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;
diff --git a/llvm/lib/Target/SystemZ/SystemZShortenInst.cpp b/llvm/lib/Target/SystemZ/SystemZShortenInst.cpp
index 43f01b0..83882fc 100644
--- a/llvm/lib/Target/SystemZ/SystemZShortenInst.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZShortenInst.cpp
@@ -275,7 +275,7 @@
   const SystemZSubtarget &ST = F.getSubtarget<SystemZSubtarget>();
   TII = ST.getInstrInfo();
   TRI = ST.getRegisterInfo();
-  LiveRegs.init(TRI);
+  LiveRegs.init(*TRI);
 
   bool Changed = false;
   for (auto &MBB : F)
diff --git a/llvm/lib/Target/X86/X86FixupBWInsts.cpp b/llvm/lib/Target/X86/X86FixupBWInsts.cpp
index 345181c..8bde4bf 100644
--- a/llvm/lib/Target/X86/X86FixupBWInsts.cpp
+++ b/llvm/lib/Target/X86/X86FixupBWInsts.cpp
@@ -154,7 +154,7 @@
   TII = MF.getSubtarget<X86Subtarget>().getInstrInfo();
   OptForSize = MF.getFunction()->optForSize();
   MLI = &getAnalysis<MachineLoopInfo>();
-  LiveRegs.init(&TII->getRegisterInfo());
+  LiveRegs.init(TII->getRegisterInfo());
 
   DEBUG(dbgs() << "Start X86FixupBWInsts\n";);