69 lines
2.4 KiB
JavaScript
69 lines
2.4 KiB
JavaScript
|
// Copyright 2011 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 mkCOWArray() {
|
||
|
|
var a = [''];
|
||
|
|
assertEquals('', a[0]);
|
||
|
|
return a;
|
||
|
|
}
|
||
|
|
|
||
|
|
function mkArray() {
|
||
|
|
var a = [];
|
||
|
|
a[0] = '';
|
||
|
|
return a;
|
||
|
|
}
|
||
|
|
|
||
|
|
function mkNumberDictionary() {
|
||
|
|
var a = new Array();
|
||
|
|
a[0] = '';
|
||
|
|
a[100000] = '';
|
||
|
|
return a;
|
||
|
|
}
|
||
|
|
|
||
|
|
function write(a, i) { a[i] = "bazinga!"; }
|
||
|
|
|
||
|
|
function test(factories, w) {
|
||
|
|
factories.forEach(function(f) { w(f(), 0); });
|
||
|
|
factories.forEach(function(f) { w(f(), 0); });
|
||
|
|
%OptimizeFunctionOnNextCall(w);
|
||
|
|
factories.forEach(function(f) { w(f(), 0); });
|
||
|
|
}
|
||
|
|
|
||
|
|
// Monomorphic case.
|
||
|
|
for (var i = 0; i < 5; i++) write(mkArray(), 0);
|
||
|
|
%OptimizeFunctionOnNextCall(write);
|
||
|
|
write(mkCOWArray(), 0);
|
||
|
|
var failure = mkCOWArray();
|
||
|
|
|
||
|
|
// Cleanup, then polymorphic case.
|
||
|
|
%DeoptimizeFunction(write);
|
||
|
|
gc();
|
||
|
|
test([mkArray, mkNumberDictionary], write);
|
||
|
|
test([mkArray, mkNumberDictionary, mkCOWArray], write);
|