[Bug fortran/45183] New: [4.6 Regression] FAIL: gfortran.dg/derived_constructor_char_1.f90

[Bug fortran/45183] New: [4.6 Regression] FAIL: gfortran.dg/derived_constructor_char_1.f90

[hjl dot tools at gmail dot com]

On Linux/ia32, revision 162863 gave

FAIL: gfortran.dg/derived_constructor_char_1.f90  -O  (test for excess errors)
FAIL: gfortran.dg/derived_constructor_char_1.f90  -O  scan-tree-dump-times
original "five = ..txt=..AbCdE., .ZyXwV...;" 1: dump file does not exist
FAIL: gfortran.dg/derived_constructor_char_1.f90  -O  scan-tree-dump-times
original "four = ..txt=..ABC  ., .ZYX  ...;" 1: dump file does not exist
FAIL: gfortran.dg/derived_constructor_char_1.f90  -O  scan-tree-dump-times
original "one = ..txt=..12345., .67890...;" 1: dump file does not exist
FAIL: gfortran.dg/derived_constructor_char_1.f90  -O  scan-tree-dump-times
original "six = ..txt=..aBcDe., .zYxWv...;" 1: dump file does not exist
FAIL: gfortran.dg/derived_constructor_char_1.f90  -O  scan-tree-dump-times
original "three = ..txt=..12345., .abcde...;" 1: dump file does not exist
FAIL: gfortran.dg/derived_constructor_char_1.f90  -O  scan-tree-dump-times
original "two = ..txt=..123  ., .678  ...;" 1: dump file does not exist

Revision 162860 is OK


-- 
           Summary: [4.6 Regression] FAIL:
                    gfortran.dg/derived_constructor_char_1.f90
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hjl dot tools at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45183

[Bug fortran/45183] [4.6 Regression] FAIL: gfortran.dg/derived_constructor_char_1.f90

[burnus at gcc dot gnu dot org]

------- Comment #1 from burnus at gcc dot gnu dot org  2010-08-04 17:39 -------
PATCH - lightly tested. Now regtesting.

Index: gcc/fortran/resolve.c
===================================================================
--- gcc/fortran/resolve.c       (Revision 162868)
+++ gcc/fortran/resolve.c       (Arbeitskopie)
@@ -936,11 +936,26 @@ resolve_structure_cons (gfc_expr *expr)
              p = gfc_constructor_first (cons->expr->value.constructor);
              if (cons->expr->ts.u.cl != p->expr->ts.u.cl)
                {
-                 gfc_free_expr (cons->expr->ts.u.cl->length);
-                 gfc_free (cons->expr->ts.u.cl);
+                 gfc_charlen *cl, *cl2;
+
+                 cl2 = NULL;
+                 for (cl = gfc_current_ns->cl_list; cl; cl = cl->next)
+                   {
+                     if (cl == cons->expr->ts.u.cl)
+                       break;
+                     cl2 = cl;
+                   }
+
+                 gcc_assert (cl);
+
+                 if (cl2)
+                   cl2->next = cl->next;
+
+                 gfc_free_expr (cl->length);
+                 gfc_free (cl);
                }

-             cons->expr->ts.u.cl = gfc_get_charlen ();
+             cons->expr->ts.u.cl = gfc_new_charlen (gfc_current_ns, NULL);
              cons->expr->ts.u.cl->length_from_typespec = true;
              cons->expr->ts.u.cl->length = gfc_copy_expr
(comp->ts.u.cl->length);
              gfc_resolve_character_array_constructor (cons->expr);


-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-08-04 17:39:41
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45183

[Bug fortran/45183] [4.6 Regression] FAIL: gfortran.dg/derived_constructor_char_1.f90

[kargl at gcc dot gnu dot org]

------- Comment #2 from kargl at gcc dot gnu dot org  2010-08-04 18:09 -------
(In reply to comment #1)
> PATCH - lightly tested. Now regtesting.
> 
> Index: gcc/fortran/resolve.c
> ===================================================================
> --- gcc/fortran/resolve.c       (Revision 162868)
> +++ gcc/fortran/resolve.c       (Arbeitskopie)
> @@ -936,11 +936,26 @@ resolve_structure_cons (gfc_expr *expr)
>               p = gfc_constructor_first (cons->expr->value.constructor);
>               if (cons->expr->ts.u.cl != p->expr->ts.u.cl)
>                 {
> -                 gfc_free_expr (cons->expr->ts.u.cl->length);
> -                 gfc_free (cons->expr->ts.u.cl);
> +                 gfc_charlen *cl, *cl2;
> +
> +                 cl2 = NULL;
> +                 for (cl = gfc_current_ns->cl_list; cl; cl = cl->next)
> +                   {
> +                     if (cl == cons->expr->ts.u.cl)
> +                       break;
> +                     cl2 = cl;
> +                   }
> +
> +                 gcc_assert (cl);
> +
> +                 if (cl2)
> +                   cl2->next = cl->next;
> +
> +                 gfc_free_expr (cl->length);
> +                 gfc_free (cl);
>                 }
> 
> -             cons->expr->ts.u.cl = gfc_get_charlen ();
> +             cons->expr->ts.u.cl = gfc_new_charlen (gfc_current_ns, NULL);
>               cons->expr->ts.u.cl->length_from_typespec = true;
>               cons->expr->ts.u.cl->length = gfc_copy_expr
> (comp->ts.u.cl->length);
>               gfc_resolve_character_array_constructor (cons->expr);
> 

I must be missing something here.  What does cl2 do in the above
patch?  You set it, but it is never used.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45183

[Bug fortran/45183] [4.6 Regression] FAIL: gfortran.dg/derived_constructor_char_1.f90

[kargl at gcc dot gnu dot org]

------- Comment #3 from kargl at gcc dot gnu dot org  2010-08-04 18:13 -------
>
> I must be missing something here.  What does cl2 do in the above
> patch?  You set it, but it is never used.
> 

Nevermind, I understand what the code does.  I can't even claim
that I haven't had enough coffee this morning. :(


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45183

[Bug fortran/45183] [4.6 Regression] FAIL: gfortran.dg/derived_constructor_char_1.f90

[burnus at gcc dot gnu dot org]

------- Comment #5 from burnus at gcc dot gnu dot org  2010-08-04 18:50 -------
FIXED. Thanks for the timely report.


-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45183

[Bug fortran/45183] [4.6 Regression] FAIL: gfortran.dg/derived_constructor_char_1.f90

[burnus at gcc dot gnu dot org]

------- Comment #4 from burnus at gcc dot gnu dot org  2010-08-04 18:49 -------
Subject: Bug 45183

Author: burnus
Date: Wed Aug  4 18:49:23 2010
New Revision: 162871

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=162871
Log:
2010-08-04  Tobias Burnus  <burnus@net-b.de>

        PR fortran/45183
        PR fortran/44857
        * resolve.c (resolve_structure_cons): Fix
        freeing of charlen.


Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/resolve.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45183