On Thu, Oct 31, 2019 at 01:55:26PM +0000, Andre Vieira (lists) wrote:
> I used to have this testcase in my patch when testing but forgot to include
> it in the patch I sent upstream. This testcase checks that a vmovaps isn't
> generated when vectorizing the loop. When I turn epilogue vectorization it
> seems to come back.
>
> @Jakub: This test has -fopenmp but I debuged through the testcase and
> loop->simdlen always seems to be 0 for any loop we analyze, so I don't think
> this is a conflict between my epilogue vectorization and openmp code paths
> in vect_analyze_loop.
The test certainly should have used -fopenmp-simd instead, it only uses
#pragma omp simd and no other OpenMP pragmas.
All the loops marked as omp simd are certainly marked with corresponding
simdlen during ompexp, not sure what happens afterwards.
Jakub
