From bab2d49d4aecd83de25dfdefed0c4e4b03957de1 Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi <geek4civic@gmail.com>
Date: Wed, 16 Mar 2011 02:53:32 +0000
Subject: [PATCH] Windows/PathV2.inc: [PR8520] Recognize "NUL" as special
 (character) file.

FIXME: It is a temporal hack. We should detect as many "special file name" as possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127724 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Support/Windows/PathV2.inc | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/lib/Support/Windows/PathV2.inc b/lib/Support/Windows/PathV2.inc
index 8f306d19fe1..af71b73cd69 100644
--- a/lib/Support/Windows/PathV2.inc
+++ b/lib/Support/Windows/PathV2.inc
@@ -449,7 +449,14 @@ error_code status(const Twine &path, file_status &result) {
   SmallString<128> path_storage;
   SmallVector<wchar_t, 128> path_utf16;
 
-  if (error_code ec = UTF8ToUTF16(path.toStringRef(path_storage),
+  StringRef path8 = path.toStringRef(path_storage);
+  // FIXME: We should detect as many "special file name" as possible.
+  if (path8.compare_lower("nul") == 0) {
+    result = file_status(file_type::character_file);
+    return success;
+  }
+
+  if (error_code ec = UTF8ToUTF16(path8,
                                   path_utf16))
     return ec;