search for: targetlibraryfunct

...ppy with that, and don't see that changing in the future, that gives us an opportunity.  We could cache the libfunc ID into the Function itself, just like we do for intrinsics today. What would that look like in practice you ask? * We'd move the definition of LibFunc into include/IR/TargetLibraryFunctions.h/def (only the enum, not the rest of TLI) * We'd change IntID field in GlobalValue to be union of IntrinsicID and LibFunc. * We'd change Function::getIntrisicID to check the HasLLVMReservedName flag (already existing), and return Intrinsic::not_inrinsic value if not...