GHC blows up while compiling Language.Haskell.TH.Syntax with -O2
When compiling Language.Haskell.TH.Syntax, GHC grows to over 2Gb here on x86-64. This is a stage1 compiler, built by GHC 6.6.1. This bug has apparently been introduced recently, because we're seeing out-of-memory errors where we weren't previously, but I haven't been able to track down when it was introduced yet.
Looking at the -v2 output, the Core size jumps first for FloatInward (3x), and then for LiberateCase (10x). After LiberateCase, GHC keeps on growing - perhaps there's also a space leak exacerbating the problem.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 6.7 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | high |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | Unknown |
| Architecture | Unknown |