1 files changed, 62 insertions, 0 deletions
diff --git a/deps/v8/test/webkit/dfg-array-pop-side-effects.js b/deps/v8/test/webkit/dfg-array-pop-side-effects.js
new file mode 100644
index 0000000000..8d4d5f319a
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+++ b/deps/v8/test/webkit/dfg-array-pop-side-effects.js
@@ -0,0 +1,62 @@
+// Copyright 2013 the V8 project authors. All rights reserved.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1.  Redistributions of source code must retain the above copyright
+//     notice, this list of conditions and the following disclaimer.
+// 2.  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.
+//
+// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
+
+description(
+"Tests that ArrayPop is known to the DFG to be a side effect."
+);
+
+function foo(a, b) {
+    var result = a.f;
+    result += b.pop();
+    result += a.g;
+    return result;
+}
+
+var ouches = 0;
+for (var i = 0; i < 200; ++i) {
+    var a = {f:1, g:2};
+    var b = [];
+    var expected;
+    if (i < 150) {
+        // Ensure that we always transition the array's structure to one that indicates
+        // that we have array storage.
+        b.__defineGetter__("0", function() {
+            testFailed("Should never get here");
+        });
+        b.length = 0;
+        b[0] = 42;
+        expected = "45";
+    } else {
+        b.__defineGetter__("0", function() {
+            debug("Ouch!");
+            ouches++;
+            delete a.g;
+            a.h = 43;
+            return 5;
+        });
+        expected = "0/0";
+    }
+    shouldBe("foo(a, b)", expected);
+}
+
+shouldBe("ouches", "50");