JDK-6981773 : incorrect fill value with OptimizeFill
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: hs19
  • Priority: P3
  • Status: Closed
  • Resolution: Fixed
  • OS: solaris_9
  • CPU: sparc
  • Submitted: 2010-09-02
  • Updated: 2011-03-08
  • Resolved: 2011-03-08
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JDK 6 JDK 7 Other
6u21pFixed 7Fixed hs19Fixed
Related Reports
Relates :  
JDK-4809552 - Optimize Arrays.fill(...)
Description
The sparc assembly for the new fill logic doesn't fully initialize the value register in some paths resulting in incorrectly filled arrays.  There are several nightly failures from this:

  nsk/logging/XMLFormatter/format/format001
  nsk/logging/XMLFormatter/format/format002
  java/util/Arrays/Sorting.java
  java/util/ResourceBundle/Control/XMLResourceBundleTest.java

The fix is to initialize the value slightly earlier.
Comments
EVALUATION http://hg.openjdk.java.net/jdk7/hotspot-gc/hotspot/rev/f353275af40e
09-10-2010
EVALUATION http://hg.openjdk.java.net/hsx/hsx19/baseline/rev/5b0eb275c3d0
08-10-2010
EVALUATION http://hg.openjdk.java.net/jdk7/hotspot-rt/hotspot/rev/f353275af40e
28-09-2010
EVALUATION 6981773: incorrect fill value with OptimizeFill Reviewed-by: kvn, twisti The sparc assembly for the new fill logic doesn't fully initialize the value register in the check_fill_8_bytes path resulting in incorrectly filled arrays for certain lengths. Tested with failing tests from nightly.
03-09-2010
EVALUATION http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/f353275af40e
03-09-2010