On 10/31/2015 06:58 PM, Dominik Vogt wrote: > But what the heck is this "exact power of 2" limitation good for > in the first place? Why is a stack size of 1, 2 or > 36028797018963968 valid, but not 800? Shouldn't the stack size > (and the size of the stack guard) just be multiples of the stack > slot size?
That's because of the way we implement the stack check. We use test under mask to check for certain bits instead of doing the full math and compare. -Andreas-
