Opt Compiler: ARM64: Add support for rem-float, rem-double and volatile.

Add support for rem-float, rem-double and volatile memory accesses
using acquire-release and memory barriers.

Change-Id: I96a24dff66002c3b772c3d8e6ed792e3cb59048a
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>

3 files changed, 54 insertions, 0 deletions

diff --git a/test/438-volatile/expected.txt b/test/438-volatile/expected.txt
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/test/438-volatile/expected.txt
diff --git a/test/438-volatile/info.txt b/test/438-volatile/info.txt
new file mode 100644
index 0000000000..7a4c81aa75
--- /dev/null
+++ b/test/438-volatile/info.txt
@@ -0,0 +1 @@
+Tests basic operations (set/get) on volatiles.
diff --git a/test/438-volatile/src/Main.java b/test/438-volatile/src/Main.java
new file mode 100644
index 0000000000..a870e4cc38
--- /dev/null
+++ b/test/438-volatile/src/Main.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2014 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 {
+  static volatile long long_volatile;
+  static volatile double double_volatile;
+
+  public static void main(String[] args) {
+    checkVolatileUpdate(0L);
+    checkVolatileUpdate(Long.MAX_VALUE);
+    checkVolatileUpdate(Long.MIN_VALUE);
+
+    checkVolatileUpdate(0.0);
+    checkVolatileUpdate(Double.MAX_VALUE);
+    checkVolatileUpdate(-Double.MAX_VALUE);
+  }
+
+  public static long $opt$update(long a) {
+     long_volatile = a;
+     return long_volatile;
+  }
+
+  public static double $opt$update(double a) {
+     double_volatile = a;
+     return double_volatile;
+  }
+
+  public static void checkVolatileUpdate(long value) {
+    if (value != $opt$update(value)) {
+      throw new RuntimeException("Volatile update failed for long:" + value);
+    }
+  }
+
+  public static void checkVolatileUpdate(double value) {
+    if (value != $opt$update(value)) {
+      throw new RuntimeException("Volatile update failed for double:" + value);
+    }
+  }
+
+}