gcc/testsuite/gcc.dg/torture/pr36373-2.c

   1 /* { dg-do run } */
   2 /* { dg-options "-fno-tree-sra" } */
   3
   4 extern void abort (void);
   5 struct Foo {
   6     int *p;
   7 };
   8 struct Bar {
   9     struct Foo *x;
  10     int *q;
  11 };
  12 struct Foo __attribute__((noinline))
  13 bar(int *p)
  14 {
  15   struct Foo f;
  16   f.p = p;
  17   return f;
  18 }
  19 void __attribute__((noinline))
  20 foo(struct Foo f)
  21 {
  22   *f.p = 0;
  23 }
  24 int main()
  25 {
  26   int a, b;
  27   a = 0;
  28   b = 1;
  29   struct Bar f;
  30   struct Foo g = bar (&b);
  31   f.x = &g;
  32   f.q = &a;
  33   foo(*f.x);
  34   if (b != 0)
  35     abort ();
  36   return 0;
  37 }