| Message ID | 20240511090130.248174-7-kmatsui@gcc.gnu.org |
|---|---|
| State | New |
| Headers | show |
| Series | [v26,01/13] libstdc++: Optimize std::is_const compilation performance | expand |
On 11/05/24 02:01 -0700, Ken Matsui wrote: >This patch optimizes the compilation performance of >std::remove_all_extents by dispatching to the new >__remove_all_extents built-in trait. OK, thanks. >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 58281c2e38c..5b74e44d0a6 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 >-- >2.44.0 >
diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 58281c2e38c..5b74e44d0a6 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
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(+)