ac: add support for handling nir_intrinsic_load_vertex_id

This will be used by radeonsi.

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

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index 96bbecd110089f01998627b49bd0327b873b253c..253c440a3287263418bb880b64f7419bfd9f9cff 100644 (file)
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -4395,6 +4395,10 @@ static void visit_intrinsic(struct ac_nir_context *ctx,
        case nir_intrinsic_load_local_group_size:
                result = ctx->abi->load_local_group_size(ctx->abi);
                break;
+       case nir_intrinsic_load_vertex_id:
+               result = LLVMBuildAdd(ctx->ac.builder, ctx->abi->vertex_id,
+                                     ctx->abi->base_vertex, "");
+               break;
        case nir_intrinsic_load_vertex_id_zero_base: {
                result = ctx->abi->vertex_id;
                break;