OPTIMIZE(*FULL)

Hi All,
 
I am developing a piece of code that produces odd results when I use
OPTIMIZE(*FULL) on the CRTRPGMOD command.  I am compiling to V5R1 on a V5R3
machine.  Take the following as an example of the prototype:
 
 D xyzProc         pr

 D  pParm1                    65535a   varying

 D  pParm2                     1024a   value varying

 D  pParm3                     1024a   value varying 

I invoke the above like so:

D string          s          65535a   varying 
D yyyy            s              4  0 inz(0001) 
 /free

  xyzProc(string: 'yyyy': %editc(yyyy:'X')); 
 
 /end-free


Calling xyzProc when it is compiled with OPTIMIZE(*NONE) or OPTIMIZE(*BASIC)
works just fine and all variables have values as expected.  When I recompile
to OPTIMIZE(*FULL) I get the value of pParm3 in pParm2 (even though pParm2
is passed literally!!!!)

Looks like I am not the only one having the problem :-(
http://archive.midrange.com/rpg400-l/200112/msg00617.html
http://archive.midrange.com/rpg400-l/199711/msg00004.html

Anybody have a fix to this problem other than "don't use *FULL"?

Thank,
Aaron Bartell
http://mowyourlawn.com