ghc fails to terminate with -O2 or greater
GHC 7.6.1 on x86_64-lines from Debian's experimental repo (Debian unstable is currently frozen in preparation for the new release and therefore the Debian Haskell team is uploading to experimental).
I have 50 lines of code across two files and then I compile these with -O1 the compile competes in about 10 seconds. However if I compile it with -O2 or greater, the compile does not seem to terminate. I've left it for as long as 1o minutes and the compile process uses 100% CPU and its memory usage seems to grow slowly so that after 10 minutes its using 5% of my machine's 8Gig or memory.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.6.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
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| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |