radeonsi/nir: fix shader ballot return value bitsize

Fixes cts test:
KHR-GL46.shader_ballot_tests.ShaderBallotFunctionBallot

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_shader_nir.c b/src/gallium/drivers/radeonsi/si_shader_nir.c
index ba4a66fabbc7528ce41055e955da69910e1b81d3..0a09963e9182a936969e693bdb1f63af787e6ec0 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_shader_nir.c
+++ b/src/gallium/drivers/radeonsi/si_shader_nir.c
@@ -630,7 +630,7 @@ si_lower_nir(struct si_shader_selector* sel)
 
        const nir_lower_subgroups_options subgroups_options = {
                .subgroup_size = 64,
-               .ballot_bit_size = 32,
+               .ballot_bit_size = 64,
                .lower_to_scalar = true,
                .lower_subgroup_masks = true,
                .lower_vote_trivial = false,