On 9/2/23 18:40, Andrew Pinski via Gcc wrote:
Hi,
I was trying to use the ranger from inside of cfgexpand but since at
this point we have a mix of RTL and gimple basic blocks, things fall
over very fast.
First does it make sense to use the ranger from expand or should we
change the gimple IR in isel instead if we have a better way of doing
an expansion.
In this case we have MIN_EXPR<a, 1> where a has a range of [0,INF] and
I want to expand it as (a != 0) to get better code.
I very much want to get to a point where we can use ranges during
expansion, but we're probably going to be limited to global ranges since
as you note, we're in a mixed IL state and ranger is probably going to
be confused as hell.
Jeff
