ART: ARM64: Fix saved fpu stack offsets for SIMD.
Fix the bug when a wrong stack offset was recorded for a FP
saved in a SlowPathCode: this happened when graph had SIMD
loops and some regular FP registers live across a slow path.
Test: test-art-target, test-art-host.
Change-Id: I08b32c9877fcd468dafa6027c156e544d730f1f7
diff --git a/test/597-deopt-busy-loop/src/SimpleLoop.java b/test/597-deopt-busy-loop/src/SimpleLoop.java
new file mode 100644
index 0000000..12298a9
--- /dev/null
+++ b/test/597-deopt-busy-loop/src/SimpleLoop.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 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.
+ */
+
+public class SimpleLoop implements Runnable {
+ static final int numberOfThreads = 2;
+ volatile static boolean sExitFlag = false;
+ volatile static boolean sEntered = false;
+ int threadIndex;
+
+ SimpleLoop(int index) {
+ threadIndex = index;
+ }
+
+ public static void main() throws Exception {
+ final Thread[] threads = new Thread[numberOfThreads];
+ for (int t = 0; t < threads.length; t++) {
+ threads[t] = new Thread(new SimpleLoop(t));
+ threads[t].start();
+ }
+ for (Thread t : threads) {
+ t.join();
+ }
+
+ System.out.println("Simple loop finishing");
+ }
+
+ public void $noinline$busyLoop() {
+ Main.assertIsManaged();
+ sEntered = true;
+ for (;;) {
+ if (sExitFlag) {
+ break;
+ }
+ }
+ Main.assertIsInterpreted();
+ }
+
+ public void run() {
+ if (threadIndex == 0) {
+ while (!sEntered) {
+ Thread.yield();
+ }
+ Main.deoptimizeAll();
+ sExitFlag = true;
+ } else {
+ $noinline$busyLoop();
+ }
+ }
+}