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libstdc++: Remove workaround in __gnu_cxx::char_traits::move [PR89074] 

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.
This commit is contained in:
Jonathan Wakely 2022-07-07 13:40:20 +01:00
parent 9de8fbe150
commit ad6135e261
1 changed files with 0 additions and 9 deletions
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9
libstdc++-v3/include/bits/char_traits.h
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@ -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