diff options
Diffstat (limited to 'deps/v8/test/webkit/dfg-branch-not-fail.js')
| -rw-r--r-- | deps/v8/test/webkit/dfg-branch-not-fail.js | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/deps/v8/test/webkit/dfg-branch-not-fail.js b/deps/v8/test/webkit/dfg-branch-not-fail.js new file mode 100644 index 0000000000..af7ba97052 --- /dev/null +++ b/deps/v8/test/webkit/dfg-branch-not-fail.js @@ -0,0 +1,54 @@ +// Copyright 2013 the V8 project authors. All rights reserved. +// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions +// are met: +// 1. Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// 2. 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. +// +// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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. + +description( +"Check that short-circuiting Branch(LogicalNot(@a)) and then failing speculation does not result in the branch being taken the wrong way." +); + +function foo(a) { + if (a.f) + return 1; + return 0; +} + +function bar(a) { + var b = !a.f; + if (b) + return 1; + return 0; +} + +var True = true; +var False = false; +for (var i = 0; i < 200; ++i) { + var x; + if (i == 100) { + True = "string"; + False = void 0; + } + shouldBe("foo({f:True})", "1"); + shouldBe("foo({f:False})", "0"); + shouldBe("bar({f:True})", "0"); + shouldBe("bar({f:False})", "1"); +} + |