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comparison: js/src/jit-test/tests/basic/testShiftRightLogical.js
js/src/jit-test/tests/basic/testShiftRightLogical.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:adf84b9c6984 |
|---|---|
| 1 /* Test the proper operation of the logical right shift operator. This is | |
| 2 * especially important on ARM as an explicit mask is required at the native | |
| 3 * instruction level. */ | |
| 4 | |
| 5 load(libdir + 'range.js'); | |
| 6 | |
| 7 function testShiftRightLogical() | |
| 8 { | |
| 9 var r = []; | |
| 10 var i = 0; | |
| 11 var j = 0; | |
| 12 | |
| 13 var shifts = [0,1,7,8,15,16,23,24,31]; | |
| 14 | |
| 15 /* Samples from the simple shift range. */ | |
| 16 for (i = 0; i < shifts.length; i++) | |
| 17 r[j++] = -2147483648 >>> shifts[i]; | |
| 18 | |
| 19 /* Samples outside the normal shift range. */ | |
| 20 for (i = 0; i < shifts.length; i++) | |
| 21 r[j++] = -2147483648 >>> (shifts[i] + 32); | |
| 22 | |
| 23 /* Samples far outside the normal shift range. */ | |
| 24 for (i = 0; i < shifts.length; i++) | |
| 25 r[j++] = -2147483648 >>> (shifts[i] + 224); | |
| 26 for (i = 0; i < shifts.length; i++) | |
| 27 r[j++] = -2147483648 >>> (shifts[i] + 256); | |
| 28 | |
| 29 return r.join(","); | |
| 30 } | |
| 31 /* Note: Arguments to the ">>>" operator are converted to unsigned 32-bit | |
| 32 * integers during evaluation. As a result, -2147483648 >>> 0 evaluates to the | |
| 33 * unsigned interpretation of the same value, which is 2147483648. */ | |
| 34 assertEq(testShiftRightLogical(), | |
| 35 "2147483648,1073741824,16777216,8388608,65536,32768,256,128,1,"+ | |
| 36 "2147483648,1073741824,16777216,8388608,65536,32768,256,128,1,"+ | |
| 37 "2147483648,1073741824,16777216,8388608,65536,32768,256,128,1,"+ | |
| 38 "2147483648,1073741824,16777216,8388608,65536,32768,256,128,1"); |
