[Bug fortran/127823] valgrind error in traverse_io_block(gfc_code*, bool*, gfc_code*) (fron tend-passes.cc:1239)

[anlauf at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127823

--- Comment #3 from Harald Anlauf <anlauf at gcc dot gnu.org> ---
Minimal reproducer:

program main
  implicit none
  real    :: r(5)
  integer :: k,j,i
  read(*,*) (((r(i),i=1,2),j=1,2),k=1,2)
end