//===-- CGOps.cpp -- FIR codegen operations -------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Coding style: https://mlir.llvm.org/getting_started/DeveloperGuide/
//
//===----------------------------------------------------------------------===//

#include "flang/Optimizer/CodeGen/CGOps.h"
#include "flang/Optimizer/Dialect/FIRDialect.h"
#include "flang/Optimizer/Dialect/FIROps.h"
#include "flang/Optimizer/Dialect/FIRType.h"

/// FIR codegen dialect constructor.
fir::FIRCodeGenDialect::FIRCodeGenDialect(mlir::MLIRContext *ctx)
    : mlir::Dialect("fircg", ctx, mlir::TypeID::get<FIRCodeGenDialect>()) {
  addOperations<
#define GET_OP_LIST
#include "flang/Optimizer/CodeGen/CGOps.cpp.inc"
      >();
}

// anchor the class vtable to this compilation unit
fir::FIRCodeGenDialect::~FIRCodeGenDialect() {
  // do nothing
}

#define GET_OP_CLASSES
#include "flang/Optimizer/CodeGen/CGOps.cpp.inc"

unsigned fir::cg::XEmboxOp::getOutRank() {
  if (getSlice().empty())
    return getRank();
  auto outRank = fir::SliceOp::getOutputRank(getSlice());
  assert(outRank >= 1);
  return outRank;
}

unsigned fir::cg::XReboxOp::getOutRank() {
  if (auto seqTy = mlir::dyn_cast<fir::SequenceType>(
          fir::dyn_cast_ptrOrBoxEleTy(getType())))
    return seqTy.getDimension();
  return 0;
}

unsigned fir::cg::XReboxOp::getRank() {
  if (auto seqTy = mlir::dyn_cast<fir::SequenceType>(
          fir::dyn_cast_ptrOrBoxEleTy(getBox().getType())))
    return seqTy.getDimension();
  return 0;
}

unsigned fir::cg::XArrayCoorOp::getRank() {
  auto memrefTy = getMemref().getType();
  if (mlir::isa<fir::BaseBoxType>(memrefTy))
    if (auto seqty = mlir::dyn_cast<fir::SequenceType>(
            fir::dyn_cast_ptrOrBoxEleTy(memrefTy)))
      return seqty.getDimension();
  return getShape().size();
}