gcc/testsuite/gcc.dg/graphite/run-id-pr114041-2.c

   1 /* PR tree-optimization/114041 */
   2 /* { dg-options "-O -fgraphite-identity" } */
   3
   4 unsigned a[24], b[24];
   5 enum E { E0 = 0, E1 = 1, E42 = 42, E56 = 56 };
   6
   7 __attribute__((noipa)) unsigned
   8 foo (enum E x)
   9 {
  10   for (int i = 0; i < 24; ++i)
  11     a[i] = i;
  12   unsigned e;
  13   if (x >= E42)
  14     e = __builtin_clz ((unsigned) x);
  15   else
  16     e = 42;
  17   for (int i = 0; i < 24; ++i)
  18     b[i] = i;
  19   return e;
  20 }
  21
  22 int
  23 main ()
  24 {
  25   if (foo (E1) != 42 || foo (E56) != __SIZEOF_INT__ * __CHAR_BIT__ - 6)
  26     __builtin_abort ();
  27 }