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[flang] [acc] Adding allocation to the recipe of scalar allocatables #154643

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Merged
Renaud-K merged 1 commit into from
Aug 20, 2025
+8 −0
Merged

[flang] [acc] Adding allocation to the recipe of scalar allocatables #154643

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5 changes: 5 additions & 0 deletions flang/lib/Optimizer/OpenACC/Support/FIROpenACCTypeInterfaces.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -614,6 +614,11 @@ mlir::Value OpenACCMappableModel<Ty>::generatePrivateInit(
mlir::Type innerTy = fir::unwrapRefType(boxTy.getEleTy());
if (fir::isa_trivial(innerTy)) {
retVal = getDeclareOpForType(unwrappedTy).getBase();
mlir::Value allocatedScalar =
fir::AllocMemOp::create(builder, loc, innerTy);
mlir::Value firClass =
fir::EmboxOp::create(builder, loc, boxTy, allocatedScalar);
fir::StoreOp::create(builder, loc, firClass, retVal);
} else if (mlir::isa<fir::SequenceType>(innerTy)) {
hlfir::Entity source = hlfir::Entity{var};
auto [temp, cleanup] = hlfir::createTempFromMold(loc, firBuilder, source);
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3 changes: 3 additions & 0 deletions flang/test/Lower/OpenACC/acc-private.f90
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Expand Up @@ -95,6 +95,9 @@
! CHECK: ^bb0(%arg0: !fir.ref<!fir.box<!fir.heap<i32>>>):
! CHECK: %[[ALLOCA:.*]] = fir.alloca !fir.box<!fir.heap<i32>>
! CHECK: %[[DECLARE:.*]]:2 = hlfir.declare %[[ALLOCA]] {uniq_name = "acc.private.init"} : (!fir.ref<!fir.box<!fir.heap<i32>>>) -> (!fir.ref<!fir.box<!fir.heap<i32>>>, !fir.ref<!fir.box<!fir.heap<i32>>>)
! CHECK: %[[ALLOCMEM:.*]] = fir.allocmem i32
! CHECK: %[[BOX:.*]] = fir.embox %[[ALLOCMEM]] : (!fir.heap<i32>) -> !fir.box<!fir.heap<i32>>
! CHECK: fir.store %[[BOX]] to %[[DECLARE]]#0 : !fir.ref<!fir.box<!fir.heap<i32>>>
! CHECK: acc.yield %[[DECLARE]]#0 : !fir.ref<!fir.box<!fir.heap<i32>>>
! CHECK: }

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