src/libcompiler_builtins/compiler-rt/lib/builtins/paritydi2.c

   1 /* ===-- paritydi2.c - Implement __paritydi2 -------------------------------===
   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 __paritydi2 for the compiler_rt library.
  11  *
  12  * ===----------------------------------------------------------------------===
  13  */
  14
  15 #include "int_lib.h"
  16
  17 /* Returns: 1 if number of bits is odd else returns 0 */
  18
  19 COMPILER_RT_ABI si_int
  20 __paritydi2(di_int a)
  21 {
  22     dwords x;
  23     x.all = a;
  24     return __paritysi2(x.s.high ^ x.s.low);
  25 }