[flang-commits] [flang] [flang] Add parsing of DO CONCURRENT REDUCE clause (PR #92518)

[Peter Klausler via flang-commits]

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@@ -683,6 +683,89 @@ class DoContext {
     }
   }
 
+  void CheckReduce(
+      const parser::LocalitySpec::Reduce &reduce) const {
+    const parser::ReduceOperation &reduceOperation =
+        std::get<parser::ReduceOperation>(reduce.t);
+    // F'2023 C1132, reduction variables should have suitable intrinsic type
+    bool supported_identifier = true;
+    common::visit(
+        common::visitors{
+            [&](const parser::DefinedOperator &dOpr) {
+              const auto &intrinsicOp{
+                std::get<parser::DefinedOperator::IntrinsicOperator>(dOpr.u)
+              };
+              for (const Fortran::parser::Name &x :
+                       std::get<std::list<Fortran::parser::Name>>(reduce.t)) {
+                const auto *type{x.symbol->GetType()};
+                bool suitable_type = false;
+                switch (intrinsicOp) {
+                case parser::DefinedOperator::IntrinsicOperator::Add:
+                case parser::DefinedOperator::IntrinsicOperator::Multiply:
+                  if (type->IsNumeric(TypeCategory::Integer) ||
+                      type->IsNumeric(TypeCategory::Real) ||
+                      type->IsNumeric(TypeCategory::Complex)) {
+                    // TODO: check composite type.
----------------
klausler wrote:

What does "composite type" mean in this context?

https://github.com/llvm/llvm-project/pull/92518