ir3: keep inputs at start block when creating empty preamble
It is expected that inputs and prefetches are always in the first block.
However, ir3_create_empty_preamble would create blocks before the first
one, leaving inputs after the preamble. This causes issues with
(probably among others) spilling/RA where precolored inputs could
illegally reuse the spill base register.
Fixes RA validation failures on a7xx for
dEQP-VK.ray_query.multiple_ray_queries.vertex_shader
Signed-off-by: Job Noorman <jnoorman@igalia.com>
Fixes: f3026b3d3e6 ("ir3: add some preamble helpers")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33977>
1 file changed
