From 20b37b273f86d6eff4a99b30de90c914d6cc3c08 Mon Sep 17 00:00:00 2001
From: Iago Toral Quiroga <itoral@igalia.com>
Date: Wed, 29 Sep 2021 11:54:18 +0200
Subject: [PATCH] broadcom/compiler: make vir_write_rX return false on
 platforms without accums
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Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25450>
---
 src/broadcom/compiler/vir.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/broadcom/compiler/vir.c b/src/broadcom/compiler/vir.c
index ef91bd7c556..1a24c6e1618 100644
--- a/src/broadcom/compiler/vir.c
+++ b/src/broadcom/compiler/vir.c
@@ -158,6 +158,9 @@ vir_is_tex(const struct v3d_device_info *devinfo, struct qinst *inst)
 bool
 vir_writes_r3(const struct v3d_device_info *devinfo, struct qinst *inst)
 {
+        if (!devinfo->has_accumulators)
+                return false;
+
         for (int i = 0; i < vir_get_nsrc(inst); i++) {
                 switch (inst->src[i].file) {
                 case QFILE_VPM:
@@ -180,6 +183,9 @@ vir_writes_r3(const struct v3d_device_info *devinfo, struct qinst *inst)
 bool
 vir_writes_r4(const struct v3d_device_info *devinfo, struct qinst *inst)
 {
+        if (!devinfo->has_accumulators)
+                return false;
+
         switch (inst->dst.file) {
         case QFILE_MAGIC:
                 switch (inst->dst.index) {