pp.c:pp_pow() -- quit when you're done

From: "Craig A. Berry" <craigberry@mac.com>
Message-Id: <a05111b15b93181a27d6d@[172.16.52.1]>

p4raw-id: //depot/perl@17255

1 files changed, 2 insertions, 0 deletions

diff --git a/pp.c b/pp.c
index ae29d7930d..7fa9c06933 100644
--- a/pp.c
+++ b/pp.c
@@ -956,6 +956,8 @@ PP(pp_pow)
                             result *= base;
                             /* Only bother to clear the bit if it is set.  */
                             power &= ~bit;
+                           /* Avoid squaring base again if we're done. */
+                           if (power == 0) break;
                         }
                     }
                     SP--;