radeonsi/nir: disable vertex_id_zero_based lowering

The lowering is incompatible with how the radeonsi backend works.

Fixes piglit test:
./bin/arb_shader_draw_parameters-basevertex vertexid-zerobased -auto

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_get.c b/src/gallium/drivers/radeonsi/si_get.c
index 998ef8d268b45146b72cff34b5fb595ec1c9bf1b..e9657602f371dc311be922ba00603e4d1be08ffa 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_get.c
+++ b/src/gallium/drivers/radeonsi/si_get.c
@@ -492,7 +492,6 @@ static int si_get_shader_param(struct pipe_screen* pscreen,
 }
 
 static const struct nir_shader_compiler_options nir_options = {
-       .vertex_id_zero_based = true,
        .lower_scmp = true,
        .lower_flrp32 = true,
        .lower_flrp64 = true,