[commit: packages/integer-gmp] master: Wrap `gmpz_tdiv_{q, r, qr}_ui` to optimize `quot`/`rem` (af2ba9c)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/integer-gmp

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/af2ba9c81cf6a3223ccc74c5aa17de18138fd824/integer-gmp

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

commit af2ba9c81cf6a3223ccc74c5aa17de18138fd824
Author: Herbert Valerio Riedel <hvr at gnu.org>
Date:   Wed Jan 8 22:45:13 2014 +0100

    Wrap `gmpz_tdiv_{q,r,qr}_ui` to optimize `quot`/`rem`
    
    This is useful as `quot`/`rem` are often used with small-int divisors,
    like when computing the digits of an `Integer`. This optimization
    reduces allocations in the following `nofib` benchmarks:
    
          Program        Size    Allocs   Runtime   Elapsed  TotalMem
       -----------------------------------------------------------------
            power       +0.3%     -0.8%     -1.2%     -1.2%     +0.0%
        primetest       +0.3%     -3.9%      0.07      0.07     +0.0%
              rsa       +0.3%     -4.0%      0.02      0.02     +0.0%
           symalg       +0.2%     -1.4%      0.01      0.01     +0.0%
    
    This addresses #8647
    
    Signed-off-by: Herbert Valerio Riedel <hvr at gnu.org>


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af2ba9c81cf6a3223ccc74c5aa17de18138fd824
 GHC/Integer/GMP/Prim.hs |   17 +++++++++++++++++
 GHC/Integer/Type.lhs    |   28 +++++++++++++++++++++-------
 cbits/gmp-wrappers.cmm  |   33 +++++++++++++++++++++++++++++++++
 3 files changed, 71 insertions(+), 7 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 af2ba9c81cf6a3223ccc74c5aa17de18138fd824