js/src/jit-test/tests/ion/ArrayLengthGetPropertyIC.js@6474c204b198 (annotated)
js/src/jit-test/tests/ion/ArrayLengthGetPropertyIC.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 intLength (a, l) { |
| michael@0 | 2 | var res = 0; |
| michael@0 | 3 | for (var i = 0; i < l; i++) |
| michael@0 | 4 | res += a.length; |
| michael@0 | 5 | return res / l; |
| michael@0 | 6 | } |
| michael@0 | 7 | |
| michael@0 | 8 | function valueLength (a, l) { |
| michael@0 | 9 | var res = 0; |
| michael@0 | 10 | for (var i = 0; i < l; i++) |
| michael@0 | 11 | res += a.length; |
| michael@0 | 12 | return res / l; |
| michael@0 | 13 | } |
| michael@0 | 14 | |
| michael@0 | 15 | var denseArray = [0,1,2,3,4,5,6,7,8,9]; |
| michael@0 | 16 | var typedArray = new Uint8Array(10); |
| michael@0 | 17 | var hugeArray = new Array(4294967295); |
| michael@0 | 18 | var fakeArray1 = { length: 10 }; |
| michael@0 | 19 | var fakeArray2 = { length: 10.5 }; |
| michael@0 | 20 | |
| michael@0 | 21 | // Check the interpreter result and play with TI type objects. |
| michael@0 | 22 | assertEq(intLength(denseArray, 10), 10); |
| michael@0 | 23 | assertEq(intLength(typedArray, 10), 10); |
| michael@0 | 24 | // assertEq(intLength(fakeArray1, 10), 10); |
| michael@0 | 25 | |
| michael@0 | 26 | assertEq(valueLength(denseArray, 10), 10); |
| michael@0 | 27 | assertEq(valueLength(typedArray, 10), 10); |
| michael@0 | 28 | assertEq(valueLength(hugeArray , 10), 4294967295); |
| michael@0 | 29 | assertEq(valueLength(fakeArray2, 10), 10.5); |
| michael@0 | 30 | |
| michael@0 | 31 | // Heat up to compile (either JM / Ion) |
| michael@0 | 32 | assertEq(intLength(denseArray, 100), 10); |
| michael@0 | 33 | assertEq(valueLength(denseArray, 100), 10); |
| michael@0 | 34 | |
| michael@0 | 35 | // No bailout should occur during any of the following checks: |
| michael@0 | 36 | |
| michael@0 | 37 | // Check get-property length IC with dense array. |
| michael@0 | 38 | assertEq(intLength(denseArray, 1), 10); |
| michael@0 | 39 | assertEq(valueLength(denseArray, 1), 10); |
| michael@0 | 40 | |
| michael@0 | 41 | // Check get-property length IC with typed array. |
| michael@0 | 42 | assertEq(intLength(typedArray, 1), 10); |
| michael@0 | 43 | assertEq(valueLength(typedArray, 1), 10); |
| michael@0 | 44 | |
| michael@0 | 45 | // Check length which do not fit on non-double value. |
| michael@0 | 46 | assertEq(valueLength(hugeArray, 1), 4294967295); |
| michael@0 | 47 | |
| michael@0 | 48 | // Check object length property. |
| michael@0 | 49 | assertEq(intLength(fakeArray1, 1), 10); |
| michael@0 | 50 | assertEq(valueLength(fakeArray2, 1), 10.5); |
| michael@0 | 51 | |
| michael@0 | 52 | // Cause invalidation of intLength by returning a double. |
| michael@0 | 53 | assertEq(intLength(hugeArray, 1), 4294967295); |
| michael@0 | 54 | assertEq(intLength(fakeArray2, 1), 10.5); |
