[Bug fortran/41608] New: ICE with CLASS and invalid code

[Bug fortran/41608] New: ICE with CLASS and invalid code

[burnus at gcc dot gnu dot org]

class(t1), pointer :: c  ! missing TYPE decl
  select type (c)
  type is (t1)
  end select
end

f951: internal compiler error: in find_typebound_proc_uop, at
fortran/symbol.c:4657


-- 
           Summary: ICE with CLASS and invalid code
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: burnus at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41608

[Bug fortran/41608] ICE with CLASS and invalid code

[janus at gcc dot gnu dot org]

------- Comment #1 from janus at gcc dot gnu dot org  2009-10-07 21:58 -------
The fix:

Index: gcc/fortran/decl.c
===================================================================
--- gcc/fortran/decl.c  (Revision 152525)
+++ gcc/fortran/decl.c  (Arbeitskopie)
@@ -3751,7 +3751,8 @@ gfc_match_data_decl (void)
   if (m != MATCH_YES)
     return m;

-  if (current_ts.type == BT_DERIVED && gfc_current_state () != COMP_DERIVED)
+  if ((current_ts.type == BT_DERIVED || current_ts.type == BT_CLASS)
+      && gfc_current_state () != COMP_DERIVED)
     {
       sym = gfc_use_derived (current_ts.u.derived);

@@ -3771,7 +3772,8 @@ gfc_match_data_decl (void)
       goto cleanup;
     }

-  if (current_ts.type == BT_DERIVED && current_ts.u.derived->components ==
NULL
+  if ((current_ts.type == BT_DERIVED || current_ts.type == BT_CLASS)
+      && current_ts.u.derived->components == NULL
       && !current_ts.u.derived->attr.zero_comp)
     {


-- 

janus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |janus at gcc dot gnu dot org
                   |dot org                     |
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-10-07 21:58:53
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41608

[Bug fortran/41608] ICE with CLASS and invalid code

[pault at gcc dot gnu dot org]

------- Comment #2 from pault at gcc dot gnu dot org  2009-10-17 18:09 -------
Subject: Bug 41608

Author: pault
Date: Sat Oct 17 18:09:25 2009
New Revision: 152955

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=152955
Log:
2009-10-17  Janus Weil  <janus@gcc.gnu.org>
            Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/41608
        * decl.c (gfc_match_data_decl): Add BT_CLASS for undefined type
        and empty type errors.
        * parse.c (gfc_build_block_ns): Only set recursive if parent ns
        has a proc_name.

        PR fortran/41629
        PR fortran/41618
        PR fortran/41587
        * gfortran.h : Add class_ok bitfield to symbol_attr.
        * decl.c (build_sym): Set attr.class_ok if dummy, pointer or
        allocatable.
        (build_struct): Use gfc_try 't' to carry errors past the call
        to encapsulate_class_symbol.
        (attr_decl1): For a CLASS object, apply the new attribute to
        the data component.
        * match.c (gfc_match_select_type): Set attr.class_ok for an
        assigned selector.
        * resolve.c (resolve_fl_variable_derived): Check a CLASS object
        is dummy, pointer or allocatable by testing the class_ok and
        the use_assoc attribute.

2009-10-17  Janus Weil  <janus@gcc.gnu.org>
            Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/41629
        * gfortran.dg/class_6.f90: New test.

        PR fortran/41608
        PR fortran/41587
        * gfortran.dg/class_7.f90: New test.

        PR fortran/41618
        * gfortran.dg/class_8.f90: New test.


Added:
    trunk/gcc/testsuite/gfortran.dg/class_6.f03
    trunk/gcc/testsuite/gfortran.dg/class_7.f03
    trunk/gcc/testsuite/gfortran.dg/class_8.f03
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/decl.c
    trunk/gcc/fortran/gfortran.h
    trunk/gcc/fortran/match.c
    trunk/gcc/fortran/parse.c
    trunk/gcc/fortran/resolve.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41608

[Bug fortran/41608] ICE with CLASS and invalid code

[pault at gcc dot gnu dot org]

------- Comment #3 from pault at gcc dot gnu dot org  2009-10-18 12:26 -------
Fixed on trunk.

Thanks for the report!

Paul


-- 

pault at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41608