Micro benchmark for Try-Catch-Finally

BUG=v8:4131
LOG=n

Review URL: https://codereview.chromium.org/1155493007

Cr-Commit-Position: refs/heads/master@{#28789}

test/js-perf-test/Exceptions/run.js

+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+
+load('../base.js');
+load('try-catch.js');
+
+var success = true;
+
+function PrintResult(name, result) {
+  print(name + '-Exceptions(Score): ' + result);
+}
+
+
+function PrintError(name, error) {
+  PrintResult(name, error);
+  success = false;
+}
+
+
+BenchmarkSuite.config.doWarmup = undefined;
+BenchmarkSuite.config.doDeterministic = undefined;
+
+BenchmarkSuite.RunSuites({ NotifyResult: PrintResult,
+                           NotifyError: PrintError });

test/js-perf-test/Exceptions/try-catch.js

+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+new BenchmarkSuite('Try-Catch', [1000], [
+  new Benchmark('OnSuccess', false, false, 0,
+                OnSuccess, OnSuccessSetup,
+                OnSuccessTearDown),
+  new Benchmark('OnException', false, false, 0,
+                OnException, OnExceptionSetup,
+                OnExceptionTearDown),
+  new Benchmark('OnSuccessFinallyOnly', false, false, 0,
+                OnSuccessFinallyOnly, OnSuccessFinallyOnlySetup,
+                OnSuccessFinallyOnlyTearDown),
+  new Benchmark('WithFinallyOnException', false, false, 0,
+                WithFinallyOnException, WithFinallyOnExceptionSetup, WithFinallyOnExceptionTearDown)
+]);
+
+var a;
+var b;
+var c;
+
+// ----------------------------------------------------------------------------
+
+function OnSuccessSetup() {
+  var a = 4;
+  var b = 6;
+  var c = 0;
+}
+
+function OnSuccess() {
+  try {
+    c = a + b;
+  }
+  catch (e) {
+  }
+}
+
+function OnSuccessTearDown() {
+  return c === 10;
+}
+
+// ----------------------------------------------------------------------------
+
+function OnExceptionSetup() {
+  var a = 4;
+  var b = 6;
+  var c = 0;
+}
+
+function OnException() {
+  try {
+    throw 'Test exception';
+  }
+  catch (e) {
+    c = a + b;
+  }
+}
+
+function OnExceptionTearDown() {
+  return c === 10;
+}
+
+// ----------------------------------------------------------------------------
+
+function OnSuccessFinallyOnlySetup() {
+  var a = 4;
+  var b = 6;
+  var c = 0;
+}
+
+function OnSuccessFinallyOnly() {
+  try {
+    c = a + b;
+  }
+  finally {
+    c++;
+  }
+}
+
+function OnSuccessFinallyOnlyTearDown() {
+  return c === 11;
+}
+
+// ----------------------------------------------------------------------------
+
+function WithFinallyOnExceptionSetup() {
+  var a = 4;
+  var b = 6;
+  var c = 0;
+}
+
+function WithFinallyOnException() {
+  try {
+    throw 'Test exception';
+  }
+  catch (e) {
+    c = a + b;
+  }
+  finally {
+    c++;
+  }
+}
+
+function WithFinallyOnExceptionTearDown() {
+  return c === 11;
+}
+// ----------------------------------------------------------------------------

test/js-perf-test/JSTests.json

@@ -116,6 +116,16 @@
       "tests": [
         {"name": "With"}
       ]
+    },
+    {
+      "name": "Exceptions",
+      "path": ["Exceptions"],
+      "main": "run.js",
+      "resources": ["try-catch.js"],
+      "results_regexp": "^%s\\-Exceptions\\(Score\\): (.+)$",
+      "tests": [
+        {"name": "Try-Catch"}
+      ]
     }
   ]
 }