From 23884ee02c48282219be4b29166d9c0ca3024abd Mon Sep 17 00:00:00 2001
From: Kenneth Graunke <kenneth@whitecape.org>
Date: Mon, 18 May 2026 19:18:22 -0700
Subject: [PATCH] jay: Prohibit JAY_STRIDE_8 for EXPAND_QUAD

No idea why we're getting a stride 8 here, but we can't handle it.
Fixes baldurs_gate_3.vk.foz --graphics-pipeline-range 2248 2249.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41688>
---
 src/intel/compiler/jay/jay_register_allocate.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/intel/compiler/jay/jay_register_allocate.c b/src/intel/compiler/jay/jay_register_allocate.c
index 380a40d6814..21fe2ae7f69 100644
--- a/src/intel/compiler/jay/jay_register_allocate.c
+++ b/src/intel/compiler/jay/jay_register_allocate.c
@@ -115,6 +115,10 @@ jay_dst_stride_minmax(jay_inst *I, bool do_max)
       min = MAX2(min, jay_min_stride_for_type(jay_src_type(I, 0)));
    }
 
+   if (I->op == JAY_OPCODE_EXPAND_QUAD) {
+      return JAY_STRIDE_4;
+   }
+
    /* V/UV types are restricted */
    if (I->op == JAY_OPCODE_SHR_ODD_SUBSPANS_BY_4) {
       return JAY_STRIDE_2;