Revert r307026, "[AMDGPU] Switch scalarize global loads ON by default"

It broke a testcase.

  Failing Tests (1):
      LLVM :: CodeGen/AMDGPU/alignbit-pat.ll

llvm-svn: 307054
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.sqrt.f16.ll b/llvm/test/CodeGen/AMDGPU/llvm.sqrt.f16.ll
index f7da626..46ee6526 100644
--- a/llvm/test/CodeGen/AMDGPU/llvm.sqrt.f16.ll
+++ b/llvm/test/CodeGen/AMDGPU/llvm.sqrt.f16.ll
@@ -1,5 +1,5 @@
-; RUN:  llc -amdgpu-scalarize-global-loads=false  -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=SI %s
-; RUN:  llc -amdgpu-scalarize-global-loads=false  -march=amdgcn -mcpu=fiji -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=VI %s
+; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=SI %s
+; RUN: llc -march=amdgcn -mcpu=fiji -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=VI %s
 
 declare half @llvm.sqrt.f16(half %a)
 declare <2 x half> @llvm.sqrt.v2f16(<2 x half> %a)