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

src/IceAssembler.cpp

 //===- subzero/src/IceAssembler.cpp - Assembler base class ----------------===//
 // Copyright (c) 2012, 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.
 //
 // This is forked from Dart revision 39313.
 // Please update the revision if we merge back changes from Dart.
 // https://code.google.com/p/dart/wiki/GettingTheSource
@@ skipping 115 matching lines @@
   // Verify internal state.
   assert(capacity() == new_capacity);
   assert(size() == old_size);
 }
 
 llvm::StringRef Assembler::getBufferView() const {
   return llvm::StringRef(reinterpret_cast<const char *>(Buffer.contents()),
                          Buffer.size());
 }
 
-void Assembler::emitIASBytes() const {
+void Assembler::emitIASBytes(GlobalContext *Ctx) const {
   Ostream &Str = Ctx->getStrEmit();
   intptr_t EndPosition = Buffer.size();
   intptr_t CurPosition = 0;
   for (const AssemblerFixup *NextFixup : fixups()) {
     intptr_t NextFixupLoc = NextFixup->position();
     for (intptr_t i = CurPosition; i < NextFixupLoc; ++i) {
       Str << "\t.byte 0x";
       Str.write_hex(Buffer.load<uint8_t>(i));
       Str << "\n";
     }
     // For PCRel fixups, we write the pc-offset from a symbol into the Buffer
     // (e.g., -4), but we don't represent that in the fixup's offset. Otherwise
     // the fixup holds the true offset, and so does the Buffer. Just load the
     // offset from the buffer.
     CurPosition = NextFixupLoc +
                   NextFixup->emit(Ctx, Buffer.load<RelocOffsetT>(NextFixupLoc),
                                   fixupIsPCRel(NextFixup->kind()));
     assert(CurPosition <= EndPosition);
   }
   // Handle any bytes that are not prefixed by a fixup.
   for (intptr_t i = CurPosition; i < EndPosition; ++i) {
     Str << "\t.byte 0x";
     Str.write_hex(Buffer.load<uint8_t>(i));
     Str << "\n";
   }
 }
 
 } // end of namespace Ice