Revision: 19969
Author: [email protected]
Date: Mon Mar 17 09:38:01 2014 UTC
Log: Fix typo in r19923 (bounds check offset propagation)
BUG=chromium:352929
LOG=n
[email protected]
Review URL: https://codereview.chromium.org/201303002
http://code.google.com/p/v8/source/detail?r=19969
Added:
/branches/bleeding_edge/test/mjsunit/regress/regress-crbug-352929.js
Modified:
/branches/bleeding_edge/src/hydrogen-bce.cc
=======================================
--- /dev/null
+++ /branches/bleeding_edge/test/mjsunit/regress/regress-crbug-352929.js
Mon Mar 17 09:38:01 2014 UTC
@@ -0,0 +1,33 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax
+
+var dummy = new Int32Array(100);
+array = new Int32Array(100);
+var dummy2 = new Int32Array(100);
+
+array[-17] = 0;
+function fun(base,cond) {
+ array[base - 1] = 1;
+ array[base - 2] = 2;
+ if (cond) {
+ array[base - 4] = 3;
+ array[base - 5] = 4;
+ } else {
+ array[base - 6] = 5;
+ array[base - 100] = 777;
+ }
+}
+fun(5,true);
+fun(7,false);
+%OptimizeFunctionOnNextCall(fun);
+fun(7,false);
+
+for (var i = 0; i < dummy.length; i++) {
+ assertEquals(0, dummy[i]);
+}
+for (var i = 0; i < dummy2.length; i++) {
+ assertEquals(0, dummy2[i]);
+}
=======================================
--- /branches/bleeding_edge/src/hydrogen-bce.cc Fri Mar 14 10:02:25 2014 UTC
+++ /branches/bleeding_edge/src/hydrogen-bce.cc Mon Mar 17 09:38:01 2014 UTC
@@ -183,7 +183,7 @@
lower_check_ = new_check;
} else {
TightenCheck(lower_check_, new_check);
- UpdateLowerOffsets(upper_check_, upper_offset_);
+ UpdateLowerOffsets(lower_check_, lower_offset_);
}
} else {
// Should never have called CoverCheck() in this case.
--
--
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