Message ID | 20240221093616.4001742-14-kmatsui@gcc.gnu.org |
---|---|
State | Superseded |
Headers |
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Series |
[v13,01/26] c++: Implement __is_const built-in trait
|
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Commit Message
Ken Matsui
Feb. 21, 2024, 9:36 a.m. UTC
This patch optimizes the compilation performance of
std::remove_all_extents by dispatching to the new __remove_all_extents
built-in trait.
libstdc++-v3/ChangeLog:
* include/std/type_traits (remove_all_extents): Use
__remove_all_extents built-in trait.
Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org>
---
libstdc++-v3/include/std/type_traits | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 73ddce351fd..34475e6279a 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -2111,6 +2111,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION #endif /// remove_all_extents +#if _GLIBCXX_USE_BUILTIN_TRAIT(__remove_all_extents) + template<typename _Tp> + struct remove_all_extents + { using type = __remove_all_extents(_Tp); }; +#else template<typename _Tp> struct remove_all_extents { using type = _Tp; }; @@ -2122,6 +2127,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION template<typename _Tp> struct remove_all_extents<_Tp[]> { using type = typename remove_all_extents<_Tp>::type; }; +#endif #if __cplusplus > 201103L /// Alias template for remove_extent