adjust some comments, add some explicit fall through comments or explicit
returns where necessary to not get implicit-fallthrough warnings.

All fall throughs were deliberate. In one case I added an explicit return
false for clarity instead of falling through a default case (that also
would return false).

libiberty/ChangeLog:

       * cplus-dem.c (demangle_signature): Move fall through comment.
       (demangle_fund_type): Add fall through comment between 'G' and 'I'.
       * hashtab.c (iterative_hash): Add fall through comments.
       * regex.c (regex_compile): Add Fall through comment after '+'/'?'.
       (byte_re_match_2_internal): Add Fall through comment after jump_n.
       Change "Note fall through" to "Fall through".
       (common_op_match_null_string_p): Return false after set_number_at
       instead of fall through.

From-SVN: r241864

re PR ipa/78188 (AIX Bootstrap broken by tree-vrp.c change)

PR bootstrap/78188
PR c++/71848
* ipa-comdats.c (pass_ipa_comdats::gate): Require HAVE_COMDAT_GROUP.

From-SVN: r241863

re PR fortran/64933 (ASSOCIATE on a character variable does not allow substring expressions)

2016-04-19  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/64933
* primary.c (gfc_match_varspec): If selector expression is
unambiguously an array, make sure that the associate name
is an array and has an array spec. Modify the original
condition for doing this to exclude character types.

2016-04-19  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/64933
* gfortran.dg/associate_23.f90: New test.

From-SVN: r241860