From 261e741f643fd6626cb9161e472628f300fd76ac Mon Sep 17 00:00:00 2001 From: Mark Wielaard Date: Tue, 23 Feb 2016 11:47:19 +0000 Subject: PR c/69911 Check main_input_filename and DECL_SOURCE_FILE are not NULL. DECL_SOURCE_FILE can be NULL (for example when DECL_ARTIFICIAL). So make sure to check before comparing against main_input_filename. gcc/ChangeLog PR c/69911 * cgraphunit.c (check_global_declaration): Check main_input_filename and DECL_SOURCE_FILE are not NULL. Co-Authored-By: Jakub Jelinek From-SVN: r233627 --- gcc/cgraphunit.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'gcc/cgraphunit.c') diff --git a/gcc/cgraphunit.c b/gcc/cgraphunit.c index 27a073a..8b3fddc 100644 --- a/gcc/cgraphunit.c +++ b/gcc/cgraphunit.c @@ -917,6 +917,7 @@ walk_polymorphic_call_targets (hash_set *reachable_call_targets, static void check_global_declaration (symtab_node *snode) { + const char *decl_file; tree decl = snode->decl; /* Warn about any function declared static but not defined. We don't @@ -944,8 +945,10 @@ check_global_declaration (symtab_node *snode) || (((warn_unused_variable && ! TREE_READONLY (decl)) || (warn_unused_const_variable > 0 && TREE_READONLY (decl) && (warn_unused_const_variable == 2 - || filename_cmp (main_input_filename, - DECL_SOURCE_FILE (decl)) == 0))) + || (main_input_filename != NULL + && (decl_file = DECL_SOURCE_FILE (decl)) != NULL + && filename_cmp (main_input_filename, + decl_file) == 0)))) && TREE_CODE (decl) == VAR_DECL)) && ! DECL_IN_SYSTEM_HEADER (decl) && ! snode->referred_to_p (/*include_self=*/false) -- cgit v1.1