https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99447
--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
So like this.
diff --git a/gcc/cgraph.c b/gcc/cgraph.c
index 80140757d16..447d9a920f7 100644
--- a/gcc/cgraph.c
+++ b/gcc/cgraph.c
@@ -1854,6 +1854,9 @@ cgraph_node::release_body (bool keep_arguments)
needed to emit debug info later. */
if (!used_as_abstract_origin && DECL_INITIAL (decl))
DECL_INITIAL (decl) = error_mark_node;
+ /* Zap references to call stmts of our body. */
+ for (cgraph_edge *e = callees; e; e = e->next_callee)
+ e->call_stmt = NULL;
release_function_body (decl);
if (lto_file_data)
{
