lib/parityti2.c

   1 /* ===-- parityti2.c - Implement __parityti2 -------------------------------===
   2  *
   3  *                     The LLVM Compiler Infrastructure
   4  *
   5  * This file is dual licensed under the MIT and the University of Illinois Open
   6  * Source Licenses. See LICENSE.TXT for details.
   7  *
   8  * ===----------------------------------------------------------------------===
   9  *
  10  * This file implements __parityti2 for the compiler_rt library.
  11  *
  12  * ===----------------------------------------------------------------------===
  13  */
  14
  15 #include "int_lib.h"
  16
  17 #if __x86_64
  18
  19 /* Returns: 1 if number of bits is odd else returns 0 */
  20
  21 si_int __paritydi2(di_int a);
  22
  23 si_int
  24 __parityti2(ti_int a)
  25 {
  26     twords x;
  27     x.all = a;
  28     return __paritydi2(x.s.high ^ x.s.low);
  29 }
  30
  31 #endif