From a6f67d5b69bcd2335e614c9782d415a45da08ff9 Mon Sep 17 00:00:00 2001
From: Ella Stanforth <ella@igalia.com>
Date: Thu, 10 Apr 2025 12:46:13 +0100
Subject: [PATCH] v3d/compiler: Only lower logic ops for color buffers that
 exist

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33942>
---
 src/broadcom/compiler/v3d_nir_lower_logic_ops.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/broadcom/compiler/v3d_nir_lower_logic_ops.c b/src/broadcom/compiler/v3d_nir_lower_logic_ops.c
index c2eaa5aad72..bdae6c926e0 100644
--- a/src/broadcom/compiler/v3d_nir_lower_logic_ops.c
+++ b/src/broadcom/compiler/v3d_nir_lower_logic_ops.c
@@ -354,6 +354,9 @@ v3d_nir_lower_logic_ops_block(nir_block *block, struct v3d_compile *c)
                         const int rt = driver_loc;
                         assert(rt < V3D_MAX_DRAW_BUFFERS);
 
+                        if (!(c->fs_key->cbufs & (1 << rt)))
+                                continue;
+
                         const enum pipe_format format =
                                 c->fs_key->color_fmt[rt].format;
                         if (util_format_is_float(format) ||