Comment 2 for bug 486812

 status confirmed
 importance low

Traps are off by default on darwin, so this issue doesn't appear there. (Type-system limitation apply of course.)

I think Nathan has the right idea:

[17:44] <froydnj> make MAKE-DOUBLE-FLOAT should not be trivially-foldable (via DEFKNOWN) and have a special DEFTRANSFORM instead