Revert commit a8bb4f8

Author: MariusVanDerWijden

libethash-cuda/dagger_shuffled.cuh

@@ -34,7 +34,13 @@ __device__ __forceinline__ bool compute_hash(
 				shuffle[j].x = __shfl_sync(0xFFFFFFFF,state[j].x, i+p, THREADS_PER_HASH);
 				shuffle[j].y = __shfl_sync(0xFFFFFFFF,state[j].y, i+p, THREADS_PER_HASH);
 			}
-			mix[p] = vectorize2(shuffle[mix_idx*2], shuffle[mix_idx*2 + 1]);
+			switch (mix_idx)
+			{
+				case 0: mix[p] = vectorize2(shuffle[0], shuffle[1]); break;
+				case 1: mix[p] = vectorize2(shuffle[2], shuffle[3]); break;
+				case 2: mix[p] = vectorize2(shuffle[4], shuffle[5]); break;
+				case 3: mix[p] = vectorize2(shuffle[6], shuffle[7]); break;
+			}
 			init0[p] = __shfl_sync(0xFFFFFFFF,shuffle[0].x, 0, THREADS_PER_HASH);
 		}