[Bug fortran/64986] class_to_type_4.f90: valgrind error: Invalid read/write of size 8

["mikael at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64986

Mikael Morin <mikael at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mikael at gcc dot gnu.org

--- Comment #9 from Mikael Morin <mikael at gcc dot gnu.org> ---
The components are deallocated after the containing object.
Draft patch:

Index: trans-expr.c
===================================================================
--- trans-expr.c        (révision 225979)
+++ trans-expr.c        (copie de travail)
@@ -9241,7 +9241,7 @@ gfc_trans_assignment_1 (gfc_expr * expr1, gfc_expr
   if (scalar_to_array && dealloc)
     {
       tmp = gfc_deallocate_alloc_comp_no_caf (expr2->ts.u.derived, rse.expr,
0);
-      gfc_add_expr_to_block (&loop.post, tmp);
+      gfc_prepend_expr_to_block (&loop.post, tmp);
     }

   /* When assigning a character function result to a deferred-length variable,
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From: "eugene.zelenko at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/66918] Disable "inline function declared but never defined" warning
Date: Sat, 18 Jul 2015 13:42:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idf918

--- Comment #2 from Eugene Zelenko <eugene.zelenko at gmail dot com> ---
(In reply to Andrew Pinski from comment #1)
> Could you explain why you don't want to have this warning really.  This
> warning is telling you that the inline function is not defined  just like
> static functions.

I want this warning, but I need individual switch to turn it on/off and forcing
it to be warning/error. Just as any other warning.