[PathV2]: Fix bug in create_directories which caused infinite recursion on
som inputs.
Bug found and fix proposed by Kal Conley!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153225 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/PathV2.cpp b/lib/Support/PathV2.cpp
index 786e1a1..e2a69a6 100644
--- a/lib/Support/PathV2.cpp
+++ b/lib/Support/PathV2.cpp
@@ -654,12 +654,13 @@
StringRef p = path.toStringRef(path_storage);
StringRef parent = path::parent_path(p);
- bool parent_exists;
+ if (!parent.empty()) {
+ bool parent_exists;
+ if (error_code ec = fs::exists(parent, parent_exists)) return ec;
- if (error_code ec = fs::exists(parent, parent_exists)) return ec;
-
- if (!parent_exists)
- if (error_code ec = create_directories(parent, existed)) return ec;
+ if (!parent_exists)
+ if (error_code ec = create_directories(parent, existed)) return ec;
+ }
return create_directory(p, existed);
}