If work can be done in either the caller or the callee, why do we typically prefer to do it in the callee? Why do compilers typically allocate space for arguments in the stack, even when they pass...

If work can be done in either the caller or the callee, why do we typically prefer to do it in the callee? Why do compilers typically allocate space for arguments in the stack, even when they pass them in registers? List the optimizations that can be made to the subroutine calling sequence in important special cases (e.g., leaf routines).