radeonsi/gfx11: add assert in legacy vs path

Only ngg should be used.

src/amd/common/ac_shader_util.c

@@ -89,6 +89,8 @@ uint32_t ac_vgt_gs_mode(unsigned gs_max_vert_out, enum chip_class chip_class)
 {
    unsigned cut_mode;
 
+   assert (chip_class < GFX11);
+
    if (gs_max_vert_out <= 128) {
       cut_mode = V_028A40_GS_CUT_128;
    } else if (gs_max_vert_out <= 256) {

src/gallium/drivers/radeonsi/si_shader_llvm_gs.c

@@ -356,6 +356,9 @@ void si_preload_esgs_ring(struct si_shader_context *ctx)
 
 void si_preload_gs_rings(struct si_shader_context *ctx)
 {
+   if (ctx->ac.chip_class >= GFX11)
+      return;
+
    const struct si_shader_selector *sel = ctx->shader->selector;
    LLVMBuilderRef builder = ctx->ac.builder;
    LLVMValueRef offset = LLVMConstInt(ctx->ac.i32, SI_RING_GSVS, 0);

src/gallium/drivers/radeonsi/si_state_draw.cpp

@@ -1245,6 +1245,7 @@ static void gfx10_emit_ge_cntl(struct si_context *sctx, unsigned num_patches)
    } else {
       unsigned primgroup_size;
       unsigned vertgroup_size;
+      assert(GFX_VERSION < GFX11);
 
       if (HAS_TESS) {
          primgroup_size = num_patches; /* must be a multiple of NUM_PATCHES */

src/gallium/drivers/radeonsi/si_state_shaders.cpp

@@ -1619,6 +1619,8 @@ static void si_shader_vs(struct si_screen *sscreen, struct si_shader *shader,
                           info->base.vs.window_space_position : 0;
    bool enable_prim_id = shader->key.ge.mono.u.vs_export_prim_id || info->uses_primid;
 
+   assert(sscreen->info.chip_class < GFX11);
+
    pm4 = si_get_shader_pm4_state(shader);
    if (!pm4)
       return;
@@ -3676,6 +3678,8 @@ static void si_emit_vgt_flush(struct radeon_cmdbuf *cs)
 /* Initialize state related to ESGS / GSVS ring buffers */
 bool si_update_gs_ring_buffers(struct si_context *sctx)
 {
+   assert(sctx->chip_class < GFX11);
+
    struct si_shader_selector *es =
       sctx->shader.tes.cso ? sctx->shader.tes.cso : sctx->shader.vs.cso;
    struct si_shader_selector *gs = sctx->shader.gs.cso;