Hi,
this patch fixes and ICE in symtab_node::verify_base when there is a missing
entry in the symol table - bug I noticed while debugging the patch.
Second fix makes symtab_node::noninterposable_alias to skip all transaprent
aliases because these can not change visibility. (this is needed because the
way we represent weakrefs as a static variable while it really inherits 
visibility
of its target that may be unknown)

Bootstrapped/regtested x86_64-linux, will commit it shortly.

        * symtab.c (symtab_node::verify_base): Fix thinko in a conditional.
        (symtab_node::noninterposable_alias): Do not accept transparent
        aliases.
Index: symtab.c
===================================================================
--- symtab.c    (revision 231425)
+++ symtab.c    (working copy)
@@ -1005,7 +1005,7 @@ symtab_node::verify_base (void)
        }
       if (!hashed_node
          && !(is_a <varpool_node *> (this)
-              || DECL_HARD_REGISTER (decl)))
+              && DECL_HARD_REGISTER (decl)))
        {
           error ("node not found in symtab assembler name hash");
           error_found = true;
@@ -1637,7 +1637,7 @@ symtab_node::resolve_alias (symtab_node
 bool
 symtab_node::noninterposable_alias (symtab_node *node, void *data)
 {
-  if (decl_binds_to_current_def_p (node->decl))
+  if (!node->transparent_alias && decl_binds_to_current_def_p (node->decl))
     {
       symtab_node *fn = node->ultimate_alias_target ();
 

Reply via email to