[GHC] #5237: Inefficient code generated for x^2
GHC
cvs-ghc at haskell.org
Mon Sep 26 09:44:03 CEST 2011
#5237: Inefficient code generated for x^2
-------------------------------+--------------------------------------------
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
-------------------------------+--------------------------------------------
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
More information about the Glasgow-haskell-bugs
mailing list