ARM64: Fix some signed-unsigned comparisons from cdc43bc (r28412).

src/arm64/instructions-arm64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_ARM64
 
 #define ARM64_DEFINE_FP_STATICS
 
@@ skipping 301 matching lines @@
   SetInstructionBits(Mask(~mask) | imm);
 }
 
 
 // TODO(jbramley): We can't put this inline in the class because things like
 // xzr and Register are not defined in that header. Consider adding
 // instructions-arm64-inl.h to work around this.
 bool InstructionSequence::IsInlineData() const {
   // Inline data is encoded as a single movz instruction which writes to xzr
   // (x31).
-  return IsMovz() && SixtyFourBits() && (Rd() == xzr.code());
+  return IsMovz() && SixtyFourBits() && (Rd() == kZeroRegCode);
   // TODO(all): If we extend ::InlineData() to support bigger data, we need
   // to update this method too.
 }
 
 
 // TODO(jbramley): We can't put this inline in the class because things like
 // xzr and Register are not defined in that header. Consider adding
 // instructions-arm64-inl.h to work around this.
 uint64_t InstructionSequence::InlineData() const {
   DCHECK(IsInlineData());
   uint64_t payload = ImmMoveWide();
   // TODO(all): If we extend ::InlineData() to support bigger data, we need
   // to update this method too.
   return payload;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM64