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bug#11087: vector limitation in compiling to bytecode
From: |
Ian Price |
Subject: |
bug#11087: vector limitation in compiling to bytecode |
Date: |
Fri, 06 Jul 2012 07:52:15 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.3 (gnu/linux) |
Andy Wingo <address@hidden> writes:
> On Sat 24 Mar 2012 21:09, Ian Price <address@hidden> writes:
>
>> ;;; ERROR: In procedure bytevector-u8-set!: Value out of range: 390
>> vector constant containing 100000 values
>>
>> This limitation is documented, and somewhat reasonable, but on IRC mark
>> weaver asked me to file a bug anyway, since he thinks the assembler
>> should have a fall back plan.
>
> I agree with Mark.
>
> For what it's worth, if the vector is really constant (e.g. just
> composed of immediates), the RTL VM will emit the whole thing
> statically. Otherwise it will emit code to allocate a vector
> of the right size at init time, initializing its elements with
> individual instructions. This latter strategy is probably the right
> thing to do with the Guile 2.0 VM.
In my case, it was completely static. I had generated the vector from
another file, of existing data. It's good to hear this will work in the
future rtl based guile.
Thanks
--
Ian Price
"Programming is like pinball. The reward for doing it well is
the opportunity to do it again" - from "The Wizardy Compiled"