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Date: Thu, 2 Nov 2006 05:12:19 -0800 (PST)
From: "Mikhail Fursov (JIRA)" <jira@apache.org>
To: harmony-commits@incubator.apache.org
Subject: [jira] Commented: (HARMONY-2056) [drlvm][jit] Jitrino.OPT's
 bpp.version=1 does not insert a polling code to every backedge
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    [ http://issues.apache.org/jira/browse/HARMONY-2056?page=comments#action_12446597 ] 
            
Mikhail Fursov commented on HARMONY-2056:
-----------------------------------------

Options to run and get the log:
java.exe -Djit.CS_OPT.f.filter=BBPBug::foo -Xem:opt -Djit.f.arg.codegen.bbp.version=1 -Djit.f.arg.log=ct,irdump,dotdump  BBPBug

> [drlvm][jit] Jitrino.OPT's bpp.version=1 does not insert a polling code to every backedge
> -----------------------------------------------------------------------------------------
>
>                 Key: HARMONY-2056
>                 URL: http://issues.apache.org/jira/browse/HARMONY-2056
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>            Reporter: Mikhail Fursov
>            Priority: Minor
>
> This bug is not critical, because it's about bbp.version=1 mode and default mode is bbp.version=6.
> I found this problem while debugging more critical BBP bug and tried version=1 for my temporary needs.
> In BBP documentation (in sources) I found:
> // version of BBPolling:
>     //  0 - must be discarded in runImpl()
>     //  1 - insert bbpCFG at all backedges
>     
> So I expecting to have BBP code generated for this test:
> public class BBPBug {
>    public static void main(String[] args) {
>         new BBPBug().foo();
>     }
>     void foo() {
>         int i=0;
>         while (i<100) {
>             synchronized (this) {
>                 i++;
>             }
>         }
>     }
> }
> The BBP code is not generated.

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