In 64-bit mode, SSE2 can be used to emulate MMX instructions without
3DNOW. We can use SSE2 to support MMX register modes.
PR target/89021
* config/i386/i386-c.c (ix86_target_macros_internal): Define
__MMX_WITH_SSE__ for TARGET_MMX_WITH_SSE.
* config/i386/i386.c (ix86_set_reg_reg_cost): Add support for
TARGET_MMX_WITH_SSE with VALID_MMX_REG_MODE.
(ix86_vector_mode_supported_p): Likewise.
* config/i386/i386.h (TARGET_MMX_WITH_SSE): New.
From-SVN: r271213
2019-05-15 Richard Biener <rguenther@suse.de>
* tree-into-ssa.c (pass_build_ssa::execute): Run
update_address_taken before going into SSA.
From-SVN: r271209
2019-05-15 Richard Biener <rguenther@suse.de>
PR c/90474
* c-common.c (c_common_mark_addressable_vec): Also mark
a COMPOUND_LITERAL_EXPR_DECL addressable similar to
c_mark_addressable.
From-SVN: r271206
If we build Darwin with a modern assembler, then it might well
recognise insns that cannot be used on current Darwin systems.
The patch augments the tests for feature support for VSX,
power8 and power9 to exclude Darwin even if the assembler can
handle the instructions.
2019-05-15 Iain Sandoe <iain@sandoe.co.uk>
* lib/target-supports.exp
(check_effective_target_powerpc_p8vector_ok): No support for Darwin.
(check_effective_target_powerpc_p9vector_ok): Likewise.
(check_effective_target_powerpc_float128_sw_ok): Likewise.
(check_effective_target_powerpc_float128_hw_ok): Likewise.
(check_effective_target_powerpc_vsx_ok): Likewise.
* gcc.target/powerpc/bfp/bfp.exp: Don't try to run this for Darwin.
* gcc.target/powerpc/dfp/dfp.exp: Likewise.
From-SVN: r271205
This patch makes the lto-plugin follow the same approach
to save-temps as collect2.
-save-temps causes the temp file to be named meaningfully,
and for the relevant input files to be saved in CWD.
-v, —version causes the save actions to be output to stderr.
one can get this to happen by just putting -save-temps, -v on
the regular link line or (for compatibility with the way the
-debug flag works) by appending -plugin-opt=-save-temps, etc.
lto-plugin/
2019-05-15 Iain Sandoe <iain@sandoe.co.uk>
* lto-plugin.c (exec_lto_wrapper): Make the wrapper
arguments filename more user-friendly.
(file_exists, maybe_unlink): New.
(cleanup_handler): Use maybe unlink to handle the
case when temps should be saved.
(process_option): Look for -v, —-version, -save-temps.
(onload): Record the linker output file name.
Check for -v, —-version, -save-temps in the GCC collect
options environment.
From-SVN: r271202
The test fails on PPC Darwin because we emit
__POWERPC__ instead of __powerpc__ fixed by allowing
for both.
2019-05-15 Iain Sandoe <iain@sandoe.co.uk>
* gcc.dg/pr87600.h: Add __POWERPC__ as an alternate test
for PowerPC platforms.
From-SVN: r271200
Darwin doesn't support mx32, and some tests were
failing because it was trying to do them. When we
disable this it turns out that quite a few tests
requiring mx32 support were not guarded.
gcc/
2019-05-14 Iain Sandoe <iain@sandoe.co.uk>
PR target/82920
* config/i386/darwin.h (CC1_SPEC): Report -mx32 as an error for
Darwin.
gcc/testsuite/
2019-05-14 Iain Sandoe <iain@sandoe.co.uk>
PR target/82920
* gcc.target/i386/cet-sjlj-6b.c: Require effective target x32.
* gcc.target/i386/pr52146.c: Likewise.
* gcc.target/i386/pr52698.c: Likewise.
* gcc.target/i386/pr52857-1.c: Likewise.
* gcc.target/i386/pr52857-2.c: Likewise.
* gcc.target/i386/pr52876.c: Likewise.
* gcc.target/i386/pr53698.c: Likewise.
* gcc.target/i386/pr54157.c: Likewise.
