[PATCH] Clean up attribute value comparison in lto-symtab.c.

[Martin Liška]

Hi.

This is a small clean-up which Jakub suggested.

Patch can bootstrap on x86_64-linux-gnu and survives regression tests.

Ready to be installed?
Martin


gcc/lto/ChangeLog:

2018-04-11  Martin Liska  <mli...@suse.cz>

        * lto-symtab.c (lto_symtab_merge_p): Use attribute_value_equal
        function.
---
 gcc/lto/lto-symtab.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)



diff --git a/gcc/lto/lto-symtab.c b/gcc/lto/lto-symtab.c
index 37c4f45eb0b..2660542300e 100644
--- a/gcc/lto/lto-symtab.c
+++ b/gcc/lto/lto-symtab.c
@@ -580,9 +580,7 @@ lto_symtab_merge_p (tree prevailing, tree decl)
       tree prev_attr = lookup_attribute ("error", DECL_ATTRIBUTES (prevailing));
       tree attr = lookup_attribute ("error", DECL_ATTRIBUTES (decl));
       if ((prev_attr == NULL) != (attr == NULL)
-	  || (prev_attr
-	      && TREE_VALUE (TREE_VALUE (prev_attr))
-		 != TREE_VALUE (TREE_VALUE (attr))))
+	  || (prev_attr && !attribute_value_equal (prev_attr, attr)))
 	{
           if (symtab->dump_file)
 	    fprintf (symtab->dump_file, "Not merging decls; "
@@ -593,9 +591,7 @@ lto_symtab_merge_p (tree prevailing, tree decl)
       prev_attr = lookup_attribute ("warning", DECL_ATTRIBUTES (prevailing));
       attr = lookup_attribute ("warning", DECL_ATTRIBUTES (decl));
       if ((prev_attr == NULL) != (attr == NULL)
-	  || (prev_attr
-	      && TREE_VALUE (TREE_VALUE (prev_attr))
-		 != TREE_VALUE (TREE_VALUE (attr))))
+	  || (prev_attr && !attribute_value_equal (prev_attr, attr)))
 	{
           if (symtab->dump_file)
 	    fprintf (symtab->dump_file, "Not merging decls; "