Move mirror::ArtMethod to native
Optimizing + quick tests are passing, devices boot.
TODO: Test and fix bugs in mips64.
Saves 16 bytes per most ArtMethod, 7.5MB reduction in system PSS.
Some of the savings are from removal of virtual methods and direct
methods object arrays.
Bug: 19264997
Change-Id: I622469a0cfa0e7082a2119f3d6a9491eb61e3f3d
diff --git a/runtime/stride_iterator.h b/runtime/stride_iterator.h
new file mode 100644
index 0000000..5971524
--- /dev/null
+++ b/runtime/stride_iterator.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ART_RUNTIME_STRIDE_ITERATOR_H_
+#define ART_RUNTIME_STRIDE_ITERATOR_H_
+
+#include <iterator>
+
+namespace art {
+
+template<typename T>
+class StrideIterator : public std::iterator<std::random_access_iterator_tag, T> {
+ public:
+ StrideIterator(const StrideIterator&) = default;
+ StrideIterator(StrideIterator&&) = default;
+ StrideIterator& operator=(const StrideIterator&) = default;
+ StrideIterator& operator=(StrideIterator&&) = default;
+
+ StrideIterator(uintptr_t ptr, size_t stride)
+ : ptr_(ptr), stride_(stride) {
+ }
+
+ bool operator==(const StrideIterator& other) const {
+ return ptr_ == other.ptr_;
+ }
+
+ bool operator!=(const StrideIterator& other) const {
+ return !(*this == other);
+ }
+
+ StrideIterator operator++() { // Value after modification.
+ ptr_ += stride_;
+ return *this;
+ }
+
+ StrideIterator operator++(int) {
+ auto temp = *this;
+ ptr_ += stride_;
+ return temp;
+ }
+
+ T& operator*() const {
+ return *reinterpret_cast<T*>(ptr_);
+ }
+
+ T* operator->() const {
+ return &**this;
+ }
+
+ private:
+ uintptr_t ptr_;
+ const size_t stride_;
+};
+
+} // namespace art
+
+#endif // ART_RUNTIME_STRIDE_ITERATOR_H_