Add support for intrinsic optimizations.
Change-Id: Ib5a4224022f9360e60c09a19ac8642270a7f3b64
diff --git a/test/536-checker-intrinsic-optimization/src/Main.java b/test/536-checker-intrinsic-optimization/src/Main.java
new file mode 100644
index 0000000..1b784ae
--- /dev/null
+++ b/test/536-checker-intrinsic-optimization/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) {
+ stringEqualsSame();
+ stringArgumentNotNull("Foo");
+ }
+
+ /// CHECK-START: boolean Main.stringEqualsSame() instruction_simplifier (before)
+ /// CHECK: InvokeStaticOrDirect
+
+ /// CHECK-START: boolean Main.stringEqualsSame() register (before)
+ /// CHECK: <<Const1:i\d+>> IntConstant 1
+ /// CHECK: Return [<<Const1>>]
+
+ /// CHECK-START: boolean Main.stringEqualsSame() register (before)
+ /// CHECK-NOT: InvokeStaticOrDirect
+ public static boolean stringEqualsSame() {
+ return $inline$callStringEquals("obj", "obj");
+ }
+
+ /// CHECK-START: boolean Main.stringEqualsNull() register (after)
+ /// CHECK: <<Invoke:z\d+>> InvokeStaticOrDirect
+ /// CHECK: Return [<<Invoke>>]
+ public static boolean stringEqualsNull() {
+ String o = (String)myObject;
+ return $inline$callStringEquals(o, o);
+ }
+
+ public static boolean $inline$callStringEquals(String a, String b) {
+ return a.equals(b);
+ }
+
+ /// CHECK-START-X86: boolean Main.stringArgumentNotNull(java.lang.Object) disassembly (after)
+ /// CHECK: InvokeStaticOrDirect
+ /// CHECK-NOT: test
+ public static boolean stringArgumentNotNull(Object obj) {
+ obj.getClass();
+ return "foo".equals(obj);
+ }
+
+ // Test is very brittle as it depends on the order we emit instructions.
+ /// CHECK-START-X86: boolean Main.stringArgumentIsString() disassembly (after)
+ /// CHECK: InvokeStaticOrDirect
+ /// CHECK: test
+ /// CHECK: jz/eq
+ // Check that we don't try to compare the classes.
+ /// CHECK-NOT: mov
+ /// CHECK: cmp
+ public static boolean stringArgumentIsString() {
+ return "foo".equals(myString);
+ }
+
+ static String myString;
+ static Object myObject;
+}