gcc/testsuite/gcc.dg/pr48134.c

   1 /* { dg-do compile } */
   2 /* { dg-require-stack-check "specific" } */
   3 /* { dg-options "-O2 -fstack-check=specific -fno-tree-dse -fno-tree-fre -fno-tree-loop-optimize -g" } */
   4
   5 struct S
   6 {
   7   int w, z;
   8 };
   9 struct T
  10 {
  11   struct S s;
  12 };
  13
  14 int i;
  15
  16 static inline struct S
  17 bar (struct S x)
  18 {
  19   i++;
  20   return x;
  21 }
  22
  23 int
  24 foo (struct T t, struct S s)
  25 {
  26   struct S *c = &s;
  27   if (i)
  28     c = &t.s;
  29   t.s.w = 3;
  30   s = bar (*c);
  31   return t.s.w;
  32 }