#1397: GHC blows up while compiling Language.Haskell.TH.Syntax with -O2
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Reporter: simonmar | Owner:
Type: bug | Status: new
Priority: high | Milestone: 6.8
Component: Compiler | Version: 6.7
Severity: normal | Keywords:
Difficulty: Unknown | Os: Unknown
Testcase: | Architecture: Unknown
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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.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1397>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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