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riscv-gcc-1
Commit 4e4120a2 by Jonathan Wakely Committed by Jonathan Wakely
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Fix std::__rotl and std::__rotr 

2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
	    Jakub Jelinek  <jakub@redhat.com>

	* include/std/bit (__rotl, __rotr): Fix for non-power of two sizes.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r262414
parent 04f8c98c
Showing with 7 additions and 2 deletions
libstdc++-v3/ChangeLog
2018-07-04 Jonathan Wakely <jwakely@redhat.com>
Jakub Jelinek <jakub@redhat.com>
* include/std/bit (__rotl, __rotr): Fix for non-power of two sizes.
2018-07-04 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/86398
* include/std/type_traits (is_trivially_constructible): Check
......
libstdc++-v3/include/std/bit
......@@ -46,7 +46,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{
constexpr auto _Nd = numeric_limits<_Tp>::digits;
const unsigned __sN = __s % _Nd;
return (__x << __sN) | (__x >> ((-__sN) % _Nd));
return (__x << __sN) | (__x >> ((_Nd - __sN) % _Nd));
}
template<typename _Tp>
......@@ -55,7 +55,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{
constexpr auto _Nd = numeric_limits<_Tp>::digits;
const unsigned __sN = __s % _Nd;
return (__x >> __sN) | (__x << ((-__sN) % _Nd));
return (__x >> __sN) | (__x << ((_Nd - __sN) % _Nd));
}
template<typename _Tp>
......
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