AMDGPU/SI: Enable load-store-opt by default.

Summary: Enable load-store-opt by default, and update LIT tests.

Reviewers: arsenm

Differential Revision: http://reviews.llvm.org/D20694

llvm-svn: 270894
diff --git a/llvm/test/CodeGen/AMDGPU/missing-store.ll b/llvm/test/CodeGen/AMDGPU/missing-store.ll
index d608fd1..3d6d7fa 100644
--- a/llvm/test/CodeGen/AMDGPU/missing-store.ll
+++ b/llvm/test/CodeGen/AMDGPU/missing-store.ll
@@ -7,8 +7,8 @@
 
 ; FUNC-LABEL: {{^}}missing_store_reduced:
 ; SI: ds_read_b64
-; SI: buffer_store_dword
-; SI: v_readfirstlane_b32 s[[PTR_LO:[0-9]+]], v{{[0-9]+}}
+; SI-DAG: buffer_store_dword
+; SI-DAG: v_readfirstlane_b32 s[[PTR_LO:[0-9]+]], v{{[0-9]+}}
 ; SI: v_readfirstlane_b32 s[[PTR_HI:[0-9]+]], v{{[0-9]+}}
 ; SI: s_load_dword
 ; SI: s_nop 2