https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83017
--- Comment #4 from rguenther at suse dot de <rguenther at suse dot de> --- On November 16, 2017 1:22:37 PM GMT+01:00, cfztol at hotmail dot com <gcc-bugzi...@gcc.gnu.org> wrote: >https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83017 > >--- Comment #3 from Christian Felter <cfztol at hotmail dot com> --- >Ultimately, I wanted to compute k like this > >k = permutation( j ) > >where permutation is a 1D array of integers (from 1 to 4, e.g. [ 1, 4, >2, 1, 3, >... etc] ). This would allow an easy way of parallelizing the so-called >"finite >element assembly procedure". But I guess, this case is even harder. >Clearly, I >must have misunderstood the requirements for DO CONCURRENT... Maybe >they could >be relaxed ? It's more an optimization pass issue or the frontend not communicating guarantees for dependencies downstream. Might be a bit tricky for function calls.
