From 6df7083be430bd40a5f46e7c14b7d5247cca0a8f Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Fri, 2 Aug 2013 15:31:35 +0000
Subject: [PATCH] Convert last use of st_dev in clang.

llvm-svn: 187654
---
 clang/lib/Driver/Tools.cpp | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 3a23732..c2b7f6e 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -1901,17 +1901,15 @@ static bool shouldUseLeafFramePointer(const ArgList &Args,
 /// If the PWD environment variable is set, add a CC1 option to specify the
 /// debug compilation directory.
 static void addDebugCompDirArg(const ArgList &Args, ArgStringList &CmdArgs) {
-  struct stat StatPWDBuf, StatDotBuf;
-
   const char *pwd = ::getenv("PWD");
   if (!pwd)
     return;
 
+  llvm::sys::fs::file_status PWDStatus, DotStatus;
   if (llvm::sys::path::is_absolute(pwd) &&
-      stat(pwd, &StatPWDBuf) == 0 &&
-      stat(".", &StatDotBuf) == 0 &&
-      StatPWDBuf.st_ino == StatDotBuf.st_ino &&
-      StatPWDBuf.st_dev == StatDotBuf.st_dev) {
+      !llvm::sys::fs::status(pwd, PWDStatus) &&
+      !llvm::sys::fs::status(".", DotStatus) &&
+      PWDStatus.getUniqueID() == DotStatus.getUniqueID()) {
     CmdArgs.push_back("-fdebug-compilation-dir");
     CmdArgs.push_back(Args.MakeArgString(pwd));
     return;
-- 
2.7.4