+ // A readonly argmemonly function only reads from memory pointed to by
+ // it's arguments with arbitrary offsets. If we can prove there are no
+ // writes to this memory in the loop, we can hoist or sink.
+ if (AliasAnalysis::onlyAccessesArgPointees(Behavior)) {
+ for (Value *Op : CI->arg_operands())
+ if (Op->getType()->isPointerTy() &&
+ pointerInvalidatedByLoop(Op, MemoryLocation::UnknownSize,
+ AAMDNodes(), CurAST))
+ return false;
+ return true;
+ }