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/* Test the proper operation of the arithmetic right shift operator. This is
* especially important on ARM as an explicit mask is required at the native
* instruction level. */
load(libdir + 'range.js');
/* Test different combinations of literals/variables. */
var s = 4;
var t = 100;
assertEq(42 >> s, 2);
assertEq(s >> 1, 2);
assertEq(23 >> 3, 2);
assertEq(t >> s, 6);
function testShiftRightArithmetic()
{
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(",");
}
assertEq(testShiftRightArithmetic(),
"-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");
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