From: Icecream95 <ixn@disroot.org>
Date: Wed, 14 Jul 2021 00:48:11 +0000 (+1200)
Subject: pan/gen_pack: Use 1U for unpacking log2 to avoid undefined behaviour
X-Git-Tag: upstream/22.3.5~20199
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bedbe35d6bb176475dbe9c4d8345e5774270a196;p=platform%2Fupstream%2Fmesa.git

pan/gen_pack: Use 1U for unpacking log2 to avoid undefined behaviour

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11869>
---

diff --git a/src/panfrost/lib/gen_pack.py b/src/panfrost/lib/gen_pack.py
index 8f9411a..72cc644 100644
--- a/src/panfrost/lib/gen_pack.py
+++ b/src/panfrost/lib/gen_pack.py
@@ -613,7 +613,7 @@ class Group(object):
                 elif field.modifier[0] == "shr":
                     suffix = " << {}".format(field.modifier[1])
                 if field.modifier[0] == "log2":
-                    prefix = "1 << "
+                    prefix = "1U << "
 
             decoded = '{}{}({}){}'.format(prefix, convert, ', '.join(args), suffix)