Move ArtField to native

Add linear alloc. Moved ArtField to be native object. Changed image
writer to put ArtFields after the mirror section.

Savings:
2MB on low ram devices
4MB on normal devices

Total PSS measurements before (normal N5, 95s after shell start):
Image size: 7729152 bytes
23112 kB: .NonMoving
23212 kB: .NonMoving
22868 kB: .NonMoving
23072 kB: .NonMoving
22836 kB: .NonMoving
19618 kB: .Zygote
19850 kB: .Zygote
19623 kB: .Zygote
19924 kB: .Zygote
19612 kB: .Zygote
Avg: 42745.4 kB

After:
Image size: 7462912 bytes
17440 kB: .NonMoving
16776 kB: .NonMoving
16804 kB: .NonMoving
17812 kB: .NonMoving
16820 kB: .NonMoving
18788 kB: .Zygote
18856 kB: .Zygote
19064 kB: .Zygote
18841 kB: .Zygote
18629 kB: .Zygote
3499 kB: .LinearAlloc
3408 kB: .LinearAlloc
3424 kB: .LinearAlloc
3600 kB: .LinearAlloc
3436 kB: .LinearAlloc
Avg: 39439.4 kB

No reflection performance changes.

Bug: 19264997
Bug: 17643507

Change-Id: I10c73a37913332080aeb978c7c94713bdfe4fe1c

1 files changed, 4 insertions, 17 deletions

diff --git a/runtime/mirror/object-inl.h b/runtime/mirror/object-inl.h
index d6901634b7..af0e85603b 100644
--- a/runtime/mirror/object-inl.h
+++ b/runtime/mirror/object-inl.h
@@ -225,18 +225,6 @@ inline bool Object::IsArrayInstance() {
 }
 
 template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption>
-inline bool Object::IsArtField() {
-  return GetClass<kVerifyFlags, kReadBarrierOption>()->
-      template IsArtFieldClass<kReadBarrierOption>();
-}
-
-template<VerifyObjectFlags kVerifyFlags>
-inline ArtField* Object::AsArtField() {
-  DCHECK(IsArtField<kVerifyFlags>());
-  return down_cast<ArtField*>(this);
-}
-
-template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption>
 inline bool Object::IsArtMethod() {
   return GetClass<kVerifyFlags, kReadBarrierOption>()->
       template IsArtMethodClass<kReadBarrierOption>();
@@ -318,8 +306,8 @@ inline ShortArray* Object::AsShortSizedArray() {
 template<VerifyObjectFlags kVerifyFlags>
 inline IntArray* Object::AsIntArray() {
   constexpr auto kNewFlags = static_cast<VerifyObjectFlags>(kVerifyFlags & ~kVerifyThis);
-  DCHECK(GetClass<kVerifyFlags>()->IsArrayClass());
-  DCHECK(GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveInt() ||
+  CHECK(GetClass<kVerifyFlags>()->IsArrayClass());
+  CHECK(GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveInt() ||
          GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveFloat());
   return down_cast<IntArray*>(this);
 }
@@ -327,8 +315,8 @@ inline IntArray* Object::AsIntArray() {
 template<VerifyObjectFlags kVerifyFlags>
 inline LongArray* Object::AsLongArray() {
   constexpr auto kNewFlags = static_cast<VerifyObjectFlags>(kVerifyFlags & ~kVerifyThis);
-  DCHECK(GetClass<kVerifyFlags>()->IsArrayClass());
-  DCHECK(GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveLong() ||
+  CHECK(GetClass<kVerifyFlags>()->IsArrayClass());
+  CHECK(GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveLong() ||
          GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveDouble());
   return down_cast<LongArray*>(this);
 }
@@ -403,7 +391,6 @@ inline size_t Object::SizeOf() {
   }
   DCHECK_GE(result, sizeof(Object))
       << " class=" << PrettyTypeOf(GetClass<kNewFlags, kReadBarrierOption>());
-  DCHECK(!(IsArtField<kNewFlags, kReadBarrierOption>()) || result == sizeof(ArtField));
   return result;
 }