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Re: [Patch] PR fortran/78260 - OpenACC + OpenMP target fixes - esp. with function-result variables

On Fri, Sep 20, 2019 at 05:47:59PM +0200, Tobias Burnus wrote:
> (A) For OpenACC, only, it fixes the is-variable check. That check missed 
> to reject module names (as noted in the PR) but as my testing showed, it 
> also wrongly rejected function-result variables. (i.e. where the 
> return-value variable has the same name as the function). - For the 
> invalid input of the PR, gfortran gave an ICE in the gimplifier.
> (B) Using such function-result variables did not work properly. OpenACC 
> used in both cases (see pr78260-2.f90) the function name – and at least 
> one variant failed with an ICE.
> OpenMP used the result variable for "target data map" but not for 
> "target update". Additionally "task depend" had the same issue.
> Bootstrapped and regtested on x86_64-gnu-linux w/o accelerator.
> I intent to build/regtest it also applied to the OG9 (openacc-gnu-9) 
> branch and run the test case with actual nvptx+AMDGCN offloading, but I 
> have not done so, yet.
> OK for the trunk?

Patch looks ok to me, but I'll defer to Jakub (opemp) and/or
Thomas Schwinge (openacc).

PS: Hopefully, Welcome back!


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