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[OpenMP] Add PointerAssociateScalar to Cray Pointer used in the DSA #133232

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Merged
merged 6 commits into from
Mar 29, 2025
Merged

[OpenMP] Add PointerAssociateScalar to Cray Pointer used in the DSA #133232

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2033cea
[OpenMP] Add PointerAssociateScalar to Cray Pointer used in the DSA
Thirumalai-Shaktivel Mar 27, 2025
1cf40a0
Fix clang format
Thirumalai-Shaktivel Mar 27, 2025
bd64bc8
GetUltimate for CrayPointee
Thirumalai-Shaktivel Mar 28, 2025
c54ea08
Add tests
Thirumalai-Shaktivel Mar 28, 2025
b0d1885
Fix clang format
Thirumalai-Shaktivel Mar 28, 2025
b993f61
Update flang/test/Lower/OpenMP/cray-pointers02.f90
mjklemm Mar 29, 2025
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3 changes: 2 additions & 1 deletion flang/lib/Lower/ConvertExprToHLFIR.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -279,7 +279,8 @@ class HlfirDesignatorBuilder {
gen(const Fortran::evaluate::SymbolRef &symbolRef) {
if (std::optional<fir::FortranVariableOpInterface> varDef =
getSymMap().lookupVariableDefinition(symbolRef)) {
if (symbolRef->test(Fortran::semantics::Symbol::Flag::CrayPointee)) {
if (symbolRef.get().GetUltimate().test(
Fortran::semantics::Symbol::Flag::CrayPointee)) {
// The pointee is represented with a descriptor inheriting
// the shape and type parameters of the pointee.
// We have to update the base_addr to point to the current
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33 changes: 33 additions & 0 deletions flang/test/Lower/OpenMP/cray-pointers.f90
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@@ -0,0 +1,33 @@
! Test lowering of Cray pointee references.
! RUN: bbc -emit-hlfir -fopenmp %s -o - 2>&1 | FileCheck %s

module test_host_assoc_cray_pointer
! CHECK-LABEL: fir.global @_QMtest_host_assoc_cray_pointerEivar : i64
real*8 var(*)
! CHECK-LABEL: fir.global @_QMtest_host_assoc_cray_pointerEvar : !fir.array<?xf64>
pointer(ivar,var)

contains

! CHECK-LABEL: func.func @_QMtest_host_assoc_cray_pointerPset_cray_pointer()
subroutine set_cray_pointer
! CHECK: %[[ALLOCA:.*]] = fir.alloca !fir.box<!fir.ptr<!fir.array<?xf64>>>
! CHECK: %[[IVAR_ADDR:.*]] = fir.address_of(@_QMtest_host_assoc_cray_pointerEivar) : !fir.ref<i64>
! CHECK: %[[IVAR_DECL:.*]]:2 = hlfir.declare %[[IVAR_ADDR]] {uniq_name = "_QMtest_host_assoc_cray_pointerEivar"} : (!fir.ref<i64>) -> (!fir.ref<i64>, !fir.ref<i64>)
! CHECK: %[[VAR_DECL:.*]]:2 = hlfir.declare %[[ALLOCA]] {fortran_attrs = #fir.var_attrs<pointer>, uniq_name = "_QMtest_host_assoc_cray_pointerEvar"} : (!fir.ref<!fir.box<!fir.ptr<!fir.array<?xf64>>>>) -> (!fir.ref<!fir.box<!fir.ptr<!fir.array<?xf64>>>>, !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf64>>>>)
real*8 pointee(2)
pointee(1) = 42.0

ivar = loc(pointee)

!$omp parallel default(none) shared(ivar)
! CHECK: omp.parallel
! CHECK: %[[I_01:.*]] = fir.convert %[[IVAR_DECL]]#0 : (!fir.ref<i64>) -> !fir.ref<!fir.ptr<i64>>
! CHECK: %[[I_02:.*]] = fir.load %[[I_01]] : !fir.ref<!fir.ptr<i64>>
! CHECK: %[[I_03:.*]] = fir.convert %[[VAR_DECL]]#0 : (!fir.ref<!fir.box<!fir.ptr<!fir.array<?xf64>>>>) -> !fir.ref<!fir.box<none>>
! CHECK: %[[I_04:.*]] = fir.convert %[[I_02]] : (!fir.ptr<i64>) -> !fir.llvm_ptr<i8>
! CHECK: fir.call @_FortranAPointerAssociateScalar(%[[I_03]], %[[I_04]]) fastmath<contract> : (!fir.ref<!fir.box<none>>, !fir.llvm_ptr<i8>) -> ()
print *, var(1)
!$omp end parallel
end subroutine
end module
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