918fe04351
PR-URL: https://github.com/nodejs/node/pull/58070 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
23 lines
903 B
JavaScript
23 lines
903 B
JavaScript
// Copyright 2024 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 --turbolev --turbofan
|
|
|
|
function truncate_number_to_int32(d, b) {
|
|
let v1 = d ^ 42; // Checked NumberOrOddball truncation
|
|
let p1 = b ? 4.26 : undefined;
|
|
let v2 = p1 | 11; // (unchecked) NumberOrOddball truncation
|
|
let p2 = b ? 3.35 : 4.59;
|
|
let v3 = p2 & 255; // (unchecked) Float64 truncation
|
|
return v1 + v2 + v3;
|
|
}
|
|
|
|
%PrepareFunctionForOptimization(truncate_number_to_int32);
|
|
assertEquals(61, truncate_number_to_int32(1.253, 1));
|
|
assertEquals(58, truncate_number_to_int32(1.253, 0));
|
|
%OptimizeFunctionOnNextCall(truncate_number_to_int32);
|
|
assertEquals(61, truncate_number_to_int32(1.253, 1));
|
|
assertEquals(58, truncate_number_to_int32(1.253, 0));
|
|
assertOptimized(truncate_number_to_int32);
|