[gcc(refs/users/mikael/heads/refactor_descriptor_v05)] Correction régression pr68864

[Mikael Morin]

https://gcc.gnu.org/g:7470b2f120badc9d947e51ad193f7de83880be98

commit 7470b2f120badc9d947e51ad193f7de83880be98
Author: Mikael Morin <mikael@gcc.gnu.org>
Date:   Wed Jun 4 16:12:40 2025 +0200

    Correction régression pr68864

Diff:
---
 gcc/fortran/trans-stmt.cc | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/gcc/fortran/trans-stmt.cc b/gcc/fortran/trans-stmt.cc
index 02d3e9e5a397..6949e00a3460 100644
--- a/gcc/fortran/trans-stmt.cc
+++ b/gcc/fortran/trans-stmt.cc
@@ -7838,7 +7838,12 @@ gfc_trans_deallocate (gfc_code *code)
 
 	  if (al->expr->ts.type == BT_CLASS)
 	    {
-	      gfc_reset_vptr (&se.pre, al->expr);
+	      if (is_subref_array (al->expr))
+		/* Finalisation code can create bogus
+		   array subreferences, ignore those.  */
+		;
+	      else
+		gfc_reset_vptr (&se.pre, al->expr);
 	      if (UNLIMITED_POLY (al->expr)
 		  || (al->expr->ts.type == BT_DERIVED
 		      && al->expr->ts.u.derived->attr.unlimited_polymorphic))