Message ID | 20240502161614.3705912-15-kmatsui@gcc.gnu.org |
---|---|
State | New |
Headers |
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Series |
Optimize more type traits
|
|
Commit Message
Ken Matsui
May 2, 2024, 4:13 p.m. UTC
This patch optimizes the compilation performance of
std::remove_all_extents by dispatching to the new
__builtin_remove_all_extents trait.
libstdc++-v3/ChangeLog:
* include/std/type_traits (remove_all_extents): Use
__builtin_remove_all_extents 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 36136440fdd..8f756712c63 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(__builtin_remove_all_extents) + template<typename _Tp> + struct remove_all_extents + { using type = __builtin_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