When barriers are used in invalid shaders with non-uniform control flow
we might get a hang. Forcing 32-wide group can help by making it more
probable that barrier instruction is executed by at least one channel
in each thread, and thus hang will be avoided. This shouldn't affect
Xe2+, where active-thread-only barriers are used anyway.
Cc: mesa-stable
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/11497
Signed-off-by: Sviatoslav Peleshko <sviatoslav.peleshko@globallogic.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30581>
(cherry picked from commit 7e52b67801)
6d80687b24