From e6156df53a58b820e9b49f02bca53569d5b4be9f Mon Sep 17 00:00:00 2001
From: Krzysztof Kurek <krzysio.kurek@pm.me>
Date: Wed, 8 Nov 2023 20:28:22 +0100
Subject: [PATCH] panfrost: fix shift overflow in `bi_fold_constant`

closes https://gitlab.freedesktop.org/mesa/mesa/-/issues/9517

Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26116>
---
 src/panfrost/compiler/bi_opt_constant_fold.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/panfrost/compiler/bi_opt_constant_fold.c b/src/panfrost/compiler/bi_opt_constant_fold.c
index 92776fdcbac..df30cd78454 100644
--- a/src/panfrost/compiler/bi_opt_constant_fold.c
+++ b/src/panfrost/compiler/bi_opt_constant_fold.c
@@ -72,7 +72,7 @@ bi_fold_constant(bi_instr *I, bool *unsupported)
       if (I->not_result || I->src[0].neg || I->src[1].neg)
          break;
 
-      return (a << c) | b;
+      return (a << (c & 0x1F)) | b;
 
    case BI_OPCODE_F32_TO_U32:
       if (I->round == BI_ROUND_NONE) {