[Jikesrvm-researchers] opt compiler objectAsAddress error

[muthu k. <mu...@ho...>]

Hello everyone,
               I am using the Jikes RVM 2.0.3(IA32). I have the write 
barrier code which is similar to the VM_OptRCWritebarrier. I have some 
problem
while building the VM. I am using the OptOptCollector configuration.

static void resolvedPutfieldWriteBarrier(Object ref, int offset, Object 
value) {

      int oldval;
      int newval =  VM_Magic.objectAsAddress(value);
        .....
        ......
}

In the above code, if i comment the objectAsAddress(..) line, I  am
able to build the VM. If i remove the comment, it is giving
the build time error. But i have a similar code in Putstatic also.
But it does not give any problem. like

static void resolvedPutStaticWriteBarrier(int offset, Object value) {

      int newval = VM_Magic.objectAsAddress(value);
       .....
       .....
  }

The above code is running perfectly. But the code inside the
putfield gives the problem. can anyone tell me why it is happening.


This is the output of ./jbuild -trace


[GC 754851K->753023K(818944K), 0.0313711 secs]
-methodOpt VM_Processor registerAttachedProcessor (LVM_Processor;)I
-methodOpt VM_Processor unregisterAttachedProcessor (LVM_Processor;)I
-methodOpt VM_Processor createNativeProcessor ()LVM_Processor;
-methodOpt VM_Processor <init> (II)V
[GC 755071K->753014K(818944K), 0.0240469 secs]
OPT_Compiler failure during compilation of VM_Processor.<init> (II)V
java.lang.RuntimeException: vm internal error at:
	at VM._assertionFailure(VM.java:291)
	at VM.assert(VM.java:282)
	at VM.assert(VM.java:265)
	at OPT_BC2IR.do_aload(OPT_BC2IR.java:2436)
	at OPT_BC2IR.generateFrom(OPT_BC2IR.java:338)
	at OPT_BC2IR.generateHIR(OPT_BC2IR.java:194)
	at OPT_BC2IR.generateHIR(OPT_BC2IR.java:76)
	at OPT_Inliner.execute(OPT_Inliner.java:351)
	at OPT_Inliner.execute(OPT_Inliner.java:50)
	at OPT_ExpandRuntimeServices.inline(OPT_ExpandRuntimeServices.java:653)
	at OPT_ExpandRuntimeServices.inline(OPT_ExpandRuntimeServices.java:633)
	at OPT_ExpandRuntimeServices.perform(OPT_ExpandRuntimeServices.java:555)
	at OPT_CompilerPhase.performPhase(OPT_CompilerPhase.java:110)
	at OPT_OptimizationPlanAtomicElement.perform(OPT_OptimizationPlanAtomicE
lement.java:68)
	at OPT_OptimizationPlanCompositeElement.perform(OPT_OptimizationPlanComp
ositeElement.java:124)
	at OPT_CompilationPlan.execute(OPT_CompilationPlan.java:156)
	at OPT_Compiler.compile(OPT_Compiler.java:228)
	at VM_BootImageCompiler.compile(VM_BootImageCompiler.java:90)
	at VM_Method.compile(VM_Method.java:371)
	at VM_Class.getInitialInstructions(VM_Class.java:1501)
	at VM_Class.instantiate(VM_Class.java:1332)
	at BootImageWriter2.createBootImageObjects(BootImageWriter2.java:732)
	at BootImageWriter2.main(BootImageWriter2.java:384)
OPT_OptimizingCompilerException: ERROR produced in module:OPT_Compiler
    failure during compilation of VM_Processor.<init> (II)V

	at OPT_Compiler.fail(OPT_Compiler.java:358)
	at OPT_Compiler.compile(OPT_Compiler.java:245)
	at VM_BootImageCompiler.compile(VM_BootImageCompiler.java:90)
	at VM_Method.compile(VM_Method.java:371)
	at VM_Class.getInitialInstructions(VM_Class.java:1501)
	at VM_Class.instantiate(VM_Class.java:1332)
	at BootImageWriter2.createBootImageObjects(BootImageWriter2.java:732)
	at BootImageWriter2.main(BootImageWriter2.java:384)
Exception in thread "main" java.lang.RuntimeException: vm internal error at:
	at VM._assertionFailure(VM.java:291)
	at VM.assert(VM.java:282)
	at VM.assert(VM.java:265)
	at VM_Magic.getESIAsProcessor(VM_Magic.java:73)
	at VM_ProcessorLocalState.getCurrentProcessor(VM_ProcessorLocalState.jav
a:41)
	at VM_Processor.getCurrentProcessor(VM_Processor.java:121)
	at VM_Scheduler.traceback(VM_Scheduler.java:571)
	at VM.sysFail(VM.java:424)
	at VM_BootImageCompiler.compile(VM_BootImageCompiler.java:96)
	at VM_Method.compile(VM_Method.java:371)
	at VM_Class.getInitialInstructions(VM_Class.java:1501)
	at VM_Class.instantiate(VM_Class.java:1332)
	at BootImageWriter2.createBootImageObjects(BootImageWriter2.java:732)
	at BootImageWriter2.main(BootImageWriter2.java:384)
make: *** [/tmpid/tmp1/rvmbuild/RVM.image] Error 1


-muthu

_________________________________________________________________
Help STOP SPAM with the new MSN 8 and get 2 months FREE*  
http://join.msn.com/?page=features/junkmail