[patch, fortran] Handling of .and. and .or. expressions

[Jakub Jelinek]

On Wed, Jun 27, 2018 at 09:35:59AM +0200, Janus Weil wrote:
> > and have some non-default aggressive
> > optimization option that would optimize away in the FE impure function calls
> 
> IMHO an optimization to remove functions calls is unproblematic only
> for pure functions, but as long as it is guarded by a non-default

For pure functions, which are hopefully marked as ECF_PURE for the
middle-end the middle-end can already optimize away those calls where the
result isn't needed.

> optimization flag, I'm perfectly happy with optimizing away stuff with
> side effects as well.

	Jakub