diff --git a/test/CodeGen/X86/prefetch.ll b/test/CodeGen/X86/prefetch.ll
index efb51913c5c..08a913638b6 100644
--- a/test/CodeGen/X86/prefetch.ll
+++ b/test/CodeGen/X86/prefetch.ll
@@ -1,6 +1,7 @@
 ; RUN: llc < %s -march=x86 -mattr=+sse | FileCheck %s
 ; RUN: llc < %s -march=x86 -mattr=+avx | FileCheck %s
 ; RUN: llc < %s -march=x86 -mattr=+sse -mattr=+prfchw | FileCheck %s -check-prefix=PRFCHW
+; RUN: llc < %s -mcpu=slm | FileCheck %s -check-prefix=SLM
 
 ; rdar://10538297
 
@@ -11,6 +12,7 @@ entry:
 ; CHECK: prefetcht0
 ; CHECK: prefetchnta
 ; PRFCHW: prefetchw
+; SLM: prefetchw
 	tail call void @llvm.prefetch( i8* %ptr, i32 0, i32 1, i32 1 )
 	tail call void @llvm.prefetch( i8* %ptr, i32 0, i32 2, i32 1 )
 	tail call void @llvm.prefetch( i8* %ptr, i32 0, i32 3, i32 1 )