From 33bba6028ce98fc811235f829f88d7d6778409de Mon Sep 17 00:00:00 2001
From: MerryMage <MerryMage@users.noreply.github.com>
Date: Wed, 24 Jan 2018 16:15:17 +0000
Subject: [PATCH] bit_util: bug: Infinite loop in HighestSetBit

---
 src/common/bit_util.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/common/bit_util.h b/src/common/bit_util.h
index fb93fbea..3168578d 100644
--- a/src/common/bit_util.h
+++ b/src/common/bit_util.h
@@ -101,6 +101,9 @@ inline int HighestSetBit(T value) {
 template <typename T>
 inline size_t LowestSetBit(T value) {
     auto x = static_cast<std::make_unsigned_t<T>>(value);
+    if (x == 0)
+        return BitSize<T>();
+
     size_t result = 0;
     while ((x & 1) == 0) {
         x >>= 1;