Avoid segfault when dumping IPA-CP lattices for unoptimized functions (PR 92917)

2020-01-03  Martin Jambor  <mjambor@suse.cz>

	PR ipa/92917
	* ipa-cp.c (print_all_lattices): Skip functions without info.

From-SVN: r279859

gcc/ChangeLog

+2020-01-03  Martin Jambor  <mjambor@suse.cz>
+
+	PR ipa/92917
+	* ipa-cp.c (print_all_lattices): Skip functions without info.
+
 2020-01-03  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/93089

gcc/ipa-cp.c

@@ -543,8 +543,9 @@ print_all_lattices (FILE * f, bool dump_sources, bool dump_benefits)
       class ipa_node_params *info;
 
       info = IPA_NODE_REF (node);
-      /* Skip constprop clones since we don't make lattices for them.  */
-      if (info->ipcp_orig_node)
+      /* Skip unoptimized functions and constprop clones since we don't make
+	 lattices for them.  */
+      if (!info || info->ipcp_orig_node)
 	continue;
       fprintf (f, "  Node: %s:\n", node->dump_name ());
       count = ipa_get_param_count (info);