#7521: Simplifier ticks exhausted when compiling Accelerate example.
---------------------------------+------------------------------------------
Reporter: eamsden | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.6.1
Keywords: | Os: Linux
Architecture: Unknown/Multiple | Failure: Compile-time crash
Difficulty: Unknown | Testcase:
Blockedby: | Blocking:
Related: |
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Changes (by simonpj):
* difficulty: => Unknown
Old description:
> When doing $ cabal build for:
>
> http://github.com/AccelerateHS/accelerate-examples (commit
> def2495a1e7bd88e444540c3494b8674da99e201)
>
> [31 of 36] Compiling SMVM.Matrix (
> examples/tests/simple/SMVM/Matrix.hs, dist_accelerate/build/accelerate-
> examples/accelerate-examples-tmp/SMVM/Matrix.o )
> ghc: panic! (the 'impossible' happened)
> (GHC version 7.6.1 for x86_64-unknown-linux):
> Simplifier ticks exhausted
> When trying UnfoldingDone base:GHC.Base.returnIO1{v r5g} [gid]
> To increase the limit, use -fsimpl-tick-factor=N (default 100)
> If you need to do this, let GHC HQ know, and what factor you needed
> To see detailed counts use -ddump-simpl-stats
> Total ticks: 27960
>
> Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
New description:
When doing $ `cabal build` for: http://github.com/AccelerateHS/accelerate-
examples (commit def2495a1e7bd88e444540c3494b8674da99e201):
{{{
[31 of 36] Compiling SMVM.Matrix (
examples/tests/simple/SMVM/Matrix.hs, dist_accelerate/build/accelerate-
examples/accelerate-examples-tmp/SMVM/Matrix.o )
ghc: panic! (the 'impossible' happened)
(GHC version 7.6.1 for x86_64-unknown-linux):
Simplifier ticks exhausted
When trying UnfoldingDone base:GHC.Base.returnIO1{v r5g} [gid]
To increase the limit, use -fsimpl-tick-factor=N (default 100)
If you need to do this, let GHC HQ know, and what factor you needed
To see detailed counts use -ddump-simpl-stats
Total ticks: 27960
}}}
--
Comment:
What `-fsimpl-tick-factor` makes it work?
Simon
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7521#comment:1>
GHC <http://www.haskell.org/ghc/>
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