#7499: Case-inspecting unboxed unit causes codegen crash
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Reporter: rl | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.6.1 | Keywords:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
Failure: Compile-time crash | Blockedby:
Blocking: | Related:
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Comment(by ChrisN):
This appears to be fixed in 7.7
{{{
[Fri 15:24]/tmp>ghc-7.6.1 --make crash.hs -O2 -fforce-recomp
[1 of 1] Compiling Main ( crash.hs, crash.o )
ghc: panic! (the 'impossible' happened)
(GHC version 7.6.1 for x86_64-unknown-linux):
compiler/codeGen/CgCase.lhs:572:15-61: Irrefutable pattern failed
for pattern ((CoreSyn.DEFAULT,
deflt_absC) : others)
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
[Fri 15:24]/tmp>ghc-7.7.20121207 --make crash.hs -O2 -fforce-recomp
[1 of 1] Compiling Main ( crash.hs, crash.o )
Linking crash ...
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7499#comment:1>
GHC <http://www.haskell.org/ghc/>
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