r120013 dropped passing in the precomputed file size to
MemoryBuffer::getFile, causing us to pick up a fstat for
every file. Restore the optimization.
llvm-svn: 120032
diff --git a/clang/lib/Basic/FileManager.cpp b/clang/lib/Basic/FileManager.cpp
index 9572aaad..b884388 100644
--- a/clang/lib/Basic/FileManager.cpp
+++ b/clang/lib/Basic/FileManager.cpp
@@ -394,11 +394,12 @@
getBufferForFile(const FileEntry *Entry, std::string *ErrorStr) {
llvm::StringRef Filename = Entry->getName();
if (FileSystemOpts.WorkingDir.empty())
- return llvm::MemoryBuffer::getFile(Filename, ErrorStr);
+ return llvm::MemoryBuffer::getFile(Filename, ErrorStr, Entry->getSize());
llvm::sys::Path FilePath(Filename);
FixupRelativePath(FilePath, FileSystemOpts);
- return llvm::MemoryBuffer::getFile(FilePath.c_str(), ErrorStr);
+ return llvm::MemoryBuffer::getFile(FilePath.c_str(), ErrorStr,
+ Entry->getSize());
}
llvm::MemoryBuffer *FileManager::