#4330: Weird runtime Crash
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Reporter: nomeata | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 6.12.1 | Keywords:
Testcase: | Blockedby:
Os: Linux | Blocking:
Architecture: x86_64 (amd64) | Failure: Runtime crash
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I’m sure you like such summaries... but I could not do any better.
In the attached tarball is some code and a test.sh that can be used to
show the bug. I tried to further reduce the size of the test case, but I’m
in a position where any of numerous seemingly independent changes would
cause the crash to not happen, including removing an unused binding of the
form "blubb <- return undefined", merging two Modules, removing unused
imports or removing unused definitions.
Also disabling -O2 or -prof hides the patch.
I have attached my attempts to reduce the size of the testcase as a patch.
Some code positions that can trigger or untrigger the bug are marked.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4330>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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