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intel/compiler: fix array & struct IO lowering in mesh shaders

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We really need offsets to be in dwords, not in vec4s.

The bug manifests as random failure of func.mesh.clipdistance.5 crucible
test, where stores to gl_MeshVerticesNV[x].gl_ClipDistance[4+n] actually write to
gl_MeshVerticesNV[x].gl_ClipDistance[1+n].

Fixes: 1f438eb033 ("intel/compiler: Implement Mesh Output")
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14997>
This commit is contained in:
Marcin Ślusarz 2022-02-11 17:28:35 +01:00 • committed by Marge Bot
parent e6cfd1ed64
commit b6557b80a5
1 changed files with 1 additions and 1 deletions
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2
src/intel/compiler/brw_mesh.cpp
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@ -453,7 +453,7 @@ brw_nir_lower_mue_outputs(nir_shader *nir, const struct brw_mue_map *map)
var->data.driver_location = map->start_dw[location];
}
nir_lower_io(nir, nir_var_shader_out, type_size_vec4,
nir_lower_io(nir, nir_var_shader_out, type_size_scalar_dwords,
nir_lower_io_lower_64bit_to_32);
}