[builtins] Migrate DatePrototype_GetField to TurboFan builtin.

src/builtins/arm/builtins-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/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 1849 matching lines @@
 
 void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) {
   Generate_OnStackReplacementHelper(masm, false);
 }
 
 void Builtins::Generate_InterpreterOnStackReplacement(MacroAssembler* masm) {
   Generate_OnStackReplacementHelper(masm, true);
 }
 
 // static
-void Builtins::Generate_DatePrototype_GetField(MacroAssembler* masm,
-                                               int field_index) {
-  // ----------- S t a t e -------------
-  //  -- r0    : number of arguments
-  //  -- r1    : function
-  //  -- cp    : context
-  //  -- lr    : return address
-  //  -- sp[0] : receiver
-  // -----------------------------------
-
-  // 1. Pop receiver into r0 and check that it's actually a JSDate object.
-  Label receiver_not_date;
-  {
-    __ Pop(r0);
-    __ JumpIfSmi(r0, &receiver_not_date);
-    __ CompareObjectType(r0, r2, r3, JS_DATE_TYPE);
-    __ b(ne, &receiver_not_date);
-  }
-
-  // 2. Load the specified date field, falling back to the runtime as necessary.
-  if (field_index == JSDate::kDateValue) {
-    __ ldr(r0, FieldMemOperand(r0, JSDate::kValueOffset));
-  } else {
-    if (field_index < JSDate::kFirstUncachedField) {
-      Label stamp_mismatch;
-      __ mov(r1, Operand(ExternalReference::date_cache_stamp(masm->isolate())));
-      __ ldr(r1, MemOperand(r1));
-      __ ldr(ip, FieldMemOperand(r0, JSDate::kCacheStampOffset));
-      __ cmp(r1, ip);
-      __ b(ne, &stamp_mismatch);
-      __ ldr(r0, FieldMemOperand(
-                     r0, JSDate::kValueOffset + field_index * kPointerSize));
-      __ Ret();
-      __ bind(&stamp_mismatch);
-    }
-    FrameScope scope(masm, StackFrame::INTERNAL);
-    __ PrepareCallCFunction(2, r1);
-    __ mov(r1, Operand(Smi::FromInt(field_index)));
-    __ CallCFunction(
-        ExternalReference::get_date_field_function(masm->isolate()), 2);
-  }
-  __ Ret();
-
-  // 3. Raise a TypeError if the receiver is not a date.
-  __ bind(&receiver_not_date);
-  {
-    FrameScope scope(masm, StackFrame::MANUAL);
-    __ Push(r0);
-    __ Move(r0, Smi::FromInt(0));
-    __ EnterBuiltinFrame(cp, r1, r0);
-    __ CallRuntime(Runtime::kThrowNotDateError);
-
-    // It's far from obvious, but this final trailing instruction after the call
-    // is required for StackFrame::LookupCode to work correctly. To illustrate
-    // why: if call were the final instruction in the code object, then the pc
-    // (== return address) would point beyond the code object when the stack is
-    // traversed. When we then try to look up the code object through
-    // StackFrame::LookupCode, we actually return the next code object that
-    // happens to be on the same page in memory.
-    // TODO(jgruber): A proper fix for this would be nice.
-    __ nop();
-  }
-}
-
-// static
 void Builtins::Generate_FunctionPrototypeApply(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r0    : argc
   //  -- sp[0] : argArray
   //  -- sp[4] : thisArg
   //  -- sp[8] : receiver
   // -----------------------------------
 
   // 1. Load receiver into r1, argArray into r0 (if present), remove all
   // arguments from the stack (including the receiver), and push thisArg (if
@@ skipping 1024 matching lines @@
     __ bkpt(0);
   }
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM