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From: "burnus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/100497] [OpenMP][nvptx]
 libgomp.c-c++-common/reduction-5.c - fails on some nvptx systems
Date: Tue, 11 May 2021 12:58:01 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100497

Tobias Burnus <burnus at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #10 from Tobias Burnus <burnus at gcc dot gnu.org> ---
Oddly, if one replaces

 #pragma omp target teams distribute parallel for reduction(||: orfc) map(o=
rfc)

by

 #pragma omp target map(orfc)
 {
  #pragma teams distribute parallel for reduction(||: orfc)
  for (int i=3D0; i < N; ++i)
    orfc =3D orfc || rf[i];
 }

the generated code vastly differs by not generating any 'omp teams distribu=
te
for' code but just the plain for loop, which works.

Shouldn't this both generate the same code? (The omp-lower dump shows 'omp
target num_teams(0)' for the combined statement and 'omp target num_teams(1=
)'
for the separate statement, whatever that clause means for a target directi=
ve.)=