js/src/jit-test/tests/jaeger/undoAdd.js@ac0c01689b40
js/src/jit-test/tests/jaeger/undoAdd.js
Thu, 15 Jan 2015 15:59:08 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:59:08 +0100
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
- permissions
- -rw-r--r--
Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
2 /* Test undoing addition in overflow paths when under heavy register pressure. */
4 function add1(x, y, a, b, res) { var nres = res + 0; var z = (x + a) + (y + b); assertEq(z, nres); }
5 function add2(x, y, a, b, res) { var nres = res + 0; var z = (x + a) + (y + b); assertEq(z, nres); }
6 function add3(x, y, a, b, res) { var nres = res + 0; var z = (x + a) + (y + b); assertEq(z, nres); }
7 add1(0x7ffffff0, 100, 0, 0, 2147483732);
8 add2(-1000, -0x80000000, 0, 0, -2147484648);
9 add3(-0x80000000, -1000, 0, 0, -2147484648);
11 function cadd1(x, a, b, res) {
12 var nres = res + 0;
13 var nb = b + 0;
14 var z = (x + a) + 1000;
15 assertEq(z, nres + nb);
16 }
17 cadd1(0x7ffffff0, 0, 0, 2147484632);
19 function cadd2(x, a, b, res) {
20 var nres = res + 0;
21 var nb = b + 0;
22 var z = (x + a) + (-0x80000000);
23 assertEq(z, nres + nb);
24 }
25 cadd2(-1000, 0, 0, -2147484648);
