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| author | Giovanni Campagna <gcampagn@cs.stanford.edu> | 2016-07-15 19:47:26 +0100 |
|---|---|---|
| committer | Simon Marlow <marlowsd@gmail.com> | 2016-07-20 16:35:23 +0100 |
| commit | cf989ffe490c146be4ed0fd7e0c00d3ff8fe1453 (patch) | |
| tree | 1bdf626d6e713506852bf0015dae1e1be7d280c0 /rts/StgMiscClosures.cmm | |
| parent | 93acc02f7db7eb86967b4ec586359f408d62f75d (diff) | |
| download | haskell-cf989ffe490c146be4ed0fd7e0c00d3ff8fe1453.tar.gz | |
Compact Regions
This brings in initial support for compact regions, as described in the
ICFP 2015 paper "Efficient Communication and Collection with Compact
Normal Forms" (Edward Z. Yang et.al.) and implemented by Giovanni
Campagna.
Some things may change before the 8.2 release, but I (Simon M.) wanted
to get the main patch committed so that we can iterate.
What documentation there is is in the Data.Compact module in the new
compact package. We'll need to extend and polish the documentation
before the release.
Test Plan:
validate
(new test cases included)
Reviewers: ezyang, simonmar, hvr, bgamari, austin
Subscribers: vikraman, Yuras, RyanGlScott, qnikst, mboes, facundominguez, rrnewton, thomie, erikd
Differential Revision: https://phabricator.haskell.org/D1264
GHC Trac Issues: #11493
Diffstat (limited to 'rts/StgMiscClosures.cmm')
| -rw-r--r-- | rts/StgMiscClosures.cmm | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/rts/StgMiscClosures.cmm b/rts/StgMiscClosures.cmm index 905f81ec2e..6c1edf70b5 100644 --- a/rts/StgMiscClosures.cmm +++ b/rts/StgMiscClosures.cmm @@ -614,6 +614,18 @@ INFO_TABLE_CONSTR(stg_MVAR_TSO_QUEUE,2,0,0,PRIM,"MVAR_TSO_QUEUE","MVAR_TSO_QUEUE { foreign "C" barf("MVAR_TSO_QUEUE object entered!") never returns; } /* ---------------------------------------------------------------------------- + COMPACT_NFDATA (a blob of data in NF with no outgoing pointers) + + Just return immediately because the structure is in NF already + ------------------------------------------------------------------------- */ + +INFO_TABLE( stg_COMPACT_NFDATA, 0, 0, COMPACT_NFDATA, "COMPACT_NFDATA", "COMPACT_NFDATA") + () +{ + return (); +} + +/* ---------------------------------------------------------------------------- CHARLIKE and INTLIKE closures. These are static representations of Chars and small Ints, so that |