[SystemZ] Prefer LOCHI over generating IPM sequences

On current machines we have load-on-condition instructions that can be
used to directly implement the SETCC semantics.  If we have those, it is
always preferable to use them instead of generating the IPM sequence.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@322989 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed