diff --git a/test/CodeGen/X86/vaargs.ll b/test/CodeGen/X86/vaargs.ll
index fa31ec3b417..ddeb7a336d4 100644
--- a/test/CodeGen/X86/vaargs.ll
+++ b/test/CodeGen/X86/vaargs.ll
@@ -1,4 +1,4 @@
-; RUN: llc %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=NO-FLAGS
+; RUN: llc -mcpu=corei7-avx %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=NO-FLAGS
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
 target triple = "x86_64-apple-macosx10.9.0"