[llvm] [HashRecognize] Fix LHS ConstantRange check for BE (PR #148620)

[Ramkumar Ramachandra via llvm-commits]

artagnon wrote:

> And what's "LHS" ?

LHS is simply `%sb.crc.data` or `%crc`. The simple LHS of the icmp:

```cpp
      KnownBits KnownL = compute(L);
      auto LCR = ConstantRange::fromKnownBits(KnownL, false);
```

https://github.com/llvm/llvm-project/pull/148620