The test DWhet fails starting from b42 Tiger. I attached the test files.

% /java/re/jdk/1.5.0/promoted/all/b42/binaries/solaris-sparc/bin/java_g -server -Xcomp DWhet
Warning: missing arguments are set to defaults.
Application usage: DWhet <iterations> <loops>
        iterations default value is 10
        loops default value is 100

# To suppress the following error report, specify this argument
# after -XX: or in .hotspotrc: SuppressErrorAt=/phaseX.hpp:155]
#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
# Internal Error (/BUILD_AREA/jdk1.5.0/hotspot/src/share/vm/opto/phaseX.hpp, 155 [ Patched ]), pid=24719, tid=8
#
# Java VM: Java HotSpot(TM) Server VM (1.5.0-beta2-b42-debug compiled mode)
#
# Error: assert(t != 0,"must set before get")
# An error report file with more information is saved as hs_err_pid24719.log
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
#
Current thread is 8
Dumping core ...
Abort
jaberwocky% hs_err hs_err_pid24719.log
#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
# Internal Error (/BUILD_AREA/jdk1.5.0/hotspot/src/share/vm/opto/phaseX.hpp, 155 [ Patched ]), pid=24719, tid=8
#
# Java VM: Java HotSpot(TM) Server VM (1.5.0-beta2-b42-debug compiled mode)
#
# Error: assert(t != 0,"must set before get")
 
--------------- T H R E A D ---------------
 
Current thread (0x0017ab38): JavaThread "CompilerThread1" daemon [_thread_in_native, id=8]
 
Stack: [0xf7f00000,0xf7f80000), sp=0xf7f7dd00, free space=503k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm_g.so+0xe2467c] void VMError::report_and_die() + 0x804
V [libjvm_g.so+0x54597c] void report_assertion_failure(const char*,int,const char*) + 0xa4
V [libjvm_g.so+0xd03bd0] const Type*PhaseTransform::type(const Node*)const + 0x90
V [libjvm_g.so+0xcfafac] Node*SubINode::Ideal(PhaseGVN*,int) + 0x6f4
V [libjvm_g.so+0xbcff5c] Node*PhaseIterGVN::transform_old(Node*) + 0x10c
V [libjvm_g.so+0xbcfe20] Node*PhaseIterGVN::transform(Node*) + 0xa0
V [libjvm_g.so+0xcfac78] Node*SubINode::Ideal(PhaseGVN*,int) + 0x3c0
V [libjvm_g.so+0xbd021c] Node*PhaseIterGVN::transform_old(Node*) + 0x3cc
V [libjvm_g.so+0xbcfa4c] void PhaseIterGVN::optimize() + 0x194
V [libjvm_g.so+0x4a5b9c] void Compile::Optimize() + 0x12c
V [libjvm_g.so+0x4a0a34] Compile::Compile(ciEnv*,C2Compiler*,ciMethod*,int,int) + 0xdec
V [libjvm_g.so+0x33d3d8] void C2Compiler::compile_method(ciEnv*,ciMethod*,int) + 0x100
V [libjvm_g.so+0x4b9dbc] void CompileBroker::invoke_compiler_on_method(CompileTask*) + 0x4cc
V [libjvm_g.so+0x4b919c] void CompileBroker::compiler_thread_loop() + 0x474
V [libjvm_g.so+0xd68ce8] void compiler_thread_entry(JavaThread*,Thread*) + 0x90
V [libjvm_g.so+0xd631cc] void JavaThread::thread_main_inner() + 0x14c
V [libjvm_g.so+0xd63068] void JavaThread::run() + 0x1b0
V [libjvm_g.so+0xb29704] _start + 0x274
 
 
Current CompileTask:
opto:519 b DWhet.benchmark()LWhet$WhetResult; (1108 bytes)
 
 
--------------- P R O C E S S ---------------
 
Java Threads: ( => current thread )
  0x00288d58 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=9]
=>0x0017ab38 JavaThread "CompilerThread1" daemon [_thread_in_native, id=8]
  0x001796a8 JavaThread "CompilerThread0" daemon [_thread_blocked, id=7]
  0x00178190 JavaThread "AdapterThread" daemon [_thread_blocked, id=6]
  0x00176cd0 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=5]
  0x001675c0 JavaThread "Finalizer" daemon [_thread_blocked, id=4]
  0x001655f8 JavaThread "Reference Handler" daemon [_thread_blocked, id=3]
  0x000550c8 JavaThread "main" [_thread_blocked, id=1]
 
Other Threads:
  0x00160678 VMThread [id=2]
  0x001d7e60 WatcherThread [id=10]
 
VM state:not at safepoint (normal execution)
 
VM Mutex/Monitor currently owned by a thread: None
 
Heap
 def new generation total 2112K, used 171K [0xefc00000, 0xefe20000, 0xf1150000)
  eden space 2048K, 8% used [0xefc00000, 0xefc2acf8, 0xefe00000)
  from space 64K, 0% used [0xefe00000, 0xefe00000, 0xefe10000)
  to space 64K, 0% used [0xefe10000, 0xefe10000, 0xefe20000)
 tenured generation total 1408K, used 0K [0xf1150000, 0xf12b0000, 0xf3c00000)
   the space 1408K, 0% used [0xf1150000, 0xf1150000, 0xf1150200, 0xf12b0000)
 compacting perm gen total 16384K, used 1531K [0xf3c00000, 0xf4c00000, 0xf7c00000)
   the space 16384K, 9% used [0xf3c00000, 0xf3d7ef18, 0xf3d7f000, 0xf4c00000)
No shared spaces configured.
 
