1 files changed, 95 insertions, 0 deletions
diff --git a/test/638-checker-inline-cache-intrinsic/src/Main.java b/test/638-checker-inline-cache-intrinsic/src/Main.java
new file mode 100644
index 00000000000..472cbf68bc9
--- /dev/null
+++ b/test/638-checker-inline-cache-intrinsic/src/Main.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2017 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 {
+
+  /// CHECK-START: char Main.$noinline$inlineMonomorphic(java.lang.CharSequence) inliner (before)
+  /// CHECK:       InvokeInterface method_name:java.lang.CharSequence.charAt
+
+  /// CHECK-START: char Main.$noinline$inlineMonomorphic(java.lang.CharSequence) inliner (after)
+  /// CHECK:       Deoptimize
+  /// CHECK:       InvokeVirtual method_name:java.lang.String.charAt intrinsic:StringCharAt
+
+  /// CHECK-START: char Main.$noinline$inlineMonomorphic(java.lang.CharSequence) instruction_simplifier$after_inlining (after)
+  /// CHECK:       Deoptimize
+  /// CHECK-NOT:   InvokeInterface
+  /// CHECK-NOT:   InvokeVirtual
+
+  public static char $noinline$inlineMonomorphic(CharSequence cs) {
+    return cs.charAt(0);
+  }
+
+  /// CHECK-START: char Main.$noinline$knownReceiverType() inliner (before)
+  /// CHECK:       InvokeInterface method_name:java.lang.CharSequence.charAt
+
+  /// CHECK-START: char Main.$noinline$knownReceiverType() inliner (after)
+  /// CHECK:       InvokeVirtual method_name:java.lang.String.charAt intrinsic:StringCharAt
+
+  /// CHECK-START: char Main.$noinline$knownReceiverType() instruction_simplifier$after_inlining (after)
+  /// CHECK-NOT:   InvokeInterface
+  /// CHECK-NOT:   InvokeVirtual
+
+  public static char $noinline$knownReceiverType() {
+    CharSequence cs = "abc";
+    return cs.charAt(1);
+  }
+
+  /// CHECK-START: boolean Main.$noinline$stringEquals(java.lang.Object) inliner (before)
+  /// CHECK:       InvokeVirtual method_name:java.lang.Object.equals intrinsic:None
+
+  /// CHECK-START: boolean Main.$noinline$stringEquals(java.lang.Object) inliner (after)
+  /// CHECK:       Deoptimize
+  /// CHECK:       InvokeVirtual method_name:java.lang.Object.equals intrinsic:StringEquals
+
+  /// CHECK-START: boolean Main.$noinline$stringEquals(java.lang.Object) instruction_simplifier$after_inlining (after)
+  /// CHECK:       Deoptimize
+  /// CHECK:       InvokeVirtual method_name:java.lang.Object.equals intrinsic:StringEquals
+
+  public static boolean $noinline$stringEquals(Object obj) {
+    return obj.equals("def");
+  }
+
+  public static void test() {
+    // Warm up inline cache.
+    for (int i = 0; i < 45; i++) {
+      $noinline$inlineMonomorphic(str);
+    }
+    for (int i = 0; i < 60; i++) {
+      $noinline$stringEquals(str);
+    }
+    ensureJitCompiled(Main.class, "$noinline$stringEquals");
+    ensureJitCompiled(Main.class, "$noinline$inlineMonomorphic");
+    ensureJitCompiled(Main.class, "$noinline$knownReceiverType");
+    if ($noinline$inlineMonomorphic(str) != 'x') {
+      throw new Error("Expected x");
+    }
+    if ($noinline$knownReceiverType() != 'b') {
+      throw new Error("Expected b");
+    }
+    if ($noinline$stringEquals("abc")) {
+      throw new Error("Expected false");
+    }
+  }
+
+  public static void main(String[] args) {
+    System.loadLibrary(args[0]);
+    test();
+  }
+
+  static String str = "xyz";
+
+  private static native void ensureJitCompiled(Class<?> itf, String method_name);
+}