From 25a0d08b7f979ab3c6e970e1eb966c1b5ddbe9ac Mon Sep 17 00:00:00 2001 From: Martin Jambor Date: Thu, 12 Nov 2020 19:56:07 +0100 Subject: [PATCH] cgraph: Avoid segfault when attempting to dump NULL clone_info cgraph_node::materialize_clone segfaulted when I tried compiling Tramp3D with -fdump-ipa-all because there was no clone_info - IPA-CP created a clone only for an aggregate constant, adding a note to its transformation summary but not creating any tree_map nor param_adjustements. Fixed with the following obvious extra checks which has passed bootstrap and testing on x86_64-linux. gcc/ChangeLog: 2020-11-12 Martin Jambor * cgraphclones.c (cgraph_node::materialize_clone): Check that clone info is not NULL before attempting to dump it. --- gcc/cgraphclones.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/gcc/cgraphclones.c b/gcc/cgraphclones.c index 2e69689025a..2bf9baf9cc8 100644 --- a/gcc/cgraphclones.c +++ b/gcc/cgraphclones.c @@ -1107,7 +1107,7 @@ cgraph_node::materialize_clone () fprintf (symtab->dump_file, "cloning %s to %s\n", clone_of->dump_name (), dump_name ()); - if (info->tree_map) + if (info && info->tree_map) { fprintf (symtab->dump_file, " replace map:"); for (unsigned int i = 0; @@ -1123,7 +1123,7 @@ cgraph_node::materialize_clone () } fprintf (symtab->dump_file, "\n"); } - if (info->param_adjustments) + if (info && info->param_adjustments) info->param_adjustments->dump (symtab->dump_file); } clear_stmts_in_references (); -- 2.30.2