JDK-6732732 : CTW with EA: assert(n != 0L,"Bad immediate dominator info.")
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: hs14
  • Priority: P4
  • Status: Closed
  • Resolution: Fixed
  • OS: solaris
  • CPU: x86
  • Submitted: 2008-08-01
  • Updated: 2011-03-08
  • Resolved: 2011-03-08
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JDK 6 JDK 7 Other
6u14Fixed 7Fixed hs14Fixed
on x64:

% java -d64 -XX:CICompilerCount=8 -XX:+DoEscapeAnalysis -XX:+UseCompressedOops -XX:-CheckCompressedOops -XX:CompileThreshold=100 -Xss4m -Xverify:all -XX:+CompileTheWorld -XX:CompileTheWorldStartAt=1 -Xbootclasspath/p:/net/vmsqe.sfbay/export/backup/testbase/CompileTheWorld/jarfiles/Ev_3p_common.jar 
CompileTheWorld (2788) : symantec/itools/awt/DirectionButtonBeanInfo
CompileTheWorld (2789) : symantec/itools/awt/FormattedTextField$Key
CompileTheWorld (2790) : symantec/itools/awt/FormattedTextField
# To suppress the following error report, specify this argument
# after -XX: or in .hotspotrc:  SuppressErrorAt=/loopnode.hpp:634
# A fatal error has been detected by the Java Runtime Environment:
#  Internal Error (/tmp/jprt-jprtadm/P1/B/230141.kvn/source/src/share/vm/opto/loopnode.hpp:634), pid=17145, tid=17
#  Error: assert(n != 0L,"Bad immediate dominator info.")

Current CompileTask:
C2:21739   b  symantec.itools.awt.FormattedTextField.applyMask(Ljava/lang/String;)Ljava/lang/String; (291 bytes)

SUGGESTED FIX Add missing edge as a globally escaping object.

EVALUATION During Connection Graph construction the edge to a call's return value is missing if the returned object is unknown (not an argument and not an allocation).

EVALUATION http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/892493c3d862