* [committed] libstdc++: Remove workaround in __gnu_cxx::char_traits::move [PR89074]
@ 2022-07-07 16:52 Jonathan Wakely
0 siblings, 0 replies; only message in thread
From: Jonathan Wakely @ 2022-07-07 16:52 UTC (permalink / raw)
To: libstdc++, gcc-patches
Tested aarch64-linux, pushed to trunk.
-- >8 --
The front-end bug that prevented this constexpr loop from working has
been fixed since GCC 12.1 so we can remove the workaround.
libstdc++-v3/ChangeLog:
PR c++/89074
* include/bits/char_traits.h (__gnu_cxx::char_traits::move):
Remove workaround for front-end bug.
---
libstdc++-v3/include/bits/char_traits.h | 9 ---------
1 file changed, 9 deletions(-)
diff --git a/libstdc++-v3/include/bits/char_traits.h b/libstdc++-v3/include/bits/char_traits.h
index b856b1da320..965ff29b75c 100644
--- a/libstdc++-v3/include/bits/char_traits.h
+++ b/libstdc++-v3/include/bits/char_traits.h
@@ -215,14 +215,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{
if (__s1 == __s2) // unlikely, but saves a lot of work
return __s1;
-#if __cpp_constexpr_dynamic_alloc
- // The overlap detection below fails due to PR c++/89074,
- // so use a temporary buffer instead.
- char_type* __tmp = new char_type[__n];
- copy(__tmp, __s2, __n);
- copy(__s1, __tmp, __n);
- delete[] __tmp;
-#else
const auto __end = __s2 + __n - 1;
bool __overlap = false;
for (std::size_t __i = 0; __i < __n - 1; ++__i)
@@ -244,7 +236,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
}
else
copy(__s1, __s2, __n);
-#endif
return __s1;
}
#endif
--
2.36.1
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2022-07-07 16:52 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-07-07 16:52 [committed] libstdc++: Remove workaround in __gnu_cxx::char_traits::move [PR89074] Jonathan Wakely
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).