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bug#10756: [2.0.5+] Miscompilation with peval: local shadows module-ref
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From: |
Andy Wingo |
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Subject: |
bug#10756: [2.0.5+] Miscompilation with peval: local shadows module-ref |
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Date: |
Thu, 09 Feb 2012 14:17:22 +0100 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.3 (gnu/linux) |
On Wed 08 Feb 2012 00:04, address@hidden (Ludovic Courtès) writes:
> scheme@(guile-user)> ,optimize (define (foo) (define bar (@ (chbouib) bar))
> bar)
> $11 = (define foo
> (lambda ()
> (let ((bar-1510 (if #f #f)))
> (letrec*
> ()
> (begin (set! bar-1510 bar-1510) bar-1510)))))
>
> Here, the ‘bar’ local is always set to *undefined*, wrongfully.
It's actually an expander bug:
scheme@(guile-user)> ,expand (define (foo) (define bar (@ (chbouib) bar)) bar)
$2 = (define foo
(lambda () (letrec* ((bar-92 bar-92)) bar-92)))
Andy
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