Frame layout change
This CL slightly changes the frame layout to remove an old unnecessary
slot, allow for the inclusion of compiler-generated temps and
unifies all variable offset calculation into a single function shared
by the compilers and the runtime system.
o Update the GetVRegOffset function in stack.cc to understand the
o Remove compiler-private offset calculation code and route
everything through the shared GetVRegOffset in thread.cc.
o Remove "filler word" that existed immediately after the last
Dalvik local. This was there to address an initial concern that
I had about a single argument register being reused later as a
long. Now convinced that it won't happen.
o Extend the old "padding" region to include compiler-created temps
that can appear to the rest of the rest of the system as
Dalvik registers. The new temps will have Dalvik register numbers
of -2 and lower.
o Treat Method* for the current method as a special Dalvik register
denoted by reg number -1.
6 files changed