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Diffstat (limited to 'libgomp/testsuite/libgomp.oacc-fortran/pr70643.f90')
-rw-r--r-- | libgomp/testsuite/libgomp.oacc-fortran/pr70643.f90 | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/libgomp/testsuite/libgomp.oacc-fortran/pr70643.f90 b/libgomp/testsuite/libgomp.oacc-fortran/pr70643.f90 new file mode 100644 index 00000000000..7c2e5eef904 --- /dev/null +++ b/libgomp/testsuite/libgomp.oacc-fortran/pr70643.f90 @@ -0,0 +1,51 @@ +MODULE reduction_test + +CONTAINS + +SUBROUTINE reduction_kernel(x_min,x_max,y_min,y_max,arr,sum) + + IMPLICIT NONE + + INTEGER :: x_min,x_max,y_min,y_max + REAL(KIND=8), DIMENSION(x_min-2:x_max+2,y_min-2:y_max+2) :: arr + REAL(KIND=8) :: sum + + INTEGER :: j,k + +!$ACC DATA PRESENT(arr) COPY(sum) +!$ACC PARALLEL LOOP REDUCTION(+ : sum) + DO k=y_min,y_max + DO j=x_min,x_max + sum=sum+arr(j,k) + ENDDO + ENDDO +!$ACC END PARALLEL LOOP +!$ACC END DATA +END SUBROUTINE reduction_kernel + +END MODULE reduction_test + +program main + use reduction_test + + integer :: x_min,x_max,y_min,y_max + real(kind=8), dimension(1:10,1:10) :: arr + real(kind=8) :: sum + + x_min = 1 + x_max = 2 + y_min = 1 + y_max = 2 + + arr(:,:) = 1.0 + + sum = 0.0 + + !$acc data copy(arr) + + call reduction_kernel(x_min,x_max,y_min,y_max,arr,sum) + + !$acc end data + + if (sum .ne. 4.0) call abort +end program |