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* [gcc(refs/users/aoliva/heads/testme)] varpool: do not add NULL vnodes to referenced
@ 2022-12-28  5:23 Alexandre Oliva
  0 siblings, 0 replies; only message in thread
From: Alexandre Oliva @ 2022-12-28  5:23 UTC (permalink / raw)
  To: gcc-cvs

https://gcc.gnu.org/g:e575665ae99f83788c1471f1e355922c3359e728

commit e575665ae99f83788c1471f1e355922c3359e728
Author: Alexandre Oliva <oliva@adacore.com>
Date:   Wed Dec 28 02:21:29 2022 -0300

    varpool: do not add NULL vnodes to referenced
    
    Avoid adding NULL vnodes to referenced tables.
    
    
    for  gcc/ChangeLog
    
            * varpool.c (symbol_table::remove_unreferenced_decls): Do not
            add NULL vnodes to referenced table.

Diff:
---
 gcc/varpool.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gcc/varpool.cc b/gcc/varpool.cc
index bfd17f1250c..ccbd6e50f4b 100644
--- a/gcc/varpool.cc
+++ b/gcc/varpool.cc
@@ -680,10 +680,12 @@ symbol_table::remove_unreferenced_decls (void)
 	    enqueue_node (vnode, &first);
 	  else
 	    {
-	      referenced.add (vnode);
+	      if (vnode)
+		referenced.add (vnode);
 	      while (vnode && vnode->alias && vnode->definition)
 		{
 		  vnode = vnode->get_alias_target ();
+		  gcc_checking_assert (vnode);
 	          referenced.add (vnode);
 		}
 	    }

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