static unsigned getHashValue(const PPRegion &S) {
llvm::FoldingSetNodeID ID;
ID.AddInteger(S.getIno());
ID.AddInteger(S.getDev());
ID.AddInteger(S.getOffset());
ID.AddInteger(S.getModTime());
return ID.ComputeHash();
}
static unsigned getHashValue(const PPRegion &S) {
llvm::FoldingSetNodeID ID;
const llvm::sys::fs::UniqueID &UniqueID = S.getUniqueID();
ID.AddInteger(UniqueID.getFile());
ID.AddInteger(UniqueID.getDevice());
ID.AddInteger(S.getOffset());
ID.AddInteger(S.getModTime());
return ID.ComputeHash();
}