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// 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: --allow-natives-syntax
// Test materialization of the arguments object when deoptimizing a
// strict mode closure after modifying an argument.
(function () {
var forceDeopt = 0;
function inner(x) {
"use strict";
x = 2;
// Do not remove this %DebugPrint as it makes sure the deopt happens
// after the assignment and is not hoisted above the assignment.
%DebugPrint(arguments[0]);
forceDeopt + 1;
return arguments[0];
}
assertEquals(1, inner(1));
assertEquals(1, inner(1));
%OptimizeFunctionOnNextCall(inner);
assertEquals(1, inner(1));
forceDeopt = "not a number";
assertEquals(1, inner(1));
})();
// Test materialization of the arguments object when deoptimizing an
// inlined strict mode closure after modifying an argument.
(function () {
var forceDeopt = 0;
function inner(x) {
"use strict";
x = 2;
// Do not remove this %DebugPrint as it makes sure the deopt happens
// after the assignment and is not hoisted above the assignment.
%DebugPrint(arguments[0]);
forceDeopt + 1;
return arguments[0];
}
function outer(x) {
return inner(x);
}
assertEquals(1, outer(1));
assertEquals(1, outer(1));
%OptimizeFunctionOnNextCall(outer);
assertEquals(1, outer(1));
forceDeopt = "not a number";
assertEquals(1, outer(1));
})();
// Test materialization of the multiple arguments objects when
// deoptimizing several inlined closure after modifying an argument.
(function () {
var forceDeopt = 0;
function inner(x,y,z) {
"use strict";
x = 3;
// Do not remove this %DebugPrint as it makes sure the deopt happens
// after the assignment and is not hoisted above the assignment.
%DebugPrint(arguments[0]);
forceDeopt + 1;
return arguments[0];
}
function middle(x) {
"use strict";
x = 2;
return inner(10*x, 20*x, 30*x) + arguments[0];
}
function outer(x) {
return middle(x);
}
assertEquals(21, outer(1));
assertEquals(21, outer(1));
%OptimizeFunctionOnNextCall(outer);
assertEquals(21, outer(1));
forceDeopt = "not a number";
assertEquals(21, outer(1));
})();
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