Rename A64 port to ARM64 port

src/arm64/instructions-arm64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
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 // modification, are permitted provided that the following conditions are
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 #include "v8.h"
 
-#if V8_TARGET_ARCH_A64
+#if V8_TARGET_ARCH_ARM64
 
-#define A64_DEFINE_FP_STATICS
+#define ARM64_DEFINE_FP_STATICS
 
-#include "a64/instructions-a64.h"
-#include "a64/assembler-a64-inl.h"
+#include "arm64/instructions-arm64.h"
+#include "arm64/assembler-arm64-inl.h"
 
 namespace v8 {
 namespace internal {
 
 
 bool Instruction::IsLoad() const {
   if (Mask(LoadStoreAnyFMask) != LoadStoreAnyFixed) {
     return false;
   }
 
@@ skipping 253 matching lines @@
   ptrdiff_t offset = DistanceTo(source) >> kLiteralEntrySizeLog2;
   Instr imm = Assembler::ImmLLiteral(offset);
   Instr mask = ImmLLiteral_mask;
 
   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-a64-inl.h to work around this.
+// 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());
   // 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-a64-inl.h to work around this.
+// instructions-arm64-inl.h to work around this.
 uint64_t InstructionSequence::InlineData() const {
   ASSERT(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_A64
+#endif  // V8_TARGET_ARCH_ARM64