On Thu, 10 May 2018, Martin Sebor wrote:
Can you please comment/respond to Jeff's question below and
confirm whether my understanding of the restriction (below)
is correct?
I don't remember it at all, I really should have expanded that comment...
The documentation of nonzero_chars seems to indicate that, unless
full_string_p, it is only a lower bound on the length of the string, so
not suitable for this kind of alias check. I don't know if we also have
easy access to some upper bound.
(I noticed while looking at this pass that it could probably use
POINTER_DIFF_EXPR more)
--
Marc Glisse
