[stubs] StringToNumberStub --> StringToNumber builtin.

src/arm/code-stubs-arm.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.
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/code-stubs.h"
 #include "src/api-arguments.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 2505 matching lines @@
   __ TailCallStub(&stub);
 }
 
 void NonNumberToNumberStub::Generate(MacroAssembler* masm) {
   // The NonNumberToNumber stub takes one argument in r0.
   __ AssertNotNumber(r0);
 
   __ CompareObjectType(r0, r1, r1, FIRST_NONSTRING_TYPE);
   // r0: receiver
   // r1: receiver instance type
-  StringToNumberStub stub(masm->isolate());
-  __ TailCallStub(&stub, lo);
+  __ Jump(isolate()->builtins()->StringToNumber(), RelocInfo::CODE_TARGET, lo);
 
   Label not_oddball;
   __ cmp(r1, Operand(ODDBALL_TYPE));
   __ b(ne, &not_oddball);
   __ ldr(r0, FieldMemOperand(r0, Oddball::kToNumberOffset));
   __ Ret();
   __ bind(&not_oddball);
 
   __ Push(r0);  // Push argument.
   __ TailCallRuntime(Runtime::kToNumber);
 }
 
-void StringToNumberStub::Generate(MacroAssembler* masm) {
-  // The StringToNumber stub takes one argument in r0.
-  __ AssertString(r0);
-
-  // Check if string has a cached array index.
-  Label runtime;
-  __ ldr(r2, FieldMemOperand(r0, String::kHashFieldOffset));
-  __ tst(r2, Operand(String::kContainsCachedArrayIndexMask));
-  __ b(ne, &runtime);
-  __ IndexFromHash(r2, r0);
-  __ Ret();
-
-  __ bind(&runtime);
-  __ Push(r0);  // Push argument.
-  __ TailCallRuntime(Runtime::kStringToNumber);
-}
-
 void ToStringStub::Generate(MacroAssembler* masm) {
   // The ToString stub takes one argument in r0.
   Label is_number;
   __ JumpIfSmi(r0, &is_number);
 
   __ CompareObjectType(r0, r1, r1, FIRST_NONSTRING_TYPE);
   // r0: receiver
   // r1: receiver instance type
   __ Ret(lo);
 
@@ skipping 2877 matching lines @@
   CallApiFunctionAndReturn(masm, api_function_address, thunk_ref,
                            kStackUnwindSpace, NULL, return_value_operand, NULL);
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM