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comparison: js/src/jit-test/tests/ion/range-analysis.js
js/src/jit-test/tests/ion/range-analysis.js
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| -1:000000000000 | 0:01fc6e4c64c4 |
|---|---|
| 1 // |jit-test| | |
| 2 | |
| 3 // Only fails with Ion. | |
| 4 function add_xors_1() { | |
| 5 var res = 0; | |
| 6 var step = 4; | |
| 7 for (var i = 0x7fffffff | 0; i >= (1 << step); i -= (i >> step)) { | |
| 8 var x = i ^ (i << 1); | |
| 9 res += (((x + x) + res + res) | 0); | |
| 10 } | |
| 11 return res; | |
| 12 } | |
| 13 | |
| 14 var r1 = add_xors_1(); | |
| 15 for (var i = 0; i < 100; i++) { | |
| 16 var r2 = add_xors_1(); | |
| 17 assertEq(r2, r1); | |
| 18 } | |
| 19 | |
| 20 // Only fails with JM | |
| 21 function add_xors_2() { | |
| 22 var res = 0; | |
| 23 var step = 4; | |
| 24 for (var i = 0x7fffffff | 0; i >= (1 << step); i -= (i >> step)) { | |
| 25 var x = i ^ (i << 1); | |
| 26 res += ((x + x) + res + res) | 0; | |
| 27 } | |
| 28 return res; | |
| 29 } | |
| 30 | |
| 31 var r1 = add_xors_2(); | |
| 32 for (var i = 0; i < 100; i++) { | |
| 33 var r2 = add_xors_2(); | |
| 34 assertEq(r1, r2); | |
| 35 } |
