Subzero: Refactor x86 register definitions to use the alias mechanism.

src/IceInstARM32.cpp

Index: src/IceInstARM32.cpp
diff --git a/src/IceInstARM32.cpp b/src/IceInstARM32.cpp
index d2cd6efbc4464922b84384e59acc82274ba63336..a3c7c1d5f0f36080583b08a77de46cbb11aae07d 100644
--- a/src/IceInstARM32.cpp
+++ b/src/IceInstARM32.cpp
@@ -890,7 +890,7 @@ template <> void InstARM32Movw::emit(const Cfg *Func) const {
   getDest()->emit(Func);
   Str << ", ";
   Constant *Src0 = llvm::cast<Constant>(getSrc(0));
-  if (auto CR = llvm::dyn_cast<ConstantRelocatable>(Src0)) {
+  if (auto *CR = llvm::dyn_cast<ConstantRelocatable>(Src0)) {
     Str << "#:lower16:";
     CR->emitWithoutPrefix(Func->getTarget());
   } else {
@@ -908,7 +908,7 @@ template <> void InstARM32Movt::emit(const Cfg *Func) const {
   Str << "\t" << Opcode << getPredicate() << "\t";
   Dest->emit(Func);
   Str << ", ";
-  if (auto CR = llvm::dyn_cast<ConstantRelocatable>(Src1)) {
+  if (auto *CR = llvm::dyn_cast<ConstantRelocatable>(Src1)) {
     Str << "#:upper16:";
     CR->emitWithoutPrefix(Func->getTarget());
   } else {