Re: NIL not of type STORAGE-CLASS in PERFORM-OPERAND-LOWERING

Fixed. Thanks.

On Fri, Jan 30, 2026 at 3:17 PM Eric Marsden via Sbcl-devel
<[email protected]> wrote:
>
> Hi,
>
> This is from random-integer testing on AMD64.
>
> * (lisp-implementation-version)
> "2.6.1.38-6076dcab9"
> * (defun foo (a b)
>      (declare (type (integer -2 0) a))
>      (declare (type (integer -1173364836553829633 -951029402253260815) b))
>      (let ((foo (shiftf a -2)))
>        (expt (floor b a) 0)))
>
> ; in: DEFUN FOO
> ;     (FOO (SHIFTF A -2))
> ;
> ; caught STYLE-WARNING:
> ;   The variable FOO is defined but never used.
>
> debugger invoked on a TYPE-ERROR @B8003E51C2 in thread
> #<THREAD tid=94541 "main thread" RUNNING {1200BF8003}>:
>    The value
>      NIL
>    is not of type
>      SB-C:STORAGE-CLASS
>
> Type HELP for debugger help, or (SB-EXT:EXIT) to exit from SBCL.
>
> restarts (invokable by number or by possibly-abbreviated name):
>    0: [ABORT] Exit debugger, returning to top level.
>
> (SB-ASSEM::PERFORM-OPERAND-LOWERING (0 #<SB-C:TN t1 :UNUSED>
> #<SB-X86-64-ASM::EA  base=#<SB-C:TN B!2[RDI(s)] :DEBUG-ENVIRONMENT>
> index=#<SB-C:TN t3[RAX(u)] :NORMAL> disp=0>))
> 0]
>
>
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