JDK-6525524 : Revive OptoScheduling on x86 platforms
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 7
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2007-02-15
  • Updated: 2010-04-02
  • Resolved: 2007-05-24
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Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

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JDK 6 JDK 7 Other
6u4Fixed 7Fixed hs10Fixed
Related Reports
Relates :  
When enabled on x86 platforms, OptoScheduling often crashes.  This bug is intended to encompass all C2 scheduling problems resulting in VM failure.

Additional scheduling cleanups may also be addressed.

SUGGESTED FIX PRT webrev for message cleanup: http://prt-web.sfbay.sun.com/net/prt-archiver.sfbay/data/archived_workspaces/main/c2_baseline/2007/20070420153449.rasbold.c2_baseline0/workspace/webrevs/webrev-2007.04.20/index.html

SUGGESTED FIX PRT webrev for code deletion: http://prt-web.sfbay.sun.com/net/prt-archiver.sfbay/data/archived_workspaces/main/c2_baseline/2007/20070411070330.rasbold.c2_baseline0/workspace/webrevs/webrev-2007.04.11/index.html

SUGGESTED FIX PRT webrev for crash fixes: http://prt-web.sfbay.sun.com/net/prt-archiver.sfbay/data/archived_workspaces/main/c2_baseline/2007/20070409150054.rasbold.c2_baseline0/workspace/webrevs/webrev-2007.04.09/index.html

EVALUATION The are roughly four parts to this fix: elimination of crashes, deletion of dead code, refactoring of parameters, and (possibly) fixing of any missed dependecncies.