[jhc] jhc 0.8 internal error (LetFloat)

[Roman Cheplyaka]

The source is here:
https://github.com/feuerbach/regex-applicative/zipball/576df7b5be5734f66b632505d9b9e1d495b941c1

Clearing the cache didn't help, so there's a good chance that you'll be
able to reproduce this. Just in case, I also attached the flint output
(both ordinary and verbose).

* John Meacham <john at repetae.net> [2012-02-11 13:41:23-0800]
> sure, if you could post the source, that would be useful.
> 
> Whenever encountering a bug like this, it is good to clear your cache
> (./jhc --purge-cache, which will delete all your .ho files) and
> recompile with '-flint' on the command line. that will run the
> typechecker after every transformation so will catch bugs earlier.
> Depending on the type of bug, -fe-verbose will not pretty print the
> output names so you will get the original mangled ones, harder to
> read, but if you need to correlate code between two core dumps it is
> handy.
> 
> Ideally, we will be able to capture a before and after pair of dumps.
> 
>     John
> 
> On Sat, Feb 11, 2012 at 1:32 PM, Roman Cheplyaka <roma at ro-che.info> wrote:
> > jhc --build-hl regex-applicative.yaml
> > jhc 0.8.0 (mydniquipepo-32)
> > Creating library from description file: "regex-applicative.yaml"
> > Reading: "regex-applicative.yaml"
> > Finding Dependencies...
> > Using Ho Cache: '/home/feuerbach/.jhc/cache'
> > Text.Regex.Applicative  [./Text/Regex/Applicative.hs]
> > Text.Regex.Applicative.Interface [./Text/Regex/Applicative/Interface.hs]
> > Text.Regex.Applicative.Object [./Text/Regex/Applicative/Object.hs]
> > Text.Regex.Applicative.Compile [./Text/Regex/Applicative/Compile.hs] <~/.jhc/cache/kb3lu73uegff4f51c0lq30kqlr.ho>
> > Text.Regex.Applicative.Types [./Text/Regex/Applicative/Types.hs] <~/.jhc/cache/kgtlpnnmdsr78aljjmcqn6s0ti.ho>
> > Text.Regex.Applicative.StateQueue [./Text/Regex/Applicative/StateQueue.hs] <~/.jhc/cache/sp3vi8t4kqgsfurdlkpa71sjp9.ho>
> > Fresh: <~/.jhc/cache/kgtlpnnmdsr78aljjmcqn6s0ti.ho>
> > Fresh: <~/.jhc/cache/kb3lu73uegff4f51c0lq30kqlr.ho>
> > Fresh: <~/.jhc/cache/sp3vi8t4kqgsfurdlkpa71sjp9.ho>
> > Typechecking...
> > [1 of 3] Text.Regex.Applicative.Object(.............................................)
> > [2 of 3] Text.Regex.Applicative.Interface(.............................................)
> > [3 of 3] Text.Regex.Applicative(.............................................)
> > Compiling...
> > [1 of 3] Text.Regex.Applicative.Object<.....................
> >>>> Exception thrown
> > Writing: hs.out_lint-before-FloatOutward-Init.jhc_core
> > LetFloat: could not find x38630396::Unknown
> > Internal Error
> >
> > I attached the generated core file. I can also publish the source code that
> > triggered the bug, if it helps.
> >
> > --
> > Roman I. Cheplyaka :: http://ro-che.info/
> >
> > _______________________________________________
> > jhc mailing list
> > jhc at haskell.org
> > http://www.haskell.org/mailman/listinfo/jhc
> >

-- 
Roman I. Cheplyaka :: http://ro-che.info/
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