From 0daa41c4af29f7a2695e8356e610cf88dea10d7f Mon Sep 17 00:00:00 2001
From: Max Graey <maxgraey@gmail.com>
Date: Sat, 24 Oct 2020 01:34:07 +0300
Subject: Avoid UB in pow2 func (#3243)

---
 src/support/bits.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/support/bits.cpp b/src/support/bits.cpp
index 1de9a0f3b..46deddc97 100644
--- a/src/support/bits.cpp
+++ b/src/support/bits.cpp
@@ -196,7 +196,7 @@ uint32_t log2(uint32_t v) {
   return 31 - countLeadingZeroes(v);
 }
 
-uint32_t pow2(uint32_t v) { return 1 << v; }
+uint32_t pow2(uint32_t v) { return 1 << (v & 31); }
 
 } // namespace Bits
 
-- 
cgit v1.2.3