[Bug ipa/85549] [8/9 Regression] Infinite loop in ilmbase package

[jamborm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85549

--- Comment #4 from Martin Jambor <jamborm at gcc dot gnu.org> ---
This is another stupid omission, I forgot that for by-reference aggregate
values, one has to check the agg_preserved of the jump function.

diff --git a/gcc/ipa-cp.c b/gcc/ipa-cp.c
index 1b8f335fd32..4f28a55b862 100644
--- a/gcc/ipa-cp.c
+++ b/gcc/ipa-cp.c
@@ -4372,7 +4372,9 @@ find_aggregate_values_for_callers_subset (struct
cgraph_node *node,
        {
          struct ipa_jump_func *jfunc
            = ipa_get_ith_jump_func (IPA_EDGE_REF (cs), i);
-         if (self_recursive_pass_through_p (cs, jfunc, i))
+         if (self_recursive_pass_through_p (cs, jfunc, i)
+             && (!plats->aggs_by_ref
+                 || ipa_get_jf_pass_through_agg_preserved (jfunc)))
            continue;
          inter = intersect_aggregates_with_edge (cs, i, inter);