bug: G++?

[ctng]

hi,
A part of my program faced with a problem.
My code fragment:
           switch(myvar)
          {
                  case(...)
                   {
                    }
                   break;
                   .
                   .
                   .    
                  case (12345):
                  {
                   MYSTRUCT1 mys1 = {0, 0, 0, 0, "mystr1", 0, 2, 5, 6, 
1, 7, 6, 1};
                   MYSTRUCT2 mystr2[3] = {{0, 12345 , "mystr2a"  }, {1, 
9999, 0 }, {2, 9999, 0}};
                   SearchWindow *searchWindow =NULL;
                   //printf("searchWindow addr = 0x%x\n", &searchWindow);
                   swaddr = 0;
                   swaddr = searchWindow= new SearchWindow(&mys1 ,mystr2);
                   ZafEventType rettype = searchWindow->Control();
                   delete searchWindow;
                    }
                     break;
                     .
                     .
                     .
            }

The problem:
         The stack pointer '*searchWindow' did not received the return 
addr of  'new SearchWindow' (heap addr), despite the fact that 'new' 
didnt failed.
         
What i saw:
         I traced thro the assembly instruction  using the debugger, i 
found that there is not instruction that assigned the addr of  'new 
SearchWindow'  to
           the stack pointer '*searchWindow'. However, there are 
instruction that assgined the addr of  'new SearchWindow' object to a 
mem location near
         the addr of the  stack pointer '*searchWindow'.

What i did:
         If i comment several cases in the switch, when i do tracing 
again, i found an instruction that assigned the addr of  'new 
SearchWindow'  to
           the stack pointer '*searchWindow'.

compiler version:
       GNU CPP version 2.7.9-970819 egcs-971225

compiler options:
         -g -O0 -mcpu=arm7tdmi -mapcs-32 -mno-thumb-interwork -nostdinc 
-fforce-addr -DRW_MULTI_THREAD -D_REENTRANT -mno-sched-prolog 
-fno-builtin -fvolatile


thanks
ct, ng