gcc/testsuite/gcc.c-torture/compile/pr50380.c

   1 __attribute__ ((__noreturn__)) extern void fail (void);
   2
   3 char x;
   4
   5 /* This used to get stuck in an infinite loop in find_comparison_args
   6    when compiling this function for MIPS at -O2.  */
   7
   8 void foo (const unsigned char y)
   9 {
  10    ((void) (__builtin_expect((!! y == y), 1) ? 0 : (fail (), 0)));
  11    x = ! y;
  12 }
  13
  14 /* This used to similarly get stuck when compiling for PowerPC at -O2.  */
  15
  16 int foo2 (int arg)
  17 {
  18   if (arg != !arg)
  19     fail ();
  20   if (arg)
  21     fail ();
  22 }