Move the dart API benchmark to the VM benchmark infrastructure so that it will get run as part of r…

vm/benchmark_test.cc

Index: vm/benchmark_test.cc
===================================================================
--- vm/benchmark_test.cc	(revision 6846)
+++ vm/benchmark_test.cc	(working copy)
@@ -2,8 +2,11 @@
 // 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.
 
+#include "platform/assert.h"
+
 #include "vm/benchmark_test.h"
 #include "vm/dart_api_impl.h"
+#include "vm/unit_test.h"
 
 namespace dart {
 
@@ -55,12 +58,115 @@
     Dart_ShutdownIsolate();
   }
   timer.Stop();
+  int64_t elapsed_time = timer.TotalElapsedTime();
+  benchmark->set_score(elapsed_time / kNumIterations);
   Dart_EnterIsolate(test_isolate);
   Dart_ExitScope();
   Dart_ShutdownIsolate();
   Dart_EnterIsolate(base_isolate);
+}
+
+
+void InitNativeFields(Dart_NativeArguments args) {
+  Dart_EnterScope();
+  int count = Dart_GetNativeArgumentCount(args);
+  EXPECT_EQ(1, count);
+
+  Dart_Handle recv = Dart_GetNativeArgument(args, 0);
+  EXPECT(!Dart_IsError(recv));
+  Dart_Handle result = Dart_SetNativeInstanceField(recv, 0, 7);
+  EXPECT(!Dart_IsError(result));
+
+  Dart_ExitScope();
+}
+
+
+// The specific api functions called here are a bit arbitrary.  We are
+// trying to get a sense of the overhead for using the dart api.
+void UseDartApi(Dart_NativeArguments args) {
+  Dart_EnterScope();
+  int count = Dart_GetNativeArgumentCount(args);
+  EXPECT_EQ(3, count);
+
+  // Get the receiver.
+  Dart_Handle recv = Dart_GetNativeArgument(args, 0);
+  EXPECT(!Dart_IsError(recv));
+
+  // Get param1.
+  Dart_Handle param1 = Dart_GetNativeArgument(args, 1);
+  EXPECT(!Dart_IsError(param1));
+  EXPECT(Dart_IsInteger(param1));
+  bool fits = false;
+  Dart_Handle result = Dart_IntegerFitsIntoInt64(param1, &fits);
+  EXPECT(!Dart_IsError(result) && fits);
+  int64_t value1;
+  result = Dart_IntegerToInt64(param1, &value1);
+  EXPECT(!Dart_IsError(result));
+  EXPECT_LE(0, value1);
+  EXPECT_LE(value1, 1000000);
+
+  // Get native field from receiver.
+  intptr_t value2;
+  result = Dart_GetNativeInstanceField(recv, 0, &value2);
+  EXPECT(!Dart_IsError(result));
+  EXPECT_EQ(7, value2);
+
+  // Return param + receiver.field.
+  Dart_SetReturnValue(args, Dart_NewInteger(value1 * value2));
+  Dart_ExitScope();
+}
+
+
+static Dart_NativeFunction bm_uda_lookup(Dart_Handle name, int argument_count) {
+  const char* cstr = NULL;
+  Dart_Handle result = Dart_StringToCString(name, &cstr);
+  EXPECT(!Dart_IsError(result));
+  if (strcmp(cstr, "init") == 0) {
+    return InitNativeFields;
+  } else {
+    return UseDartApi;
+  }
+}
+
+
+BENCHMARK(UseDartApi) {
+  const int kNumIterations = 100000;
+  const char* kScriptChars =
+      "class Class extends NativeFieldsWrapper{\n"
+      "  int init() native 'init';\n"
+      "  int method(int param1, int param2) native 'method';\n"
+      "}\n"
+      "\n"
+      "void benchmark(int count) {\n"
+      "  Class c = new Class();\n"
+      "  c.init();\n"
+      "  for (int i = 0; i < count; i++) {\n"
+      "    c.method(i,7);\n"
+      "  }\n"
+      "}\n";
+
+  Dart_Handle lib = TestCase::LoadTestScript(
+      kScriptChars,
+      reinterpret_cast<Dart_NativeEntryResolver>(bm_uda_lookup));
+
+  // Create a native wrapper class with native fields.
+  Dart_Handle result = Dart_CreateNativeWrapperClass(
+      lib,
+      Dart_NewString("NativeFieldsWrapper"),
+      1);
+  EXPECT(!Dart_IsError(result));
+
+  Timer timer(true, "UseDartApi benchmark");
+  timer.Start();
+  Dart_Handle args[1];
+  args[0] = Dart_NewInteger(kNumIterations);
+  Dart_Invoke(lib,
+              Dart_NewString("benchmark"),
+              1,
+              args);
+  timer.Stop();
   int64_t elapsed_time = timer.TotalElapsedTime();
-  benchmark->set_score(elapsed_time / kNumIterations);
+  benchmark->set_score(elapsed_time);
 }
 
 }  // namespace dart