/// ConvertBackendLocation - Convert a location in a temporary llvm::SourceMgr /// buffer to be a valid FullSourceLoc. static FullSourceLoc ConvertBackendLocation(const llvm::SMDiagnostic &D, SourceManager &CSM) { // Get both the clang and llvm source managers. The location is relative to // a memory buffer that the LLVM Source Manager is handling, we need to add // a copy to the Clang source manager. const llvm::SourceMgr &LSM = *D.getSourceMgr(); // We need to copy the underlying LLVM memory buffer because llvm::SourceMgr // already owns its one and clang::SourceManager wants to own its one. const MemoryBuffer *LBuf = LSM.getMemoryBuffer(LSM.FindBufferContainingLoc(D.getLoc())); // Create the copy and transfer ownership to clang::SourceManager. llvm::MemoryBuffer *CBuf = llvm::MemoryBuffer::getMemBufferCopy(LBuf->getBuffer(), LBuf->getBufferIdentifier()); FileID FID = CSM.createFileIDForMemBuffer(CBuf); // Translate the offset into the file. unsigned Offset = D.getLoc().getPointer() - LBuf->getBufferStart(); SourceLocation NewLoc = CSM.getLocForStartOfFile(FID).getLocWithOffset(Offset); return FullSourceLoc(NewLoc, CSM); }