v8/test/mjsunit/compiler/regress-1394.js
fschneider@chromium.org 66911961cf Fix bug in optimized compiler's switch-statement.
In the case where the default-clause occurs as the first clause,
the case-blocks were not wired up correctly.

BUG=v8:1394
TEST=mjsunit/compiler/regress-1394.js
Review URL: http://codereview.chromium.org/7037023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7927 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2011-05-18 11:06:07 +00:00

60 lines
2.0 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
function f(x) {
var ret = -1;
switch(x){
default:
case 0:
ret = 0;
break;
case 1:
ret = 1;
break;
case 2:
ret = 2;
break;
case 3:
ret = 3;
break;
case 4:
ret = 4;
break;
}
return ret;
};
for (var i = 0; i < 3; i++) assertEquals(i, f(i));
%OptimizeFunctionOnNextCall(f);
assertEquals(0, f(0));
assertEquals(1, f(1));