fix comment
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2157 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/memcheck/mc_translate.c b/memcheck/mc_translate.c
index 249076c..58bc4a8 100644
--- a/memcheck/mc_translate.c
+++ b/memcheck/mc_translate.c
@@ -1491,7 +1491,7 @@
case Tag_ImproveAND1_TQ:
sz = 1; goto do_ImproveAND;
do_ImproveAND:
- /* Implements Q = T OR Q. So if Q is entirely defined,
+ /* Implements Q = T AND Q. So if Q is entirely defined,
ie all 0s, we get MOV T, Q. */
if (def[u->val2] <= 4) {
sk_assert(def[u->val2] == sz);