The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/jit-test/tests/ion/bug936740.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,26 @@
     1.4 +function ceil(x) {
     1.5 +    return Math.ceil(x);
     1.6 +}
     1.7 +
     1.8 +// Compiled as Ceil(double -> int32)
     1.9 +assertEq(ceil(1.1), 2);
    1.10 +assertEq(ceil(-1.1), -1);
    1.11 +assertEq(ceil(-3), -3);
    1.12 +
    1.13 +// As we use the identity Math.ceil(x) == -Math.floor(-x) and Floor(-0) bails out,
    1.14 +// this should bail out.
    1.15 +assertEq(ceil(0), 0);
    1.16 +assertEq(ceil(0), 0);
    1.17 +
    1.18 +// Reuses the Ceil(double -> int32) path
    1.19 +assertEq(ceil(1.1), 2);
    1.20 +assertEq(ceil(-1.1), -1);
    1.21 +assertEq(ceil(-3), -3);
    1.22 +
    1.23 +// Bails out and then compiles as Ceil(double -> double)
    1.24 +assertEq(ceil(-0), -0);
    1.25 +assertEq(ceil(Math.pow(2, 32)), Math.pow(2, 32));
    1.26 +assertEq(ceil(-0), -0);
    1.27 +
    1.28 +// Still works but not inlined as double -> int32 (it still uses double -> double)
    1.29 +assertEq(ceil(1.5), 2);