From 912827129239fdde5c913100f7b10992fa122426 Mon Sep 17 00:00:00 2001 From: Lioncash Date: Thu, 19 Jul 2018 09:21:20 -0400 Subject: common/common_funcs: Remove unused rotation functions These are unused and essentially don't provide much benefit either. If we ever need rotation functions, these can be introduced in a way that they don't sit in a common_* header and require a bunch of ifdefing to simply be available --- src/common/common_funcs.h | 38 -------------------------------------- 1 file changed, 38 deletions(-) diff --git a/src/common/common_funcs.h b/src/common/common_funcs.h index 995938d0b..c8a032eba 100644 --- a/src/common/common_funcs.h +++ b/src/common/common_funcs.h @@ -36,40 +36,6 @@ #define Crash() exit(1) #endif -// GCC 4.8 defines all the rotate functions now -// Small issue with GCC's lrotl/lrotr intrinsics is they are still 32bit while we require 64bit -#ifdef _rotl -#define rotl _rotl -#else -inline u32 rotl(u32 x, int shift) { - shift &= 31; - if (!shift) - return x; - return (x << shift) | (x >> (32 - shift)); -} -#endif - -#ifdef _rotr -#define rotr _rotr -#else -inline u32 rotr(u32 x, int shift) { - shift &= 31; - if (!shift) - return x; - return (x >> shift) | (x << (32 - shift)); -} -#endif - -inline u64 _rotl64(u64 x, unsigned int shift) { - unsigned int n = shift % 64; - return (x << n) | (x >> (64 - n)); -} - -inline u64 _rotr64(u64 x, unsigned int shift) { - unsigned int n = shift % 64; - return (x >> n) | (x << (64 - n)); -} - #else // _MSC_VER // Locale Cross-Compatibility @@ -80,10 +46,6 @@ __declspec(dllimport) void __stdcall DebugBreak(void); } #define Crash() DebugBreak() -// cstdlib provides these on MSVC -#define rotr _rotr -#define rotl _rotl - #endif // _MSC_VER ndef // Generic function to get last error message. -- cgit v1.2.3