Use IC register definitions in platform files.

src/x64/code-stubs-x64.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_X64
 
 #include "src/bootstrapper.h"
 #include "src/code-stubs.h"
@@ skipping 71 matching lines @@
 
 void RegExpConstructResultStub::InitializeInterfaceDescriptor(
     CodeStubInterfaceDescriptor* descriptor) {
   Register registers[] = { rcx, rbx, rax };
   descriptor->Initialize(
       ARRAY_SIZE(registers), registers,
       Runtime::FunctionForId(Runtime::kHiddenRegExpConstructResult)->entry);
 }
 
 
-void LoadFieldStub::InitializeInterfaceDescriptor(
-    CodeStubInterfaceDescriptor* descriptor) {
-  Register registers[] = { rax };
-  descriptor->Initialize(ARRAY_SIZE(registers), registers);
-}
-
-
-void KeyedLoadFieldStub::InitializeInterfaceDescriptor(
-    CodeStubInterfaceDescriptor* descriptor) {
-  Register registers[] = { rdx };
-  descriptor->Initialize(ARRAY_SIZE(registers), registers);
-}
-
-
-void StringLengthStub::InitializeInterfaceDescriptor(
-    CodeStubInterfaceDescriptor* descriptor) {
-  Register registers[] = { rax, rcx };
-  descriptor->Initialize(ARRAY_SIZE(registers), registers);
-}
-
-
-void KeyedStringLengthStub::InitializeInterfaceDescriptor(
-    CodeStubInterfaceDescriptor* descriptor) {
-  Register registers[] = { rdx, rax };
-  descriptor->Initialize(ARRAY_SIZE(registers), registers);
-}
-
-
 void KeyedStoreFastElementStub::InitializeInterfaceDescriptor(
     CodeStubInterfaceDescriptor* descriptor) {
   Register registers[] = { rdx, rcx, rax };
   descriptor->Initialize(
       ARRAY_SIZE(registers), registers,
       FUNCTION_ADDR(KeyedStoreIC_MissFromStubFailure));
 }
 
 
 void TransitionElementsKindStub::InitializeInterfaceDescriptor(
@@ skipping 4848 matching lines @@
                               return_value_operand,
                               NULL);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64