http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48706
janus at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2011.05.18 21:49:33 Summary|[OOP] ICE (segfault) with |Type extension inside |TBP |subroutine Ever Confirmed|0 |1 --- Comment #1 from janus at gcc dot gnu.org 2011-05-18 21:49:33 UTC --- Reduced (non-polymorphic) test case: module mod_diff_01 implicit none type :: foo end type contains subroutine create_ext() type, extends(foo) :: foo_e end type foo_e end subroutine create_ext end module mod_diff_01 program diff_01 use mod_diff_01 implicit none call create_ext() end program diff_01 Apparently the segfault is simply due to the type extension happening inside a subroutine (which is rather unusual but perfectly valid, I think).