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| author | Ken Matsui <kmatsui@gcc.gnu.org> | 2024-02-19 18:13:01 -0800 |
|---|---|---|
| committer | Ken Matsui <kmatsui@gcc.gnu.org> | 2024-06-13 05:56:53 -0700 |
| commit | dbb26feeb67d033d9dff51042044997aa5db9226 (patch) | |
| tree | 5f49b8b986b84832599c0fec1c6a2230b6a3f39b | |
| parent | 6f0dfa6f1acdf78d764d6f5d6f53c2f2a768c047 (diff) | |
| download | gcc-dbb26feeb67d033d9dff51042044997aa5db9226.zip gcc-dbb26feeb67d033d9dff51042044997aa5db9226.tar.gz gcc-dbb26feeb67d033d9dff51042044997aa5db9226.tar.bz2 | |
libstdc++: Optimize std::is_invocable compilation performance
This patch optimizes the compilation performance of std::is_invocable
by dispatching to the new __is_invocable built-in trait.
libstdc++-v3/ChangeLog:
* include/std/type_traits (is_invocable): Use __is_invocable
built-in trait.
* testsuite/20_util/is_invocable/incomplete_args_neg.cc: Handle
the new error from __is_invocable.
* testsuite/20_util/is_invocable/incomplete_neg.cc: Likewise.
Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org>
Reviewed-by: Patrick Palka <ppalka@redhat.com>
Reviewed-by: Jonathan Wakely <jwakely@redhat.com>
| -rw-r--r-- | libstdc++-v3/include/std/type_traits | 4 | ||||
| -rw-r--r-- | libstdc++-v3/testsuite/20_util/is_invocable/incomplete_args_neg.cc | 1 | ||||
| -rw-r--r-- | libstdc++-v3/testsuite/20_util/is_invocable/incomplete_neg.cc | 1 |
3 files changed, 6 insertions, 0 deletions
diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 5402574..fcaff88 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -3201,7 +3201,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION /// std::is_invocable template<typename _Fn, typename... _ArgTypes> struct is_invocable +#if _GLIBCXX_USE_BUILTIN_TRAIT(__is_invocable) + : public __bool_constant<__is_invocable(_Fn, _ArgTypes...)> +#else : __is_invocable_impl<__invoke_result<_Fn, _ArgTypes...>, void>::type +#endif { static_assert(std::__is_complete_or_unbounded(__type_identity<_Fn>{}), "_Fn must be a complete class or an unbounded array"); diff --git a/libstdc++-v3/testsuite/20_util/is_invocable/incomplete_args_neg.cc b/libstdc++-v3/testsuite/20_util/is_invocable/incomplete_args_neg.cc index a575750..9619129 100644 --- a/libstdc++-v3/testsuite/20_util/is_invocable/incomplete_args_neg.cc +++ b/libstdc++-v3/testsuite/20_util/is_invocable/incomplete_args_neg.cc @@ -18,6 +18,7 @@ // <http://www.gnu.org/licenses/>. // { dg-error "must be a complete class" "" { target *-*-* } 0 } +// { dg-prune-output "invalid use of incomplete type" } #include <type_traits> diff --git a/libstdc++-v3/testsuite/20_util/is_invocable/incomplete_neg.cc b/libstdc++-v3/testsuite/20_util/is_invocable/incomplete_neg.cc index 0584860..b478ebc 100644 --- a/libstdc++-v3/testsuite/20_util/is_invocable/incomplete_neg.cc +++ b/libstdc++-v3/testsuite/20_util/is_invocable/incomplete_neg.cc @@ -18,6 +18,7 @@ // <http://www.gnu.org/licenses/>. // { dg-error "must be a complete class" "" { target *-*-* } 0 } +// { dg-prune-output "invalid use of incomplete type" } #include <type_traits> |