Mul simplification should expect zero operand

It is possible that zero constant can appear due to
simplification of other instructions, so we cannot expect
zero handling from constant optimizations.

Change-Id: I084126fd0c106ac2683c4f10a451960d9807f4f6
Signed-off-by: Serguei Katkov <serguei.i.katkov@intel.com>

3 files changed, 31 insertions, 0 deletions

diff --git a/test/475-simplify-mul-zero/expected.txt b/test/475-simplify-mul-zero/expected.txt
new file mode 100644
index 0000000..7ed6ff8
--- /dev/null
+++ b/test/475-simplify-mul-zero/expected.txt
@@ -0,0 +1 @@
+5
diff --git a/test/475-simplify-mul-zero/info.txt b/test/475-simplify-mul-zero/info.txt
new file mode 100644
index 0000000..0db11f2
--- /dev/null
+++ b/test/475-simplify-mul-zero/info.txt
@@ -0,0 +1,2 @@
+Regression check for optimizing simplify instruction pass.
+Mul should expect zero constant as input.
\ No newline at end of file
diff --git a/test/475-simplify-mul-zero/src/Main.java b/test/475-simplify-mul-zero/src/Main.java
new file mode 100644
index 0000000..57adcff
--- /dev/null
+++ b/test/475-simplify-mul-zero/src/Main.java
@@ -0,0 +1,28 @@
+/*
+ * 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) {
+    long l3 = 2207693990L;
+    int i12 = 5;
+
+    for (int i = 1; i < 2; ++i) {
+        i12 ^= (int)(-((-(-(l3 - l3))) * i));
+    }
+
+    System.out.println(i12);
+  }
+}