[Bug fortran/53029] missed optimization in internal read (without implied-do-loop)

[jvdelisle at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53029

--- Comment #8 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
Fixed on trunk. If this is important enough we could backport to 7. Any
opinions?