From 1455f33f9b83cf8a818725dcb38f8ac2a7fd7321 Mon Sep 17 00:00:00 2001
From: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Date: Sat, 17 Apr 2021 20:43:32 -0400
Subject: [PATCH] agx: Implement vertex_id

Preloaded to r5 in vertex shaders.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Acked-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10582>
---
 src/asahi/compiler/agx_compile.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/asahi/compiler/agx_compile.c b/src/asahi/compiler/agx_compile.c
index 16ae7d78a76..997d7f9a277 100644
--- a/src/asahi/compiler/agx_compile.c
+++ b/src/asahi/compiler/agx_compile.c
@@ -273,6 +273,10 @@ agx_emit_intrinsic(agx_builder *b, nir_intrinsic_instr *instr)
      agx_emit_load_ubo(b, instr);
      break;
 
+  case nir_intrinsic_load_vertex_id:
+     agx_mov_to(b, dst, agx_abs(agx_register(10, AGX_SIZE_32))); /* TODO: RA */
+     break;
+
   default:
        fprintf(stderr, "Unhandled intrinsic %s\n", nir_intrinsic_infos[instr->intrinsic].name);
        assert(0);