warningMatcher.js

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// Author: Liang Gong

// scan the output file (result.txt) of JITProf and 
// check if those warnings that reports profitable 
// jit-unfriendly code patterns still exist

(function() {
	var jitWarningSignatures = {
		"Octane-Splay": "value:n|left:n|right:n|", // value:n|left:n|right:n|
		"Octane-DeltaBlue": "v1:n|v2:n|direction:n", // v1:n|v2:n|direction:n
		"Octane-Crypto": "octane/crypto.js:54:16:54:27",
		"Octane-Box2D": "_incidentVertex:n|_flip:n",
		"Octane-RayTrace": "accessed property \"initialize\" of object",
		"SS-Crypto-SHA1": "crypto-sha1.js:iid3539",
		"SS-3d-Cube": "sunspider1/3d-cube.js:193:23:193:60",
		"SS-String-Tagcloud": "accessed property \"popularity\" of object",
		"SS-Crypto-MD5": "sunspider1/crypto-md5.js:iid9899",
		"SS-Format-Tofte": "sunspider1/date-format-tofte.js:274:12:274:18",
		"SS-Format-Xparb": "sunspider1/date-format-xparb.js:45",
		"SS-3d-Raytrace": "sunspider1/3d-raytrace.js:300",
		"SS-3d-Morph": "sunspider1/3d-morph.js:43",
		"SS-Access-Fannkuch": "sunspider1/access-fannkuch.js:7"
	};

	var flags = {};

	var fs = require('fs'),
		readline = require('readline');

	// read content from the file
	var rd = readline.createInterface({
		input: fs.createReadStream(process.argv[2]),
		output: process.stdout,
		terminal: false
	});

	// process the content line by line
	rd.on('line', function(line) {
		//console.log(line);
		process_line(line);
	});

	rd.on('close', function () {
		createTable();
	});

	function process_line(line) {
		// console.log(line);
		for (var prop in jitWarningSignatures) {
			if (!jitWarningSignatures.hasOwnProperty(prop)) continue;
			if (line.indexOf(jitWarningSignatures[prop]) >= 0) {
				flags[prop] = true;
				//console.log(line);
			}
		}
	}

	function createTable() {
		console.log(JSON.stringify(flags, 0, 2));
	}
})();