github.com/johnnyeven/libtools@v0.0.0-20191126065708-61829c1adf46/third_party/mlir/lib/Target/LLVMIR/ConvertToLLVMIR.cpp (about)

     1  //===- ConvertToLLVMIR.cpp - MLIR to LLVM IR conversion -------------------===//
     2  //
     3  // Copyright 2019 The MLIR Authors.
     4  //
     5  // Licensed under the Apache License, Version 2.0 (the "License");
     6  // you may not use this file except in compliance with the License.
     7  // You may obtain a copy of the License at
     8  //
     9  //   http://www.apache.org/licenses/LICENSE-2.0
    10  //
    11  // Unless required by applicable law or agreed to in writing, software
    12  // distributed under the License is distributed on an "AS IS" BASIS,
    13  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14  // See the License for the specific language governing permissions and
    15  // limitations under the License.
    16  // =============================================================================
    17  //
    18  // This file implements a translation between the MLIR LLVM dialect and LLVM IR.
    19  //
    20  //===----------------------------------------------------------------------===//
    21  
    22  #include "mlir/Target/LLVMIR.h"
    23  
    24  #include "mlir/Support/FileUtilities.h"
    25  #include "mlir/Target/LLVMIR/ModuleTranslation.h"
    26  #include "mlir/Translation.h"
    27  
    28  #include "llvm/ADT/StringRef.h"
    29  #include "llvm/IR/Module.h"
    30  #include "llvm/Support/ToolOutputFile.h"
    31  
    32  using namespace mlir;
    33  
    34  std::unique_ptr<llvm::Module> mlir::translateModuleToLLVMIR(ModuleOp m) {
    35    return LLVM::ModuleTranslation::translateModule<>(m);
    36  }
    37  
    38  static TranslateFromMLIRRegistration registration(
    39      "mlir-to-llvmir", [](ModuleOp module, llvm::StringRef outputFilename) {
    40        if (!module)
    41          return failure();
    42  
    43        auto llvmModule = LLVM::ModuleTranslation::translateModule<>(module);
    44        if (!llvmModule)
    45          return failure();
    46  
    47        auto file = openOutputFile(outputFilename);
    48        if (!file)
    49          return failure();
    50  
    51        llvmModule->print(file->os(), nullptr);
    52        file->keep();
    53        return success();
    54      });