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-rw-r--r--math/w_exp2l.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/math/w_exp2l.c b/math/w_exp2l.c
index 7f06805a0d..33861d584a 100644
--- a/math/w_exp2l.c
+++ b/math/w_exp2l.c
@@ -9,7 +9,7 @@ long double
__exp2l (long double x)
{
long double z = __ieee754_exp2l (x);
- if (__builtin_expect (!__finitel (z), 0)
+ if (__builtin_expect (!__finitel (z) || z == 0, 0)
&& __finitel (x) && _LIB_VERSION != _IEEE_)
/* exp2 overflow: 244, exp2 underflow: 245 */
return __kernel_standard_l (x, x, 244 + !!__signbitl (x));