node/deps/v8/test/mjsunit/compiler/uint8-clamped-array.js
Ujjwal Sharma f579e11940 deps: update V8 to 7.4.288.13
PR-URL: https://github.com/nodejs/node/pull/26685
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
2019-03-28 16:36:18 -04:00

78 lines
1.5 KiB
JavaScript

// 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 --opt
(function() {
function foo(a, v) {
a[0] = v & 0xff;
}
%PrepareFunctionForOptimization(foo);
var a = new Uint8ClampedArray(4);
foo(a, 1);
foo(a, 2);
%OptimizeFunctionOnNextCall(foo);
foo(a, 256);
assertOptimized(foo);
assertEquals(0, a[0]);
})();
(function() {
function foo(a, v) {
a[0] = v >>> 0;
}
%PrepareFunctionForOptimization(foo);
var a = new Uint8ClampedArray(4);
foo(a, 1);
foo(a, 2);
%OptimizeFunctionOnNextCall(foo);
foo(a, 256);
assertOptimized(foo);
assertEquals(255, a[0]);
})();
(function() {
function foo(a, v) {
a[0] = v | 0;
}
%PrepareFunctionForOptimization(foo);
var a = new Uint8ClampedArray(4);
foo(a, 1);
foo(a, 2);
%OptimizeFunctionOnNextCall(foo);
foo(a, 256);
assertOptimized(foo);
assertEquals(255, a[0]);
foo(a, -1);
assertOptimized(foo);
assertEquals(0, a[0]);
})();
(function() {
function foo(a, v) {
a[0] = v;
}
%PrepareFunctionForOptimization(foo);
var a = new Uint8ClampedArray(4);
foo(a, 1);
foo(a, 2);
%OptimizeFunctionOnNextCall(foo);
foo(a, Infinity);
assertOptimized(foo);
assertEquals(255, a[0]);
foo(a, -Infinity);
assertOptimized(foo);
assertEquals(0, a[0]);
foo(a, 0.5);
assertOptimized(foo);
assertEquals(0, a[0]);
foo(a, 1.5);
assertOptimized(foo);
assertEquals(2, a[0]);
})();