Intrinsify System.arraycopy.
Currently on x64, will do the other architectures in
different changes.
Change-Id: I15fbbadb450dd21787809759a8b14b21b1e42624
diff --git a/test/537-checker-arraycopy/src/Main.java b/test/537-checker-arraycopy/src/Main.java
new file mode 100644
index 0000000..30ccc56
--- /dev/null
+++ b/test/537-checker-arraycopy/src/Main.java
@@ -0,0 +1,71 @@
+/*
+ * 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.
+ */
+
+
+public class Main {
+ public static void main(String[] args) {
+ arraycopy();
+ try {
+ arraycopy(new Object());
+ throw new Error("Should not be here");
+ } catch (ArrayStoreException ase) {
+ // Ignore.
+ }
+ try {
+ arraycopy(null);
+ throw new Error("Should not be here");
+ } catch (NullPointerException npe) {
+ // Ignore.
+ }
+
+ try {
+ arraycopy(new Object[1]);
+ throw new Error("Should not be here");
+ } catch (ArrayIndexOutOfBoundsException aiooe) {
+ // Ignore.
+ }
+
+ arraycopy(new Object[2]);
+ arraycopy(new Object[2], 0);
+
+ try {
+ arraycopy(new Object[1], 1);
+ throw new Error("Should not be here");
+ } catch (ArrayIndexOutOfBoundsException aiooe) {
+ // Ignore.
+ }
+ }
+
+ /// CHECK-START-X86_64: void Main.arraycopy() disassembly (after)
+ /// CHECK: InvokeStaticOrDirect
+ /// CHECK-NOT: test
+ /// CHECK-NOT: call
+ /// CHECK: ReturnVoid
+ // Checks that the call is intrinsified and that there is no test instruction
+ // when we know the source and destination are not null.
+ public static void arraycopy() {
+ Object[] obj = new Object[4];
+ System.arraycopy(obj, 1, obj, 0, 1);
+ }
+
+ public static void arraycopy(Object obj) {
+ System.arraycopy(obj, 1, obj, 0, 1);
+ }
+
+ public static void arraycopy(Object[] obj, int pos) {
+ System.arraycopy(obj, pos, obj, 0, obj.length);
+ }
+}