gcc/testsuite/gcc.c-torture/execute/pr58984.c

   1 /* PR tree-optimization/58984 */
   2
   3 struct S { int f0 : 8; int : 6; int f1 : 5; };
   4 struct T { char f0; int : 6; int f1 : 5; };
   5
   6 int a, *c = &a, e, n, b, m;
   7
   8 static int
   9 foo (struct S p)
  10 {
  11   const unsigned short *f[36];
  12   for (; e < 2; e++)
  13     {
  14       const unsigned short **i = &f[0];
  15       *c ^= 1;
  16       if (p.f1)
  17         {
  18           *i = 0;
  19           return b;
  20         }
  21     }
  22   return 0;
  23 }
  24
  25 static int
  26 bar (struct T p)
  27 {
  28   const unsigned short *f[36];
  29   for (; e < 2; e++)
  30     {
  31       const unsigned short **i = &f[0];
  32       *c ^= 1;
  33       if (p.f1)
  34         {
  35           *i = 0;
  36           return b;
  37         }
  38     }
  39   return 0;
  40 }
  41
  42 int
  43 main ()
  44 {
  45   struct S o = { 1, 1 };
  46   foo (o);
  47   m = n || o.f0;
  48   if (a != 1)
  49     __builtin_abort ();
  50   e = 0;
  51   struct T p = { 1, 1 };
  52   bar (p);
  53   m |= n || p.f0;
  54   if (a != 0)
  55     __builtin_abort ();
  56   return 0;
  57 }