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Compiler bug involving tag collision and labels function inlining #493

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pfdietz opened this issue May 23, 2024 · 1 comment

pfdietz commented May 23, 2024 •

edited by xrme

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(defun bug392 ()
  (let ((lam
         '(lambda ()
           (tagbody (labels ((%f () (go 5)))
                      (declare (inline %f))
                      (tagbody 5 (%f)))
            5)
           nil)))
    (funcall (compile nil lam))))

This function, when called, loops infinitely. I suspect the compiler is getting the two "5" tags confused.

"Version 1.12.2 (v1.12.2) LinuxX8664"

The text was updated successfully, but these errors were encountered:

Author

pfdietz commented May 23, 2024

The bug also occurs when FLET is used instead of LABELS.

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