From feeb0d68f1c7085199c3734e6517a3a4b58309ef Mon Sep 17 00:00:00 2001 From: Martin Jambor Date: Tue, 22 Nov 2022 18:22:03 +0100 Subject: [PATCH] ipa-cp: Do not consider useless aggregate constants When building vectors of known aggregate values, there is no point in including those for parameters which are not used in any way whatsoever. This patch avoids that together with also other kinds of constants. gcc/ChangeLog: 2022-11-13 Martin Jambor * ipa-cp.cc (push_agg_values_from_edge): Do not consider constants in unused aggregate parameters. --- gcc/ipa-cp.cc | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/gcc/ipa-cp.cc b/gcc/ipa-cp.cc index f0feb4beb8f6..d5230c7c5e6b 100644 --- a/gcc/ipa-cp.cc +++ b/gcc/ipa-cp.cc @@ -5785,7 +5785,8 @@ push_agg_values_from_edge (struct cgraph_edge *cs, } ipcp_param_lattices *plats = ipa_get_parm_lattices (dest_info, index); - if (plats->aggs_bottom) + if (!ipa_is_param_used (dest_info, index) + || plats->aggs_bottom) continue; push_agg_values_for_index_from_edge (cs, index, res, optimize_self_recursion ? interim @@ -6151,6 +6152,9 @@ decide_whether_version_node (struct cgraph_node *node) for (i = 0; i < count;i++) { + if (!ipa_is_param_used (info, i)) + continue; + class ipcp_param_lattices *plats = ipa_get_parm_lattices (info, i); ipcp_lattice *lat = &plats->itself; ipcp_lattice *ctxlat = &plats->ctxlat; -- 2.47.2