* gcc.target/i386/pr55049-1.c: Likewise.
* gcc.target/i386/pr55093.c: Likewise.
* gcc.target/i386/pr55116-1.c: Likewise.
* gcc.target/i386/pr55116-2.c: Likewise.
* gcc.target/i386/pr55597.c: Likewise.
* gcc.target/i386/pr59929.c: Likewise.
* gcc.target/i386/pr66470.c: Likewise.
From-SVN: r271190
We currently call rs6000_emit_epilogue with a boolean parameter saying
if this is for a sibcall. We also need to create epilogues for
eh_return. This isn't yet indicated directly: instead, we get an
eh_return epilogue if crtl->calls_eh_return and this is not a sibcall.
This patch changes things so there is a three-way enum argument.
What is called "normal" now can still actually be "eh_return". The
rs6000_emit_epilogue function still uses an "int sibcall" variable
internally.
* config/rs6000/rs6000-protos.h (rs6000_emit_epilogue): Change
arguments.
* config/rs6000/rs6000.c (rs6000_emit_epilogue): Change arguments.
* config/rs6000/rs6000.md (epilogue_type): New define_enum.
(sibcall_epilogue): Adjust.
(epilogue): Adjust.
From-SVN: r271184
This change simplifies visitation for variants, by using INVOKE<R> for
the visit<R> form, and explicitly specifying the tag types for raw
visitation, instead of inferring them from the return types of the
lambda functions used as visitors.
* include/std/variant (__visit_with_index): Remove typedef.
(__deduce_visit_result): New tag type.
(__raw_visit, __raw_idx_visit): New helper functions for "raw"
visitation of possibly-valueless variants, forwarding to __do_visit
with the relevant tag type.
(_Variant_storage<false, _Types...>::_M_reset_impl): Use __raw_visit
and make lambda return void.
(__variant_construct): Likewise.
(_Copy_assign_base::operator=, _Move_assign_base::operator=): Use
__raw_idx_visit and make lambda return void.
(_Multi_array::__untag_result): Add metafunction to check the function
pointer type for a tag type that dictates the kind of visitation.
(_Multi_array<_Ret(*)(_Visitor, _Variants...), __first, __rest...>):
Use decltype(auto) instead of tagged function pointer type.
(__gen_vtable_impl): Remove bool non-type parameter and unused
_Variant_tuple parameter.
(__gen_vtable_impl::__visit_invoke_impl): Remove.
(__gen_vtable_impl::__do_visit_invoke): Remove.
(__gen_vtable_impl::__do_visit_invoke_r): Remove.
(__gen_vtable_impl::__visit_invoke): Use if-constexpr and __invoke_r
for the visit<R> case, rather than dispatching to separate functions.
(_VARIANT_RELATION_FUNCTION_TEMPLATE): Use __raw_idx_visit and make
lambda return void.
(variant::swap): Likewise.
(__do_visit): Replace two non-type template parameters with a single
type parameter, so that the caller must specify the visitor's return
type (or one of the tag types).
(visit): Deduce a return type from the visitor and use the
__deduce_visit_result tag to enforce that all overloads return the
same type.
(visit<R>): Call __do_visit<R> with explicit result type.
(__variant_hash_call_base_impl::operator()): Use __raw_visit and make
lambda return void.
From-SVN: r271182
* config/i386/i386.md (any_div): New code iterator.
(paired_mod): New code attribute.
(sgnprefix): Handle DIV and UDIV RTXes.
(u): Ditto.
(<u>divmod<mode>4): Macroize expander from divmod<mode>4
and udivmod<mode>4 patterns using any_div code iterator.
(divmod splitters): Macroize splitters using any_div code iterator.
(*udivmodsi4_pow2_zext_1): Use exactl_log2 in insn condition.
(*udivmodsi4_pow2_zext_2): Ditto.
(*<u>divmod<mode>4_noext): Macroize insn from *divmod<mode>4_noext
and *udivmod<mode>4_noext patterns using any_div code iterator.
(*<u>divmod<mode>4_noext_zext_1): Macroize insn from
*divmod<mode>4_noext_zext_1 and *udivmod<mode>4_noext_zext_1
patterns using any_div code iterator.
