gcc/testsuite/gcc.c-torture/compile/pr39423-2.c

   1 /* PR target/39423 */
   2
   3 typedef unsigned short uint16_t;
   4
   5 typedef struct
   6 {
   7   short x, y;
   8 } P;
   9
  10 typedef struct
  11 {
  12   uint16_t w, h;
  13 } D;
  14
  15 typedef struct
  16 {
  17   P p;
  18   D s;
  19 } A;
  20
  21 typedef struct
  22 {
  23   uint16_t f;
  24 } W;
  25
  26 typedef struct
  27 {
  28   void* w;
  29   D s;
  30 } T;
  31
  32 extern void* foo00 (void*, void*);
  33
  34 void foo01 (W* w)
  35 {
  36   void* it;
  37   uint16_t c, i;
  38   T* cl;
  39   T* rs;
  40   T* t;
  41   uint16_t rh = 0;
  42   uint16_t v = !(w->f & 0x8000);
  43   A a = { };
  44
  45   for (c = 0, it = foo00 (w, 0); it; it = foo00 (w, it), c++);
  46
  47   for (it = foo00 (w, 0), i = 0; i <= c; it = foo00 (w, it), i++, cl++)
  48     {
  49       if (i)
  50         for (t = rs; t < cl; t++)
  51           *((uint16_t*)&t->s + ((!v) ? 1 : 0)) = rh;
  52
  53       rh = (rh > ((*((uint16_t*)&a.s + ((!v) ? 1 : 0)))))
  54            ? rh
  55            : ((*((uint16_t*)&a.s + ((!v) ? 1 : 0))));
  56     }
  57 }