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-rw-r--r--sysdeps/ieee754/ldbl-128/e_powl.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/sysdeps/ieee754/ldbl-128/e_powl.c b/sysdeps/ieee754/ldbl-128/e_powl.c
index f531385232..7f3037fb51 100644
--- a/sysdeps/ieee754/ldbl-128/e_powl.c
+++ b/sysdeps/ieee754/ldbl-128/e_powl.c
@@ -435,7 +435,11 @@ __ieee754_powl (long double x, long double y)
   j = o.parts32.w0;
   j += (n << 16);
   if ((j >> 16) <= 0)
-    z = __scalbnl (z, n);	/* subnormal output */
+    {
+      z = __scalbnl (z, n);	/* subnormal output */
+      long double force_underflow = z * z;
+      math_force_eval (force_underflow);
+    }
   else
     {
       o.parts32.w0 = j;