#5539: GHC panic - Simplifier ticks exhausted
---------------------------------+------------------------------------------
Reporter: hvr | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.3
Resolution: | Keywords:
Testcase: | Blockedby:
Difficulty: | Os: Linux
Blocking: | Architecture: x86_64 (amd64)
Failure: Compile-time crash |
---------------------------------+------------------------------------------
Changes (by daniel.is.fischer):
* status: closed => new
* resolution: fixed =>
Comment:
ghc-7.3.20110121 fails tc095(optasm):
{{{
=====> tc095(optasm) 159 of 3047 [0, 1, 0]
cd ./typecheck/should_compile && '/home/dafis/GHC/bghc/bindisttest/install
dir/bin/ghc' -fforce-recomp -dcore-lint -dcmm-lint -dno-debug-output -no-
user-package-conf -rtsopts -fno-ghci-history -c tc095.hs -O -fasm -fno-
warn-incomplete-patterns >tc095.comp.stderr 2>&1
Compile failed (status 256) errors were:
ghc: panic! (the 'impossible' happened)
(GHC version 7.3.20111021 for x86_64-unknown-linux):
Simplifier ticks exhausted
When trying UnfoldingDone a_sYH{v} [lid]
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: 90320
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
*** unexpected failure for tc095(optasm)
}}}
No panic with ghc-7.3.20111019 (fingerprints attached).
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5539#comment:5>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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