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

src/IceFixups.cpp

 //===- subzero/src/IceFixups.cpp - Implementation of Assembler Fixups -----===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
 /// This file implements the AssemblerFixup class, a very basic
 /// target-independent representation of a fixup or relocation.
 ///
 //===----------------------------------------------------------------------===//
 
 #include "IceFixups.h"
 
 #include "IceOperand.h"
 
 namespace Ice {
 
 const Constant *AssemblerFixup::NullSymbol = nullptr;
 
 RelocOffsetT AssemblerFixup::offset() const {
   if (isNullSymbol())
     return 0;
-  if (const auto CR = llvm::dyn_cast<ConstantRelocatable>(value_))
+  if (const auto *CR = llvm::dyn_cast<ConstantRelocatable>(value_))
     return CR->getOffset();
   return 0;
 }
 
 IceString AssemblerFixup::symbol(const GlobalContext *Ctx) const {
   std::string Buffer;
   llvm::raw_string_ostream Str(Buffer);
   const Constant *C = value_;
   assert(!isNullSymbol());
-  if (const auto CR = llvm::dyn_cast<ConstantRelocatable>(C)) {
+  if (const auto *CR = llvm::dyn_cast<ConstantRelocatable>(C)) {
     if (CR->getSuppressMangling())
       Str << CR->getName();
     else
       Str << Ctx->mangleName(CR->getName());
   } else {
     // NOTE: currently only float/doubles are put into constant pools. In the
     // future we may put integers as well.
     assert(llvm::isa<ConstantFloat>(C) || llvm::isa<ConstantDouble>(C));
     C->emitPoolLabel(Str, Ctx);
   }
@@ skipping 22 matching lines @@
   Str << "\n";
   return FixupSize;
 }
 
 size_t AssemblerTextFixup::emit(GlobalContext *Ctx, const Assembler &) const {
   Ctx->getStrEmit() << Message << "\n";
   return NumBytes;
 }
 
 } // end of namespace Ice