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-rw-r--r--math/powf.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/math/powf.c b/math/powf.c
index 385719b..1149842 100644
--- a/math/powf.c
+++ b/math/powf.c
@@ -204,8 +204,11 @@ powf (float x, float y)
if (WANT_ROUNDING && WANT_ERRNO
&& ylogx > 0x1.fffffffa3aae2p+6 * POWF_SCALE)
/* |x^y| > 0x1.fffffep127, check if we round away from 0. */
- if ((!sign_bias && opt_barrier_float (-ylogx) != -128 * POWF_SCALE)
- || (sign_bias && -opt_barrier_float (ylogx) != -128 * POWF_SCALE))
+ if ((!sign_bias
+ && eval_as_float (1.0f + opt_barrier_float (0x1p-25f)) != 1.0f)
+ || (sign_bias
+ && eval_as_float (-1.0f - opt_barrier_float (0x1p-25f))
+ != -1.0f))
return __math_oflowf (sign_bias);
if (ylogx <= -150.0 * POWF_SCALE)
return __math_uflowf (sign_bias);