Invoke typed arraycopy for primitive arrays.
Apps will always call the Object version of arraycopy. When
we can infer the types of the passed arrays, replace the method
being called to be the typed System.arraycopy one.
10% improvement on ExoPlayerBench.
Test: 641-checker-arraycopy
bug: 7103825
Change-Id: I872d7a6e163a4614510ef04ae582eb90ec48b5fa
diff --git a/test/641-checker-arraycopy/build b/test/641-checker-arraycopy/build
new file mode 100644
index 0000000..9abc618
--- /dev/null
+++ b/test/641-checker-arraycopy/build
@@ -0,0 +1,24 @@
+#!/bin/bash
+#
+# Copyright 2017 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.
+
+# make us exit on a failure
+set -e
+
+# Don't use jack for this test, to ensure we don't use
+# the typed System.arraycopy versions directly.
+export USE_JACK=false
+
+./default-build