[X86] Expose the various _rot intrinsics on non-MS platforms

_rotl, _rotwl and _lrotl (and their right-shift counterparts) are official x86
intrinsics, and should be supported regardless of environment. This is in contrast
to _rotl8, _rotl16, and _rotl64 which are MS-specific.

Note that the MS documentation for _lrotl is different from the Intel 
documentation. Intel explicitly documents it as a 64-bit rotate, while for MS,
since sizeof(unsigned long) for MSVC is always 4, a 32-bit rotate is implied.

Differential Revision: http://reviews.llvm.org/D12271

llvm-svn: 245923

1 files changed, 0 insertions, 20 deletions

diff --git a/clang/lib/Headers/Intrin.h b/clang/lib/Headers/Intrin.h
index 67c8a63265f..d687ff1f3d5 100644
--- a/clang/lib/Headers/Intrin.h
+++ b/clang/lib/Headers/Intrin.h
@@ -463,26 +463,6 @@ _rotr16(unsigned short _Value, unsigned char _Shift) {
   _Shift &= 0xf;
   return _Shift ? (_Value >> _Shift) | (_Value << (16 - _Shift)) : _Value;
 }
-static __inline__ unsigned int __DEFAULT_FN_ATTRS
-_rotl(unsigned int _Value, int _Shift) {
-  _Shift &= 0x1f;
-  return _Shift ? (_Value << _Shift) | (_Value >> (32 - _Shift)) : _Value;
-}
-static __inline__ unsigned int __DEFAULT_FN_ATTRS
-_rotr(unsigned int _Value, int _Shift) {
-  _Shift &= 0x1f;
-  return _Shift ? (_Value >> _Shift) | (_Value << (32 - _Shift)) : _Value;
-}
-static __inline__ unsigned long __DEFAULT_FN_ATTRS
-_lrotl(unsigned long _Value, int _Shift) {
-  _Shift &= 0x1f;
-  return _Shift ? (_Value << _Shift) | (_Value >> (32 - _Shift)) : _Value;
-}
-static __inline__ unsigned long __DEFAULT_FN_ATTRS
-_lrotr(unsigned long _Value, int _Shift) {
-  _Shift &= 0x1f;
-  return _Shift ? (_Value >> _Shift) | (_Value << (32 - _Shift)) : _Value;
-}
 static
 __inline__ unsigned __int64 __DEFAULT_FN_ATTRS
 _rotl64(unsigned __int64 _Value, int _Shift) {