[commit: ghc] master: Mark *FB functions INLINE[0] (Fixes #13001) (09bce7a)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/09bce7accd330e99b1667f8b4eda7def722d6f0c/ghc

>---------------------------------------------------------------

commit 09bce7accd330e99b1667f8b4eda7def722d6f0c
Author: Takano Akio <tak at anoak.io>
Date:   Tue Jan 10 14:36:00 2017 -0500

    Mark *FB functions INLINE[0] (Fixes #13001)
    
    When fusion rules successfully fire, we are left with calls to
    *FB functions. They are higher-order functions, and therefore they
    often benefit from inlining. This is particularly important when
    then final consumer is a strict fold (foldl', length, etc.), because
    not inlining these functions means allocating a function closure
    for each element in the list, which often is more costly than what
    fusion eliminates.
    
    Nofib shows a slight increase in the binary size:
    
    ------------------------------------------------------------------------
           Program           Size    Allocs   Runtime   Elapsed  TotalMem
    ------------------------------------------------------------------------
       gen_regexps          -0.3%      0.0%     0.000     0.000      0.0%
            puzzle          +0.8%      0.0%     0.089     0.090      0.0%
           reptile          +0.8%     -0.0%     0.008     0.008      0.0%
    ------------------------------------------------------------------------
               Min          -0.3%     -0.0%     -7.3%     -7.1%      0.0%
               Max          +0.8%     +0.0%     +7.8%     +7.7%     +1.8%
    Geometric Mean          +0.0%     -0.0%     +0.2%     +0.2%     +0.0%
    ------------------------------------------------------------------------
    
    Reviewers: simonpj, austin, hvr, bgamari
    
    Reviewed By: simonpj
    
    Subscribers: simonpj, thomie
    
    Differential Revision: https://phabricator.haskell.org/D2951
    
    GHC Trac Issues: #13001


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09bce7accd330e99b1667f8b4eda7def722d6f0c
 libraries/base/Data/Maybe.hs                  |  2 +-
 libraries/base/Data/OldList.hs                |  2 +-
 libraries/base/GHC/Base.hs                    |  2 +-
 libraries/base/GHC/Enum.hs                    | 27 ++++++++++-------
 libraries/base/GHC/Exts.hs                    |  1 +
 libraries/base/GHC/List.hs                    | 42 ++++++++++++++++++++-------
 testsuite/tests/perf/should_run/T13001.hs     |  7 +++++
 testsuite/tests/perf/should_run/T13001.stdout |  1 +
 testsuite/tests/perf/should_run/all.T         |  8 +++++
 9 files changed, 69 insertions(+), 23 deletions(-)

Diff suppressed because of size. To see it, use:

    git diff-tree --root --patch-with-stat --no-color --find-copies-harder --ignore-space-at-eol --cc 09bce7accd330e99b1667f8b4eda7def722d6f0c