v8/test/mjsunit/asm/uint32div.js
clemensh be1a5f7551 [asm] Fix lots of invalid asm.js tests
I identified lots of asm.js tests that are actually not valid according
to the spec, hence they execute in default-javascript-mode.
This CL fixes most of them by adding additional type annotations.

The atomic tests are totally non-spec-compliant by expecting a fourth
argument, and infinite-loops-taken expects a function-type parameter,
so I did not fix those.
I also did not fix the regression tests.

R=titzer@chromium.org, bradnelson@chromium.org
BUG=v8:4203

Review-Url: https://codereview.chromium.org/2663243002
Cr-Commit-Position: refs/heads/master@{#43179}
2017-02-14 09:26:52 +00:00

50 lines
1.4 KiB
JavaScript

// Copyright 2014 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.
var stdlib = {};
var foreign = {};
var heap = new ArrayBuffer(64 * 1024);
function Uint32Div(divisor) {
var name = "div_";
name += divisor;
var m = eval(
'function Module(stdlib, foreign, heap) {\n' +
' "use asm";\n' +
' function ' + name + '(dividend) {\n' +
' dividend = dividend | 0;\n' +
' return ((dividend >>> 0) / ' + divisor + ') | 0;\n' +
' }\n' +
' return { f: ' + name + '}\n' +
'}; Module');
return m(stdlib, foreign, heap).f;
}
var divisors = [0, 1, 3, 4, 10, 42, 64, 100, 1024, 2147483647, 4294967295];
for (var i in divisors) {
var divisor = divisors[i];
var div = Uint32Div(divisor);
for (var dividend = 0; dividend < 4294967296; dividend += 3999773) {
assertEquals((dividend / divisor) | 0, div(dividend));
}
}
var div = (function(stdlib, foreign, heap) {
"use asm";
function div(dividend, divisor) {
dividend = dividend | 0;
divisor = divisor | 0;
return (dividend >>> 0) / (divisor >>> 0) | 0;
}
return {div: div};
})(stdlib, foreign, heap).div;
for (var i in divisors) {
var divisor = divisors[i];
for (var dividend = 0; dividend < 4294967296; dividend += 3999773) {
assertEquals((dividend >>> 0) / (divisor >>> 0) | 0,
div(dividend, divisor));
}
}