gcc/testsuite/gcc.c-torture/execute/pr49886.c

   1 struct PMC {
   2     unsigned flags;
   3 };
   4
   5 typedef struct Pcc_cell
   6 {
   7     struct PMC *p;
   8     long bla;
   9     long type;
  10 } Pcc_cell;
  11
  12 int gi;
  13 int cond;
  14
  15 extern void abort ();
  16 extern void never_ever(int interp, struct PMC *pmc)
  17   __attribute__((noinline,noclone));
  18
  19 void never_ever (int interp, struct PMC *pmc)
  20 {
  21   abort ();
  22 }
  23
  24 static void mark_cell(int * interp, Pcc_cell *c)
  25   __attribute__((__nonnull__(1)));
  26
  27 static void
  28 mark_cell(int * interp, Pcc_cell *c)
  29 {
  30   if (!cond)
  31     return;
  32
  33   if (c && c->type == 4 && c->p
  34       && !(c->p->flags & (1<<18)))
  35     never_ever(gi + 1, c->p);
  36   if (c && c->type == 4 && c->p
  37       && !(c->p->flags & (1<<17)))
  38     never_ever(gi + 2, c->p);
  39   if (c && c->type == 4 && c->p
  40       && !(c->p->flags & (1<<16)))
  41     never_ever(gi + 3, c->p);
  42   if (c && c->type == 4 && c->p
  43       && !(c->p->flags & (1<<15)))
  44     never_ever(gi + 4, c->p);
  45   if (c && c->type == 4 && c->p
  46       && !(c->p->flags & (1<<14)))
  47     never_ever(gi + 5, c->p);
  48   if (c && c->type == 4 && c->p
  49       && !(c->p->flags & (1<<13)))
  50     never_ever(gi + 6, c->p);
  51   if (c && c->type == 4 && c->p
  52       && !(c->p->flags & (1<<12)))
  53     never_ever(gi + 7, c->p);
  54   if (c && c->type == 4 && c->p
  55       && !(c->p->flags & (1<<11)))
  56     never_ever(gi + 8, c->p);
  57   if (c && c->type == 4 && c->p
  58       && !(c->p->flags & (1<<10)))
  59     never_ever(gi + 9, c->p);
  60 }
  61
  62 static void
  63 foo(int * interp, Pcc_cell *c)
  64 {
  65   mark_cell(interp, c);
  66 }
  67
  68 static struct Pcc_cell *
  69 __attribute__((noinline,noclone))
  70 getnull(void)
  71 {
  72   return (struct Pcc_cell *) 0;
  73 }
  74
  75
  76 int main()
  77 {
  78   int i;
  79
  80   cond = 1;
  81   for (i = 0; i < 100; i++)
  82     foo (&gi, getnull ());
  83   return 0;
  84 }
  85
  86
  87 void
  88 bar_1 (int * interp, Pcc_cell *c)
  89 {
  90   c->bla += 1;
  91   mark_cell(interp, c);
  92 }
  93
  94 void
  95 bar_2 (int * interp, Pcc_cell *c)
  96 {
  97   c->bla += 2;
  98   mark_cell(interp, c);
  99 }
 100