LivePhysReg: Use reference instead of pointer in init(); NFC

llvm-svn: 289002
diff --git a/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp b/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
index f638b94..48ab491 100644
--- a/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
+++ b/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
@@ -560,7 +560,7 @@
     MachineBasicBlock::const_iterator Before) {
   // Initialize if we never queried in this block.
   if (!LiveRegsValid) {
-    LiveRegs.init(TRI);
+    LiveRegs.init(*TRI);
     LiveRegs.addLiveOuts(MBB);
     LiveRegPos = MBB.end();
     LiveRegsValid = true;