Implement review feedback, including additional transforms

(icmp slt (sub A B) 1) -> (icmp sle A B)
icmp sgt (sub A B) -1) -> (icmp sge A B)

and add testcase.

llvm-svn: 45256
2 files changed
tree: 1f0350259b91a2734c170d4971a83f03b3e0754b
  1. clang/
  2. llvm/