Opened 7 months ago

Closed 7 months ago

#16379 closed bug (duplicate)

JuicyPixels build panics on s390x ghc-8.4.4

Reported by: juhpetersen Owned by:
Priority: normal Milestone:
Component: Compiler Version: 8.4.4
Keywords: Cc:
Operating System: Linux Architecture: Other
Type of failure: Compile-time crash or panic Test Case:
Blocked By: Blocking:
Related Tickets: Differential Rev(s):
Wiki Page:

Description (last modified by juhpetersen)

When I try to build JuicyPixels-3.2.9.5 on Fedora s390x Linux, ghc-8.4.4 panics:

[ 9 of 30] Compiling Codec.Picture.ColorQuant ( src/Codec/Picture/ColorQuant.hs, dist/build/Codec/Picture/ColorQuant.o )
BUILDSTDERR: src/Codec/Picture/ColorQuant.hs:123:26: warning: [-Woverflowed-literals]
BUILDSTDERR:     Literal 256 is out of the GHC.Word.Word8 range 0..255
BUILDSTDERR:     |
BUILDSTDERR: 123 |       (PixelRGB8 (r .&. (256 - dr)) (g .&. (256 - dg)) (b .&. (256 - db)))
BUILDSTDERR:     |                          ^^^
BUILDSTDERR: src/Codec/Picture/ColorQuant.hs:123:45: warning: [-Woverflowed-literals]
BUILDSTDERR:     Literal 256 is out of the GHC.Word.Word8 range 0..255
BUILDSTDERR:     |
BUILDSTDERR: 123 |       (PixelRGB8 (r .&. (256 - dr)) (g .&. (256 - dg)) (b .&. (256 - db)))
BUILDSTDERR:     |                                             ^^^
BUILDSTDERR: src/Codec/Picture/ColorQuant.hs:123:64: warning: [-Woverflowed-literals]
BUILDSTDERR:     Literal 256 is out of the GHC.Word.Word8 range 0..255
BUILDSTDERR:     |
BUILDSTDERR: 123 |       (PixelRGB8 (r .&. (256 - dr)) (g .&. (256 - dg)) (b .&. (256 - db)))
BUILDSTDERR:     |                                                                ^^^
BUILDSTDERR: ghc: panic! (the 'impossible' happened)
BUILDSTDERR:   (GHC version 8.4.4 for s390x-ibm-linux):
BUILDSTDERR: 	pprStatics: float
BUILDSTDERR:   F32
BUILDSTDERR:   F32
BUILDSTDERR:   I32
BUILDSTDERR:   Call stack:
BUILDSTDERR:       CallStack (from HasCallStack):
BUILDSTDERR:         callStackDoc, called at compiler/utils/Outputable.hs:1150:37 in ghc:Outputable
BUILDSTDERR:         pprPanic, called at compiler/cmm/PprC.hs:525:5 in ghc:PprC
BUILDSTDERR: Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

I would test on ghc-8.6.3 too, but I haven't been able to build ghc-8.6 yet on s390x (unregisterized on unregisterized): see issue 15913.

Change History (6)

comment:1 Changed 7 months ago by juhpetersen

Architecture: Unknown/MultipleOther

comment:2 Changed 7 months ago by juhpetersen

Description: modified (diff)

comment:3 Changed 7 months ago by juhpetersen

Description: modified (diff)

comment:4 Changed 7 months ago by juhpetersen

Apparently Debian Haskell worked around this with -O0 on unregisterized builds...

https://packages.debian.org/sid/libghc-juicypixels-dev

haskell-juicypixels (3.2.9.5-4) unstable; urgency=medium

  * Compile with --ghc-options="-O0" on unregisterised 64-bit arches
    to work-around a GHC bug.

 -- Ilias Tsitsimpis <iliastsi@debian.org>  Wed, 07 Nov 2018 11:36:59 +0200

So assuming this was already reported this is probably a duplicate bug.

Last edited 7 months ago by juhpetersen (previous) (diff)

comment:5 Changed 7 months ago by monoidal

This is most likely #15853.

comment:6 Changed 7 months ago by juhpetersen

Resolution: duplicate
Status: newclosed

Thanks, @monoidal

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