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[OpenACC][CIR] copyin lowering for func-local- declare #169336

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Merged
merged 1 commit into from
Nov 24, 2025
+224 −9
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[OpenACC][CIR] copyin lowering for func-local- declare #169336

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24 changes: 18 additions & 6 deletions clang/lib/CIR/CodeGen/CIRGenDeclOpenACC.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -28,12 +28,21 @@ struct OpenACCDeclareCleanup final : EHScopeStack::Cleanup {

template <typename OutTy, typename InTy>
void createOutOp(CIRGenFunction &cgf, InTy inOp) {
auto outOp =
OutTy::create(cgf.getBuilder(), inOp.getLoc(), inOp, inOp.getVarPtr(),
inOp.getStructured(), inOp.getImplicit(),
llvm::Twine(inOp.getNameAttr()), inOp.getBounds());
outOp.setDataClause(inOp.getDataClause());
outOp.setModifiers(inOp.getModifiers());
if constexpr (std::is_same_v<OutTy, mlir::acc::DeleteOp>) {
auto outOp =
OutTy::create(cgf.getBuilder(), inOp.getLoc(), inOp,
inOp.getStructured(), inOp.getImplicit(),
llvm::Twine(inOp.getNameAttr()), inOp.getBounds());
outOp.setDataClause(inOp.getDataClause());
outOp.setModifiers(inOp.getModifiers());
} else {
auto outOp =
OutTy::create(cgf.getBuilder(), inOp.getLoc(), inOp, inOp.getVarPtr(),
inOp.getStructured(), inOp.getImplicit(),
llvm::Twine(inOp.getNameAttr()), inOp.getBounds());
outOp.setDataClause(inOp.getDataClause());
outOp.setModifiers(inOp.getModifiers());
}
}

void emit(CIRGenFunction &cgf) override {
Expand All @@ -52,6 +61,9 @@ struct OpenACCDeclareCleanup final : EHScopeStack::Cleanup {
case mlir::acc::DataClause::acc_copy:
createOutOp<mlir::acc::CopyoutOp>(cgf, copyin);
break;
case mlir::acc::DataClause::acc_copyin:
createOutOp<mlir::acc::DeleteOp>(cgf, copyin);
break;
}
} else if (val.getDefiningOp<mlir::acc::DeclareLinkOp>()) {
// Link has no exit clauses, and shouldn't be copied.
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10 changes: 7 additions & 3 deletions clang/lib/CIR/CodeGen/CIRGenOpenACCClause.cpp
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Expand Up @@ -826,12 +826,16 @@ class OpenACCClauseCIREmitter final
addDataOperand<mlir::acc::CopyinOp>(
var, mlir::acc::DataClause::acc_copyin, clause.getModifierList(),
/*structured=*/false, /*implicit=*/false);
} else if constexpr (isOneOfTypes<OpTy, mlir::acc::DeclareEnterOp>) {
for (const Expr *var : clause.getVarList())
addDataOperand<mlir::acc::CopyinOp>(
var, mlir::acc::DataClause::acc_copyin, clause.getModifierList(),
/*structured=*/true,
/*implicit=*/false);
} else if constexpr (isCombinedType<OpTy>) {
applyToComputeOp(clause);
} else {
// TODO: When we've implemented this for everything, switch this to an
// unreachable. declare construct remains.
return clauseNotImplemented(clause);
llvm_unreachable("Unknown construct kind in VisitCopyInClause");
}
}

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