Richard Biener [Wed, 9 Nov 2016 08:19:05 +0000 (08:19 +0000)]
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.
Maxim Ostapenko [Tue, 8 Nov 2016 22:15:35 +0000 (22:15 +0000)]
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.
Maxim Ostapenko [Tue, 8 Nov 2016 22:07:50 +0000 (22:07 +0000)]
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.
Maxim Ostapenko [Tue, 8 Nov 2016 22:06:02 +0000 (22:06 +0000)]
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.
Martin Liska [Tue, 8 Nov 2016 12:28:33 +0000 (13:28 +0100)]
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.
Richard Biener [Tue, 8 Nov 2016 10:23:57 +0000 (10:23 +0000)]
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.
Richard Biener [Tue, 8 Nov 2016 08:06:42 +0000 (08:06 +0000)]
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.
Richard Biener [Tue, 8 Nov 2016 08:03:54 +0000 (08:03 +0000)]
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.
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.
Jason Merrill [Mon, 7 Nov 2016 23:09:21 +0000 (18:09 -0500)]
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.
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.
Thomas Koenig [Mon, 7 Nov 2016 19:33:27 +0000 (19:33 +0000)]
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.
Bernd Schmidt [Mon, 7 Nov 2016 16:59:11 +0000 (16:59 +0000)]
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.
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.
Jakub Jelinek [Mon, 7 Nov 2016 13:07:32 +0000 (14:07 +0100)]
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.
Richard Biener [Mon, 7 Nov 2016 12:26:00 +0000 (12:26 +0000)]
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.
Kyrylo Tkachov [Mon, 7 Nov 2016 11:43:57 +0000 (11:43 +0000)]
[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.
Martin Liska [Mon, 7 Nov 2016 10:23:38 +0000 (11:23 +0100)]
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.
Richard Biener [Mon, 7 Nov 2016 08:06:08 +0000 (08:06 +0000)]
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.
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.
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.
Mark Wielaard [Fri, 4 Nov 2016 23:55:01 +0000 (23:55 +0000)]
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.
Paul Thomas [Fri, 4 Nov 2016 19:23:44 +0000 (19:23 +0000)]
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.
Bill Schmidt [Fri, 4 Nov 2016 18:15:30 +0000 (18:15 +0000)]
rs6000.c (gimple-ssa.h): New #include.
[gcc]
2016-11-04 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* config/rs6000/rs6000.c (gimple-ssa.h): New #include.
(TARGET_GIMPLE_FOLD_BUILTIN): Define as
rs6000_gimple_fold_builtin.
(rs6000_gimple_fold_builtin): New function. Add handling for
early expansion of vector addition builtins.
[gcc/testsuite]
2016-11-04 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
projects / thirdparty / gcc.git / log
