New C++ PBQP solver. Currently about as fast (read _slow_) as the old C based solver, but I'll be working to improve that. The PBQP allocator has been updated to use the new solver.

llvm-svn: 78354
13 files changed
tree: dc43bfa1a56bec5d2d110a7432a49795c4053751
  1. clang/
  2. compiler-rt/
  3. llvm/