[Bug libgomp/93515] New: OpenMP target teams distribute parallel for with defaultmap not mapping correctly

[jhdavis at udel dot edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93515

            Bug ID: 93515
           Summary: OpenMP target teams distribute parallel for with
                    defaultmap not mapping correctly
           Product: gcc
           Version: 9.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libgomp
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jhdavis at udel dot edu
                CC: jakub at gcc dot gnu.org
  Target Milestone: ---

Created attachment 47745
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47745&action=edit
Target teams distribute parallel for defaultmap reproducible

Hello,

This is a bug found by the SOLLVE team.

--- SUMMARY ---
When using defaultmap(tofrom:scalar) on a target teams distribute parallel for
construct, we are seeing a failure to map back changes to scalars made on the
device. See the attached reproducible. The test in out suite is availible here:
https://github.com/SOLLVE/sollve_vv/blob/new_test/test_target_teams_distribute_defaultmap.F90/tests/4.5/target_teams_distribute_parallel_for/test_target_teams_distribute_parallel_for_defaultmap.c

--- DETAILS ---
gfortran version: 9.2.0

System: x86_64-pc-linux-gnu

Config options: 
    ../gcc9.2/configure --enable-offload-targets=nvptx-none
--with-cuda-driver-include=/software/apps/cuda/9.2//include
--with-cuda-driver-lib=/software/apps/cuda/9.2//lib64 --disable-bootstrap
--disable-multilib --enable-languages=c,c++,fortran,lto
--prefix=/software/apps/gcc/9.2

No compiler output. Runtime output:
    Test returned 6 errors.

Command line to trigger bug:
    gcc -O3 -std=c99 -fopenmp -foffload="-lm" -lm ttdpf_defaultmap.c -o
ttdpf_defaultmap.c.o
    ./ttdpf_defaultmap.c.o

Best,

Josh Davis