Hi,
The PR shows two different cases where try_promote_writeback produces an
RTL pattern which isn't recognized. Currently this leads to an ICE, as
we assert recog success, but I think it's better just to back out of the
changes gracefully if recog fails (as we do in the main fuse_pair case).
In
Alex Coplan writes:
> Hi,
>
> The PR shows two different cases where try_promote_writeback produces an
> RTL pattern which isn't recognized. Currently this leads to an ICE, as
> we assert recog success, but I think it's better just to back out of the
> changes gracefully if recog fails (as we do