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/* Test the proper operation of the logical right shift operator. This is
* especially important on ARM as an explicit mask is required at the native
* instruction level. */
function testShiftRightLogical()
{
var r = [];
var i = 0;
var j = 0;
var shifts = [0,1,7,8,15,16,23,24,31];
/* Samples from the simple shift range. */
for (i = 0; i < shifts.length; i++)
r[j++] = -2147483648 >>> shifts[i];
/* Samples outside the normal shift range. */
for (i = 0; i < shifts.length; i++)
r[j++] = -2147483648 >>> (shifts[i] + 32);
/* Samples far outside the normal shift range. */
for (i = 0; i < shifts.length; i++)
r[j++] = -2147483648 >>> (shifts[i] + 224);
for (i = 0; i < shifts.length; i++)
r[j++] = -2147483648 >>> (shifts[i] + 256);
return r.join(",");
}
/* Note: Arguments to the ">>>" operator are converted to unsigned 32-bit
* integers during evaluation. As a result, -2147483648 >>> 0 evaluates to the
* unsigned interpretation of the same value, which is 2147483648. */
assertEq(testShiftRightLogical(),
"2147483648,1073741824,16777216,8388608,65536,32768,256,128,1,"+
"2147483648,1073741824,16777216,8388608,65536,32768,256,128,1,"+
"2147483648,1073741824,16777216,8388608,65536,32768,256,128,1,"+
"2147483648,1073741824,16777216,8388608,65536,32768,256,128,1");