(*<u>divmod<mode>4_noext_zext_2): Macroize insn from
*divmod<mode>4_noext_zext_2 and *udivmod<mode>4_noext_zext_2
patterns using any_div code iterator.
(<u>divmodhiqi3): Macroize insn from divmodhiqi3 and
udivmodhiqi3 patterns using any_extend code iterator.
From-SVN: r271179
2019-05-14 Nina Dinka Ranns <dinka.ranns@gmail.com>
nonesuch is insufficiently useless (lwg2996)
* include/std/type_traits (struct __nonesuch): Added private base
class to make __nonesuch not an aggregate and removed deleted default
constructor.
* include/bits/stl_pair.h (struct __nonesuch_no_braces): Removed.
(operator=(const pair&)): Use __nonesuch instead of
__nonesuch_no_braces.
(operator=(pair&&)): Likewise
* include/std/tuple (operator=(const tuple&)): Use __nonesuch instead
of __nonesuch_no_braces.
(operator=(tuple&&)): Likewise
* include/experimental/type_traits (struct nonesuch): Added private
base class to make nonesuch not an aggregate and removed deleted
default constructor.
* testsuite/20_util/nonesuch/nonesuch.cc: New.
* testsuite/experimental/type_traits/nonesuch.cc: New.
From-SVN: r271175
As well as simpifying the code by removing duplication, this means that
we only need to touch std::__invoke_r if we need to implement changes to
INVOKE<R>, such as those in P0932R0.
* include/bits/std_function.h (_Simple_type_wrapper): Remove.
(_Function_handler): Remove partial specializations for void return
types and pointers to member.
(_Function_handler::_M_manager): Adapt to removal of
_Simple_type_wrapper.
(_Function_handler::_M_invoke): Use __invoke_r instead of __invoke.
* include/std/functional (_Bind_result::__enable_if_void)
(_Bind_result::__disable_if_void): Remove sfinae helpers.
(_Bind_result::__call): Use __invoke_r and remove overloads for void
return types.
* include/std/future (__future_base::_Task_state::_M_run)
(__future_base::_Task_state::_M_run_delayed): Use __invoke_r and
change return type of lambda expressions.
From-SVN: r271174
* include/bits/invoke.h (__invoke_r): Define new function implementing
the INVOKE<R> pseudo-function.
* testsuite/20_util/function_objects/invoke/1.cc: Add more tests.
* testsuite/20_util/function_objects/invoke/2.cc: New test.
From-SVN: r271173
Revise the gccgo version of memory/block/mutex profiling to reduce
runtime overhead. The main change is to collect raw stack traces while
the profile is on line, then post-process the stacks just prior to the
point where we are ready to use the final product. Memory profiling
(at a very low sampling rate) is enabled by default, and the overhead
of the symbolization / DWARF-reading from backtrace_full was slowing
things down relative to the main Go runtime.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/171497
From-SVN: r271172
The definition of is_nothrow_invocable in terms of is_convertible and
is_nothrow_constructible is incorrect, because a type could have an
explicit constructor that means is_nothrow_constructible is true, but
implicit conversions could use a different constructor that is
potentially-throwing.
Fix it by adding a C++11 version of C++20's is_nothrow_convertible that
only considers implicit conversions.
* include/std/type_traits (__is_nt_convertible_helper): Define it
unconditionally, not only for C++20.
(__is_nothrow_convertible): Define internal trait for use in C++11.
(__is_nt_invocable_impl: Fix by using __is_nothrow_convertible.
(is_invocable_r_v, is_nothrow_invocable_r_v): Add missing parameter.
* testsuite/20_util/is_nothrow_convertible/value_ext.cc: New test.
* testsuite/20_util/is_nothrow_convertible/value.cc: Check with type
that has nothrow explicit conversion but potentially-throwing implicit
conversion.
* testsuite/20_util/is_nothrow_invocable/value.cc: Likewise.
* testsuite/20_util/is_nothrow_invocable/value_ext.cc: Fix helper
function to only consider implicit conversions.
* testsuite/20_util/tuple/cons/noexcept_specs.cc: Add comment.
