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[flang][cuda][NFC] Add tests for device functions in cuf kernels #125882

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Merged
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Feb 5, 2025
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[flang][cuda][NFC] Add tests for device functions in cuf kernels #125882

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14 changes: 14 additions & 0 deletions flang/test/Lower/CUDA/cuda-device-proc.cuf
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Original file line number Diff line number Diff line change
Expand Up @@ -87,3 +87,17 @@ end
! CHECK: func.func private @llvm.nvvm.barrier0.and(i32) -> i32
! CHECK: func.func private @llvm.nvvm.barrier0.popc(i32) -> i32
! CHECK: func.func private @llvm.nvvm.barrier0.or(i32) -> i32

subroutine host1()
integer, device :: a(32)
integer :: i, j

block; use cudadevice
!$cuf kernel do(1) <<<*,32>>>
do i = 1, 32
a(i) = a(i) * 2.0
call syncthreads()
a(i) = a(i) + a(j) - 34.0
end do
end block
end
13 changes: 13 additions & 0 deletions flang/test/Semantics/cuf09.cuf
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Expand Up @@ -192,3 +192,16 @@ program main
enddo
enddo
end

subroutine host1()
integer, device :: a(32)
integer :: i, j

!$cuf kernel do(1) <<<*,32>>>
do i = 1, 32
a(i) = a(i) * 2.0
!ERROR: 'syncthreads' may not be called in device code
call syncthreads() ! missing explicit use cudadevice
a(i) = a(i) + a(j) - 34.0
end do
end