diff --git a/test/CodeGen/ext-vector.c b/test/CodeGen/ext-vector.c
index e3b6211..4739a66 100644
--- a/test/CodeGen/ext-vector.c
+++ b/test/CodeGen/ext-vector.c
@@ -115,9 +115,7 @@
   a /= c;
   a %= c;
 
-  // Vector comparisons can sometimes crash the x86 backend: rdar://6326239,
-  // reject them until the implementation is stable.
-#if 0
+  // Vector comparisons.
   int4 cmp;
   cmp = a < b;
   cmp = a <= b;
@@ -125,5 +123,4 @@
   cmp = a >= b;
   cmp = a == b;
   cmp = a != b;
-#endif
 }