Message ID | 20240228192843.188979-13-kmatsui@gcc.gnu.org |
---|---|
State | Unresolved |
Headers |
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Series |
Optimize more type traits
|
|
Checks
Context | Check | Description |
---|---|---|
snail/gcc-patch-check | warning | Git am fail log |
Commit Message
Ken Matsui
Feb. 28, 2024, 7:26 p.m. UTC
This patch optimizes the compilation performance of std::remove_extent
by dispatching to the new __remove_extent built-in trait.
libstdc++-v3/ChangeLog:
* include/std/type_traits (remove_extent): Use __remove_extent
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 6346d1daee2..73ddce351fd 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -2092,6 +2092,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION // Array modifications. /// remove_extent +#if _GLIBCXX_USE_BUILTIN_TRAIT(__remove_extent) + template<typename _Tp> + struct remove_extent + { using type = __remove_extent(_Tp); }; +#else template<typename _Tp> struct remove_extent { using type = _Tp; }; @@ -2103,6 +2108,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION template<typename _Tp> struct remove_extent<_Tp[]> { using type = _Tp; }; +#endif /// remove_all_extents template<typename _Tp>