radeonsi: use VS prolog and epilog for monolithic shaders

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 226c335..7272313 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -71,6 +71,10 @@ static void si_llvm_emit_barrier(const struct lp_build_tgsi_action *action,
 static void si_dump_shader_key(unsigned shader, union si_shader_key *key,
                               FILE *f);
 
+static void si_build_vs_prolog_function(struct si_shader_context *ctx,
+                                       union si_shader_part_key *key);
+static void si_build_vs_epilog_function(struct si_shader_context *ctx,
+                                       union si_shader_part_key *key);
 static void si_build_ps_prolog_function(struct si_shader_context *ctx,
                                        union si_shader_part_key *key);
 static void si_build_ps_epilog_function(struct si_shader_context *ctx,
@@ -7174,7 +7178,8 @@ int si_compile_tgsi_shader(struct si_screen *sscreen,
        ctx.no_epilog = is_monolithic;
        ctx.separate_prolog = !is_monolithic;
 
-       if (ctx.type == PIPE_SHADER_FRAGMENT) {
+       if (ctx.type == PIPE_SHADER_VERTEX ||
+           ctx.type == PIPE_SHADER_FRAGMENT) {
                ctx.no_prolog = false;
                ctx.no_epilog = false;
        }
@@ -7192,7 +7197,33 @@ int si_compile_tgsi_shader(struct si_screen *sscreen,
                return -1;
        }
 
-       if (is_monolithic && ctx.type == PIPE_SHADER_FRAGMENT) {
+       if (is_monolithic && ctx.type == PIPE_SHADER_VERTEX) {
+               LLVMValueRef parts[3];
+               bool need_prolog;
+               bool need_epilog;
+
+               need_prolog = sel->info.num_inputs;
+               need_epilog = !shader->key.vs.as_es && !shader->key.vs.as_ls;
+
+               parts[need_prolog ? 1 : 0] = ctx.main_fn;
+
+               if (need_prolog) {
+                       union si_shader_part_key prolog_key;
+                       si_get_vs_prolog_key(shader, &prolog_key);
+                       si_build_vs_prolog_function(&ctx, &prolog_key);
+                       parts[0] = ctx.main_fn;
+               }
+
+               if (need_epilog) {
+                       union si_shader_part_key epilog_key;
+                       si_get_vs_epilog_key(shader, &shader->key.vs.epilog, &epilog_key);
+                       si_build_vs_epilog_function(&ctx, &epilog_key);
+                       parts[need_prolog ? 2 : 1] = ctx.main_fn;
+               }
+
+               si_build_wrapper_function(&ctx, parts, 1 + need_prolog + need_epilog,
+                                         need_prolog ? 1 : 0);
+       } else if (is_monolithic && ctx.type == PIPE_SHADER_FRAGMENT) {
                LLVMValueRef parts[3];
                union si_shader_part_key prolog_key;
                union si_shader_part_key epilog_key;