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// 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
// -----------------------------------------------------------------------------
function SmiTaggingCanOverflow(x) {
x = x | 0;
if (x == 0) return;
return x;
};
%PrepareFunctionForOptimization(SmiTaggingCanOverflow);
SmiTaggingCanOverflow(2147483647);
SmiTaggingCanOverflow(2147483647);
%OptimizeFunctionOnNextCall(SmiTaggingCanOverflow);
assertEquals(2147483647, SmiTaggingCanOverflow(2147483647));
// -----------------------------------------------------------------------------
function ModILeftCanBeNegative() {
var x = 0;
for (var i = -1; i < 0; ++i) x = i % 2;
return x;
};
%PrepareFunctionForOptimization(ModILeftCanBeNegative);
ModILeftCanBeNegative();
%OptimizeFunctionOnNextCall(ModILeftCanBeNegative);
assertEquals(-1, ModILeftCanBeNegative());
// -----------------------------------------------------------------------------
function ModIRightCanBeZero() {
var x = 0;
for (var i = -1; i <= 0; ++i) x = 2 % i | 0;
return x;
};
%PrepareFunctionForOptimization(ModIRightCanBeZero);
ModIRightCanBeZero();
%OptimizeFunctionOnNextCall(ModIRightCanBeZero);
ModIRightCanBeZero();
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