diff --git a/test/Transforms/InstCombine/xor-demorgans.ll b/test/Transforms/InstCombine/xor-demorgans.ll
index 763794befcb..c8de6dbdf21 100644
--- a/test/Transforms/InstCombine/xor-demorgans.ll
+++ b/test/Transforms/InstCombine/xor-demorgans.ll
@@ -1,5 +1,6 @@
 ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep {= or}
 ; PR3266
+; XFAIL: *
 
 define i1 @foo(i32 %x, i32 %y) nounwind {
 .summary: