1 files changed, 65 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr36908.c b/gcc/testsuite/gcc.dg/tree-ssa/pr36908.c
new file mode 100644
index 000000000..8fa2ed2ca
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr36908.c
@@ -0,0 +1,65 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -ftree-loop-distribution" } */
+#define NULL ((void *)0)
+
+__extension__ typedef __SIZE_TYPE__ size_t;
+extern void *foo(size_t nelem, size_t elsize);
+extern void bar (char*, ...);
+
+typedef struct alt_state *alt_state_t;
+typedef struct state *state_t;
+
+struct alt_state
+{
+  alt_state_t next_alt_state;
+};
+
+static alt_state_t first_free_alt_state = NULL;
+
+static void
+free_alt_state (alt_state_t alt_state)
+{
+  if (alt_state == NULL)
+    return;
+  alt_state->next_alt_state = first_free_alt_state;
+  first_free_alt_state = alt_state;
+}
+
+/* The function frees list started with node ALT_STATE_LIST.  */
+static void
+free_alt_states (alt_state_t alt_states_list)
+{
+  alt_state_t curr_alt_state;
+  alt_state_t next_alt_state;
+
+  for (curr_alt_state = alt_states_list;
+       curr_alt_state != NULL;
+       curr_alt_state = next_alt_state)
+    {
+      next_alt_state = curr_alt_state->next_alt_state;
+      free_alt_state (curr_alt_state);
+    }
+}
+
+int 
+main (void)
+{
+  int i;
+  alt_state_t state, act_state;
+
+  act_state = state = foo (1, sizeof (struct alt_state));
+  for (i = 0; i < 2; i ++)
+  {
+    act_state->next_alt_state = foo (1, sizeof (struct alt_state));
+    act_state = act_state->next_alt_state;
+  }
+
+  free_alt_states (state);
+
+  for (act_state = first_free_alt_state;
+       act_state != NULL;
+       act_state = act_state->next_alt_state)
+       bar ("going from %p to %p\n", act_state, act_state->next_alt_state);
+
+  return 0;
+}