#7286: GHC doesn't optimise away primitive identity conversions
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Reporter: rl | Owner: igloo
Type: bug | Status: new
Priority: high | Milestone: 7.8.1
Component: Compiler | Version: 7.7
Keywords: | Os: Unknown/Multiple
Architecture: Unknown/Multiple | Failure: Compile-time performance bug
Difficulty: Unknown | Testcase:
Blockedby: | Blocking:
Related: |
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Comment(by ian@…):
commit e3d78899ce336e8637ae231550c04f0f68bca2aa
{{{
Author: Ian Lynagh <i...@well-typed.com>
Date: Sun Oct 21 13:48:09 2012 +0100
Add some more primop rules; fixes #7286
As well as the rules mentioned in the ticket, I've also gone through
and added some more rules that might be useful in other cases.
compiler/prelude/PrelRules.lhs | 56
++++++++++++++++++++++++++++++++--------
1 files changed, 45 insertions(+), 11 deletions(-)
}}}
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7286#comment:4>
GHC <http://www.haskell.org/ghc/>
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