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js/src/jit-test/tests/ion/truncate.js@6474c204b198 (annotated)

js/src/jit-test/tests/ion/truncate.js

Wed, 31 Dec 2014 06:09:35 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:09:35 +0100

changeset 0

6474c204b198

permissions

-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0	1	function f() {
michael@0	2	var x = Math.pow(2, 31); // take it as argument if constant propagation comes in you way.
michael@0	3	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 32
michael@0	4	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 33
michael@0	5	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 34
michael@0	6	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 35
michael@0	7	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 36
michael@0	8	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 37
michael@0	9	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 38
michael@0	10	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 39
michael@0	11	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 40
michael@0	12	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 41
michael@0	13	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 42
michael@0	14	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 43
michael@0	15	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 44
michael@0	16	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 45
michael@0	17	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 46
michael@0	18	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 47
michael@0	19	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 48
michael@0	20	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 49
michael@0	21	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 50
michael@0	22	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 51
michael@0	23	x = x + x; assertEq((x + 1) | 0, 1); // 2 ** 52
michael@0	24	x = x + x; assertEq((x + 1) | 0, 0); // 2 ** 53
michael@0	25	}
michael@0	26
michael@0	27	for (var i = 0; i <= 100000; i++)
michael@0	28	f();