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// Copyright 2010 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Flags: --allow-natives-syntax
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// Regression test for failure to deoptimize properly when the most recent
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// side effect occurred in a comma expression in an effect context.
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// An unoptimizable function, calling it is a side effect.
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function side_effect() { try {} finally {} return "wrong"; }
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// A function to observe the value of its first argument.
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function observe(x, y) { try {} finally {} return x; }
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// If we optimize for x a smi, then x a string will deopt. The side effect
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// immediately before the deopt is in a comma expresion in an effect context
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// (i.e., itself the left subexpression of a comma expression).
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function test(x) { return observe(this, ((0, side_effect()), x + 1)); }
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// Run test enough times to get it optimized.
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for (var i = 0; i < 5; ++i) test(0);
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%OptimizeFunctionOnNextCall(test);
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test(0);
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// Force test to deopt. If it behaves normally, it should return the global
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// object. If the value of the call to side_effect() is lingering after the
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// deopt, it will return the string "wrong".
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assertFalse(test("a") === "wrong");
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