JezK
Edit File: optimized-function-calls.js
// Copyright 2010 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following // disclaimer in the documentation and/or other materials provided // with the distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // Flags: --allow-natives-syntax --expose-gc function f() { gc(); return 87; } var x = 42, y = 99; function g() { return x | f() | (y | (x | (f() | x))); } f(); // Give us a chance to optimize f. assertEquals(42 | 87 | 99, g()); // Regression test for issue where we would try do an illegal // compile-time lookup on a null prototype. var object = { f: function() { return 42; }, x: 42 }; delete object.x; function call_f(o) { return o.f(); } for (var i = 0; i < 5; i++) call_f(object); %OptimizeFunctionOnNextCall(call_f); call_f(object); // Check that nested global function calls work. function f0() { return 42; } function f1(a) { return a; } function f2(a, b) { return a * b; } function f3(a, b, c) { return a + b - c; } function f4(a, b, c, d) { return a * b + c - d; } function nested() { return f4(f3(f2(f1(f0()),f0()),f1(f0()),f0()),f2(f1(f0()),f0()),f1(f0()),f0()) + f4(f0(),f1(f0()),f2(f1(f0()),f0()),f3(f2(f1(f0()),f0()),f1(f0()),f0())); } assertEquals(3113460, nested());