gcc/testsuite/gcc.dg/torture/pr53516.c

   1 /* { dg-do run } */
   2 /* { dg-options "-ftree-vectorize -ftree-loop-distribute-patterns" } */
   3
   4 extern void abort (void);
   5
   6 struct Foo
   7 {
   8   char a : 1;
   9   char b : 7;
  10 };
  11
  12 struct Foo x[256];
  13 int y[256];
  14
  15 void __attribute__((noinline,noclone)) bar (int n)
  16 {
  17   int i;
  18   for (i = 0; i < n; ++i)
  19     {
  20       x[i].a = 0;
  21       y[i] = 3;
  22     }
  23 }
  24
  25 int main()
  26 {
  27   x[5].b = 7;
  28   bar (256);
  29   if (x[5].b != 7)
  30     abort ();
  31   return 0;
  32 }