v8/test/mjsunit/compiler/regress-shift-left.js

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// Copyright 2015 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 ShiftLeftWithDeoptUsage() {
function g() {}
function f() {
var tmp = 1264475713;
var tmp1 = tmp - (-913041544);
g();
return 1 << tmp1;
}
%OptimizeFunctionOnNextCall(f);
assertEquals(512, f());
})();
(function ShiftLeftWithCallUsage() {
var f = (function() {
"use asm"
// This is not a valid asm.js, we use the "use asm" here to
// trigger Turbofan without deoptimization support.
function g(x) { return x; }
function f() {
var tmp = 1264475713;
var tmp1 = tmp - (-913041544);
return g(1 << tmp1, tmp1);
}
return f;
})();
%OptimizeFunctionOnNextCall(f);
assertEquals(512, f());
})();