Remove reference_static_offsets used for iterating through class static fields.
Since static fields are contiguous in class object and there is no need to
traverse super classes, it's not meaningful to use reference_static_offsets.
Also especially with embedded vtable/imt, static field offset can't be encoded
with an unsigned integer anyway.
A corresponding change is made to Class.java to remove the member field.
Bug: 16236588
Change-Id: I1fde3cd9efce884945876f0658c63d992164fd94
diff --git a/runtime/mirror/object-inl.h b/runtime/mirror/object-inl.h
index 8c1dc7d..166ea9c 100644
--- a/runtime/mirror/object-inl.h
+++ b/runtime/mirror/object-inl.h
@@ -888,9 +888,9 @@
template<bool kVisitClass, bool kIsStatic, typename Visitor>
inline void Object::VisitFieldsReferences(uint32_t ref_offsets, const Visitor& visitor) {
- if (LIKELY(ref_offsets != CLASS_WALK_SUPER)) {
+ if (!kIsStatic && LIKELY(ref_offsets != CLASS_WALK_SUPER)) {
if (!kVisitClass) {
- // Mask out the class from the reference offsets.
+ // Mask out the class from the reference offsets.
ref_offsets ^= kWordHighBitMask;
}
DCHECK_EQ(ClassOffset().Uint32Value(), 0U);
@@ -902,7 +902,7 @@
ref_offsets &= ~(CLASS_HIGH_BIT >> right_shift);
}
} else {
- // There is no reference offset bitmap. In the non-static case, walk up the class
+ // There is no reference offset bitmap. In the non-static case, walk up the class
// inheritance hierarchy and find reference offsets the hard way. In the static case, just
// consider this class.
for (mirror::Class* klass = kIsStatic ? AsClass() : GetClass(); klass != nullptr;
@@ -930,8 +930,7 @@
template<bool kVisitClass, typename Visitor>
inline void Object::VisitStaticFieldsReferences(mirror::Class* klass, const Visitor& visitor) {
DCHECK(!klass->IsTemp());
- klass->VisitFieldsReferences<kVisitClass, true>(
- klass->GetReferenceStaticOffsets<kVerifyNone>(), visitor);
+ klass->VisitFieldsReferences<kVisitClass, true>(0, visitor);
}
template <const bool kVisitClass, VerifyObjectFlags kVerifyFlags, typename Visitor,