diff --git a/src/test/java/com/android/tools/r8/ir/optimize/string/InvokeInterfaceToStringEqualsTest.java b/src/test/java/com/android/tools/r8/ir/optimize/string/InvokeInterfaceToStringEqualsTest.java
new file mode 100644
index 0000000..e13ca1b
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/ir/optimize/string/InvokeInterfaceToStringEqualsTest.java
@@ -0,0 +1,74 @@
+// Copyright (c) 2022, the R8 project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+package com.android.tools.r8.ir.optimize.string;
+
+import com.android.tools.r8.TestBase;
+import com.android.tools.r8.TestParameters;
+import com.android.tools.r8.TestParametersCollection;
+import com.android.tools.r8.ToolHelper.DexVm.Version;
+import com.android.tools.r8.utils.AndroidApiLevel;
+import java.io.IOException;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameter;
+import org.junit.runners.Parameterized.Parameters;
+import org.objectweb.asm.Opcodes;
+
+/** Reproduction for b/230821936. */
+@RunWith(Parameterized.class)
+public class InvokeInterfaceToStringEqualsTest extends TestBase {
+
+  @Parameter(0)
+  public TestParameters parameters;
+
+  @Parameters(name = "{0}")
+  public static TestParametersCollection data() {
+    return getTestParameters().withAllRuntimesAndApiLevels().build();
+  }
+
+  @Test
+  public void test() throws Exception {
+    testForR8(parameters.getBackend())
+        .addProgramClassFileData(getTransformedMain())
+        .addKeepMainRule(Main.class)
+        .addDontOptimize()
+        .setMinApi(parameters.getApiLevel())
+        .run(parameters.getRuntime(), Main.class)
+        .applyIf(
+            parameters.isDexRuntimeVersion(Version.V8_1_0)
+                && parameters.getApiLevel().isGreaterThan(AndroidApiLevel.B),
+            // TODO(b/231450655): Should evaluate to "false".
+            runResult -> runResult.assertSuccessWithOutputLines("true"),
+            runResult -> runResult.assertSuccessWithOutputLines("false"));
+  }
+
+  private static byte[] getTransformedMain() throws IOException {
+    return transformer(Main.class)
+        .transformMethodInsnInMethod(
+            "main",
+            (opcode, owner, name, descriptor, isInterface, continuation) -> {
+              if (name.equals("equals")) {
+                continuation.visitMethodInsn(
+                    Opcodes.INVOKEINTERFACE,
+                    binaryName(CharSequence.class),
+                    name,
+                    descriptor,
+                    true);
+              } else {
+                continuation.visitMethodInsn(opcode, owner, name, descriptor, isInterface);
+              }
+            })
+        .transform();
+  }
+
+  static class Main {
+
+    public static void main(String[] args) {
+      String s = System.currentTimeMillis() > 0 ? "foo" : "bar";
+      System.out.println(s.equals("baz"));
+    }
+  }
+}