1 files changed, 83 insertions, 0 deletions
diff --git a/test/1961-checker-loop-vectorizer/src/Main.java b/test/1961-checker-loop-vectorizer/src/Main.java
new file mode 100644
index 0000000000..4d521a1a58
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+++ b/test/1961-checker-loop-vectorizer/src/Main.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+
+/**
+ * Test corner cases for loop vectorizer.
+ */
+public class Main {
+  /// CHECK-START: void Main.$noinline$testDivZeroCheck() loop_optimization (before)
+  /// CHECK: DivZeroCheck
+  /// CHECK-NOT: DivZeroCheck
+  /// CHECK-START: void Main.$noinline$testDivZeroCheck() loop_optimization (after)
+  /// CHECK: DivZeroCheck
+  public static void $noinline$testDivZeroCheck() {
+    int[] a = new int[10];
+    for (int i = 0; i < a.length; ++i) {
+      int x = 42 / 0;  // unused but throwing
+      a[i] = 42;
+    }
+  }
+
+  static class Base {}
+  static class Foo extends Base {}
+  static class Bar extends Base {}
+
+  /// CHECK-START: void Main.$noinline$testCheckCast() loop_optimization (before)
+  /// CHECK: CheckCast
+  /// CHECK-NOT: CheckCast
+  /// CHECK-START: void Main.$noinline$testCheckCast() loop_optimization (after)
+  /// CHECK: CheckCast
+  public static void $noinline$testCheckCast() {
+    Base base = new Foo();
+    int[] a = new int[10];
+    for (int i = 0; i < a.length; ++i) {
+      Bar bar = (Bar) base;  // unused but throwing
+      a[i] = 42;
+    }
+  }
+
+  /// CHECK-START: void Main.$noinline$testBoundsCheck() loop_optimization (before)
+  /// CHECK: BoundsCheck
+  /// CHECK-NOT: BoundsCheck
+  /// CHECK-START: void Main.$noinline$testBoundsCheck() loop_optimization (after)
+  /// CHECK: BoundsCheck
+  public static void $noinline$testBoundsCheck() {
+    int[] a = new int[10];
+    for (int i = 0; i < a.length; ++i) {
+      int x = a[11];  // unused but throwing
+      a[i] = 42;
+    }
+  }
+
+  public static void main(String[] args) {
+    // We must not optimize any of the exceptions away.
+    try {
+      $noinline$testDivZeroCheck();
+    } catch (java.lang.ArithmeticException e) {
+      System.out.println("DivZeroCheck");
+    }
+    try {
+      $noinline$testCheckCast();
+    } catch (java.lang.ClassCastException e) {
+      System.out.println("CheckCast");
+    }
+    try {
+      $noinline$testBoundsCheck();
+    } catch (java.lang.ArrayIndexOutOfBoundsException e) {
+      System.out.println("BoundsCheck");
+    }
+  }
+}