rename MachineInstr::setInstrDescriptor -> setDesc


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45871 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
index 347ed8b..6c99c3a 100644
--- a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
+++ b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
@@ -741,7 +741,7 @@
     if (PrevMI->getOpcode() == ARM::LDM) {
       MachineOperand &MO = PrevMI->getOperand(PrevMI->getNumOperands()-1);
       if (MO.getReg() == ARM::LR) {
-        PrevMI->setInstrDescriptor(TII->get(ARM::LDM_RET));
+        PrevMI->setDesc(TII->get(ARM::LDM_RET));
         MO.setReg(ARM::PC);
         MBB.erase(MBBI);
         return true;