xref: /llvm-project/flang/lib/Frontend/FrontendOptions.cpp (revision 4ad7279392653c0bcf564799ffb3f7e20ed4ef00)
1 //===- FrontendOptions.cpp ------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // Coding style: https://mlir.llvm.org/getting_started/DeveloperGuide/
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #include "flang/Frontend/FrontendOptions.h"
14 
15 using namespace Fortran::frontend;
16 
isFixedFormSuffix(llvm::StringRef suffix)17 bool Fortran::frontend::isFixedFormSuffix(llvm::StringRef suffix) {
18   // Note: Keep this list in-sync with flang/test/lit.cfg.py
19   return suffix == "f77" || suffix == "f" || suffix == "F" || suffix == "ff" ||
20          suffix == "for" || suffix == "FOR" || suffix == "fpp" ||
21          suffix == "FPP";
22 }
23 
isFreeFormSuffix(llvm::StringRef suffix)24 bool Fortran::frontend::isFreeFormSuffix(llvm::StringRef suffix) {
25   // Note: Keep this list in-sync with flang/test/lit.cfg.py
26   return suffix == "f90" || suffix == "F90" || suffix == "ff90" ||
27          suffix == "f95" || suffix == "F95" || suffix == "ff95" ||
28          suffix == "f03" || suffix == "F03" || suffix == "f08" ||
29          suffix == "F08" || suffix == "f18" || suffix == "F18" ||
30          suffix == "cuf" || suffix == "CUF";
31 }
32 
isToBePreprocessed(llvm::StringRef suffix)33 bool Fortran::frontend::isToBePreprocessed(llvm::StringRef suffix) {
34   return suffix == "F" || suffix == "FOR" || suffix == "fpp" ||
35          suffix == "FPP" || suffix == "F90" || suffix == "F95" ||
36          suffix == "F03" || suffix == "F08" || suffix == "F18" ||
37          suffix == "CUF";
38 }
39 
isCUDAFortranSuffix(llvm::StringRef suffix)40 bool Fortran::frontend::isCUDAFortranSuffix(llvm::StringRef suffix) {
41   return suffix == "cuf" || suffix == "CUF";
42 }
43 
getInputKindForExtension(llvm::StringRef extension)44 InputKind FrontendOptions::getInputKindForExtension(llvm::StringRef extension) {
45   if (isFixedFormSuffix(extension) || isFreeFormSuffix(extension)) {
46     return Language::Fortran;
47   }
48 
49   if (extension == "bc" || extension == "ll")
50     return Language::LLVM_IR;
51   if (extension == "fir" || extension == "mlir")
52     return Language::MLIR;
53 
54   return Language::Unknown;
55 }
56