Crash in regression test for 6440479

#
# An unexpected error has been detected by Java Runtime Environment:
#
# Internal Error (43113F2C2932215353454D424C45523F491418160E43505009B5), pid=26182, tid=3985447840
#
# Java VM: Java HotSpot(TM) Client VM (1.6.0-rc-b90 mixed mode)
# An error report file with more information is saved as hs_err_pid26182.log
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
#


# To suppress the following error report, specify this argument
# after -XX: or in .hotspotrc: SuppressErrorAt=/c1_LIRAssembler_i486.cpp:2542
#
# An unexpected error has been detected by Java Runtime Environment:
#
# Internal Error (/ramdisk/PrtBuildDir/workspace/src/cpu/i486/vm/c1_LIRAssembler_i486.cpp:2542), pid=19687, tid=3984960416
# Error: ShouldNotReachHere()
#
# Java VM: Java HotSpot(TM) Client VM (20070413155739.dcubed.service_hs_b12_merge.6-fastdebug mixed mode linux-x86)
# An error report file with more information is saved as:
# /tmp/356927.1.all.q/gee.gridadm/15744/results/closed/compiler/6440479/VirtualDispatch/hs_err_pid19687.log
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.

hs_err file is attached.
See Comments field for details.