[Bug fortran/103715] [11/12/13/14 Regression] ICE in gfc_find_gsymbol, at fortran/symbol.c:4301 since r9-3803-ga5fbc2f36a291cbe

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103715

anlauf at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |anlauf at gcc dot 
gnu.org
             Status|NEW                         |ASSIGNED
                 CC|                            |anlauf at gcc dot gnu.org

--- Comment #5 from anlauf at gcc dot gnu.org ---
Obvious fix for the invalid read (untested):

diff --git a/gcc/fortran/frontend-passes.cc b/gcc/fortran/frontend-passes.cc
index 06dfa1a3232..3c06018fdbb 100644
--- a/gcc/fortran/frontend-passes.cc
+++ b/gcc/fortran/frontend-passes.cc
@@ -5807,6 +5807,9 @@ check_externals_expr (gfc_expr **ep, int *walk_subtrees
ATTRIBUTE_UNUSED,
   if (e->expr_type != EXPR_FUNCTION)
     return 0;

+  if (e->symtree && e->symtree->n.sym->attr.subroutine)
+    return 0;
+
   sym = e->value.function.esym;
   if (sym == NULL)
     return 0;