From adfc1086c9fb9d8b0477a353feff84bf59dc09d3 Mon Sep 17 00:00:00 2001
From: Job Noorman <jnoorman@igalia.com>
Date: Fri, 3 Apr 2026 08:18:08 +0200
Subject: [PATCH] nir/recompute_io_bases: fix num_slots for per_view outputs

per_view outputs use one slot per enabled view.

Signed-off-by: Job Noorman <jnoorman@igalia.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40651>
---
 src/compiler/nir/nir_recompute_io_bases.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/compiler/nir/nir_recompute_io_bases.c b/src/compiler/nir/nir_recompute_io_bases.c
index 04b57f68944..28ab9850fef 100644
--- a/src/compiler/nir/nir_recompute_io_bases.c
+++ b/src/compiler/nir/nir_recompute_io_bases.c
@@ -102,6 +102,8 @@ nir_recompute_io_bases(nir_shader *nir, nir_variable_mode modes)
                                sem.location)) {
             num_slots = DIV_ROUND_UP(num_slots, 4);
          }
+         if (sem.per_view)
+            num_slots *= util_bitcount(nir->info.view_mask);
 
          if (mode == nir_var_shader_in) {
             for (unsigned i = 0; i < num_slots; i++) {