Reduce size of monomorphic checked entry.

runtime/vm/stub_code_x64.cc

 // 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.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/assembler.h"
 #include "vm/compiler.h"
 #include "vm/dart_entry.h"
@@ skipping 2241 matching lines @@
 
   __ movq(CODE_REG, Address(THR, Thread::ic_lookup_through_code_stub_offset()));
   __ movq(RCX, FieldAddress(CODE_REG, Code::checked_entry_point_offset()));
   __ jmp(RCX);
 }
 
 
 // Called from the monomorphic checked entry.
 //  RDI: receiver
 void StubCode::GenerateMonomorphicMissStub(Assembler* assembler) {
+  __ movq(CODE_REG, Address(THR, Thread::monomorphic_miss_stub_offset()));
   __ EnterStubFrame();
   __ pushq(RDI);  // Preserve receiver.
 
   __ pushq(Immediate(0));  // Result slot.
   __ pushq(RDI);           // Arg0: Receiver
   __ CallRuntime(kMonomorphicMissRuntimeEntry, 1);
   __ popq(RBX);
   __ popq(RBX);  // result = IC
 
   __ popq(RDI);  // Restore receiver.
   __ LeaveStubFrame();
 
   __ movq(CODE_REG, Address(THR, Thread::ic_lookup_through_code_stub_offset()));
   __ movq(RCX, FieldAddress(CODE_REG, Code::checked_entry_point_offset()));
   __ jmp(RCX);
 }
 
 
 void StubCode::GenerateFrameAwaitingMaterializationStub(Assembler* assembler) {
   __ int3();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64