Use IC register definitions in platform files.

src/x64/stub-cache-x64.cc

 // Copyright 2012 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_X64
 
 #include "src/arguments.h"
 #include "src/codegen.h"
@@ skipping 1380 matching lines @@
 #define __ ACCESS_MASM(masm)
 
 
 void KeyedLoadStubCompiler::GenerateLoadDictionaryElement(
     MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- rax    : key
   //  -- rdx    : receiver
   //  -- rsp[0] : return address
   // -----------------------------------
+  ASSERT(rdx.is(KeyedLoadIC::ReceiverRegister()));
+  ASSERT(rax.is(KeyedLoadIC::NameRegister()));
   Label slow, miss;
 
   // This stub is meant to be tail-jumped to, the receiver must already
   // have been verified by the caller to not be a smi.
 
   __ JumpIfNotSmi(rax, &miss);
   __ SmiToInteger32(rbx, rax);
   __ movp(rcx, FieldOperand(rdx, JSObject::kElementsOffset));
 
   // Check whether the elements is a number dictionary.
@@ skipping 20 matching lines @@
   // -----------------------------------
   TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64