From 94d6fd3693b0c12ed77a680321c66cd29c2992f7 Mon Sep 17 00:00:00 2001
From: jsteube <jens.steube@gmail.com>
Date: Sun, 27 Dec 2015 21:22:54 +0100
Subject: [PATCH] revert switch to rotate ()

---
 OpenCL/types_ocl.c | 28 ++++++++++++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

diff --git a/OpenCL/types_ocl.c b/OpenCL/types_ocl.c
index d83189e..60c972f 100644
--- a/OpenCL/types_ocl.c
+++ b/OpenCL/types_ocl.c
@@ -159,6 +159,8 @@ static inline u64 hl32_to_64 (const u32 a, const u32 b)
   return as_ulong ((uint2) (b, a));
 }
 
+#ifdef IS_AMD
+
 static inline u32 rotr32 (const u32 a, const u32 n)
 {
   return rotate (a, 32 - n);
@@ -169,8 +171,6 @@ static inline u32 rotl32 (const u32 a, const u32 n)
   return rotate (a, n);
 }
 
-#ifdef IS_AMD
-
 static inline u64 rotr64 (const u64 a, const u32 n)
 {
   uint2 a2 = as_uint2 (a);
@@ -196,6 +196,20 @@ static inline u64 rotl64 (const u64 a, const u32 n)
 
 #if CUDA_ARCH >= 350
 
+static inline u32 rotr32 (const u32 a, const u32 n)
+{
+  u32 r;
+
+  asm ("shf.r.wrap.b32 %0, %1, %2, %3;" : "=r"(r) : "r"(a), "r"(a), "r"(n));
+
+  return r;
+}
+
+static inline u32 rotl32 (const u32 a, const u32 n)
+{
+  return rotr32 (a, 32 - n);
+}
+
 static inline u64 rotr64 (const u64 a, const u32 n)
 {
   u32 il;
@@ -231,6 +245,16 @@ static inline u64 rotl64 (const u64 a, const u32 n)
 
 #else
 
+static inline u32 rotr32 (const u32 a, const u32 n)
+{
+  return rotate (a, 32 - n);
+}
+
+static inline u32 rotl32 (const u32 a, const u32 n)
+{
+  return rotate (a, n);
+}
+
 static inline u64 rotr64 (const u64 a, const u64 n)
 {
   return rotate (a, 64 - n);
-- 
2.43.0