[Bug fortran/102520] [10/11/12 Regression] ICE in expand_constructor, at fortran/array.c:1802

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102520

anlauf at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2021-09-28
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
                 CC|                            |anlauf at gcc dot gnu.org

--- Comment #1 from anlauf at gcc dot gnu.org ---
Confirmed.

Potential (nearly obvious) fix:

diff --git a/gcc/fortran/array.c b/gcc/fortran/array.c
index b858bada18a..8d66e009f66 100644
--- a/gcc/fortran/array.c
+++ b/gcc/fortran/array.c
@@ -1798,6 +1805,9 @@ expand_constructor (gfc_constructor_base base)

       e = c->expr;

+      if (e == NULL)
+       return false;
+
       if (empty_constructor)
        empty_ts = e->ts;