Re: [MIT-Scheme-devel] compiler bug

[Joe Marshall]

Of all the recent changes that I'm aware of, I'm thinking that the change
I made to expand the CAR/CDR calls in list.scm is the most likely
culprit just because it is the file `list.scm'.  I can't really imagine what
would cause the effect you are seeing, though.  I just changed calls
to CADR into calls to (CAR (CDR ..)) etc.

--- I just looked at it again, and I'm not seeing anything obviously wrong.

On Fri, Sep 18, 2009 at 1:57 PM, Chris Hanson <address@hidden> wrote:
> FYI, while testing my most recent changes, I ran across a recent
> compiler bug.  To reproduce: using the current compiler, do a fresh
> compile from sources.  Then use that compiler to do another fresh
> compile.  The second compilation hangs during the compilation of
> "cref/anfile" (the very first file to compile).  The problem appears
> to be that the compiler is running map over a list of items, but that
> the list is circular.
>
> This bug is not present in the 20090107 release (starting with that
> compiler as stage 0).  I haven't tried using the 20090107 compiler as
> stage 0 and compiling current sources.
>
> I'm going to start searching for the commit that caused this, but if
> anyone has any ideas where the problem is I'd love to hear them.
>
>
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-- 
~jrm