[Bug target/102349] [12 Regression] crash in rs6000_xcoff_encode_section_info since r12-446-g8b5b814d51ff73bc739c0c037ae18df07acf2d96

[dje at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102349

--- Comment #8 from David Edelsohn <dje at gcc dot gnu.org> ---
This needs an additional adjustment.  The encoding decoration needs to be
applied if the decl isn't an alias.  That means both a null summary *OR* the
decl is not explicitly an alias.

I'm proposing the following:

diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index d0830a95027..ad81dfb316d 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -21728,8 +21728,8 @@ rs6000_xcoff_encode_section_info (tree decl, rtx rtl,
in
t first)
   if (decl
       && DECL_P (decl)
       && VAR_OR_FUNCTION_DECL_P (decl)
-      && symtab_node::get (decl) != NULL
-      && symtab_node::get (decl)->alias == 0
+      && (symtab_node::get (decl) == NULL
+         || symtab_node::get (decl)->alias == 0)
       && symname[strlen (symname) - 1] != ']')
     {
       const char *smclass = NULL;