JDK-7006044 : materialize cheap non-oop pointers on 64-bit SPARC
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: hs20
  • Priority: P3
  • Status: Closed
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2010-12-10
  • Updated: 2011-04-23
  • Resolved: 2011-04-23
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JDK 6 JDK 7 Other
6u25Fixed 7Fixed hs20Fixed
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Description
After 6961690 we load non-oop pointers for the constant table which could easily be materialized in a few instructions.  This happens commonly with the init of the header word in an allocation.

Comments
EVALUATION http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/7737fa7ec2b5
2010-12-15