Revert of [builtins] Refactor the remaining Date builtins.

src/crankshaft/arm64/lithium-codegen-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.
 
 #include "src/crankshaft/arm64/lithium-codegen-arm64.h"
 
 #include "src/arm64/frames-arm64.h"
 #include "src/base/bits.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
@@ skipping 2498 matching lines @@
 
 void LCodeGen::DoLazyBailout(LLazyBailout* instr) {
   last_lazy_deopt_pc_ = masm()->pc_offset();
   DCHECK(instr->HasEnvironment());
   LEnvironment* env = instr->environment();
   RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt);
   safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index());
 }
 
 
+void LCodeGen::DoDateField(LDateField* instr) {
+  Register object = ToRegister(instr->date());
+  Register result = ToRegister(instr->result());
+  Register temp1 = x10;
+  Register temp2 = x11;
+  Smi* index = instr->index();
+
+  DCHECK(object.is(result) && object.Is(x0));
+  DCHECK(instr->IsMarkedAsCall());
+
+  if (index->value() == 0) {
+    __ Ldr(result, FieldMemOperand(object, JSDate::kValueOffset));
+  } else {
+    Label runtime, done;
+    if (index->value() < JSDate::kFirstUncachedField) {
+      ExternalReference stamp = ExternalReference::date_cache_stamp(isolate());
+      __ Mov(temp1, Operand(stamp));
+      __ Ldr(temp1, MemOperand(temp1));
+      __ Ldr(temp2, FieldMemOperand(object, JSDate::kCacheStampOffset));
+      __ Cmp(temp1, temp2);
+      __ B(ne, &runtime);
+      __ Ldr(result, FieldMemOperand(object, JSDate::kValueOffset +
+                                             kPointerSize * index->value()));
+      __ B(&done);
+    }
+
+    __ Bind(&runtime);
+    __ Mov(x1, Operand(index));
+    __ CallCFunction(ExternalReference::get_date_field_function(isolate()), 2);
+    __ Bind(&done);
+  }
+}
+
+
 void LCodeGen::DoDeoptimize(LDeoptimize* instr) {
   Deoptimizer::BailoutType type = instr->hydrogen()->type();
   // TODO(danno): Stubs expect all deopts to be lazy for historical reasons (the
   // needed return address), even though the implementation of LAZY and EAGER is
   // now identical. When LAZY is eventually completely folded into EAGER, remove
   // the special case below.
   if (info()->IsStub() && (type == Deoptimizer::EAGER)) {
     type = Deoptimizer::LAZY;
   }
 
@@ skipping 3250 matching lines @@
   Handle<ScopeInfo> scope_info = instr->scope_info();
   __ Push(scope_info);
   __ Push(ToRegister(instr->function()));
   CallRuntime(Runtime::kPushBlockContext, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 }  // namespace internal
 }  // namespace v8