1 files changed, 48 insertions, 0 deletions
diff --git a/test/2279-second-inner-loop-references-first/src/Main.java b/test/2279-second-inner-loop-references-first/src/Main.java
new file mode 100644
index 0000000000..122e370d8c
--- /dev/null
+++ b/test/2279-second-inner-loop-references-first/src/Main.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2024 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.
+ */
+
+class Main {
+    public static void main(String[] h) {
+        assertIntEquals(50, $noinline$SecondInnerLoopReferencesFirst());
+    }
+
+    static int $noinline$SecondInnerLoopReferencesFirst() {
+        int f = 0;
+        for (int outer = 0; outer < 5; outer++) {
+            // This will create a Phi[const_3, const_1] that we eliminate in loop optimization
+            byte ab = 3;
+            // This loop will be eliminated but the next loop will be referencing this one as the
+            // `ab` is used in the addition below, which used to lead to a crash. The reason for the
+            // crash is that we are not updating the induction variables correctly and they are
+            // pointing to a deleted instruction.
+            for (int first_inner = 0; first_inner < 5; first_inner++) {
+                ab = 1;
+            }
+            byte i = 0;
+            for (int second_inner = 0; second_inner < 10; second_inner++) {
+                i += ab;
+            }
+            f += (int) i;
+        }
+        return f;
+    }
+
+    public static void assertIntEquals(int expected, int result) {
+        if (expected != result) {
+            throw new Error("Expected: " + expected + ", found: " + result);
+        }
+    }
+}