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<!DOCTYPE HTML>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Binaryen</title>
<style type="text/css">
* { margin:0; padding:0; font-family:inherit; }
body {
margin:2em;
background:white;
color:black;
font:14px monospace;
white-space: pre;
}
p {
white-space: normal;
font-family:sans-serif;
}
</style>
<script type="text/javascript" src="../../bin/binaryen.js"></script>
</head>
<body><script type="text/javascript">
// Separate javascript tag to support <=ES3 browser (the other block uses ES5 and ES6 features)
if (!window.Wasm) {
var e = document.createElement('p');
e.innerHTML = 'No WASM support detected.<br>Please see <a href="https://github.com/kripken/emscripten/wiki/WebAssembly#testing-native-webassembly-in-browsers">https://github.com/kripken/emscripten/wiki/WebAssembly#testing-native-webassembly-in-browsers</a> for instructions on how to enable it.';
document.body.appendChild(e);
}
</script><script type="text/javascript">
if (window.Wasm) {
document.write("See console");
let initStart = Date.now();
Binaryen = Binaryen();
let initDuration = Date.now() - initStart;
console.log('initializing module by calling Binaryen(): '+initDuration+'ms');
let input1 =`
(module
(export "add" $add)
(import $add2 "env" "add" (param f64 f64) (result f64))
(func $add (param $x f64) (param $y f64) (result f64)
(f64.add
(call_import $add2 (get_local $x) (get_local $y))
(f64.add (get_local $x) (get_local $y))
)
)
)`;
let startTime = 0, endTime = 0;
let yieldStartTime = 0, yieldEndTime = 0;
let iterations = 10000000;
let yieldAt = 10000;
let i = 0;
let end = () => {
let duration = endTime - startTime;
console.log('benchmark ended: '+(duration / iterations)+' ms/call ('+duration+' ms)')
}
let runChunk = () => {
yieldEndTime = Date.now();
if (yieldStartTime) {
// subtract time spent yielding
startTime += yieldEndTime - yieldStartTime;
}
for (; i < iterations; ++i) {
if (i != 0 && i % yieldAt == 0) {
break;
}
let buf = Binaryen.compileWast(input1);
}
if (i < iterations) {
endTime = Date.now();
end();
} else {
// yield main thread
yieldStartTime = Date.now();
setTimeout(chunk, 0);
}
}
console.log('benchmark starting')
startTime = Date.now();
runChunk();
}
</script>
</body>
</html>
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