ART: General-case negation in boolean simplifier
Code transformations on the HGraph may optimize out the condition
instruction of an If and replace it with a boolean value. In such
case, the boolean simplifier would not know how to negate the
condition and would fail. This patch implements negation in this
general case with 'equals 0' as a substitute for the non-existing
boolean Not instruction.
Bug: 19992954
Change-Id: I152036fcc6bbecccc767d3024a5c060177597d88
diff --git a/test/468-bool-simplifier-regression/src/Main.java b/test/468-bool-simplifier-regression/src/Main.java
new file mode 100644
index 0000000..1dd27c9
--- /dev/null
+++ b/test/468-bool-simplifier-regression/src/Main.java
@@ -0,0 +1,37 @@
+/*
+ * 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.
+ */
+
+import java.lang.reflect.*;
+
+public class Main {
+ public static boolean runTest(boolean input) throws Exception {
+ Class<?> c = Class.forName("TestCase");
+ Method m = c.getMethod("testCase");
+ Field f = c.getField("value");
+ f.set(null, (Boolean) input);
+ return (Boolean) m.invoke(null);
+ }
+
+ public static void main(String[] args) throws Exception {
+ if (runTest(true) != false) {
+ throw new Error("Expected false, got true");
+ }
+
+ if (runTest(false) != true) {
+ throw new Error("Expected true, got false");
+ }
+ }
+}