radeonsi: wire up TGSI_SEMANTIC_BASEINSTANCE

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 64c367e..2c00f56 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -1663,6 +1663,11 @@ static void declare_system_value(
                                     SI_PARAM_BASE_VERTEX);
                break;
 
+       case TGSI_SEMANTIC_BASEINSTANCE:
+               value = LLVMGetParam(radeon_bld->main_fn,
+                                    SI_PARAM_START_INSTANCE);
+               break;
+
        case TGSI_SEMANTIC_INVOCATIONID:
                if (ctx->type == PIPE_SHADER_TESS_CTRL)
                        value = unpack_param(ctx, SI_PARAM_REL_IDS, 8, 5);