commit ea14a8799f2a6d139491483151cee4341ef1a73e
author Douglas Gregor <dgregor@apple.com> Fri Feb 08 21:27:45 2013 +0000
committer Douglas Gregor <dgregor@apple.com> Fri Feb 08 21:27:45 2013 +0000
tree 1299f45bc2c952230c21ee9d09c1d535236c9383
parent 52635ff9fb530dfdfc6a94e52a2270bf1bb8346b

Never cache the result of a module file lookup.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174744 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Serialization/ModuleManager.cpp

diff --git a/lib/Serialization/ModuleManager.cpp b/lib/Serialization/ModuleManager.cpp
index bc9917b..b9f4d88 100644
--- a/lib/Serialization/ModuleManager.cpp
+++ b/lib/Serialization/ModuleManager.cpp
@@ -25,12 +25,14 @@
 using namespace serialization;
 
 ModuleFile *ModuleManager::lookup(StringRef Name) {
-  const FileEntry *Entry = FileMgr.getFile(Name);
+  const FileEntry *Entry = FileMgr.getFile(Name, /*openFile=*/false,
+                                           /*cacheFailure=*/false);
   return Modules[Entry];
 }
 
 llvm::MemoryBuffer *ModuleManager::lookupBuffer(StringRef Name) {
-  const FileEntry *Entry = FileMgr.getFile(Name);
+  const FileEntry *Entry = FileMgr.getFile(Name, /*openFile=*/false,
+                                           /*cacheFailure=*/false);
   return InMemoryBuffers[Entry];
 }
 
@@ -38,7 +40,8 @@
 ModuleManager::addModule(StringRef FileName, ModuleKind Type,
                          SourceLocation ImportLoc, ModuleFile *ImportedBy,
                          unsigned Generation, std::string &ErrorStr) {
-  const FileEntry *Entry = FileMgr.getFile(FileName);
+  const FileEntry *Entry = FileMgr.getFile(FileName, /*openFile=*/false,
+                                           /*cacheFailure=*/false);
   if (!Entry && FileName != "-") {
     ErrorStr = "file not found";
     return std::make_pair(static_cast<ModuleFile*>(0), false);