JDK-7200264 : 7192963 changes disabled shift vectors
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: hs25
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2012-09-21
  • Updated: 2014-05-05
  • Resolved: 2012-09-26
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JDK 7 JDK 8 Other
7u40Fixed 8Fixed hs24Fixed
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Description
7192963 changes disabled shift vectors generation:

java -server -Xbatch -Xmx64m -XX:-TieredCompilation -XX:CICompilerCount=1 -XX:+PrintCompilation -XX:+TraceNewVectors TestIntVect

Testing Integer vectors
Warmup
    845    1    b        TestIntVect::test_sllv (23 bytes)
    876    2    b        TestIntVect::test_srlv (23 bytes)
    884    3    b        TestIntVect::test_srav (23 bytes)
    899    4    b        TestIntVect::test_sllc (24 bytes)
    906    5    b        TestIntVect::test_srlc (24 bytes)
    914    6    b        TestIntVect::test_srac (24 bytes)
    922    7    b        TestIntVect::test_sllc_n (24 bytes)
    929    8    b        TestIntVect::test_srlc_n (24 bytes)
    937    9    b        TestIntVect::test_srac_n (24 bytes)

Comments
EVALUATION http://hg.openjdk.java.net/hsx/hotspot-comp/hotspot/rev/06f52c4d0e18
26-09-2012