[X86] Add test cases for missed opportunities in (x << C1) op C2 to (x op (C2>>C1...

[X86] Add test cases for missed opportunities in (x << C1) op C2 to (x op (C2>>C1)) << C1 transform.

We handle the case where the C2 does not fit in a signed 32-bit immediate, but
(C2>>C1) does. But there's also some 64-bit opportunities when C2 is not an unsigned
32-bit immediate, but (C2>>C1) is. For OR/XOR this allows us to load the
immediate with with MOV32ri instead of a movabsq. For AND it allows us to use a
32-bit AND and fold the immediate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357050 91177308-0d34-0410-b5e6-96231b3b80d8