gcc/testsuite/c-c++-common/pr107465.c

   1 /* PR c/107465 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-Wsign-compare" } */
   4
   5 void baz (void);
   6 typedef unsigned short T;
   7
   8 #if __SIZEOF_SHORT__ * __CHAR_BIT__ == 16
   9 void
  10 foo (unsigned short x)
  11 {
  12   if (!(x ^ 0xFFFF))
  13     baz ();
  14 }
  15
  16 void
  17 bar (T x)
  18 {
  19   if (!(x ^ 0xFFFF))    /* { dg-bogus "promoted bitwise complement of an unsigned value is always nonzero" } */
  20     baz ();
  21 }
  22 #endif