Cleanup of contexts in the full code generator.

src/x64/macro-assembler-x64.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1777 matching lines @@
   andl(scratch2, Immediate(kFlatAsciiStringMask));
   // Interleave the bits to check both scratch1 and scratch2 in one test.
   ASSERT_EQ(0, kFlatAsciiStringMask & (kFlatAsciiStringMask << 3));
   lea(scratch1, Operand(scratch1, scratch2, times_8, 0));
   cmpl(scratch1,
        Immediate(kFlatAsciiStringTag + (kFlatAsciiStringTag << 3)));
   j(not_equal, on_fail);
 }
 
 
+void MacroAssembler::Move(Register dst, Register src) {
+  if (!dst.is(src)) {
+    movq(dst, src);
+  }
+}
+
+
+
+
 void MacroAssembler::Move(Register dst, Handle<Object> source) {
   ASSERT(!source->IsFailure());
   if (source->IsSmi()) {
     Move(dst, Smi::cast(*source));
   } else {
     movq(dst, source, RelocInfo::EMBEDDED_OBJECT);
   }
 }
 
 
@@ skipping 1060 matching lines @@
   CPU::FlushICache(address_, size_);
 
   // Check that the code was patched as expected.
   ASSERT(masm_.pc_ == address_ + size_);
   ASSERT(masm_.reloc_info_writer.pos() == address_ + size_ + Assembler::kGap);
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64