Revision: 12163
Author: [email protected]
Date: Fri Jul 20 06:57:39 2012
Log: Merged r11533 into 3.8 branch.
Properly set ElementsKind of empty FAST_DOUBLE_ELEMENTS arrays when
transitioning.
[email protected]
BUG=chromium:117409
Review URL: https://chromiumcodereview.appspot.com/10815034
http://code.google.com/p/v8/source/detail?r=12163
Added:
/branches/3.8/test/mjsunit/regress/regress-117409.js
Modified:
/branches/3.8/src/version.cc
=======================================
--- /dev/null
+++ /branches/3.8/test/mjsunit/regress/regress-117409.js Fri Jul 20
06:57:39 2012
@@ -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();
=======================================
--- /branches/3.8/src/version.cc Fri Jul 20 05:04:13 2012
+++ /branches/3.8/src/version.cc Fri Jul 20 06:57:39 2012
@@ -35,7 +35,7 @@
#define MAJOR_VERSION 3
#define MINOR_VERSION 8
#define BUILD_NUMBER 9
-#define PATCH_LEVEL 25
+#define PATCH_LEVEL 26
// Use 1 for candidates and 0 otherwise.
// (Boolean macro values are not supported by all preprocessors.)
#define IS_CANDIDATE_VERSION 0
--
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