JDK-7046135 : specjvm2008 crypto.rsa perf regression after 7008866
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: hs21
  • Priority: P3
  • Status: Closed
  • Resolution: Duplicate
  • OS: generic
  • CPU: generic
  • Submitted: 2011-05-18
  • Updated: 2011-05-20
  • Resolved: 2011-05-20
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JDK 8
8-poolResolved
Related Reports
Relates :  
JDK-7008866 - Missing loop predicate for loop with multiple entries
Relates :  
JDK-5091921 - Sign flip issues in loop optimizer
Description
Bug 7035946 reported a large performance regression on the specjvm2008 crypto.rsa sub-benchmark on 64-bit intel/amd cpus (linux and windows) in jdk7-b136.  One part of that regression is due to the changes for '7008866 Missing loop predicate for loop with multiple entries'.