commit bd87cdad18138d36c6d9aca61270ffd2ddfd81e5
author Arcady Goldmints-Orlov <agoldmints@igalia.com> Sat Jul 25 15:20:02 2020 -0500
committer Marge Bot <eric+marge@anholt.net> Thu Aug 20 20:14:14 2020 +0000
tree 697909bd37d64a403ad9f3bea3593c9de2f22887
parent adda97c98bfb5122a261561b3103023e7c21b381

broadcom/compiler: support nir_intrinsic_load_sample_id

This adds support for the intrinsic as well as the vir_SAMPID
instruction that corresponds to it in vir.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6356>

src/broadcom/compiler/nir_to_vir.c

diff --git a/src/broadcom/compiler/nir_to_vir.c b/src/broadcom/compiler/nir_to_vir.c
index 3116031..e48db95 100644
--- a/src/broadcom/compiler/nir_to_vir.c
+++ b/src/broadcom/compiler/nir_to_vir.c
@@ -2392,6 +2392,10 @@
                                vir_uniform(c, QUNIFORM_FB_LAYERS, 0));
                 break;
 
+        case nir_intrinsic_load_sample_id:
+                ntq_store_dest(c, &instr->dest, 0, vir_SAMPID(c));
+                break;
+
         default:
                 fprintf(stderr, "Unknown intrinsic: ");
                 nir_print_instr(&instr->instr, stderr);

src/broadcom/compiler/v3d_compiler.h

diff --git a/src/broadcom/compiler/v3d_compiler.h b/src/broadcom/compiler/v3d_compiler.h
index 0026dd2..9061a09 100644
--- a/src/broadcom/compiler/v3d_compiler.h
+++ b/src/broadcom/compiler/v3d_compiler.h
@@ -1084,6 +1084,7 @@
 VIR_A_ALU0(MSF)
 VIR_A_ALU0(REVF)
 VIR_A_ALU0(BARRIERID)
+VIR_A_ALU0(SAMPID)
 VIR_A_NODST_1(VPMSETUP)
 VIR_A_NODST_0(VPMWT)
 VIR_A_ALU2(FCMP)