Codegen tweaks

Minor codegen cleanup.  Most significant part of change is
fixing dalvik register use counting to correctly record
cost of high word of register pair.  Significant boost to
Reversi benchmark; modest gain for Caffeinemark.

Change-Id: I41819e6d7be93e62d259240269339a94a934f312
4 files changed
tree: 28e4f239a65cce19423e53a3d0a2162906df956d
  1. .gitignore
  3. build/
  4. jdwpspy/
  5. src/
  6. test/
  7. tools/