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

src/IceAssemblerMIPS32.h

 //===- subzero/src/IceAssemblerMIPS32.h - Assembler for MIPS ----*- C++ -*-===//
 //
 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 //
 // Modified by the Subzero authors.
 //
 //===----------------------------------------------------------------------===//
 //
@@ skipping 17 matching lines @@
 #include "IceFixups.h"
 
 namespace Ice {
 namespace MIPS32 {
 
 class AssemblerMIPS32 : public Assembler {
   AssemblerMIPS32(const AssemblerMIPS32 &) = delete;
   AssemblerMIPS32 &operator=(const AssemblerMIPS32 &) = delete;
 
 public:
-  explicit AssemblerMIPS32(GlobalContext *Ctx, bool use_far_branches = false)
-      : Assembler(Asm_MIPS32, Ctx) {
+  explicit AssemblerMIPS32(bool use_far_branches = false)
+      : Assembler(Asm_MIPS32) {
     // This mode is only needed and implemented for MIPS32 and ARM.
     assert(!use_far_branches);
     (void)use_far_branches;
   }
   ~AssemblerMIPS32() override = default;
 
   void alignFunction() override {
     llvm::report_fatal_error("Not yet implemented.");
   }
 
@@ skipping 28 matching lines @@
 
   static bool classof(const Assembler *Asm) {
     return Asm->getKind() == Asm_MIPS32;
   }
 };
 
 } // end of namespace MIPS32
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEASSEMBLERMIPS32_H