Optimize the "bit test" code path for switch lowering in the
case where the bit mask has exactly one bit.

llvm-svn: 106716
2 files changed
tree: 3cd39791ddefdc75c00ee4fb5cb1197ff9b9ae6b
  1. clang/
  2. compiler-rt/
  3. libcxx/
  4. lldb/
  5. llvm/