PR target/64263
* config/aarch64/aarch64.md (*movsi_aarch64): Don't split if the
destination is not a GP reg.
(*movdi_aarch64): Likewise.
* gcc.target/aarch64/pr64263_1.c: New test.
Co-Authored-By: Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
From-SVN: r219745
2015-01-16 Richard Biener <rguenther@suse.de>
PR middle-end/64614
* tree-ssa-uninit.c: Include tree-cfg.h.
(MAX_SWITCH_CASES): New define.
(convert_control_dep_chain_into_preds): Handle switch statements.
(is_pred_expr_subset_of): Handle x == CST vs. (x & CST) != 0.
(normalize_one_pred_1): Do not split bit-manipulations.
Record (x & CST).
* gcc.dg/uninit-18.c: New testcase.
From-SVN: r219739
gcc/
* simplify-rtx.c (simplify_replace_fn_rtx): Simplify (lo_sum
(high x) y) to y if x and y have the same base.
gcc/testsuite/
* gcc.c-torture/compile/20150108.c: New test.
From-SVN: r219729
gcc/
* config/arm/cortex-a57.md: New.
* config/aarch64/aarch64.md: Include it.
* config/aarch64/aarch64-cores.def (cortex-a57): Tune for it.
* config/aarch64/aarch64-tune.md: Regenerate.
From-SVN: r219724
A recent libffi upgrade caused the reflect test to fail on
386. The problem case is a function that returns an empty
struct--a struct with no fields. The libffi library does not
recognize the existence of empty structs, presumably since
they can't happen in C. To work around this, the Go interface
to the libffi library changes an empty struct to void. This
normally works fine, but with the new libffi upgrade it fails
for a function that returns an empty struct. On 386 a
function that returns a struct is expected to pop the hidden
pointer when it returns. So when we convert an empty struct
to void, libffi is calling a function that pops the hidden
pointer but does not expect that to happen.
In the older version of libffi, this didn't matter, because
the libffi code for 386 used a frame pointer, so the fact that
the stack pointer was wonky when the function returned was
ignored as the stack pointer was immediately replaced by the
saved frame pointer. In the newer version of libffi, the 386
code is more efficient and does not use a frame pointer, and
therefore it matters whether libffi expects the function to
pop the hidden pointer or not.
This patch changes libgo to convert an empty to a struct with
a single field of type void. This seems to be enough to get
the test cases working again.
Of course the real fix would be to change libffi to handle
empty types, but as libffi uses size == 0 as a marker for an
uninitialized type, that would be a non-trivial change.
From-SVN: r219701
2015-01-15 Sandra Loosemore <sandra@codesourcery.com>
PR target/59710
gcc/
* doc/invoke.texi (Option Summary): Document new Nios II
-mgpopt= syntax.
(Nios II Options): Likewise.
* config/nios2/nios2.opt: Add -mgpopt= option support.
Modify existing -mgpopt and -mno-gpopt options to be aliases.
* config/nios2/nios2-opts.h (enum nios2_gpopt_type): New.
* config/nios2/nios2.c (nios2_option_override): Adjust
-mgpopt defaulting.
(nios2_in_small_data_p): Return true for explicit small data
sections even with -G0.
(nios2_symbol_ref_in_small_data_p): Adjust to handle new -mgpopt=
option choices.
gcc/testsuite/
* gcc.target/nios2/gpopt-all.c: New test case.
* gcc.target/nios2/gpopt-local.c: New test case.
* gcc.target/nios2/gpopt-global.c: New test case.
* gcc.target/nios2/gpopt-data.c: New test case.
* gcc.target/nios2/gpopt-none.c: New test case.
From-SVN: r219700
* flag-types.h (enum sanitize_code): Add SANITIZE_VPTR,
include SANITIZE_VPTR in SANITIZE_UNDEFINED.
* opts.c (common_handle_option): Add -fsanitize=vptr.
* sanitizer.def (BUILT_IN_UBSAN_HANDLE_DYNAMIC_TYPE_CACHE_MISS,
BUILT_IN_UBSAN_HANDLE_DYNAMIC_TYPE_CACHE_MISS_ABORT): New.
