http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57445
Bug ID: 57445
Summary: [4.8/4.9 Regression][OOP] ICE in
gfc_conv_class_to_class - for OPTIONAL polymorphic
array
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: burnus at gcc dot gnu.org
Found when working on FINALization. It compiles with GCC 4.7 but fails with GCC
4.8 and 4.9.
The following ICEs when passing an optional polymorphic array as argument to an
optional dummy argument:
finalize_12.f90:12:0: internal compiler error: in gfc_conv_class_to_class, at
fortran/trans-expr.c:740
call foo_opt(xca=xca)!, xc, xaa, xca)
^
0x63c6f9 gfc_conv_class_to_class(gfc_se*, gfc_expr*, gfc_typespec, bool, bool,
bool, bool)
../../gcc/fortran/trans-expr.c:740
0x637b72 gfc_conv_procedure_call(gfc_se*, gfc_symbol*, gfc_actual_arglist*,
gfc_expr*, vec<tree_node*, va_gc, vl_embed>*)
../../gcc/fortran/trans-expr.c:4423
module m
implicit none
type t
integer :: i
end type t
contains
subroutine opt(xa, xc, xaa, xca)
type(t), allocatable, intent(out), optional :: xa
class(t), allocatable, intent(out), optional :: xc
type(t), allocatable, intent(out), optional :: xaa(:)
class(t), allocatable, intent(out), optional :: xca(:)
call foo_opt(xca=xca)!, xc, xaa, xca)
end subroutine opt
subroutine foo_opt(xa, xc, xaa, xca)
type(t), allocatable, intent(out), optional :: xa
class(t), allocatable, intent(out), optional :: xc
type(t), allocatable, intent(out), optional :: xaa(:)
class(t), allocatable, intent(out), optional :: xca(:)
end subroutine foo_opt
end module m
