Diffusion Ant (master) Code

ant/examples/jit/type_feedback.js
8755416ca476master

type_feedback.js
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			function addNums(a, b) {
			return a + b;
			}
			for (let i = 0; i < 200; i++) addNums(i, i + 1);
			let r1 = addNums(100, 42);
			console.log('[fb_num_only ADD]', r1, 'ok:', r1 === 142);

			function subNums(a, b) {
			return a - b;
			}
			for (let i = 0; i < 200; i++) subNums(i * 2, i);
			let r2 = subNums(100, 58);
			console.log('[fb_num_only SUB]', r2, 'ok:', r2 === 42);

			function mulNums(a, b) {
			return a * b;
			}
			for (let i = 0; i < 200; i++) mulNums(i, 2);
			let r3 = mulNums(21, 2);
			console.log('[fb_num_only MUL]', r3, 'ok:', r3 === 42);

			function divNums(a, b) {
			return a / b;
			}
			for (let i = 0; i < 200; i++) divNums(i * 3, 3);
			let r4 = divNums(84, 2);
			console.log('[fb_num_only DIV]', r4, 'ok:', r4 === 42);

			function ltNums(a, b) {
			return a < b;
			}
			for (let i = 0; i < 200; i++) ltNums(i, 100);
			console.log('[fb_num_only LT] 3<5:', ltNums(3, 5), 'ok:', ltNums(3, 5) === true);
			console.log('[fb_num_only LT] 5<3:', ltNums(5, 3), 'ok:', ltNums(5, 3) === false);

			function leNums(a, b) {
			return a <= b;
			}
			for (let i = 0; i < 200; i++) leNums(i, 100);
			console.log('[fb_num_only LE] 3<=3:', leNums(3, 3), 'ok:', leNums(3, 3) === true);
			console.log('[fb_num_only LE] 4<=3:', leNums(4, 3), 'ok:', leNums(4, 3) === false);

			function gtNums(a, b) {
			return a > b;
			}
			for (let i = 0; i < 200; i++) gtNums(i, 100);
			console.log('[fb_num_only GT] 5>3:', gtNums(5, 3), 'ok:', gtNums(5, 3) === true);
			console.log('[fb_num_only GT] 3>3:', gtNums(3, 3), 'ok:', gtNums(3, 3) === false);

			function geNums(a, b) {
			return a >= b;
			}
			for (let i = 0; i < 200; i++) geNums(i, 100);
			console.log('[fb_num_only GE] 3>=3:', geNums(3, 3), 'ok:', geNums(3, 3) === true);
			console.log('[fb_num_only GE] 2>=3:', geNums(2, 3), 'ok:', geNums(2, 3) === false);

			function addStrs(a, b) {
			return a + b;
			}
			for (let i = 0; i < 200; i++) addStrs('x', 'y');
			let r5 = addStrs('hello', ' world');
			console.log('[fb_never_num ADD]', r5, 'ok:', r5 === 'hello world');

			function ltStrs(a, b) {
			return a < b;
			}
			for (let i = 0; i < 200; i++) ltStrs('abc', 'def');
			console.log("[fb_never_num LT] 'a'<'b':", ltStrs('a', 'b'), 'ok:', ltStrs('a', 'b') === true);
			console.log("[fb_never_num LT] 'b'<'a':", ltStrs('b', 'a'), 'ok:', ltStrs('b', 'a') === false);
			console.log("[fb_never_num LT] 'z'<'a':", ltStrs('z', 'a'), 'ok:', ltStrs('z', 'a') === false);

			function addMixed(a, b) {
			return a + b;
			}
			for (let i = 0; i < 100; i++) addMixed(i, i);
			for (let i = 0; i < 100; i++) addMixed('a', 'b');
			let r6 = addMixed(20, 22);
			let r7 = addMixed('foo', 'bar');
			console.log('[mixed ADD] num:', r6, 'ok:', r6 === 42);
			console.log('[mixed ADD] str:', r7, 'ok:', r7 === 'foobar');

			function addTrainedNum(a, b) {
			return a + b;
			}
			for (let i = 0; i < 200; i++) addTrainedNum(i, i);

			let r8 = addTrainedNum('bail', 'out');
			console.log('[fb_num_only bailout]', r8, 'ok:', r8 === 'bailout');

			let r9 = addTrainedNum(10, 32);
			console.log('[post-bailout num]', r9, 'ok:', r9 === 42);

			function numericLoop(n) {
			let sum = 0;
			for (let i = 0; i < n; i++) {
			sum = sum + i;
			}
			return sum;
			}
			for (let i = 0; i < 200; i++) numericLoop(10);
			let r10 = numericLoop(10000);
			let expected = (9999 * 10000) / 2;
			console.log('[numeric loop]', r10, 'ok:', r10 === expected);

			function mathChain(a, b, c) {
			let x = a + b;
			let y = x * c;
			let z = y - a;
			return z / b;
			}
			for (let i = 1; i < 200; i++) mathChain(i, i + 1, 2);
			let r11 = mathChain(10, 5, 3);
			console.log('[math chain]', r11, 'ok:', r11 === 7);

			function countAbove(arr, threshold) {
			let count = 0;
			for (let i = 0; i < arr.length; i++) {
			if (arr[i] > threshold) count = count + 1;
			}
			return count;
			}
			let nums = [];
			for (let i = 0; i < 100; i++) nums[i] = i;
			for (let i = 0; i < 200; i++) countAbove(nums, 50);
			let r12 = countAbove(nums, 50);
			console.log('[comparison loop]', r12, 'ok:', r12 === 49);

			function concatLoop(prefix, n) {
			let s = prefix;
			for (let i = 0; i < n; i++) {
			s = s + '.';
			}
			return s;
			}
			for (let i = 0; i < 200; i++) concatLoop('x', 3);
			let r13 = concatLoop('start', 5);
			console.log('[string concat loop]', r13, 'ok:', r13 === 'start.....');

			let allOk =
			r1 === 142 &&
			r2 === 42 &&
			r3 === 42 &&
			r4 === 42 &&
			ltNums(3, 5) === true &&
			ltNums(5, 3) === false &&
			leNums(3, 3) === true &&
			leNums(4, 3) === false &&
			gtNums(5, 3) === true &&
			gtNums(3, 3) === false &&
			geNums(3, 3) === true &&
			geNums(2, 3) === false &&
			r5 === 'hello world' &&
			ltStrs('a', 'b') === true &&
			r6 === 42 &&
			r7 === 'foobar' &&
			r8 === 'bailout' &&
			r9 === 42 &&
			r10 === expected &&
			r11 === 7 &&
			r12 === 49 &&
			r13 === 'start.....';

			console.log('');
			console.log('all type feedback tests passed:', allOk);

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