[lanai] Add lowering for SETCCE i32.

* Add lowering for SETCCE i32.
* Add test to check lowering of i64 compares uses SETCCE expansion (outside of EQ and NE).
* Fix select.ll test and immediate form selection for RI operations.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@266802 91177308-0d34-0410-b5e6-96231b3b80d8
5 files changed