gcc/testsuite/gcc.dg/pr81019.c

   1 /* PR rtl-optimization/81019 */
   2 /* { dg-do run } */
   3 /* { dg-options "-O -fno-tree-ccp" } */
   4
   5 unsigned long long __attribute__((noinline, noclone))
   6 foo (unsigned char a, unsigned short b, unsigned c, unsigned long long d,
   7      unsigned char e, unsigned short f, unsigned g, unsigned long long h)
   8 {
   9   g = e;
  10   c &= 0 < d;
  11   b *= d;
  12   g ^= -1;
  13   g &= 1;
  14   c |= 1;
  15   a -= 0 < g;
  16   g >>= 1;
  17   f = b | (f >> b);
  18   return a + c + d + f + g + h;
  19 }
  20
  21 int
  22 main (void)
  23 {
  24   if (foo (0, 0, 0, 0, 0, 0, 0, 0) != 0x100)
  25     __builtin_abort ();
  26   return 0;
  27 }