/* 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. */ load(libdir + 'range.js'); 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");