aco: don't fix break condition for break+discard to exec

This would move the old exec mask back into exec. This also fixes the
live_out_exec.

Issue found in dEQP-VK.graphicsfuzz.cosh-return-inf-unused

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Cc: 20.2 <mesa-stable>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6212>
1 file changed