nv50/ir/nir: rework CFG handling

Remove all convergency handling as it was broken and get the code to be a
bit closer to TGSI. Also removes pointless asserts.

Signed-off-by: Karol Herbst <kherbst@redhat.com>
Tested-by: Ben Skeggs <bskeggs@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5512>
1 file changed