Dear cmucl developers, There seems to be an error in the compilation of fixnum operations:
(defun hash2 (x y) (declare (type fixnum x y)) (logand (the fixnum (+ x y)) 255)) If I compile this in 19a or the 2004-11 snapshot (in linux on an x86), any calls where the sum is negative give an error. For example: * (hash2 -1 0) Type-error in KERNEL::OBJECT-NOT-FIXNUM-ERROR-HANDLER: 4294967295 is not of type FIXNUM [Condition of type TYPE-ERROR] As far as I can tell, the optimization settings do not affect the outcome. The disassembly of hash2 indicates that X86::+-MOD32 is called, so maybe this has to do with the recent introduction of modular arithmetic. Mark Saaltink
