JDK-6975855 : don't emit deopt MH handler in C1 if not required
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: hs19
  • Priority: P4
  • Status: Closed
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2010-08-10
  • Updated: 2011-04-23
  • Resolved: 2011-04-23
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JDK 6 JDK 7 Other
6u21pFixed 7Fixed hs19Fixed
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The changes of 6926782 don't emit the deopt MH handler in C2.  This CR implements the same for C1.

EVALUATION http://hg.openjdk.java.net/jdk7/hotspot-rt/hotspot/rev/4a665be40fd3

EVALUATION http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/4a665be40fd3

EVALUATION Record emitted MethodHandle invokes and emit deopt MH handler conditionally.

SUGGESTED FIX http://cr.openjdk.java.net/~twisti/6975855/webrev.01/ *** (#1 of 1): [ UNSAVED ] ###@###.###