[builtins] Refactor the remaining Date builtins.

src/crankshaft/x64/lithium-codegen-x64.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_X64
 
 #include "src/crankshaft/x64/lithium-codegen-x64.h"
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
@@ skipping 1649 matching lines @@
 }
 
 
 void LCodeGen::DoMapEnumLength(LMapEnumLength* instr) {
   Register result = ToRegister(instr->result());
   Register map = ToRegister(instr->value());
   __ EnumLength(result, map);
 }
 
 
-void LCodeGen::DoDateField(LDateField* instr) {
-  Register object = ToRegister(instr->date());
-  Register result = ToRegister(instr->result());
-  Smi* index = instr->index();
-  DCHECK(object.is(result));
-  DCHECK(object.is(rax));
-
-  if (FLAG_debug_code) {
-    __ AssertNotSmi(object);
-    __ CmpObjectType(object, JS_DATE_TYPE, kScratchRegister);
-    __ Check(equal, kOperandIsNotADate);
-  }
-
-  if (index->value() == 0) {
-    __ movp(result, FieldOperand(object, JSDate::kValueOffset));
-  } else {
-    Label runtime, done;
-    if (index->value() < JSDate::kFirstUncachedField) {
-      ExternalReference stamp = ExternalReference::date_cache_stamp(isolate());
-      Operand stamp_operand = __ ExternalOperand(stamp);
-      __ movp(kScratchRegister, stamp_operand);
-      __ cmpp(kScratchRegister, FieldOperand(object,
-                                             JSDate::kCacheStampOffset));
-      __ j(not_equal, &runtime, Label::kNear);
-      __ movp(result, FieldOperand(object, JSDate::kValueOffset +
-                                           kPointerSize * index->value()));
-      __ jmp(&done, Label::kNear);
-    }
-    __ bind(&runtime);
-    __ PrepareCallCFunction(2);
-    __ movp(arg_reg_1, object);
-    __ Move(arg_reg_2, index, Assembler::RelocInfoNone());
-    __ CallCFunction(ExternalReference::get_date_field_function(isolate()), 2);
-    __ bind(&done);
-  }
-}
-
-
 Operand LCodeGen::BuildSeqStringOperand(Register string,
                                         LOperand* index,
                                         String::Encoding encoding) {
   if (index->IsConstantOperand()) {
     int offset = ToInteger32(LConstantOperand::cast(index));
     if (encoding == String::TWO_BYTE_ENCODING) {
       offset *= kUC16Size;
     }
     STATIC_ASSERT(kCharSize == 1);
     return FieldOperand(string, SeqString::kHeaderSize + offset);
@@ skipping 3981 matching lines @@
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64