// Copyright 2018 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 --opt// Test that NumberFloor propagates kIdentifyZeros truncations.(function(){functionfoo(x){returnMath.abs(Math.floor(x*-2));}
assertEquals(2,foo(1));assertEquals(4,foo(2));%OptimizeFunctionOnNextCall(foo);assertEquals(2,foo(1));assertEquals(4,foo(2));assertOptimized(foo);// Now `foo` should stay optimized even if `x * -2` would produce `-0`.assertEquals(0,foo(0));assertOptimized(foo);})();