gcc/testsuite/gcc.dg/pr34457-1.c

   1 /* PR c/34457 */
   2 /* { dg-do link } */
   3 /* { dg-require-effective-target trampolines } */
   4 /* { dg-require-effective-target lto } */
   5 /* { dg-options "-flto -O2" } */
   6 /* { dg-additional-sources "pr34457-2.c" } */
   7
   8
   9 typedef __SIZE_TYPE__ size_t;
  10 extern int printf (const char *, ...);
  11 extern void *memset (void *, int, size_t);
  12
  13 int bar (int (*p)(), int q, void *r) {}
  14
  15 int
  16 main(int argc, char **argv)
  17 {
  18   struct s { int a; char b[argc]; };
  19   int nested (struct s x) { return x.a + sizeof(x); }
  20   struct s t;
  21   memset (&t, 0, sizeof(t));
  22   t.a = 123;
  23   printf("%d\n", bar (nested, argc, &t));
  24   return 0;
  25 }