blob: 2daca73bbf2fab15ac2d418e3caa7697d9219adc [file] [log] [blame]
// Copyright 2016 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 StoreHoleBitPattern() {
function g(src, dst, i) {
dst[i] = src[i];
}
var b = new ArrayBuffer(16);
var i32 = new Int32Array(b);
i32[0] = 0xFFF7FFFF;
i32[1] = 0xFFF7FFFF;
i32[3] = 0xFFF7FFFF;
i32[4] = 0xFFF7FFFF;
var f64 = new Float64Array(b);
var a = [,0.1];
%PrepareFunctionForOptimization(g);
g(f64, a, 1);
g(f64, a, 1);
%OptimizeFunctionOnNextCall(g);
g(f64, a, 0);
assertTrue(Number.isNaN(a[0]));
})();
(function ConvertHoleToNumberAndStore() {
function g(a, i) {
var x = a[i];
a[i] = +x;
}
var a=[,0.1];
%PrepareFunctionForOptimization(g);
g(a, 1);
g(a, 1);
%OptimizeFunctionOnNextCall(g);
g(a, 0);
assertTrue(Number.isNaN(a[0]));
})();