===================================================================
@@ -547,18 +547,17 @@
isfinite(_Tp __x)
{ return true; }
- // Workaround the isinf issue discussed in PR 49813.
constexpr bool
isinf(float __x)
- { return fpclassify(__x) == FP_INFINITE; }
+ { return __builtin_isinf(__x); }
constexpr bool
isinf(double __x)
- { return fpclassify(__x) == FP_INFINITE; }
+ { return __builtin_isinf(__x); }
constexpr bool
isinf(long double __x)
- { return fpclassify(__x) == FP_INFINITE; }
+ { return __builtin_isinf(__x); }
template<typename _Tp>
constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,