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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=944821
-->
<head>
<meta charset="utf-8">
<title>asm.js browser tests</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=944821">asm.js browser tests</a>
<p id="display"></p>
<div id="content" style="display: none"></div>
<pre id="test"></pre>
<script>
var jsFuns = SpecialPowers.Cu.getJSTestingFunctions();
var assertCacheHit = false;
// generate four slightly different big asm.js modules and compile them async
// so that we can hit the asm.js cache.
var code = "function f() { 'use asm';\n";
for (var i = 0; i < 5000; i++)
code += "function g" + i + "() { return " + i + "}\n";
ok(code.length > 100000, "code is long enough to definitely hit the cache");
const N = 4;
var codes = [];
for (var i = 0; i < N; i++) {
var code2 = code;
code2 += "return g" + i + ";\n";
code2 += "}\n";
code2 += "ok(jsFuns.isAsmJSModule(f), 'f is an asm.js module')\n";
code2 += "if (assertCacheHit) ok(jsFuns.isAsmJSModuleLoadedFromCache(f), 'cache hit');\n";
code2 += "var gX = f();\n";
code2 += "ok(jsFuns.isAsmJSFunction(gX), 'gX is an asm.js function')\n";
code2 += "ok(gX() === " + i + ", 'gX returns the correct result')\n";
code2 += "finishedEvalAsync();\n";
codes.push(code2);
}
function evalAsync(code) {
var blob = new Blob([code], {type:"application/javascript"});
var script = document.createElement('script');
script.src = URL.createObjectURL(blob);
document.body.appendChild(script);
}
var finishedCount = 0;
function finishedEvalAsync() {
finishedCount++;
if (finishedCount < 1 || finishedCount > 2*N) {
throw "Huh?!";
} else if (finishedCount == N) {
assertCacheHit = true;
for (var i = 0; i < N; i++)
evalAsync(codes[i]);
} else if (finishedCount == 2*N) {
SimpleTest.finish();
}
}
function runTest() {
for (var i = 0; i < N; i++)
evalAsync(codes[i]);
SimpleTest.waitForExplicitFinish();
}
if (!jsFuns.isAsmJSCompilationAvailable()) {
ok(true, "isAsmJSCompilationAvailable is false, skipping this test!");
} else {
runTest();
}
</script>
</body>
</html>
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