> > I guess it depends on what the Cilk+ spec says about reduction clause, and
> > from what I saw it is just too vague.
> > http://software.intel.com/sites/products/documentation/doclib/stdxe/2013
> > /composerxe/compiler/cpp-win/index.htm#GUID-44B505B6-01AF-4865-
> > 8DF4-AF851F51DDA1.htm
>
> Just an FYI, this is the language specification:
> https://www.cilkplus.org/sites/default/files/open_specifications/Intel_Cilk_plus_lang_spec_1.2.htm
That documents reduction clause by reference to OpenMP 4.0 spec.
The thing is that #pragma omp declare reduction isn't part of the
Cilk+ spec, so the question is if it is ok to combine
#pragma omp declare reduction (foo: int: omp_out += omp_in)
from OpenMP 4.0 together with Cilk+
#pragma simd reduction(foo: var)
Perhaps it is, at which point Aldy doesn't have anything to do there.
Jakub
