radeonsi/gfx9: add VS prolog support for merged ES-GS

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 8c43244..9d7ab7b 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -7363,6 +7363,8 @@ static void si_get_vs_prolog_key(const struct tgsi_shader_info *info,
 
        if (shader_out->selector->type == PIPE_SHADER_TESS_CTRL)
                key->vs_prolog.num_merged_next_stage_vgprs = 2;
+       else if (shader_out->selector->type == PIPE_SHADER_GEOMETRY)
+               key->vs_prolog.num_merged_next_stage_vgprs = 5;
 
        /* Set the instanceID flag. */
        for (unsigned i = 0; i < info->num_inputs; i++)