Both 32-bits and 64-bits VM have this problem:

% /java/re/jdk/7/latest/binaries/solaris-amd64/fastdebug/bin/java -server -XX:-UseLoopSafepoints -Xcomp t
VM option '-UseLoopSafepoints'
# To suppress the following error report, specify this argument
# after -XX: or in .hotspotrc: SuppressErrorAt=/phaseX.cpp:775
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/BUILD_AREA/jdk7/hotspot/src/share/vm/opto/phaseX.cpp:775), pid=13672, tid=20
# Error: assert(false,"Parse::remove_useless_nodes missed this node")
#
# Java VM: Java HotSpot(TM) Server VM (14.0-b06-fastdebug compiled mode solaris-x86 )
# An error report file with more information is saved as:
# /export/kvn/build/6766316/solaris_amd64_compiler2/fastdebug/hs_err_pid13672.log
#

% more hs_err_pid13672.log
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/BUILD_AREA/jdk7/hotspot/src/share/vm/opto/phaseX.cpp:775), p
id=13672, tid=20
# Error: assert(false,"Parse::remove_useless_nodes missed this node")
#
# Java VM: Java HotSpot(TM) Server VM (14.0-b06-fastdebug compiled mode solaris-
x86 )
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
#

--------------- T H R E A D ---------------

Current thread (0x0824b000): JavaThread "CompilerThread0" daemon [_thread_in_na
tive, id=20, stack(0xb49f4000,0xb4a34000)]

Stack: [0xb49f4000,0xb4a34000], sp=0xb4a313c8, free space=244k

Current CompileTask:
C2: 2 b java.lang.Thread.init(Ljava/lang/ThreadGroup;Ljava/lang/Runnable;Lja
va/lang/String;J)V (202 bytes)


--------------- P R O C E S S ---------------

Java Threads: ( => current thread )
  0x0824d000 JavaThread "CompilerThread1" daemon [_thread_blocked, id=21, stack(
0xb49b2000,0xb49f2000)]
=>0x0824b000 JavaThread "CompilerThread0" daemon [_thread_in_native, id=20, stac
k(0xb49f4000,0xb4a34000)]
  0x08249400 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=19, stac
k(0xb4a36000,0xb4a86000)]
  0x08227800 JavaThread "Finalizer" daemon [_thread_blocked, id=18, stack(0xb4a8
8000,0xb4ad8000)]
  0x08226000 JavaThread "Reference Handler" daemon [_thread_blocked, id=17, stac
k(0xb4ada000,0xb4b2a000)]
  0x0807bc00 JavaThread "main" [_thread_blocked, id=2, stack(0xfc8da000,0xfc92a0
00)]