gcc/testsuite/gcc.dg/torture/pr36373-1.c

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