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(Module m) {
35   return LLVM::ModuleTranslation::translateModule<>(m);
36 }
37 
38 static TranslateFromMLIRRegistration registration(
39     "mlir-to-llvmir", [](Module module, llvm::StringRef outputFilename) {
40       if (!module)
41         return true;
42 
43       auto llvmModule = LLVM::ModuleTranslation::translateModule<>(module);
44       if (!llvmModule)
45         return true;
46 
47       auto file = openOutputFile(outputFilename);
48       if (!file)
49         return true;
50 
51       llvmModule->print(file->os(), nullptr);
52       file->keep();
53       return false;
54     });
55