harmony-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Egor Pasko (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-1788) [drlvm][jit][abcd] Inequality graph generation from HIR
Date Mon, 09 Oct 2006 16:05:21 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-1788?page=all ]

Egor Pasko updated HARMONY-1788:
--------------------------------

    Attachment: vm.zip

the new files

> [drlvm][jit][abcd] Inequality graph generation from HIR
> -------------------------------------------------------
>
>                 Key: HARMONY-1788
>                 URL: http://issues.apache.org/jira/browse/HARMONY-1788
>             Project: Harmony
>          Issue Type: New Feature
>          Components: DRLVM
>         Environment: all
>            Reporter: Egor Pasko
>         Attachments: enable-inequality-graph-building.patch.txt, vm.zip
>
>
> new files [vm.zip]:
> vm/jitrino/src/optimizer/abcd/AbcdFlags.h
> vm/jitrino/src/optimizer/abcd/insertpi.cpp
> vm/jitrino/src/optimizer/abcd/classic_abcd.h
> vm/jitrino/src/optimizer/abcd/insertpi.h
> vm/jitrino/src/optimizer/abcd/classic_abcd.cpp
> vm/jitrino/config/ia32/abcd_static.emconf
> This issue depends on HARMONY-1564.
> Features:
> * new optimization pass added (classic_abcd), off by default
> * old optimization pass (abcd) is preserved to work with no change
>   (with bug fixed by Naveen in HARMONY-1564)
>   the fix should NOT visibly affect anyone (!!!)
> * new EM config file for easier ABCD development (abcd_static.emconf)
>   (use java -Xem:abcd_static Hello)
> * Pi instructions are now inserted by the separate class (InsertPi)
>   that is reused between both old and new ABCD algorithms
> * Inequality graph can be printed to a .dot file on request.
>   Do it like this for method "main":
>   java -Xem:abcd_static -Djit.p.filter=.main -Djit.p.arg.log=ct,irdump,dotdump
>   and find inequality.graph.dot
>   ("dot -Tpng inequality.graph.dot > viewme.png")
> * checked on gcc 3.3.3 Linux/ia32
> * HelloWorld passed in the new mode, does not affect other modes
> * against r454400
> Instructions on how to apply both contributions. 
> Suppose you have all files in working_vm/abcd_update:
> abcd.patch           (Naveen, HARMONY-1564)
> abcd-original.tar.gz (Egor, HARMONY-1564)
> naveen_2.patch       (Naveen, HARMONY-1564)
> enable-inequality-graph-building.patch.txt
> vm.zip
> $ cd working_vm
> $ patch -p0 <abcd_update/abcd.patch
> $ tar zxvf abcd_update/abcd-original.tar.gz
> $ patch -p0 <../abcd_update/naveen_2.patch
> $ mv * ../vm/jitrino/src/optimizer/abcd/
> $ cd ..
> $ rm -rf abcd-original/
> $ unzip abcd_update/vm.zip
> $ patch -p1 <abcd_update/enable-inequality-graph-building.patch.txt
> What is left to do for the new ABCD:
> * teach the optimization to invoke the solver 
>   (detect array lengths, bounds checking operands)
> * acquire not-a-small amount of tests
> * fix bugs :)
> * improve the algorithm supporting semantics of more more operations 
>   such as Op_Conv, etc.

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message