Inline and optimize interface calls.

- Support for inlining methods with invoke-interface (the
  previous performance limitation is now fixed with the new
  ImtConflictTable).
- Turn non inlineable invoke-interface into invoke-virtual to
  avoid any potential execution of the conflict trampoline.

test:609-checker-inline-interface

Change-Id: Ibe33bc945deaada8fb78541e6e0bf034ebb52420

1 files changed, 70 insertions, 0 deletions

diff --git a/test/609-checker-inline-interface/src/Main.java b/test/609-checker-inline-interface/src/Main.java
new file mode 100644
index 0000000000..e9b3e87881
--- /dev/null
+++ b/test/609-checker-inline-interface/src/Main.java
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2016 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 final class Main implements Interface {
+
+  static void methodWithInvokeInterface(Interface interf) {
+    interf.$noinline$doCall();
+  }
+
+  public void $noinline$doCall() {
+    if (doThrow) throw new Error("");
+  }
+
+  public static void main(String[] args) {
+    testInlineInterfaceCall();
+    testInterfaceToVirtualCall();
+  }
+
+  /// CHECK-START: void Main.testInlineInterfaceCall() inliner (before)
+  /// CHECK:                          InvokeStaticOrDirect method_name:Main.methodWithInvokeInterface
+
+  /// CHECK-START: void Main.testInlineInterfaceCall() inliner (before)
+  /// CHECK-NOT:                      InvokeInterface
+
+  /// CHECK-START: void Main.testInlineInterfaceCall() inliner (after)
+  /// CHECK:                          InvokeInterface method_name:Interface.$noinline$doCall
+
+  /// CHECK-START: void Main.testInlineInterfaceCall() inliner (after)
+  /// CHECK-NOT:                      InvokeStaticOrDirect
+  public static void testInlineInterfaceCall() {
+    methodWithInvokeInterface(itf);
+  }
+
+  /// CHECK-START: void Main.testInterfaceToVirtualCall() inliner (before)
+  /// CHECK:                          InvokeStaticOrDirect method_name:Main.methodWithInvokeInterface
+
+  /// CHECK-START: void Main.testInterfaceToVirtualCall() inliner (before)
+  /// CHECK-NOT:                      InvokeInterface
+
+  /// CHECK-START: void Main.testInterfaceToVirtualCall() inliner (after)
+  /// CHECK:                          InvokeVirtual method_name:Main.$noinline$doCall
+
+  /// CHECK-START: void Main.testInterfaceToVirtualCall() inliner (after)
+  /// CHECK-NOT:                      InvokeStaticOrDirect
+  /// CHECK-NOT:                      InvokeInterface
+  public static void testInterfaceToVirtualCall() {
+    methodWithInvokeInterface(m);
+  }
+
+  static Interface itf = new Main();
+  static Main m = new Main();
+  static boolean doThrow = false;
+}
+
+interface Interface {
+  public void $noinline$doCall();
+}