// 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]; 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]; g(a, 1); g(a, 1); %OptimizeFunctionOnNextCall(g); g(a, 0); assertTrue(Number.isNaN(a[0])); })();