Imported Upstream version 5.14.0.78

Former-commit-id: 3494343bcc9ddb42b36b82dd9ae7b69e85e0229f

mcs/class/corlib/ReferenceSources/Buffer.cs

@@ -181,34 +181,39 @@ namespace System
 				((byte*)dest) [0] = ((byte*)src) [0];
 		}
 
-		internal static unsafe void Memcpy (byte *dest, byte *src, int size) {
+		internal static unsafe void Memcpy (byte *dest, byte *src, int len) {
 			// FIXME: if pointers are not aligned, try to align them
 			// so a faster routine can be used. Handle the case where
 			// the pointers can't be reduced to have the same alignment
 			// (just ignore the issue on x86?)
 			if ((((int)dest | (int)src) & 3) != 0) {
-				if (((int)dest & 1) != 0 && ((int)src & 1) != 0 && size >= 1) {
+				if (((int)dest & 1) != 0 && ((int)src & 1) != 0 && len >= 1) {
 					dest [0] = src [0];
 					++dest;
 					++src;
-					--size;
+					--len;
 				}
-				if (((int)dest & 2) != 0 && ((int)src & 2) != 0 && size >= 2) {
+				if (((int)dest & 2) != 0 && ((int)src & 2) != 0 && len >= 2) {
 					((short*)dest) [0] = ((short*)src) [0];
 					dest += 2;
 					src += 2;
-					size -= 2;
+					len -= 2;
 				}
 				if ((((int)dest | (int)src) & 1) != 0) {
-					memcpy1 (dest, src, size);
+					memcpy1 (dest, src, len);
 					return;
 				}
 				if ((((int)dest | (int)src) & 2) != 0) {
-					memcpy2 (dest, src, size);
+					memcpy2 (dest, src, len);
 					return;
 				}
 			}
-			memcpy4 (dest, src, size);
+			memcpy4 (dest, src, len);
+		}
+
+		internal static unsafe void Memmove (byte *dest, byte *src, uint len)
+		{
+			Memcpy (dest, src, (int) len);
 		}
 	}
 }