* ubsan.h (enum ubsan_null_ckind): Add UBSAN_DOWNCAST_POINTER,
UBSAN_DOWNCAST_REFERENCE, UBSAN_UPCAST and UBSAN_CAST_TO_VBASE.
(ubsan_expand_vptr_ifn): New prototype.
* internal-fn.c (expand_ANNOTATE, expand_GOMP_SIMD_LANE,
expand_GOMP_SIMD_VF, expand_GOMP_SIMD_LAST_LANE, expand_UBSAN_NULL,
expand_UBSAN_BOUNDS, expand_UBSAN_OBJECT_SIZE, expand_ASAN_CHECK,
expand_LOOP_VECTORIZED): Make argument nameless, remove
ATTRIBUTE_UNUSED.
(expand_UBSAN_VPTR): New function.
* internal-fn.def (UBSAN_NULL, ASAN_CHECK): Use R instead of W
in fn spec.
(UBSAN_VPTR): New internal function.
* sanopt.c (tree_map_traits): Renamed to ...
(sanopt_tree_map_traits): ... this.
(sanopt_tree_triplet, sanopt_tree_triplet_map_traits): New classes.
(sanopt_ctx): Adjust asan_check_map type for tree_map_traits
to sanopt_tree_map_traits renaming. Add vptr_check_map field.
(maybe_optimize_ubsan_vptr_ifn): New function.
(sanopt_optimize_walker): Handle IFN_UBSAN_VPTR.
(pass_sanopt::execute): Likewise. Call sanopt_optimize even for
-fsanitize=vptr.
* tree-ssa-alias.c (call_may_clobber_ref_p_1): Handle certain
internal calls like pure functions for aliasing, even when they
have other side-effects that prevent making them ECF_PURE.
* ubsan.c (ubsan_vptr_type_cache_decl): New variable.
(ubsan_expand_vptr_ifn): New function.
cp/
* cp-gimplify.c (cp_genericize_r): Call
cp_ubsan_maybe_instrument_member_call for member calls.
(cp_ubsan_check_member_access_r): New function.
(cp_genericize_tree): Call cp_ubsan_instrument_member_accesses.
* cp-tree.h (cp_ubsan_maybe_instrument_member_call,
cp_ubsan_instrument_member_accesses,
cp_ubsan_maybe_instrument_downcast,
cp_ubsan_maybe_instrument_cast_to_vbase): New prototypes.
* cp-ubsan.c: New file.
* Make-lang.in (CXX_AND_OBJCXX_OBJS): Add cp/cp-ubsan.o.
* constexpr.c (cxx_eval_call_expression): Return void_node
for IFN_UBSAN_VPTR.
(potential_constant_expression_1): Return true for
UBSAN_NULL, UBSAN_BOUNDS and UBSAN_VPTR internal calls.
* typeck.c (build_class_member_access_expr): Provide locus
for COMPONENT_REFs.
(build_static_cast_1): Instrument downcasts.
* class.c (build_base_path): For -fsanitize=vptr and !fixed_type_p
add ubsan instrumentation for virtual_access.
* call.c: Include internal-fn.h.
(set_flags_from_callee): Handle internal calls.
gcc/testsuite/
* g++.dg/ubsan/vptr-1.C: New test.
* g++.dg/ubsan/vptr-2.C: New test.
* g++.dg/ubsan/vptr-3.C: New test.
* g++.dg/ubsan/vptr-4.C: New test.
* g++.dg/ubsan/vptr-5.C: New test.
* g++.dg/ubsan/vptr-6.C: New test.
* g++.dg/ubsan/vptr-7.C: New test.
* g++.dg/ubsan/vptr-8.C: New test.
* g++.dg/ubsan/vptr-9.C: New test.
From-SVN: r219695
contrib/
* update-copyright.py (Copyright.__init__): Add a regexp for
"copyright = u'".
(Copyright.update_copyright): Don't add a space before the year
in that case.
From-SVN: r219692
PR c++/59366
* name-lookup.c (pushdecl_maybe_friend_1): Hide friend functions
and function templates, declared only in the class.
* decl.c (duplicate_decls): Reveal hidden friend functions or
function templates, if they are redeclared outside the class.
From-SVN: r219689
