gcc/testsuite/gcc.dg/pr82274-1.c

   1 /* PR target/82274 */
   2 /* { dg-do run } */
   3 /* { dg-shouldfail "trapv" } */
   4 /* { dg-options "-ftrapv" } */
   5
   6 int
   7 main ()
   8 {
   9 #ifdef __SIZEOF_INT128__
  10   volatile __int128 m = -(((__int128) 1) << (__CHAR_BIT__ * __SIZEOF_INT128__ / 2));
  11 #else
  12   volatile long long m = -(1LL << (__CHAR_BIT__ * __SIZEOF_LONG_LONG__ / 2));
  13 #endif
  14   m = m * m;
  15   return 0;
  16 }