diff options
Diffstat (limited to 'clang/lib/Serialization/ModuleManager.cpp')
| -rw-r--r-- | clang/lib/Serialization/ModuleManager.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/clang/lib/Serialization/ModuleManager.cpp b/clang/lib/Serialization/ModuleManager.cpp index 84cdd90..b7ee302 100644 --- a/clang/lib/Serialization/ModuleManager.cpp +++ b/clang/lib/Serialization/ModuleManager.cpp @@ -165,9 +165,10 @@ ModuleManager::addModule(StringRef FileName, ModuleKind Type, // Initialize the stream. NewModule->Data = PCHContainerRdr.ExtractPCH(*NewModule->Buffer); - // Read the signature eagerly now so that we can check it. - if (checkSignature(ReadSignature(NewModule->Data), ExpectedSignature, - ErrorStr)) + // Read the signature eagerly now so that we can check it. Avoid calling + // ReadSignature unless there's something to check though. + if (ExpectedSignature && checkSignature(ReadSignature(NewModule->Data), + ExpectedSignature, ErrorStr)) return OutOfDate; // We're keeping this module. Store it everywhere. |