[AMDGPU] Disable SReg Global LD/ST, perf regression

Differential Revision: https://reviews.llvm.org/D55093

llvm-svn: 348014
diff --git a/llvm/test/CodeGen/AMDGPU/global-saddr.ll b/llvm/test/CodeGen/AMDGPU/global-saddr.ll
index fff10fa..b21fd98 100644
--- a/llvm/test/CodeGen/AMDGPU/global-saddr.ll
+++ b/llvm/test/CodeGen/AMDGPU/global-saddr.ll
@@ -1,4 +1,4 @@
-; RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -check-prefix=GFX9 %s
+; RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs -amdgpu-enable-global-sgpr-addr < %s | FileCheck -check-prefix=GFX9 %s
 
 ; Test for a conv2d like sequence of loads.