v8/test/js-perf-test/RegExp/base_exec.js

// Copyright 2016 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.

d8.file.execute("base.js");

var str;
var re;

function Exec() {
  re.exec(str);
}

function Exec1Setup() {
  re = /[Cz]/;
  str = createHaystack();
}

function Exec2Setup() {
  re = /[Cz]/g;
  str = createHaystack();
}

function Exec3Setup() {
  re = /([Cz])/y;
  str = createHaystack();
}

function Exec4Setup() {
  re = /[cZ]/;
  str = createHaystack();
}

function Exec5Setup() {
  re = /[cZ]/g;
  str = createHaystack();
}

function Exec6Setup() {
  re = /([cZ])/y;
  str = createHaystack();
}

function Exec7Setup() {
  re = /[Cz]/gy;
  re.lastIndex = 2 ** 32;
  str = createHaystack();
}

var benchmarks = [ [Exec, Exec1Setup],
                   [Exec, Exec2Setup],
                   [Exec, Exec3Setup],
                   [Exec, Exec4Setup],
                   [Exec, Exec5Setup],
                   [Exec, Exec6Setup],
                   [Exec, Exec7Setup],
                 ];