add case Iop_V128to32 to memcheck



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@4626 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/memcheck/mc_translate.c b/memcheck/mc_translate.c
index ee8bcc0..38ca17d 100644
--- a/memcheck/mc_translate.c
+++ b/memcheck/mc_translate.c
@@ -1909,6 +1909,7 @@
       case Iop_16Uto32:
       case Iop_16Sto32:
       case Iop_8Sto32:
+      case Iop_V128to32:
          return assignNew(mce, Ity_I32, unop(op, vatom));
 
       case Iop_8Sto16: