#5237: Inefficient code generated for x^2
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Reporter: scpmw | Owner:
Type: bug | Status: patch
Priority: normal | Milestone: 7.4.1
Component: libraries/base | Version: 7.0.3
Keywords: | Testcase:
Blockedby: | Difficulty:
Os: Linux | Blocking:
Architecture: x86_64 (amd64) | Failure: Runtime performance bug
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Comment(by simonpj):
The usual approach is to say `{-# NOINLINE [1] #-}` on functions that you
want to match on the LHS of rules. Did you try that? Or, can you be more
specific about what isn't firing?
Thanks for looking at this.
Simon
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5237#comment:5>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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