[builtins] Migrate DatePrototype_GetField to TurboFan builtin.

src/builtins/arm64/builtins-arm64.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.
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/arm64/frames-arm64.h"
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
@@ skipping 1819 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 -------------
-  //  -- x0      : number of arguments
-  //  -- x1      : function
-  //  -- cp      : context
-  //  -- lr      : return address
-  //  -- jssp[0] : receiver
-  // -----------------------------------
-  ASM_LOCATION("Builtins::Generate_DatePrototype_GetField");
-
-  // 1. Pop receiver into x0 and check that it's actually a JSDate object.
-  Label receiver_not_date;
-  {
-    __ Pop(x0);
-    __ JumpIfSmi(x0, &receiver_not_date);
-    __ JumpIfNotObjectType(x0, x2, x3, JS_DATE_TYPE, &receiver_not_date);
-  }
-
-  // 2. Load the specified date field, falling back to the runtime as necessary.
-  if (field_index == JSDate::kDateValue) {
-    __ Ldr(x0, FieldMemOperand(x0, JSDate::kValueOffset));
-  } else {
-    if (field_index < JSDate::kFirstUncachedField) {
-      Label stamp_mismatch;
-      __ Mov(x1, ExternalReference::date_cache_stamp(masm->isolate()));
-      __ Ldr(x1, MemOperand(x1));
-      __ Ldr(x2, FieldMemOperand(x0, JSDate::kCacheStampOffset));
-      __ Cmp(x1, x2);
-      __ B(ne, &stamp_mismatch);
-      __ Ldr(x0, FieldMemOperand(
-                     x0, JSDate::kValueOffset + field_index * kPointerSize));
-      __ Ret();
-      __ Bind(&stamp_mismatch);
-    }
-    FrameScope scope(masm, StackFrame::INTERNAL);
-    __ Mov(x1, 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(x0);
-    __ Mov(x0, Smi::FromInt(0));
-    __ EnterBuiltinFrame(cp, x1, x0);
-    __ 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 -------------
   //  -- x0       : argc
   //  -- jssp[0]  : argArray (if argc == 2)
   //  -- jssp[8]  : thisArg  (if argc >= 1)
   //  -- jssp[16] : receiver
   // -----------------------------------
   ASM_LOCATION("Builtins::Generate_FunctionPrototypeApply");
 
   Register argc = x0;
@@ skipping 1150 matching lines @@
     __ Unreachable();
   }
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM