Clean build ASSERT failure

[Austin Seipp]

I'm attempting to reproduce this now (but my build isn't finished),
since HEAD builds fine otherwise it seems. I assume you just set
GhcDebugged=YES in build.mk?

On Fri, Feb 28, 2014 at 3:00 PM, Simon Peyton Jones
<simonpj at microsoft.com> wrote:
> I’m seeing this assertion failure when using the stage1 compiler (built with
> –DDEBUG) to compile the stage2 compiler.  Is anyone else seeing this?
>
> Simon
>
>
>
> ghc-stage1.exe: panic! (the 'impossible' happened)
>
>   (GHC version 7.9.20140227 for i386-unknown-mingw32):
>
>           ASSERT failed!
>
>     file compiler\basicTypes\Demand.lhs line 445
>
>     3
>
>     [U]
>
>
>
> Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
>
>
>
> compiler/ghc.mk:642: recipe for target 'compiler/stage2/build/ParserCore.o'
> failed
>
>
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-- 
Regards,

Austin Seipp, Haskell Consultant
Well-Typed LLP, http://www.well-typed.com/