review (S) for 6978249: spill between cpu and fpu registers when those moves are fast

David Dabbs dmdabbs at gmail.com
Thu Aug 19 13:49:43 PDT 2010


Tom Rodriguez wrote:

--8< snip
[in addition to the register spilling changes]
I also moved the logic for PrintFlagsFinal since the initialization of
several subsystems may change some flag values which will be missed by
the current location.  Tested with scimark, ctw and the nsk tests on
32 and 64 bit.


Does the "bundling" of the PrintFlagsFinal tweaks with the spilling mods 
mean the former won't make it into JDK6 until HS19 lands there?


Thank you,

David


p.s. Would this be the right list to post questions regarding HS flags
appropriate for 
maximizing HotSpot performance on Nehalem CPUs?






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