[Frontend] Factor out helper function, for clarity.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173853 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/InitHeaderSearch.cpp b/lib/Frontend/InitHeaderSearch.cpp
index f378fc2..f595fb1 100644
--- a/lib/Frontend/InitHeaderSearch.cpp
+++ b/lib/Frontend/InitHeaderSearch.cpp
@@ -103,6 +103,14 @@
} // end anonymous namespace.
+static bool CanPrefixSysroot(StringRef Path) {
+#if defined(_WIN32)
+ return !Path.empty() && llvm::sys::path::is_separator(Path[0]);
+#else
+ return llvm::sys::path::is_absolute(Path);
+#endif
+}
+
void InitHeaderSearch::AddPath(const Twine &Path,
IncludeDirGroup Group, bool isCXXAware,
bool isFramework, bool IgnoreSysRoot) {
@@ -115,16 +123,9 @@
// Handle isysroot.
if ((Group == System || Group == CXXSystem) && !IgnoreSysRoot &&
-#if defined(_WIN32)
- !MappedPathStr.empty() &&
- llvm::sys::path::is_separator(MappedPathStr[0]) &&
-#else
- llvm::sys::path::is_absolute(MappedPathStr) &&
-#endif
- IsNotEmptyOrRoot) {
+ CanPrefixSysroot(MappedPathStr) && IsNotEmptyOrRoot) {
MappedPathStorage.clear();
- MappedPathStr =
- (IncludeSysroot + Path).toStringRef(MappedPathStorage);
+ MappedPathStr = (IncludeSysroot + Path).toStringRef(MappedPathStorage);
}
// Compute the DirectoryLookup type.