From 208d7cfaf14c433cbc9a253db90db82f60591c89 Mon Sep 17 00:00:00 2001
From: emankov <evgeny.mankov@gmail.com>
Date: Fri, 28 Dec 2018 01:34:35 +0300
Subject: [PATCH] [HIPIFY] LLVM compatibility

+ sys::fs::make_absolute fro LLVM < 5.0
+ sys::fs::real_path for LLVM >= 5.0
---
 hipify-clang/src/LLVMCompat.cpp | 9 +++++++++
 hipify-clang/src/LLVMCompat.h   | 3 +++
 hipify-clang/src/main.cpp       | 6 +++---
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/hipify-clang/src/LLVMCompat.cpp b/hipify-clang/src/LLVMCompat.cpp
index f96bd86bb0..22a0b56d64 100644
--- a/hipify-clang/src/LLVMCompat.cpp
+++ b/hipify-clang/src/LLVMCompat.cpp
@@ -94,4 +94,13 @@ clang::SourceLocation getEndLoc(const clang::TypeLoc& typeLoc) {
 #endif
 }
 
+std::error_code real_path(const Twine &path, SmallVectorImpl<char> &output,
+                          bool expand_tilde) {
+#if LLVM_VERSION_MAJOR < 5
+  return sys::fs::make_absolute(path, output);
+#else
+  return sys::fs::real_path(path, output, expand_tilde);
+#endif
+}
+
 } // namespace llcompat
diff --git a/hipify-clang/src/LLVMCompat.h b/hipify-clang/src/LLVMCompat.h
index 4d6edcc9f8..98ff66fb41 100644
--- a/hipify-clang/src/LLVMCompat.h
+++ b/hipify-clang/src/LLVMCompat.h
@@ -78,4 +78,7 @@ void EnterPreprocessorTokenStream(clang::Preprocessor& _pp,
                                   size_t len,
                                   bool DisableMacroExpansion);
 
+std::error_code real_path(const Twine &path, SmallVectorImpl<char> &output,
+                          bool expand_tilde = false);
+
 } // namespace llcompat
diff --git a/hipify-clang/src/main.cpp b/hipify-clang/src/main.cpp
index 06981a9d70..7dc42f8882 100644
--- a/hipify-clang/src/main.cpp
+++ b/hipify-clang/src/main.cpp
@@ -46,7 +46,7 @@ std::string getAbsoluteDirectory(const std::string& sDir, std::error_code& EC,
     return sDir;
   }
   SmallString<256> dirAbsPath;
-  EC = sys::fs::real_path(sDir, dirAbsPath, true);
+  EC = llcompat::real_path(sDir, dirAbsPath, true);
   if (!EC && sys::fs::is_regular_file(dirAbsPath)) {
     llvm::errs() << "\n" << sHipify << sError << sDir << " is not a directory\n";
     EC = std::error_code(static_cast<int>(std::errc::not_a_directory), std::generic_category());
@@ -58,7 +58,7 @@ std::string getAbsoluteDirectory(const std::string& sDir, std::error_code& EC,
       llvm::errs() << "\n" << sHipify << sError << EC.message() << ": " << sDirType << " directory: " << sDir << "\n";
       return "";
     }
-    EC = sys::fs::real_path(sDir, dirAbsPath, true);
+    EC = llcompat::real_path(sDir, dirAbsPath, true);
     if (EC) {
       llvm::errs() << "\n" << sHipify << sError << EC.message() << ": " << sDirType << " directory: " << sDir << "\n";
       return "";
@@ -137,7 +137,7 @@ int main(int argc, const char **argv) {
     // Create a copy of the file to work on. When we're done, we'll move this onto the
     // output (which may mean overwriting the input, if we're in-place).
     // Should we fail for some reason, we'll just leak this file and not corrupt the input.
-    EC = sys::fs::real_path(src, sourceAbsPath, true);
+    EC = llcompat::real_path(src, sourceAbsPath, true);
     if (EC) {
       llvm::errs() << "\n" << sHipify << sError << EC.message() << ": " << src << "\n";
       Result = 1;