simd_ballot/quad_any/quad_all (and probably simd_any/simd_all) appear to
generally be broken within conditional blocks, not just with simd_is_first.
Reviewed-by: Aitor Camacho <aitor@lunarg.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41186>
GPU capture bugs if heap sizes are not aligned to at least 16K. Ensuring that
they are is not expected to impact memory usage since it seems the actual
internal memory allocation is already aligned to 16K, the issue is only with
how the heap reports its size versus the allocation size that capture uses.
Reviewed-by: Aitor Camacho <aitor@lunarg.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41218>
If a loop has only one break case, Metal appears to re-order it to after
the loop ends, which goes against the expected behavior for reconvergence.
Work around this by putting the break statement into a trivial, always-true
runtime conditional, when maximal reconvergence is requested.
Fixes dEQP-VK.reconvergence.maximal.compute.nesting*
Reviewed-by: Arcady Goldmints-Orlov <arcady@lunarg.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41229>
Metal does not seem to respect memory coherency for threads. Workaround 6
enforces device coherency for global loads/stores even if it should not
be needed.
Reviewed-by: Arcady Goldmints-Orlov <arcady@lunarg.com>
Signed-off-by: Aitor Camacho <aitor@lunarg.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38847>
Metal will prematurely discard fragments with side effects even if those
side effects happen before the discard. Work around this by making said
discards "optional".
Reviewed-by: Arcady Goldmints-Orlov <arcady@lunarg.com>
Signed-off-by: Aitor Camacho <aitor@lunarg.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38741>
When discarding a fragment in Metal, it will not be demoted to helper. At
least for Apple Silicon M1 and M2. Call nir_lower_is_helper_invocation to
work around this.
Reviewed-by: Arcady Goldmints-Orlov <arcady@lunarg.com>
Signed-off-by: Aitor Camacho <aitor@lunarg.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38590>
Adds build instructions and workarounds documentation.
Workarounds documentation only has the biggest offenders and
there are probably way more in code that need yet to be
documented.
Reviewed-by: Arcady Goldmints-Orlov <arcady@lunarg.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38232>
