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Posted to commits@harmony.apache.org by "Mikhail Fursov (JIRA)" <ji...@apache.org> on 2008/01/25 11:02:36 UTC
[jira] Created: (HARMONY-5425) [drlvm][jit][opt] Spillgen ignores
intitial constrains sometimes
[drlvm][jit][opt] Spillgen ignores intitial constrains sometimes
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Key: HARMONY-5425
URL: https://issues.apache.org/jira/browse/HARMONY-5425
Project: Harmony
Issue Type: Bug
Components: DRLVM
Reporter: Mikhail Fursov
Assignee: Mikhail Fursov
I found that in some scenarios with high register pressure (I can't neither publish the sources or create a microtest) spillgen reassigns an operand from callee-save register to caller-save making its value invalid after a CALL
The problem method was originally found in a method: org/apache/harmony/awt/gl/Crossing::intersectCubic
I apply the patch that fixes the problem.
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[jira] Commented: (HARMONY-5425) [drlvm][jit][opt] Spillgen ignores
intitial constrains sometimes
Posted by "Alexey Varlamov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-5425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12563065#action_12563065 ]
Alexey Varlamov commented on HARMONY-5425:
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Mikhail, the checkin does not include testCrossCallsLiveness() verification from the attached patch - is it intentionally dropped?
> [drlvm][jit][opt] Spillgen ignores intitial constrains sometimes
> ----------------------------------------------------------------
>
> Key: HARMONY-5425
> URL: https://issues.apache.org/jira/browse/HARMONY-5425
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Mikhail Fursov
> Assignee: Mikhail Fursov
> Attachments: spill.diff
>
>
> I found that in some scenarios with high register pressure (I can't neither publish the sources or create a microtest) spillgen reassigns an operand from callee-save register to caller-save making its value invalid after a CALL
> The problem method was originally found in a method: org/apache/harmony/awt/gl/Crossing::intersectCubic
> I apply the patch that fixes the problem.
--
This message is automatically generated by JIRA.
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You can reply to this email to add a comment to the issue online.
[jira] Commented: (HARMONY-5425) [drlvm][jit][opt] Spillgen ignores
intitial constrains sometimes
Posted by "Alexey Varlamov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-5425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12563108#action_12563108 ]
Alexey Varlamov commented on HARMONY-5425:
------------------------------------------
Hmm, I see no platform specific there - does it mean there is smth wrong happening on x86_64? Maybe just ifdef it for x86 for now and file another bug against 64-bit?
> [drlvm][jit][opt] Spillgen ignores intitial constrains sometimes
> ----------------------------------------------------------------
>
> Key: HARMONY-5425
> URL: https://issues.apache.org/jira/browse/HARMONY-5425
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Mikhail Fursov
> Assignee: Mikhail Fursov
> Attachments: spill.diff
>
>
> I found that in some scenarios with high register pressure (I can't neither publish the sources or create a microtest) spillgen reassigns an operand from callee-save register to caller-save making its value invalid after a CALL
> The problem method was originally found in a method: org/apache/harmony/awt/gl/Crossing::intersectCubic
> I apply the patch that fixes the problem.
--
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[jira] Updated: (HARMONY-5425) [drlvm][jit][opt] Spillgen ignores
intitial constrains sometimes
Posted by "Mikhail Fursov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-5425?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mikhail Fursov updated HARMONY-5425:
------------------------------------
Attachment: spill.diff
> [drlvm][jit][opt] Spillgen ignores intitial constrains sometimes
> ----------------------------------------------------------------
>
> Key: HARMONY-5425
> URL: https://issues.apache.org/jira/browse/HARMONY-5425
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Mikhail Fursov
> Assignee: Mikhail Fursov
> Attachments: spill.diff
>
>
> I found that in some scenarios with high register pressure (I can't neither publish the sources or create a microtest) spillgen reassigns an operand from callee-save register to caller-save making its value invalid after a CALL
> The problem method was originally found in a method: org/apache/harmony/awt/gl/Crossing::intersectCubic
> I apply the patch that fixes the problem.
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[jira] Resolved: (HARMONY-5425) [drlvm][jit][opt] Spillgen ignores
intitial constrains sometimes
Posted by "Mikhail Fursov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-5425?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mikhail Fursov resolved HARMONY-5425.
-------------------------------------
Resolution: Fixed
committed revision 615453
> [drlvm][jit][opt] Spillgen ignores intitial constrains sometimes
> ----------------------------------------------------------------
>
> Key: HARMONY-5425
> URL: https://issues.apache.org/jira/browse/HARMONY-5425
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Mikhail Fursov
> Assignee: Mikhail Fursov
> Attachments: spill.diff
>
>
> I found that in some scenarios with high register pressure (I can't neither publish the sources or create a microtest) spillgen reassigns an operand from callee-save register to caller-save making its value invalid after a CALL
> The problem method was originally found in a method: org/apache/harmony/awt/gl/Crossing::intersectCubic
> I apply the patch that fixes the problem.
--
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[jira] Commented: (HARMONY-5425) [drlvm][jit][opt] Spillgen ignores
intitial constrains sometimes
Posted by "Mikhail Fursov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-5425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12563102#action_12563102 ]
Mikhail Fursov commented on HARMONY-5425:
-----------------------------------------
Alexey, the check I wrote was tested on 32-bit platform only. I do not included it into commit because of problems with it on EM64T.
> [drlvm][jit][opt] Spillgen ignores intitial constrains sometimes
> ----------------------------------------------------------------
>
> Key: HARMONY-5425
> URL: https://issues.apache.org/jira/browse/HARMONY-5425
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Mikhail Fursov
> Assignee: Mikhail Fursov
> Attachments: spill.diff
>
>
> I found that in some scenarios with high register pressure (I can't neither publish the sources or create a microtest) spillgen reassigns an operand from callee-save register to caller-save making its value invalid after a CALL
> The problem method was originally found in a method: org/apache/harmony/awt/gl/Crossing::intersectCubic
> I apply the patch that fixes the problem.
--
This message is automatically generated by JIRA.
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You can reply to this email to add a comment to the issue online.