implement .ll and .bc support for nsw/nuw on shl and exact on lshr/ashr.
Factor some code better.

llvm-svn: 125006
8 files changed
tree: 5f96a998c61efb7cad83735ee73f3cf37fb86a01
  1. clang/
  2. compiler-rt/
  3. debuginfo-tests/
  4. libcxx/
  5. lldb/
  6. llvm/