Perf tests for harmony string functions.

R=yangguo@chromium.org

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24765 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/js-perf-test/Strings/Strings.json

+{
+  "path": ["."],
+  "main": "run.js",
+  "flags": ["--harmony-strings"],
+  "run_count": 5,
+  "units": "score",
+  "results_regexp": "^%s\\-Strings\\(Score\\): (.+)$",
+  "total": true,
+  "tests": [
+    {"name": "StringFunctions"}
+  ]
+}

test/js-perf-test/Strings/harmony-string.js

+// Copyright 2014 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('StringFunctions', [1000], [
+  new Benchmark('StringRepeat', false, false, 0,
+                StringRepeat, StringRepeatSetup, StringRepeatTearDown),
+  new Benchmark('StringStartsWith', false, false, 0,
+                StringStartsWith, StringWithSetup, StringWithTearDown),
+  new Benchmark('StringEndsWith', false, false, 0,
+                StringEndsWith, StringWithSetup, StringWithTearDown),
+  new Benchmark('StringContains', false, false, 0,
+                StringContains, StringContainsSetup, StringWithTearDown),
+]);
+
+
+var result;
+
+var stringRepeatSource = "abc";
+
+function StringRepeatSetup() {
+  result = undefined;
+}
+
+function StringRepeat() {
+  result = stringRepeatSource.repeat(500);
+}
+
+function StringRepeatTearDown() {
+  var expected = "";
+  for(var i = 0; i < 1000; i++) {
+    expected += stringRepeatSource;
+  }
+  return result === expected;
+}
+
+
+var str;
+var substr;
+
+function StringWithSetup() {
+  str = "abc".repeat(500);
+  substr = "abc".repeat(200);
+  result = undefined;
+}
+
+function StringWithTearDown() {
+  return !!result;
+}
+
+function StringStartsWith() {
+  result = str.startsWith(substr);
+}
+
+function StringEndsWith() {
+  result = str.endsWith(substr);
+}
+
+function StringContainsSetup() {
+  str = "def".repeat(100) + "abc".repeat(100) + "qqq".repeat(100);
+  substr = "abc".repeat(100);
+}
+
+function StringContains() {
+  result = str.contains(substr);
+}

test/js-perf-test/Strings/run.js

+// Copyright 2014 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('harmony-string.js');
+
+
+var success = true;
+
+function PrintResult(name, result) {
+  print(name + '-Strings(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 });