1. 15 Jun, 2020 1 commit
    • Simon Peyton Jones's avatar
      Make arityType deal with join points · eb589645
      Simon Peyton Jones authored
      As Note [Eta-expansion and join points] describes,
      this patch makes arityType deal correctly with join points.
      What was there before was not wrong, but yielded lower
      arities than it could.
      
      Fixes #18328
      
      In base GHC this makes no difference to nofib.
      
              Program           Size    Allocs   Runtime   Elapsed  TotalMem
      --------------------------------------------------------------------------------
               n-body          -0.1%     -0.1%     -1.2%     -1.1%      0.0%
      --------------------------------------------------------------------------------
                  Min          -0.1%     -0.1%    -55.0%    -56.5%      0.0%
                  Max          -0.0%      0.0%    +16.1%    +13.4%      0.0%
       Geometric Mean          -0.0%     -0.0%    -30.1%    -31.0%     -0.0%
      
      But it starts to make real difference when we land the change to the
      way mkDupableAlts handles StrictArg, in fixing #13253 and friends.
      I think this is because we then get more non-inlined join points.
      eb589645
  2. 14 Jun, 2020 7 commits
  3. 13 Jun, 2020 32 commits