Enable load / store multiple pass for Thumb2. It's not using ldrd / strd yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78104 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMTargetMachine.cpp b/lib/Target/ARM/ARMTargetMachine.cpp
index 918ca78..a6e987b 100644
--- a/lib/Target/ARM/ARMTargetMachine.cpp
+++ b/lib/Target/ARM/ARMTargetMachine.cpp
@@ -101,8 +101,9 @@
 
 bool ARMBaseTargetMachine::addPreEmitPass(PassManagerBase &PM,
                                           CodeGenOpt::Level OptLevel) {
-  // FIXME: temporarily disabling load / store optimization pass for Thumb mode.
-  if (OptLevel != CodeGenOpt::None && !DisableLdStOpti && !Subtarget.isThumb())
+  // FIXME: temporarily disabling load / store optimization pass for Thumb1 mode.
+  if (OptLevel != CodeGenOpt::None && !DisableLdStOpti &&
+      !Subtarget.isThumb1Only())
     PM.add(createARMLoadStoreOptimizationPass());
 
   if (OptLevel != CodeGenOpt::None &&