v8/test/mjsunit/regress/regress-85177.js
fschneider@chromium.org 68eab4a8d8 Fix bug with GVN on array loads.
This fixes a bug where an array load was incorrectly hoisted by GVN.

BUG=85177
TEST=mjsunit/regress/regress-85177.js
Review URL: http://codereview.chromium.org/7003054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8230 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2011-06-09 11:15:03 +00:00

66 lines
2.1 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
gW=gH=175;
g=[];
for(var n=0; n<gW; n++){
var l=[];
for(var p=0; p<gH; p++){
l.push(1)
}
g.push(l)
}
function k(a,b){
if(a<0||b<0||a>=gW||b>=gH)
return 0;
return g[a][b];
}
function f(){
for(var a=[],f=0; f<gW; f++){
var b=[];
for(var h=0; h<gH; h++){
var e=0;
for(var i=-1; i<=1; i++)
for(var j=-1; j<=1; j++)
e+=k(f+i,h+j);
e=k(f,h)==1?1:0;
b.push(e)
}
a.push(b)
}
}
f();
%OptimizeFunctionOnNextCall(f);
f();