Implement polymorphic inlining.
For example, before:
HInvokeVirtual
After:
If (receiver == Foo) {
// inlined code.
} else if (receiver == Bar) {
// inlined code
} else {
// HInvokeVirtual or HDeoptimize(receiver != Baz)
}
Change-Id: I5ce305aef8f39f8294bf2b2bcfe60e0dddcfdbec
diff --git a/test/576-polymorphic-inlining/src/Main.java b/test/576-polymorphic-inlining/src/Main.java
new file mode 100644
index 0000000..d8d09af
--- /dev/null
+++ b/test/576-polymorphic-inlining/src/Main.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2016 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) {
+ for (int i = 0; i < 20000; ++i) {
+ $noinline$testVoid(new Main());
+ $noinline$testVoid(new SubMain());
+ $noinline$testVoid(new SubSubMain());
+
+ $noinline$testWithReturnValue(new Main());
+ $noinline$testWithReturnValue(new SubMain());
+ $noinline$testWithReturnValue(new SubSubMain());
+
+ $noinline$testWithBackEdge(new Main());
+ $noinline$testWithBackEdge(new SubMain());
+ $noinline$testWithBackEdge(new SubSubMain());
+ }
+ }
+
+ public static void assertIdentical(Object expected, Object actual) {
+ if (expected != actual) {
+ throw new Error("Expected " + expected + ", got " + actual);
+ }
+ }
+
+ public static void $noinline$testVoid(Main m) {
+ if (doThrow) throw new Error("");
+ m.willInlineVoid();
+ m.willOnlyInlineForMainVoid();
+ }
+
+ public static void $noinline$testWithReturnValue(Main m) {
+ if (doThrow) throw new Error("");
+ assertIdentical(m.getClass(), m.willInlineWithReturnValue());
+ assertIdentical(m.getClass(), m.willOnlyInlineForMainWithReturnValue());
+ }
+
+ public static void $noinline$testWithBackEdge(Main m) {
+ if (doThrow) throw new Error("");
+ for (int i = 0; i < 10; ++i) {
+ m.willInlineVoid();
+ }
+ for (int i = 0; i < 10; ++i) {
+ m.willOnlyInlineForMainVoid();
+ }
+ }
+
+ public void willInlineVoid() {
+ }
+
+ public void willOnlyInlineForMainVoid() {
+ }
+
+ public Class willInlineWithReturnValue() {
+ return Main.class;
+ }
+
+ public Class willOnlyInlineForMainWithReturnValue() {
+ return Main.class;
+ }
+ public static boolean doThrow;
+}
+
+class SubMain extends Main {
+ public void willOnlyInlineForMainVoid() {
+ if (doThrow) throw new Error("");
+ }
+
+ public void willInlineVoid() {
+ }
+
+ public Class willInlineWithReturnValue() {
+ return SubMain.class;
+ }
+
+ public Class willOnlyInlineForMainWithReturnValue() {
+ return SubMain.class;
+ }
+}
+
+class SubSubMain extends SubMain {
+ public Class willInlineWithReturnValue() {
+ return SubSubMain.class;
+ }
+
+ public Class willOnlyInlineForMainWithReturnValue() {
+ return SubSubMain.class;
+ }
+}