Mesa (master): ac: add support for handling nir_intrinsic_load_vertex_id

[Timothy Arceri]

Module: Mesa
Branch: master
Commit: 5504bebfc419f93b54ca92f36d27c2f8b82bc552
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=5504bebfc419f93b54ca92f36d27c2f8b82bc552

Author: Timothy Arceri <tarceri at itsqueeze.com>
Date:   Tue Feb 27 12:47:00 2018 +1100

ac: add support for handling nir_intrinsic_load_vertex_id

This will be used by radeonsi.

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

---

 src/amd/common/ac_nir_to_llvm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index 96bbecd110..253c440a32 100644
--- 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;