Verify that llvm can generate the prefetchw instruction when the CPU is

Atom Silvermont.

Patch by Sriram Murali.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190957 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/prefetch.ll b/test/CodeGen/X86/prefetch.ll
index efb51913c5c1f419a8a099fe598d2d81c6e49b34..08a913638b6417a8d3d6897228d4c8ff0d921d6a 100644 (file)
--- 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 )