Precompute interference for neighbor blocks as long as there is no interference.

This doesn't require seeking in the live interval union, so it is very cheap.

llvm-svn: 129187
2 files changed
tree: b2bf3fa4cd5626fba3a3b59840b851ea2e9e3bdf
  1. clang/
  2. compiler-rt/
  3. debuginfo-tests/
  4. libcxx/
  5. lldb/
  6. llvm/