* numeric.c (int_pow): make sure to assign the result of x * z.

  If xz is optimized out, the value won't overflow.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31805 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/numeric.c b/numeric.c
index 09860dc6f2..1b80a2b6e0 100644
--- a/numeric.c
+++ b/numeric.c
@@ -2637,7 +2637,7 @@ int_pow(long x, unsigned long y)
 	    y >>= 1;
 	}
 	{
-	    long xz = x * z;
+	    volatile long xz = x * z;
 	    if (!POSFIXABLE(xz) || xz / x != z) {
 		goto bignum;
 	    }