There are a few bugs in do_mixed_source_and_assembly() when dealing with 
the ia64.  One problem is that cleanups  for tuples and lists can 
possibly be deferred to a future iteration of a loop, however, the 
values are reinitialized to NULL each time at the start of the loop.  
Another problem is that the code to figure out if the list/tuple should 
be closed off is inside a block of code that is not always reached in 
every iteration.  These two problems combined to cause a SIGSEGV in gdb 
because a NULL pointer gets passed into do_cleanups() which causes all 
cleanups to be performed up the chain.  I have submitted a separate 
patch to prevent running the entire chain when NULL input is passed.

Ok to commit?

-- Jeff J.

2003-12-17  Jeff Johnston  <jjohnstn@redhat.com>

        * disasm.c (do_mixed_source_and_assembly): For uiout asm list
        and tuple cleanups, don't reset to NULL until we close off the
        tuple/list.  Also move check for whether to close off the
        asm tuple/list to where it will be run on each iteration of the
        loop.