diff --git a/test/CodeGen/X86/vec_cast.ll b/test/CodeGen/X86/vec_cast.ll
index 95289c9685a..90d39d0b46a 100644
--- a/test/CodeGen/X86/vec_cast.ll
+++ b/test/CodeGen/X86/vec_cast.ll
@@ -1,5 +1,5 @@
-; RUN: llc < %s -march=x86-64 -mcpu=core2
-
+; RUN: llc < %s -mtriple=x86_64-linux -mcpu=core2
+; RUN: llc < %s -mtriple=x86_64-win32 -mcpu=core2
 
 define <8 x i32> @a(<8 x i16> %a) nounwind {
   %c = sext <8 x i16> %a to <8 x i32>