From: Douglas Gregor <dgregor@apple.com>
Date: Fri, 9 Dec 2011 16:22:07 +0000 (+0000)
Subject: Use llvm::sys::fs::equivalent rather than comparing inodes, because
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=99a922b6da21a474f8ed35f2b1a3bfd627900d1a;p=clang

Use llvm::sys::fs::equivalent rather than comparing inodes, because
comparing inodes doesn't actually work on Windows.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146260 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Serialization/ASTReader.cpp b/lib/Serialization/ASTReader.cpp
index c7393e4c78..44ffc29bad 100644
--- a/lib/Serialization/ASTReader.cpp
+++ b/lib/Serialization/ASTReader.cpp
@@ -1427,14 +1427,13 @@ bool HeaderFileInfoTrait::EqualKey(internal_key_type a, internal_key_type b) {
   
   if (llvm::sys::path::filename(a) != llvm::sys::path::filename(b))
     return false;
-  
-  // The file names match, but the path names don't. stat() the files to
-  // see if they are the same.      
-  struct stat StatBufA, StatBufB;
-  if (StatSimpleCache(a, &StatBufA) || StatSimpleCache(b, &StatBufB))
+
+  // Determine whether the actual files are equivalent.
+  bool Result = false;
+  if (llvm::sys::fs::equivalent(a, b, Result))
     return false;
   
-  return StatBufA.st_ino == StatBufB.st_ino;
+  return Result;
 }
     
 std::pair<unsigned, unsigned>