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| author | Ken Matsui <kmatsui@gcc.gnu.org> | 2023-03-20 14:05:48 -0700 |
|---|---|---|
| committer | Ken Matsui <kmatsui@gcc.gnu.org> | 2023-12-16 08:59:40 -0800 |
| commit | 61d6dee992fdfa350a0c6d2a8151ec6e2844c419 (patch) | |
| tree | 6d9367feb90a3ed5a40d3b25924dc8540a9a2519 | |
| parent | 4b111013654e745e8d73bd9614a15efbfd19ae8c (diff) | |
| download | gcc-61d6dee992fdfa350a0c6d2a8151ec6e2844c419.zip gcc-61d6dee992fdfa350a0c6d2a8151ec6e2844c419.tar.gz gcc-61d6dee992fdfa350a0c6d2a8151ec6e2844c419.tar.bz2 | |
libstdc++: Optimize std::remove_pointer compilation performance
This patch optimizes the compilation performance of std::remove_pointer
by dispatching to the new remove_pointer built-in trait.
libstdc++-v3/ChangeLog:
* include/std/type_traits (remove_pointer): Use __remove_pointer
built-in trait.
Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org>
Reviewed-by: Jonathan Wakely <jwakely@redhat.com>
| -rw-r--r-- | libstdc++-v3/include/std/type_traits | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 2979d79..f00c07f 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -2089,6 +2089,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION // Pointer modifications. + /// remove_pointer +#if _GLIBCXX_USE_BUILTIN_TRAIT(__remove_pointer) + template<typename _Tp> + struct remove_pointer + { using type = __remove_pointer(_Tp); }; +#else template<typename _Tp, typename> struct __remove_pointer_helper { using type = _Tp; }; @@ -2097,11 +2103,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION struct __remove_pointer_helper<_Tp, _Up*> { using type = _Up; }; - /// remove_pointer template<typename _Tp> struct remove_pointer : public __remove_pointer_helper<_Tp, __remove_cv_t<_Tp>> { }; +#endif template<typename _Tp, typename = void> struct __add_pointer_helper |