tree dd8bd7f0cb8f42a7ed974f97fe888492268d4f4f
parent fe8c524c826dc1014e51671d04cc609335095887
author Marcin Ślusarz <marcin.slusarz@intel.com> 1605025935 +0100
committer Dylan Baker <dylan.c.baker@intel.com> 1605290739 -0800

nir: handle float atomics in copy propagation pass

Without this patch, copy propagation pass can optimize out
buffer loads out of compare & swap loop, which then leads
to infinite loop.

Triggered by a change to atomicCompSwap float test in piglit.

Fixes: 8424cd8fbd1 ("nir: Account for atomics in copy propagation.")
Suggested-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7538>
(cherry picked from commit 6e6dab479907fe79ed24e69be841dd3ec7bd479e)