NIBBLES project no longer working; breaks IRONCLAD

[Paul F. Dietz]

This is not strictly speaking an SBCL bug, but it's a problem caused by recent changes to SBCL internals that some external packages exploit.

This particular problem comes from trying to build ironclad. This fails with this error when building ironclad/src/common.lisp:

Undefined instruction: SB-VM::MOVZXD in
 (SB-ASSEM:INST SB-VM::MOVZXD SB-VM::RESULT SB-VM::MEMREF)
   [Condition of type SIMPLE-ERROR]
[...]
Backtrace:
  0: ((SB-C::VOP UB32REF/LE) #<SB-C::VOP :INFO UB32REF/LE :ARGS #<SB-C:TN-REF :TN #<SB-C:TN INPUT-BLOCK1!1[R9] :NORMAL> :WRITE-P NIL :VOP UB32REF/LE> :RESULTS #<SB-C:TN-REF :TN #<SB-C:TN t2[RAX] :NORMAL> :..
  1: (SB-C::GENERATE-CODE #<SB-C:COMPONENT :NAME SB-IMPL::XSUBTRACT {1003D36833}>)
  2: (SB-C::%COMPILE-COMPONENT #<SB-C:COMPONENT :NAME SB-IMPL::XSUBTRACT {1003D36833}>)
  3: (SB-C::COMPILE-COMPONENT #<SB-C:COMPONENT :NAME SB-IMPL::XSUBTRACT {1003D36833}>)
  4: (SB-C::%COMPILE (SB-INT:NAMED-LAMBDA XOR-BLOCK (BLOCK-LENGTH INPUT-BLOCK1 INPUT-BLOCK2 INPUT-BLOCK2-START OUTPUT-BLOCK OUTPUT-BLOCK-START) (DECLARE (SB-C::TOP-LEVEL-FORM)) (DECLARE (TYPE # INPUT-BLOCK..
  5: (SB-C::FOPCOMPILE-FUNCTION #<SB-FASL:FASL-OUTPUT "/pdietz/.cache/common-lisp/sbcl-1.4.11-linux-x64/pdietz/quicklisp/local-projects/ironclad/src/common-tmpGHU3ALSV.fasl"> (SB-INT:NAMED-LAMBDA XOR-BLOCK..
  6: (SB-C::FOPCOMPILE (SB-IMPL::%DEFUN (QUOTE XOR-BLOCK) (SB-INT:NAMED-LAMBDA XOR-BLOCK (BLOCK-LENGTH INPUT-BLOCK1 INPUT-BLOCK2 INPUT-BLOCK2-START OUTPUT-BLOCK OUTPUT-BLOCK-START) (DECLARE #) (DECLARE # #..
  7: (SB-C::CONVERT-AND-MAYBE-COMPILE (SB-IMPL::%DEFUN (QUOTE XOR-BLOCK) (SB-INT:NAMED-LAMBDA XOR-BLOCK (BLOCK-LENGTH INPUT-BLOCK1 INPUT-BLOCK2 INPUT-BLOCK2-START OUTPUT-BLOCK OUTPUT-BLOCK-START) (DECLARE ..
[...]

I think this thing, ub32ref/le, is from the NIBBLES project. Both ironclad and nibbles are under quicklisp (ironclad-v0.40, nibbles-20180430-git).

Some hints on how to update nibbles would be useful if I end up doing it myself.

[Stas Boukarev (stassats)]

Fixed by https://github.com/sharplispers/nibbles/releases/tag/v0.14

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

Well that's cool. Thanks!