File: TestOpenACCInterfaces.cpp

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//===- TestOpenACCInterfaces.cpp ------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "mlir/Dialect/OpenACC/OpenACC.h"
#include "mlir/IR/Builders.h"
#include "mlir/IR/BuiltinOps.h"
#include "mlir/Pass/Pass.h"
#include "mlir/Support/LLVM.h"
#include "flang/Optimizer/Support/DataLayout.h"

using namespace mlir;

namespace {

struct TestFIROpenACCInterfaces
    : public PassWrapper<TestFIROpenACCInterfaces, OperationPass<ModuleOp>> {
  MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestFIROpenACCInterfaces)

  StringRef getArgument() const final { return "test-fir-openacc-interfaces"; }
  StringRef getDescription() const final {
    return "Test FIR implementation of the OpenACC interfaces.";
  }
  void runOnOperation() override {
    mlir::ModuleOp mod = getOperation();
    auto datalayout =
        fir::support::getOrSetDataLayout(mod, /*allowDefaultLayout=*/true);
    mlir::OpBuilder builder(mod);
    getOperation().walk([&](Operation *op) {
      if (isa<ACC_DATA_ENTRY_OPS>(op)) {
        Type typeOfVar = acc::getVar(op).getType();
        llvm::errs() << "Visiting: " << *op << "\n";
        auto mappableTy = dyn_cast_if_present<acc::MappableType>(typeOfVar);
        if (!mappableTy) {
          mappableTy =
              dyn_cast_if_present<acc::MappableType>(acc::getVarType(op));
        }
        if (mappableTy) {
          llvm::errs() << "\tMappable: " << mappableTy << "\n";
          if (datalayout.has_value()) {
            auto size = mappableTy.getSizeInBytes(
                acc::getVar(op), acc::getBounds(op), datalayout.value());
            if (size) {
              llvm::errs() << "\t\tSize: " << size.value() << "\n";
            }
            auto offset = mappableTy.getOffsetInBytes(
                acc::getVar(op), acc::getBounds(op), datalayout.value());
            if (offset) {
              llvm::errs() << "\t\tOffset: " << offset.value() << "\n";
            }
          }

          builder.setInsertionPoint(op);
          auto bounds = mappableTy.generateAccBounds(acc::getVar(op), builder);
          if (!bounds.empty()) {
            for (auto [idx, bound] : llvm::enumerate(bounds)) {
              llvm::errs() << "\t\tBound[" << idx << "]: " << bound << "\n";
            }
          }
        } else {
          assert(acc::isPointerLikeType(typeOfVar) &&
              "expected to be pointer-like");
          llvm::errs() << "\tPointer-like: " << typeOfVar << "\n";
        }
      }
    });
  }
};
} // namespace

//===----------------------------------------------------------------------===//
// Pass Registration
//===----------------------------------------------------------------------===//

namespace fir {
namespace test {
void registerTestFIROpenACCInterfacesPass() {
  PassRegistration<TestFIROpenACCInterfaces>();
}
} // namespace test
} // namespace fir