http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58586
Tobias Burnus <burnus at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
Known to fail| |4.7.3, 4.8.1, 4.9.0
--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> ---
(The code compiles successfully with crayftn, pgf95 and ifort.)
(In reply to Vladimir Fuka from comment #0)
> 0x5b19b0 structure_alloc_comps
> ../../gcc-4.8-20130425/gcc/fortran/trans-array.c:7440
That's for der_type->name == "b" and debug_tree(decl) gives:
<indirect_ref 0x2aaaac2e9bc0 side-effects
arg 0 <call_expr 0x2aaaac1f6750
type <record_type 0x2aaaac2f75e8 b TI
Hence, decl_type == NULL - which will crash at:
7464 structure_alloc_comps (gfc_symbol * der_type, tree decl,
7465 tree dest, int rank, int purpose)
...
7487 decl_type = TREE_TYPE (decl);
(gdb)
7489 if ((POINTER_TYPE_P (decl_type) && rank != 0)
|| (TREE_CODE (decl_type) == REFERENCE_TYPE && rank == 0))
That's called from:
/* Allocated allocatable components of derived types must be
deallocated for non-variable scalars. Non-variable arrays are
dealt with in trans-array.c(gfc_conv_array_parameter). */
if (e && (e->ts.type == BT_DERIVED || e->ts.type == BT_CLASS)
&& e->ts.u.derived->attr.alloc_comp
&& !(e->symtree && e->symtree->n.sym->attr.pointer)
&& (e->expr_type != EXPR_VARIABLE && !e->rank))
{
...
tmp = gfc_deallocate_alloc_comp (e->ts.u.derived, tmp, parm_rank);
gfc_add_expr_to_block (&se->post, tmp);
}
which shows that a temporary is required.
