From: Eric Engestrom <eric.engestrom@intel.com>
Date: Tue, 16 Oct 2018 08:43:07 +0000 (+0100)
Subject: util: use *unsigned* ints for bit operations
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=bc021be78d2d5a36376494fca7eaf7f0728c6a29;p=mesa.git

util: use *unsigned* ints for bit operations

Fixes errors thrown by GCC's Undefined Behaviour sanitizer (ubsan) every
time this macro is used.

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
---

diff --git a/src/util/bitset.h b/src/util/bitset.h
index adafc72a5f7..3b18abac793 100644
--- a/src/util/bitset.h
+++ b/src/util/bitset.h
@@ -54,7 +54,7 @@
 #define BITSET_ONES(x) memset( (x), 0xff, sizeof (x) )
 
 #define BITSET_BITWORD(b) ((b) / BITSET_WORDBITS)
-#define BITSET_BIT(b) (1 << ((b) % BITSET_WORDBITS))
+#define BITSET_BIT(b) (1u << ((b) % BITSET_WORDBITS))
 
 /* single bit operations
  */