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From "Mikhail Fursov (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-3076) [drlvm][jit] Loop unrolling optimization implementation in Jitirno.OPT
Date Mon, 29 Jan 2007 13:53:49 GMT
[drlvm][jit] Loop unrolling optimization implementation in Jitirno.OPT
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                 Key: HARMONY-3076
                 URL: https://issues.apache.org/jira/browse/HARMONY-3076
             Project: Harmony
          Issue Type: New Feature
          Components: DRLVM
            Reporter: Mikhail Fursov
         Attachments: unroll_1.zip

Here is an implementation of loop unrolling optimization.
The patch enables it in all modes with Jitrino.OPT we have.

There are some TODOs, described in loop_unroll.cpp files, read it if you are interested to
write minitests to see performance improvements.

My minitests shows that we have ~50% improvement on classic BubbleSort application and ~15%
for Arrays.sort when dynamic edge profile is used.

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