gcc/testsuite/gcc.dg/pr101403.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2" } */
   3 unsigned int foo (unsigned int a)
   4 {
   5   unsigned int u = 0;
   6   unsigned short b = __builtin_bswap16 (a);
   7   return b >> (u, 12);
   8 }
   9
  10 int main (void)
  11 {
  12   unsigned int x = foo (0x80);
  13   if (x != 0x0008)
  14     __builtin_abort ();
  15   return 0;
  16 }
  17