#1794: map has strange unfolding, code blowup and performance loss
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Reporter: simonmar | Owner: simonmar
Type: merge | Status: new
Priority: normal | Milestone: 6.8.1
Component: Compiler | Version: 6.6.1
Severity: normal | Resolution:
Keywords: | Difficulty: Moderate (1 day)
Os: Unknown | Testcase:
Architecture: Unknown |
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Changes (by simonpj):
* owner: simonpj => simonmar
* type: bug => merge
Comment:
Fixed by
{{{
Mon Oct 29 11:10:56 GMT 2007 [EMAIL PROTECTED]
* Substantial improvement to the interaction of RULES and inlining
}}}
We should do an `-O2` perf check, and then merge to stable branch. My
nofib runs indicate a net win. I'm setting Simon M as the owner for the
perf check.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1794#comment:2>
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