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Diffstat (limited to 'test/mjsunit/regress/regress-117409.js')
-rw-r--r-- | test/mjsunit/regress/regress-117409.js | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/test/mjsunit/regress/regress-117409.js b/test/mjsunit/regress/regress-117409.js new file mode 100644 index 00000000..9222191a --- /dev/null +++ b/test/mjsunit/regress/regress-117409.js @@ -0,0 +1,52 @@ +// Copyright 2012 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: --expose-gc + +function KeyedStoreIC(a) { a[0] = Math.E; } + +// Create literal with a fast double elements backing store +var literal = [1.2]; + +// Specialize the IC for fast double elements +KeyedStoreIC(literal); +KeyedStoreIC(literal); + +// Trruncate array to 0 elements, at which point backing store will be replaced +// with empty fixed array. +literal.length = 0; + +// ArrayPush built-in will replace empty fixed array backing store with 19 +// elements fixed array backing store. This leads to a mismatch between the map +// and the backing store. Debug mode will crash here in set_elements accessor. +literal.push(Math.E, Math.E); + +// Corrupt the backing store! +KeyedStoreIC(literal); + +// Release mode will crash here when trying to visit parts of E as pointers. +gc(); |