The value NIL is not of type SB-C:STORAGE-CLASS

[Paul F. Dietz]

(defun bug099 (a)
  (declare (optimize (debug 2)))
  ((lambda (v1 v2) (boole boole-set a v2)) (numerator a) a))

==>

The value
  NIL
is not of type
  SB-C:STORAGE-CLASS
   [Condition of type TYPE-ERROR]
[...]
Backtrace:
  0: (SB-REGALLOC::UNBOUNDED-TN-P #<SB-C:TN t1 :NORMAL>)
  1: (SB-REGALLOC::PACK-GREEDY #<SB-C:COMPONENT :NAME "<unknown>" {103F493A33}> #S(SB-C::IR2-COMPONENT :GLOBAL-TN-COUNTER 40 :NORMAL-TNS #<SB-C:TN t1 :NORMAL> :RESTRICTED-TNS #<SB-C:TN t2[RAX(u)] :NORMAL> ..
  2: (SB-REGALLOC:PACK #<SB-C:COMPONENT :NAME "<unknown>" {103F493A33}>)
  3: (SB-C::%COMPILE-COMPONENT #<SB-C:COMPONENT :NAME "<unknown>" {103F493A33}>)
[...]

x86-64, "2.2.10.96-e1c81ec95"

[Paul F. Dietz (paul-f-dietz)]

Same bug:

(defun bug100 (a b)
  (declare (optimize (debug 2)))
  (unwind-protect a (+ (numerator b) (lognor b b))))