[Openmcl-devel] Compiler infinite loop

Valentin Baciu valentin at syntactic.org
Sun Sep 19 19:08:59 UTC 2010


Hello,

I ran into an infinite loop that keeps one out of two CPUs at 100% while
compiling some piece of code reduced to this example:

(defun keep-compiler-busy ()
  (let ((test nil))
    (symbol-macrolet ((test test))
      (pprint test))))

I am not sure if this is a bug (maybe not according to CLHS) or if this
could be a "missing" feature, but it bit me until I realized what happened.
My guess is that the compiler keeps expanding the symbol 'test without
exhausting the stack. Not a big problem from my point of view, but please
let me know your thoughts on dealing with this kind of stuff.
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