tree 62830e1e9c97663c139f03c54c65f3f91185e5f4
parent b90caf538c04a0c4a04606aa91bfd0da10403707
author Rico Wind <ricow@google.com> 1554885589 +0200
committer Rico Wind <ricow@google.com> 1554896209 +0000

Do a workaround for dominator tree calculation crash on mediatek 4.4.2/4.4.4

When the calculation sees unreachable code it can't find a dominator
and crashes.  The unreachable code is there to work around a different
vm bug, basically this is a code pattern that has hit us multiple
times, with new workarounds, this is workaround^4

What we do instead of generating unreachable code (workaround for
dalvik tracing past the last instruction b/117907456) , previously
done in different ways (b/119895393, b/121355317, b/128926846), is to
just do a jump over the throw and then jump back to the throw:

throw v10 ->
goto +2, throw v10, goto -1

Bug: 117907456, 119895393, 121355317, 128926846
Change-Id: Ifbaa024583f7c3b3c292aa1f09aeb4c63974650c