1 files changed, 120 insertions, 0 deletions
diff --git a/deps/v8/test/js-perf-test/ArrayLiteralInitialSpreadSmallSmiSet/run.js b/deps/v8/test/js-perf-test/ArrayLiteralInitialSpreadSmallSmiSet/run.js
new file mode 100644
index 0000000000..35e9bcec07
--- /dev/null
+++ b/deps/v8/test/js-perf-test/ArrayLiteralInitialSpreadSmallSmiSet/run.js
@@ -0,0 +1,120 @@
+// Copyright 2018 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.
+
+// Comparing different iterating schemes against spread initial literals.
+// Benchmarks for small smi sets.
+
+var keys = Array.from(Array(50).keys());
+var set = new Set(keys);
+
+// ----------------------------------------------------------------------------
+// Benchmark: Spread
+// ----------------------------------------------------------------------------
+
+function Spread() {
+  var newArr = [...set];
+  // basic sanity check
+  if (newArr.length != set.size) throw 666;
+  return newArr;
+}
+
+// ----------------------------------------------------------------------------
+// Benchmark: SpreadKeys
+// ----------------------------------------------------------------------------
+
+function SpreadKeys() {
+  var newArr = [...set.keys()];
+  // basic sanity check
+  if (newArr.length != set.size) throw 666;
+  return newArr;
+}
+
+// ----------------------------------------------------------------------------
+// Benchmark: SpreadValues
+// ----------------------------------------------------------------------------
+
+function SpreadValues() {
+  var newArr = [...set.values()];
+  // basic sanity check
+  if (newArr.length != set.size) throw 666;
+  return newArr;
+}
+
+// ----------------------------------------------------------------------------
+// Benchmark: ForOf
+// ----------------------------------------------------------------------------
+
+function ForOf() {
+  var newArr = new Array(set.size);
+  var i = 0;
+  for (let x of set) {
+    newArr[i] = x;
+    i++;
+  }
+  if (newArr.length != set.size) throw 666;
+  return newArr;
+}
+
+// ----------------------------------------------------------------------------
+// Benchmark: ForOfKeys
+// ----------------------------------------------------------------------------
+
+function ForOfKeys() {
+  var newArr = new Array(set.size);
+  var i = 0;
+  for (let x of set.keys()) {
+    newArr[i] = x;
+    i++;
+  }
+  if (newArr.length != set.size) throw 666;
+  return newArr;
+}
+
+// ----------------------------------------------------------------------------
+// Benchmark: ForOfValues
+// ----------------------------------------------------------------------------
+
+function ForOfValues() {
+  var newArr = new Array(set.size);
+  var i = 0;
+  for (let x of set.values()) {
+    newArr[i] = x;
+    i++;
+  }
+  if (newArr.length != set.size) throw 666;
+  return newArr;
+}
+
+// ----------------------------------------------------------------------------
+// Setup and Run
+// ----------------------------------------------------------------------------
+
+load('../base.js');
+
+var success = true;
+
+function PrintResult(name, result) {
+  print(name + '-ArrayLiteralInitialSpreadSmallSmiSet(Score): ' + result);
+}
+
+function PrintError(name, error) {
+  PrintResult('Error: ' + name, error);
+  success = false;
+}
+
+function CreateBenchmark(name, f) {
+  new BenchmarkSuite(name, [1000], [ new Benchmark(name, false, false, 0, f) ]);
+}
+
+CreateBenchmark('ForOf', ForOf);
+CreateBenchmark('ForOfKeys', ForOfKeys);
+CreateBenchmark('ForOfValues', ForOfValues);
+CreateBenchmark('Spread', Spread);
+CreateBenchmark('SpreadKeys', SpreadKeys);
+CreateBenchmark('SpreadValues', SpreadValues);
+
+
+BenchmarkSuite.config.doWarmup = true;
+BenchmarkSuite.config.doDeterministic = false;
+BenchmarkSuite.RunSuites({NotifyResult: PrintResult, NotifyError: PrintError});