From: Sean Callanan <scallanan@apple.com>
Date: Thu, 30 Apr 2015 00:44:21 +0000 (+0000)
Subject: Use a more reliable method to determine whether
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4239eb2a598fd0c1765cf909b23b8eb2003a4f40;p=clang

Use a more reliable method to determine whether
a FileID corresponds to a real file or to a
memory buffer.  The old method didn't work when
Clang was built Release, which meant it wasn't
a very good method at all.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@236188 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/AST/ASTImporter.cpp b/lib/AST/ASTImporter.cpp
index c75eba696c..911f1681ce 100644
--- a/lib/AST/ASTImporter.cpp
+++ b/lib/AST/ASTImporter.cpp
@@ -5643,8 +5643,7 @@ FileID ASTImporter::Import(FileID FromID) {
   // Map the FileID for to the "to" source manager.
   FileID ToID;
   const SrcMgr::ContentCache *Cache = FromSLoc.getFile().getContentCache();
-  if (Cache->OrigEntry &&
-      Cache->OrigEntry->getUniqueID() != llvm::sys::fs::UniqueID()) {
+  if (Cache->OrigEntry && Cache->OrigEntry->getDir()) {
     // FIXME: We probably want to use getVirtualFile(), so we don't hit the
     // disk again
     // FIXME: We definitely want to re-use the existing MemoryBuffer, rather