gcc/testsuite/gcc.c-torture/execute/pr37780.c

   1 /* PR middle-end/37780.  */
   2
   3 #define VAL (8 * sizeof (int))
   4
   5 int __attribute__ ((noinline, noclone))
   6 fooctz (int i)
   7 {
   8   return (i == 0) ? VAL : __builtin_ctz (i);
   9 }
  10
  11 int __attribute__ ((noinline, noclone))
  12 fooctz2 (int i)
  13 {
  14   return (i != 0) ? __builtin_ctz (i) : VAL;
  15 }
  16
  17 unsigned int __attribute__ ((noinline, noclone))
  18 fooctz3 (unsigned int i)
  19 {
  20   return (i > 0) ?  __builtin_ctz (i) : VAL;
  21 }
  22
  23 int __attribute__ ((noinline, noclone))
  24 fooclz (int i)
  25 {
  26   return (i == 0) ? VAL : __builtin_clz (i);
  27 }
  28
  29 int __attribute__ ((noinline, noclone))
  30 fooclz2 (int i)
  31 {
  32   return (i != 0) ? __builtin_clz (i) : VAL;
  33 }
  34
  35 unsigned int __attribute__ ((noinline, noclone))
  36 fooclz3 (unsigned int i)
  37 {
  38   return (i > 0) ? __builtin_clz (i) : VAL;
  39 }
  40
  41 int
  42 main (void)
  43 {
  44   if (fooctz (0) != VAL || fooctz2 (0) != VAL || fooctz3 (0) != VAL
  45       || fooclz (0) != VAL || fooclz2 (0) != VAL || fooclz3 (0) != VAL)
  46     __builtin_abort ();
  47
  48   return 0;
  49 }