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
The Version table provides details related to the release that this issue/RFE will be addressed.
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.
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.
Comments
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
23-04-2007
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
13-04-2007
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
10-04-2007
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.