Revert "Revert "Do not update the type of something we already know.""

This reverts commit 63107a804ce17db9789051e1fe310d99d1dae1cb.

bug:22116987

(cherry picked from commit f9a199571417b5a5a62d94d05a064077e14dd2c4)

Change-Id: Ia516f2cbce6d22df37f3a0854abdd0b54d3ea72d

3 files changed, 27 insertions, 0 deletions

diff --git a/test/519-bound-load-class/expected.txt b/test/519-bound-load-class/expected.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/test/519-bound-load-class/expected.txt
diff --git a/test/519-bound-load-class/info.txt b/test/519-bound-load-class/info.txt
new file mode 100644
index 0000000..5763962
--- /dev/null
+++ b/test/519-bound-load-class/info.txt
@@ -0,0 +1,3 @@
+Regression test for the optimizing compiler that
+used to crash when a `HCheckCast` did not have a `HLoadClass`
+as second input.
diff --git a/test/519-bound-load-class/src/Main.java b/test/519-bound-load-class/src/Main.java
new file mode 100644
index 0000000..41bb951
--- /dev/null
+++ b/test/519-bound-load-class/src/Main.java
@@ -0,0 +1,24 @@
+/*
+ * 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) {
+    Object o = Main.class;
+    if (o instanceof Main) {
+      System.out.println((Main)o);
+    }
+  }
+}