diff --git a/test/CodeGen/X86/vec_zero_cse.ll b/test/CodeGen/X86/vec_zero_cse.ll
index b882bad1aff..0ccf745e524 100644
--- a/test/CodeGen/X86/vec_zero_cse.ll
+++ b/test/CodeGen/X86/vec_zero_cse.ll
@@ -1,6 +1,6 @@
-; RUN: llvm-as < %s | llc -relocation-model=static -mcpu=yonah | grep pxor | count 1
-; RUN: llvm-as < %s | llc -relocation-model=static -mcpu=yonah | grep xorps | count 1
-; RUN: llvm-as < %s | llc -relocation-model=static -mcpu=yonah | grep pcmpeqd | count 2
+; RUN: llvm-as < %s | llc -relocation-model=static -march=x86 -mcpu=yonah | grep pxor | count 1
+; RUN: llvm-as < %s | llc -relocation-model=static -march=x86 -mcpu=yonah | grep xorps | count 1
+; RUN: llvm-as < %s | llc -relocation-model=static -march=x86 -mcpu=yonah | grep pcmpeqd | count 2
 
 @M1 = external global <1 x i64>
 @M2 = external global <2 x i32>