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[flang][cuda] Do not consider function result as host array #164669

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Merged
merged 1 commit into from
Oct 22, 2025
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[flang][cuda] Do not consider function result as host array #164669

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3 changes: 3 additions & 0 deletions flang/lib/Semantics/check-cuda.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -131,6 +131,9 @@ struct FindHostArray
return (*this)(x.base());
}
Result operator()(const Symbol &symbol) const {
if (symbol.IsFuncResult()) {
return nullptr;
}
if (const auto *details{
symbol.GetUltimate().detailsIf<semantics::ObjectEntityDetails>()}) {
if (details->IsArray() &&
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6 changes: 6 additions & 0 deletions flang/test/Semantics/cuf09.cuf
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Expand Up @@ -36,6 +36,12 @@ module m
if (i .le. N) a(i) = m(i)
end subroutine

attributes(device) function devfct(r1, r2) result(res)
real(4), intent(in) :: r1(3), r2(3)
real(4) :: res(3)
res = r1 - r2 ! Do not error on function result
end function

attributes(global) subroutine hostparameter(a)
integer :: a(*)
i = threadIdx%x
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