Revert of [builtins] Refactor the remaining Date builtins.

src/crankshaft/arm/lithium-codegen-arm.cc

Index: src/crankshaft/arm/lithium-codegen-arm.cc
diff --git a/src/crankshaft/arm/lithium-codegen-arm.cc b/src/crankshaft/arm/lithium-codegen-arm.cc
index 577b7c8839d4ebb520ccde1af64e09581e59dd0f..44b6444d3d9ced5dab654c02cd7109f5495b02a3 100644
--- a/src/crankshaft/arm/lithium-codegen-arm.cc
+++ b/src/crankshaft/arm/lithium-codegen-arm.cc
@@ -1810,6 +1810,40 @@
 }
 
 
+void LCodeGen::DoDateField(LDateField* instr) {
+  Register object = ToRegister(instr->date());
+  Register result = ToRegister(instr->result());
+  Register scratch = ToRegister(instr->temp());
+  Smi* index = instr->index();
+  DCHECK(object.is(result));
+  DCHECK(object.is(r0));
+  DCHECK(!scratch.is(scratch0()));
+  DCHECK(!scratch.is(object));
+
+  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(scratch, Operand(stamp));
+      __ ldr(scratch, MemOperand(scratch));
+      __ ldr(scratch0(), FieldMemOperand(object, JSDate::kCacheStampOffset));
+      __ cmp(scratch, scratch0());
+      __ b(ne, &runtime);
+      __ ldr(result, FieldMemOperand(object, JSDate::kValueOffset +
+                                             kPointerSize * index->value()));
+      __ jmp(&done);
+    }
+    __ bind(&runtime);
+    __ PrepareCallCFunction(2, scratch);
+    __ mov(r1, Operand(index));
+    __ CallCFunction(ExternalReference::get_date_field_function(isolate()), 2);
+    __ bind(&done);
+  }
+}
+
+
 MemOperand LCodeGen::BuildSeqStringOperand(Register string,
                                            LOperand* index,
                                            String::Encoding encoding) {