Dynamic libraries:
0x00010000 /java/re/jdk/1.5.0/promoted/all/b42/binaries/solaris-sparc/bin/java_g
0xff380000 /usr/lib/libthread.so.1
0xff3b0000 /usr/lib/libdl.so.1
0xff280000 /usr/lib/libc.so.1
0xff350000 /usr/platform/SUNW,Ultra-60/lib/libc_psr.so.1
0xfe000000 /net/koori.sfbay/p/jdk07/jdk/1.5.0/beta2/b42/binaries/solaris-sparc/jre/lib/sparc/server/libjvm_g.so
0xfdfe0000 /usr/lib/libsocket.so.1
0xfdfc0000 /usr/lib/libsched.so.1
0xfdf90000 /usr/lib/libCrun.so.1
0xfdf40000 /usr/lib/libm.so.1
0xfde80000 /usr/lib/libnsl.so.1
0xff360000 /usr/lib/libw.so.1
0xfde50000 /usr/lib/libmp.so.2
0xfde30000 /usr/lib/librt.so.1
0xfde10000 /usr/lib/libaio.so.1
0xfddf0000 /usr/lib/libmd5.so.1
0xfddd0000 /usr/platform/SUNW,Ultra-60/lib/libmd5_psr.so.1
0xfdd70000 /net/koori.sfbay/p/jdk07/jdk/1.5.0/beta2/b42/binaries/solaris-sparc/jre/lib/sparc/native_threads/libhpi_g.so
0xfdd30000 /net/koori.sfbay/p/jdk07/jdk/1.5.0/beta2/b42/binaries/solaris-sparc/jre/lib/sparc/libverify_g.so
0xfdce0000 /net/koori.sfbay/p/jdk07/jdk/1.5.0/beta2/b42/binaries/solaris-sparc/jre/lib/sparc/libjava_g.so
0xfdca0000 /net/koori.sfbay/p/jdk07/jdk/1.5.0/beta2/b42/binaries/solaris-sparc/jre/lib/sparc/libzip_g.so
 
VM Arguments:
jvm_args: -Xcomp
java_command: DWhet
 
Environment Variables:
JAVA_HOME=/java/re/jdk/1.5.0/latest/binaries/solaris-sparc
PATH=./:/export/home/kvn/bin:/java/re/jdk/1.5.0/latest/binaries/solaris-sparc/bin:/java/devtools/sparc/SUNWspro/SOS8/bin:/usr/bin:/usr/lib:/usr/ccs/bin:/usr/ccs/lib:/usr/sbin:/sbin:/etc:/usr/dist/exe:/usr/dt/bin:/usr/openwin/bin:/usr/ucb:/usr/ucb/bin:/java/devtools/sparc/bin:/java/devtools/sparc/gnucc/bin
LD_LIBRARY_PATH=/net/koori.sfbay/p/jdk07/jdk/1.5.0/beta2/b42/binaries/solaris-sparc/jre/lib/sparc/server:/net/koori.sfbay/p/jdk07/jdk/1.5.0/beta2/b42/binaries/solaris-sparc/jre/lib/sparc:/net/koori.sfbay/p/jdk07/jdk/1.5.0/beta2/b42/binaries/solaris-sparc/jre/../lib/sparc
SHELL=/bin/csh
DISPLAY=:0.0
 
 
--------------- S Y S T E M ---------------
 
OS: Solaris 9 s9_58shwpl3 SPARC
           Copyright 2002 Sun Microsystems, Inc. All Rights Reserved.
                        Use is subject to license terms.
                             Assembled 15 April 2002
                     Solaris 9 Maintenance Update 4 applied
 
uname:SunOS 5.9 Generic_112233-11 sun4u (T2 libthread)
rlimit: STACK 8192k, CORE 0k, NOFILE 65536, AS infinity
load average:0.82 0.65 0.57
 
CPU:total 2 has_v8, has_v9, has_vis1
 
Memory: 8k page, physical 1048576k(237424k free)
 
vm_info: Java HotSpot(TM) Server VM (1.5.0-beta2-b42) for solaris-sparc, built on Mar 11 2004 02:58:09 by unknown with unknown Workshop:0x550
 
jaberwocky%