Fails to build on 32-bit ARMel

[Sébastien Villemot]

When trying to build the current git head of SBCL (commit 01ccbe39) on 32-bit armv5te (Debian “armel” port), it fails with:

[125/297] src/code/foreign (0.324 sec)
While evaluating the form starting at line 177, column 0
  of #P"/home/sebastien/sbcl/src/cold/compile-cold-sbcl.lisp":
While evaluating the form starting at line 23, column 0
  of #P"/home/sebastien/sbcl/make-host-2.lisp":[126/297] src/code/unix

debugger invoked on a SIMPLE-ERROR:
  #<SB-C:TN t1 :NORMAL> is not valid as the first argument to VOP:
  SB-VM::MOVE-WORD-ARG
Primitive type: SINGLE-FLOAT
SC restrictions:
  (SB-VM::SIGNED-REG SB-VM::UNSIGNED-REG)
The primitive type disallows these loadable SCs:
  (SB-VM::SIGNED-REG SB-VM::UNSIGNED-REG)

The same problem happens with SBCL 2.1.10, see https://buildd.debian.org/status/fetch.php?pkg=sbcl&arch=armel&ver=2%3A2.1.10-1&stamp=1635852484&raw=0

Note that SBCL 2.1.9 compiled fine, so the breakage was introduced between 2.1.9 and 2.1.10.

See also the discussion in LP#1839783.

Thanks for your work,

S. Villemot
Maintainer of the official Debian package

[Stas Boukarev (stassats)]

Builds ok on armhf, so it's an armel problem.

[Sébastien Villemot (sebastien-villemot)]

Indeed it’s only on armel (I indicated it in the text body, but the title was indeed imprecise).