Refactor allocation entrypoints.

Adds support for switching entrypoints during runtime. Enables
addition of new allocators with out requiring significant copy
paste. Slight speedup on ritzperf probably due to more inlining.

TODO: Ensuring that the entire allocation path is inlined so
that the switch statement in the allocation code is optimized
out.

Rosalloc measurements:
4583
4453
4439
4434
4751

After change:
4184
4287
4131
4335
4097

Change-Id: I1352a3cbcdf6dae93921582726324d91312df5c9

1 files changed, 23 insertions, 22 deletions

diff --git a/runtime/mirror/array-inl.h b/runtime/mirror/array-inl.h
index ef73e4df47..2955faa3c8 100644
--- a/runtime/mirror/array-inl.h
+++ b/runtime/mirror/array-inl.h
@@ -59,43 +59,44 @@ static inline size_t ComputeArraySize(Thread* self, Class* array_class, int32_t
 }
 
 static inline Array* SetArrayLength(Array* array, size_t length) {
-  if (LIKELY(array != NULL)) {
+  if (LIKELY(array != nullptr)) {
     DCHECK(array->IsArrayInstance());
     array->SetLength(length);
   }
   return array;
 }
 
-template <bool kIsMovable, bool kIsInstrumented>
+template <bool kIsInstrumented>
 inline Array* Array::Alloc(Thread* self, Class* array_class, int32_t component_count,
-                           size_t component_size) {
+                           size_t component_size, gc::AllocatorType allocator_type) {
   size_t size = ComputeArraySize(self, array_class, component_count, component_size);
   if (UNLIKELY(size == 0)) {
-    return NULL;
+    return nullptr;
   }
   gc::Heap* heap = Runtime::Current()->GetHeap();
-  Array* array = nullptr;
-  if (kIsMovable) {
-    if (kIsInstrumented) {
-      array = down_cast<Array*>(heap->AllocMovableObjectInstrumented(self, array_class, size));
-    } else {
-      array = down_cast<Array*>(heap->AllocMovableObjectUninstrumented(self, array_class, size));
-    }
-  } else {
-    if (kIsInstrumented) {
-      array = down_cast<Array*>(heap->AllocNonMovableObjectInstrumented(self, array_class, size));
-    } else {
-      array = down_cast<Array*>(heap->AllocNonMovableObjectUninstrumented(self, array_class, size));
-    }
-  }
+  Array* array = down_cast<Array*>(
+      heap->AllocObjectWithAllocator<kIsInstrumented>(self, array_class, size, allocator_type));
   return SetArrayLength(array, component_count);
 }
 
-template <bool kIsMovable, bool kIsInstrumented>
-inline Array* Array::Alloc(Thread* self, Class* array_class, int32_t component_count) {
+template <bool kIsInstrumented>
+inline Array* Array::Alloc(Thread* self, Class* array_class, int32_t component_count,
+                           gc::AllocatorType allocator_type) {
   DCHECK(array_class->IsArrayClass());
-  return Alloc<kIsMovable, kIsInstrumented>(self, array_class, component_count,
-                                            array_class->GetComponentSize());
+  return Alloc<kIsInstrumented>(self, array_class, component_count, array_class->GetComponentSize(),
+                                allocator_type);
+}
+template <bool kIsInstrumented>
+inline Array* Array::Alloc(Thread* self, Class* array_class, int32_t component_count) {
+  return Alloc<kIsInstrumented>(self, array_class, component_count,
+               Runtime::Current()->GetHeap()->GetCurrentAllocator());
+}
+
+template <bool kIsInstrumented>
+inline Array* Array::Alloc(Thread* self, Class* array_class, int32_t component_count,
+                           size_t component_size) {
+  return Alloc<kIsInstrumented>(self, array_class, component_count, component_size,
+               Runtime::Current()->GetHeap()->GetCurrentAllocator());
 }
 
 }  // namespace mirror