Use llvm_unreachable for "impossible" situations.

llvm-svn: 119705
1 file changed
tree: cfcb3b0c08ae210b8d72860426d5b85895d15019
  1. clang/
  2. compiler-rt/
  3. debuginfo-tests/
  4. libcxx/
  5. lldb/
  6. llvm/