[flang-commits] [flang] [flang] Generate fir.do_loop reduce from DO CONCURRENT REDUCE clause (PR #94718)

[Valentin Clement バレンタイン クレメン via flang-commits]

================
@@ -1741,6 +1744,36 @@ class FirConverter : public Fortran::lower::AbstractConverter {
     builder->create<fir::UnreachableOp>(loc);
   }
 
+  fir::ReduceOperationEnum
+  getReduceOperationEnum(const Fortran::parser::ReductionOperator &rOpr) {
+    switch (rOpr.v) {
+    case Fortran::parser::ReductionOperator::Operator::Plus:
+      return fir::ReduceOperationEnum::Add;
+    case Fortran::parser::ReductionOperator::Operator::Multiply:
+      return fir::ReduceOperationEnum::Multiply;
+    case Fortran::parser::ReductionOperator::Operator::And:
+      return fir::ReduceOperationEnum::AND;
+    case Fortran::parser::ReductionOperator::Operator::Or:
+      return fir::ReduceOperationEnum::OR;
+    case Fortran::parser::ReductionOperator::Operator::Eqv:
+      return fir::ReduceOperationEnum::EQV;
+    case Fortran::parser::ReductionOperator::Operator::Neqv:
+      return fir::ReduceOperationEnum::NEQV;
+    case Fortran::parser::ReductionOperator::Operator::Max:
+      return fir::ReduceOperationEnum::MAX;
+    case Fortran::parser::ReductionOperator::Operator::Min:
+      return fir::ReduceOperationEnum::MIN;
+    case Fortran::parser::ReductionOperator::Operator::Iand:
+      return fir::ReduceOperationEnum::IAND;
+    case Fortran::parser::ReductionOperator::Operator::Ior:
+      return fir::ReduceOperationEnum::IOR;
+    case Fortran::parser::ReductionOperator::Operator::Ieor:
+      return fir::ReduceOperationEnum::EIOR;
+    }
+    fir::emitFatalError(toLocation(), "illegal reduction operator");
+    return fir::ReduceOperationEnum::Add;
----------------
clementval wrote:

You could use llvm_unreachable if you want to disable the warning

https://github.com/llvm/llvm-project/pull/94718