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Re: [MIT-Scheme-devel] compiler bug
From: |
Joe Marshall |
Subject: |
Re: [MIT-Scheme-devel] compiler bug |
Date: |
Sat, 19 Sep 2009 15:31:44 -0700 |
If there's anything I can help with, let me know.
On Sat, Sep 19, 2009 at 12:58 PM, Chris Hanson <address@hidden> wrote:
> Not yet. I've had trouble because some of the commits are broken and
> require patching. Also, I got sloppy late last night so I have to
> re-do some of the tests. I just semi-automated the testing process
> and made a more careful log of the known results. I should have
> something in a few hours.
>
> On Sat, Sep 19, 2009 at 10:28 AM, Joe Marshall <address@hidden> wrote:
>> Any luck?
>>
>> On Fri, Sep 18, 2009 at 8:48 PM, Chris Hanson <address@hidden> wrote:
>>> Not sure about that. I'm doing the bisection now. The bug isn't
>>> present in commit 745a16218a43692d2c9ecdad72d1bab73fab0522 from Sept.
>>> 7, so it's pretty recent.
>>>
>>> On Fri, Sep 18, 2009 at 8:35 PM, Joe Marshall <address@hidden> wrote:
>>>> 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.
>>>>
>>>> Any indication of what sort of items are in the list?
>>>> Any idea of which procedure is being compiled?
>>>> What compiler phase?
>>>>
>>>> I fixed a bug in SF that was preventing things like
>>>> ((access vector-ref system-global-environment) ....)
>>>> from being optimized. I tested it pretty well on a second and
>>>> third generation syntaxing of itself, but maybe it created some
>>>> scode that works for the interpreter, but isn't quite kosher
>>>> for the compiler.
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> ~jrm
>>>>
>>>
>>
>>
>>
>> --
>> ~jrm
>>
>
--
~jrm
- Re: [MIT-Scheme-devel] compiler bug, (continued)
Re: [MIT-Scheme-devel] compiler bug, Joe Marshall, 2009/09/18
Re: [MIT-Scheme-devel] compiler bug, Joe Marshall, 2009/09/18