1 // Copyright 2013 the V8 project authors. All rights reserved. 2 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions 6 // are met: 7 // 1. Redistributions of source code must retain the above copyright 8 // notice, this list of conditions and the following disclaimer. 9 // 2. Redistributions in binary form must reproduce the above copyright 10 // notice, this list of conditions and the following disclaimer in the 11 // documentation and/or other materials provided with the distribution. 12 // 13 // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 24 description( 25 "Tests that if you alias the arguments in a very small function, arguments simplification still works even if you overwrite the arguments register." 26 ); 27 28 function foo() { 29 var args = arguments; 30 arguments = [1, 2, 3]; 31 return args[0] + arguments[1] + args[2]; 32 } 33 34 var result = ""; 35 for (var i = 0; i < 300; ++i) { 36 var a; 37 if (i < 200) 38 a = i; 39 else 40 a = "hello"; 41 var b = i + 1; 42 var c = i + 3; 43 result += foo(a, b, c); 44 } 45 shouldBe("result", "\"579111315171921232527293133353739414345474951535557596163656769717375777981838587899193959799101103105107109111113115117119121123125127129131133135137139141143145147149151153155157159161163165167169171173175177179181183185187189191193195197199201203205207209211213215217219221223225227229231233235237239241243245247249251253255257259261263265267269271273275277279281283285287289291293295297299301303305307309311313315317319321323325327329331333335337339341343345347349351353355357359361363365367369371373375377379381383385387389391393395397399401403hello2203hello2204hello2205hello2206hello2207hello2208hello2209hello2210hello2211hello2212hello2213hello2214hello2215hello2216hello2217hello2218hello2219hello2220hello2221hello2222hello2223hello2224hello2225hello2226hello2227hello2228hello2229hello2230hello2231hello2232hello2233hello2234hello2235hello2236hello2237hello2238hello2239hello2240hello2241hello2242hello2243hello2244hello2245hello2246hello2247hello2248hello2249hello2250hello2251hello2252hello2253hello2254hello2255hello2256hello2257hello2258hello2259hello2260hello2261hello2262hello2263hello2264hello2265hello2266hello2267hello2268hello2269hello2270hello2271hello2272hello2273hello2274hello2275hello2276hello2277hello2278hello2279hello2280hello2281hello2282hello2283hello2284hello2285hello2286hello2287hello2288hello2289hello2290hello2291hello2292hello2293hello2294hello2295hello2296hello2297hello2298hello2299hello2300hello2301hello2302\""); 46
