re PR debug/84456 (gcc.dg/guality/pr49888.c fail)

	PR debug/84456
	* dwarf2out.c (dw_loc_list): If list && loc_list->first->next, call
	gen_llsym, otherwise call maybe_gen_llsym.

From-SVN: r258371

gcc/ChangeLog

 2018-03-08  Jakub Jelinek  <jakub@redhat.com>
 
+	PR debug/84456
+	* dwarf2out.c (dw_loc_list): If list && loc_list->first->next, call
+	gen_llsym, otherwise call maybe_gen_llsym.
+
 	PR inline-asm/84742
 	* recog.c (asm_operand_ok): Return 0 if multi-character constraint
 	has ',' character inside of it.

gcc/dwarf2out.c

@@ -17079,7 +17079,10 @@ dw_loc_list (var_loc_list *loc_list, tree decl, int want_address)
      representable, we don't want to pretend a single entry that was
      applies to the entire scope in which the variable is
      available.  */
-  maybe_gen_llsym (list);
+  if (list && loc_list->first->next)
+    gen_llsym (list);
+  else
+    maybe_gen_llsym (list);
 
   return list;
 }