From 853e2b90a3a63e1390695702db2c62e62bf02052 Mon Sep 17 00:00:00 2001
From: Eladash <elad3356p@gmail.com>
Date: Thu, 13 Aug 2020 23:09:51 +0300
Subject: [PATCH] rsx: Minor rsx::ceil_log2 bugfix

---
 rpcs3/Emu/RSX/rsx_utils.h | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/rpcs3/Emu/RSX/rsx_utils.h b/rpcs3/Emu/RSX/rsx_utils.h
index 7aca04b738..ed80b6120b 100644
--- a/rpcs3/Emu/RSX/rsx_utils.h
+++ b/rpcs3/Emu/RSX/rsx_utils.h
@@ -245,18 +245,17 @@ namespace rsx
 		}
 	}
 
-	//
-	static inline u32 floor_log2(u32 value)
+	static constexpr u32 floor_log2(u32 value)
 	{
 		return value <= 1 ? 0 : std::countl_zero(value) ^ 31;
 	}
 
-	static inline u32 ceil_log2(u32 value)
+	static constexpr u32 ceil_log2(u32 value)
 	{
-		return value <= 1 ? 0 : std::countl_zero((value - 1) << 1) ^ 31;
+		return floor_log2(value) + u32{!!(value & (value - 1))};
 	}
 
-	static inline u32 next_pow2(u32 x)
+	static constexpr u32 next_pow2(u32 x)
 	{
 		if (x <= 2) return x;