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Unified Diff: test/mjsunit/regress/regress-1582.js

Issue 7553006: Check for phi-uses of arguments object before eliminating dead phi's. (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 9 years, 5 months ago
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Index: test/mjsunit/regress/regress-1582.js
===================================================================
--- test/mjsunit/regress/regress-1582.js (revision 0)
+++ test/mjsunit/regress/regress-1582.js (revision 0)
@@ -0,0 +1,47 @@
+// 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
+
+function f(restIsArray, rest) {
+ var arr;
+ if (typeof rest === "object" && (rest instanceof Array)) {
+ arr = rest;
+ } else {
+ arr = arguments;
+ }
+ var i = arr.length;
+ while (--i >= 0) arr[i];
+ var arrIsArguments = (arr[1] !== rest);
+ assertEquals(restIsArray, arrIsArguments);
+}
+
+f(false, 'b', 'c');
+f(false, 'b', 'c');
+f(false, 'b', 'c');
+%OptimizeFunctionOnNextCall(f);
+f(true, ['b', 'c']);
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