[GHC] #11568: Regression in nofib/shootout/k-nucleotide
GHC
ghc-devs at haskell.org
Tue Jan 10 07:12:43 UTC 2017
#11568: Regression in nofib/shootout/k-nucleotide
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Reporter: simonmar | Owner: dfeuer
Type: bug | Status: new
Priority: high | Milestone: 8.2.1
Component: Compiler | Version: 7.10.3
Resolution: | Keywords: JoinPoints
Operating System: Unknown/Multiple | Architecture:
Type of failure: Runtime | Unknown/Multiple
performance bug | Test Case:
Blocked By: 12988 | Blocking:
Related Tickets: | Differential Rev(s):
Wiki Page: |
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Comment (by lukemaurer):
Looks to me like Simon's instinct was correct. Every instance of `$j1`
remains a join point now, since those pesky contexts that were getting put
around the calls are getting put into `$j1` instead.
In fact, `k-nucleotide` is one of the poster children for join points—it
gets an 86.0% decrease in allocs.
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11568#comment:10>
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