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libstdc++: Remove redundant branches in countl_one and countr_one [PR 98226]

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There's no need to explicitly check for the maximum value, because the
function we call handles it correctly anyway.

libstdc++-v3/ChangeLog:

	PR libstdc++/98226
	* include/std/bit (__countl_one, __countr_one): Remove redundant
	branches.
This commit is contained in:
Jonathan Wakely 2020-12-10 21:57:42 +00:00
parent 7f359556a7
commit 2ea62857a3
1 changed files with 0 additions and 4 deletions
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libstdc++-v3/include/std/bit
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@ -141,8 +141,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
constexpr int constexpr int
__countl_one(_Tp __x) noexcept __countl_one(_Tp __x) noexcept
{ {
if (__x == __gnu_cxx::__int_traits<_Tp>::__max)
return __gnu_cxx::__int_traits<_Tp>::__digits;
return std::__countl_zero<_Tp>((_Tp)~__x); return std::__countl_zero<_Tp>((_Tp)~__x);
} }
@ -184,8 +182,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
constexpr int constexpr int
__countr_one(_Tp __x) noexcept __countr_one(_Tp __x) noexcept
{ {
if (__x == __gnu_cxx::__int_traits<_Tp>::__max)
return __gnu_cxx::__int_traits<_Tp>::__digits;
return std::__countr_zero((_Tp)~__x); return std::__countr_zero((_Tp)~__x);
} }