Revert of [builtins] Refactor the remaining Date builtins.

src/full-codegen/arm/full-codegen-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/ast/scopes.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 3412 matching lines @@
 
   __ JumpIfSmi(r0, if_false);
   __ CompareObjectType(r0, r1, r1, JS_DATE_TYPE);
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
   Split(eq, if_true, if_false, fall_through);
 
   context()->Plug(if_true, if_false);
 }
 
 
+void FullCodeGenerator::EmitDateField(CallRuntime* expr) {
+  ZoneList<Expression*>* args = expr->arguments();
+  DCHECK(args->length() == 2);
+  DCHECK_NOT_NULL(args->at(1)->AsLiteral());
+  Smi* index = Smi::cast(*(args->at(1)->AsLiteral()->value()));
+
+  VisitForAccumulatorValue(args->at(0));  // Load the object.
+
+  Register object = r0;
+  Register result = r0;
+  Register scratch0 = r9;
+  Register scratch1 = r1;
+
+  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(scratch1, Operand(stamp));
+      __ ldr(scratch1, MemOperand(scratch1));
+      __ ldr(scratch0, FieldMemOperand(object, JSDate::kCacheStampOffset));
+      __ cmp(scratch1, scratch0);
+      __ b(ne, &runtime);
+      __ ldr(result, FieldMemOperand(object, JSDate::kValueOffset +
+                                             kPointerSize * index->value()));
+      __ jmp(&done);
+    }
+    __ bind(&runtime);
+    __ PrepareCallCFunction(2, scratch1);
+    __ mov(r1, Operand(index));
+    __ CallCFunction(ExternalReference::get_date_field_function(isolate()), 2);
+    __ bind(&done);
+  }
+
+  context()->Plug(result);
+}
+
+
 void FullCodeGenerator::EmitOneByteSeqStringSetChar(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK_EQ(3, args->length());
 
   Register string = r0;
   Register index = r1;
   Register value = r2;
 
   VisitForStackValue(args->at(0));        // index
   VisitForStackValue(args->at(1));        // value
@@ skipping 1440 matching lines @@
   DCHECK(interrupt_address ==
          isolate->builtins()->OsrAfterStackCheck()->entry());
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM