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Date: Sat, 28 Apr 2007 00:56:15 -0700 (PDT)
From: "Mikhail Fursov (JIRA)" <jira@apache.org>
To: commits@harmony.apache.org
Subject: [jira] Created: (HARMONY-3784) [drlvm][jit][jet] Incorrect support
 of vmmagic types and object fields in JET compiler
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[drlvm][jit][jet] Incorrect support of vmmagic types and object fields in JET compiler
--------------------------------------------------------------------------------------

                 Key: HARMONY-3784
                 URL: https://issues.apache.org/jira/browse/HARMONY-3784
             Project: Harmony
          Issue Type: Bug
          Components: DRLVM
            Reporter: Mikhail Fursov


VMMagic implementation in JET compiler was initially prototyped but was never actually used/tested except several particular places in class initializers (DRLVM server mode uses JET compiler for <clinits>)

JET has several problems with magic implementation today:
1) Magic types are reported to GC. So if GC happend during class initialization DRLVM will fail
2) Magic types are incorrectly stored to fields on EM64T platform with compressed references mode enabled.

The only scenario affected today is GCv5 server mode support for EM64T platform where field of Address type is used.


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