JDK-6646016 : assert(_base == KlassPtr,"Not a klass pointer") in -Xcomp mode
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 7
  • Priority: P4
  • Status: Closed
  • Resolution: Duplicate
  • OS: linux
  • CPU: generic
  • Submitted: 2007-12-29
  • Updated: 2012-02-01
  • Resolved: 2008-01-09
Related Reports
Duplicate :  
JDK-6646019 - array subscript expressions become top() with -d64
Description
This assertion is observed at least on linux-i586/amd64 with both latest jdk6 (1.6.0_10-ea-b09)and jdk7 (1.7.0-ea-b24):
	#  Internal Error (/BUILD_AREA/jdk7/hotspot/src/share/vm/opto/type.hpp:1032), pid=1003, tid=1082296672
	#  Error: assert(_base == KlassPtr,"Not a klass pointer")

It occurs only in -Xcomp mode.

Testcase and hs_err file are attached.
Comments
EVALUATION While the failure mode is different, the test case for this bugid exercises the problem that is seen in 6646019.
09-01-2008