1 files changed, 34 insertions, 0 deletions
diff --git a/contrib/llvm-project/clang/lib/Frontend/FrontendOptions.cpp b/contrib/llvm-project/clang/lib/Frontend/FrontendOptions.cpp
new file mode 100644
index 000000000000..6ccb2c395604
--- /dev/null
+++ b/contrib/llvm-project/clang/lib/Frontend/FrontendOptions.cpp
@@ -0,0 +1,34 @@
+//===- FrontendOptions.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 "clang/Frontend/FrontendOptions.h"
+#include "llvm/ADT/StringSwitch.h"
+
+using namespace clang;
+
+InputKind FrontendOptions::getInputKindForExtension(StringRef Extension) {
+  return llvm::StringSwitch<InputKind>(Extension)
+    .Cases("ast", "pcm", InputKind(InputKind::Unknown, InputKind::Precompiled))
+    .Case("c", InputKind::C)
+    .Cases("S", "s", InputKind::Asm)
+    .Case("i", InputKind(InputKind::C).getPreprocessed())
+    .Case("ii", InputKind(InputKind::CXX).getPreprocessed())
+    .Case("cui", InputKind(InputKind::CUDA).getPreprocessed())
+    .Case("m", InputKind::ObjC)
+    .Case("mi", InputKind(InputKind::ObjC).getPreprocessed())
+    .Cases("mm", "M", InputKind::ObjCXX)
+    .Case("mii", InputKind(InputKind::ObjCXX).getPreprocessed())
+    .Cases("C", "cc", "cp", InputKind::CXX)
+    .Cases("cpp", "CPP", "c++", "cxx", "hpp", InputKind::CXX)
+    .Case("cppm", InputKind::CXX)
+    .Case("iim", InputKind(InputKind::CXX).getPreprocessed())
+    .Case("cl", InputKind::OpenCL)
+    .Case("cu", InputKind::CUDA)
+    .Cases("ll", "bc", InputKind::LLVM_IR)
+    .Default(InputKind::Unknown);
+}