From-SVN: r271171
As both callers of match_results::_M_resize(unsigned) immediately follow
it with a loop to update the value of each sub_match, that behaviour can
be moved into _M_resize itself. The first caller fills the container
with unmatched subs, which can be done with vector::assign, and the
second caller clears the container to establish a specific state, which
can be provided by a new member function specific to that purpose.
Tangentially, I also noticed that match_results::max_size() doesn't
account for the three special sub_match objects that are always present
in a fully established result state. This patch also fixes that.
* include/bits/regex.h (match_results::max_size()): Adjust return
value to account for prefix/suffix/unmatched subs.
(match_results::_M_resize(unsigned int)): Use _Base_type::assign to
reset the contained sub matches.
(match_results::_M_establish_failed_match(_Bi_iter)): Add new member
function to set result state following a failed match.
* include/bits/regex.tcc (__regex_algo_impl): Remove loop to set
sub_match states after _M_resize. Use _M_establish_failed_match.
From-SVN: r271167
The std::thread constructor creates (and then moves) an unnecessary
temporary copy of each argument. Optimize it to only make the one copy
that is required.
PR libstdc++/69724
* include/std/thread (thread::_State_impl, thread::_S_make_state):
Replace single _Callable parameter with variadic _Args pack, to
forward them directly to the tuple of decayed copies.
* testsuite/30_threads/thread/cons/69724.cc: New test.
From-SVN: r271166
2019-05-14 Paolo Carlini <paolo.carlini@oracle.com>
PR preprocessor/90382
* decl.c (grokdeclarator): Fix value assigned to typespec_loc, use
min_location.
2019-05-14 Paolo Carlini <paolo.carlini@oracle.com>
PR preprocessor/90382
* g++.dg/diagnostic/trailing1.C: New test.
From-SVN: r271164
* testsuite/20_util/allocator_traits/members/allocate_hint_nonpod.cc:
Use operator-> to access raw pointer member.
* testsuite/23_containers/vector/59829.cc: Likewise.
* testsuite/23_containers/vector/bool/80893.cc: Likewise.
* testsuite/libstdc++-prettyprinters/cxx11.cc: Use NullablePointer.
* testsuite/util/testsuite_allocator.h (NullablePointer): New utility
for tests.
(PointerBase, PointerBase_void): Derive from NullablePointer and use
its constructors and equality operators. Change converting
constructors to use operator-> to access private member of the other
pointer type.
(PointerBase_void::operator->()): Add, for access to private member.
(operator-(PointerBase, PointerBase)): Change to hidden friend.
(operator==(PointerBase, PointerBase)): Remove.
(operator!=(PointerBase, PointerBase)): Remove.
From-SVN: r271160
The printer was confused when unique_ptr<T,D>::pointer is an empty
class, or the deleter is not empty. Instead of assuming the tuple has a
single _M_head_impl member manually inspect the tuple base classes to
get the first element.
* python/libstdcxx/v6/printers.py (UniquePointerPrinter.__init__): Do
not assume field called _M_head_impl is the first tuple element.
* testsuite/libstdc++-prettyprinters/compat.cc: Make tuple
implementation more accurate.
* testsuite/libstdc++-prettyprinters/cxx11.cc: Check unique_ptr with
empty pointer type and non-empty deleter.
From-SVN: r271159
* include/bits/unique_ptr.h (__uniq_ptr_impl): Add move constructor,
move assignment operator.
(__uniq_ptr_impl::release(), __uniq_ptr_impl::reset(pointer)): Add.
(__uniq_ptr_data): New class template with conditionally deleted
special members.
(unique_ptr, unique_ptr<T[], D>): Change type of data member from
__uniq_ptr_impl<T, D> to __uniq_ptr_data<T, D>. Define move
constructor and move assignment operator as defaulted.
(unique_ptr::release(), unique_ptr<T[], D>::release()): Forward to
__uniq_ptr_impl::release().
(unique_ptr::reset(pointer), unique_ptr<T[], D>::reset<U>(U)): Forward
to __uniq_ptr_impl::reset(pointer).
* python/libstdcxx/v6/printers.py (UniquePointerPrinter.__init__):
Check for new __uniq_ptr_data type.
* testsuite/20_util/unique_ptr/dr2899.cc: New test.
From-SVN: r271158
