AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity

Require typed input representation for HTypeof hydrogen instruction.

Browse Source 
BUG=http://code.google.com/p/chromium/issues/detail?id=71647
TEST=test/mjsunit/regress/regress-71647.js

Review URL: http://codereview.chromium.org/6410025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6566 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
vegorov@chromium.org 2011-02-02 09:52:57 +00:00
parent cb0a7bc748
commit 6751627615
2 changed files with 38 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/hydrogen-instructions.h
View File

@ -3073,6 +3073,10 @@ class HTypeof: public HUnaryOperation {
set_representation(Representation::Tagged());
}
virtual Representation RequiredInputRepresentation(int index) const {
return Representation::Tagged();
}
DECLARE_CONCRETE_INSTRUCTION(Typeof, "typeof")
};

34
test/mjsunit/regress/regress-71647.js Normal file
View File

@ -0,0 +1,34 @@
// 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.
var qe = 'object';
function g() {
for (var i = 0; i < 10000; i++) typeof i === qe;
}
g();