[llvm] Fix parentheses for clarity in X86ISelLowering.cpp (PR #121954)

[Simon Pilgrim via llvm-commits]

RKSimon wrote:

> by the way while cloning my forked repo, will shallow cloning affect the merging with upstream repo in any way ? cause i tried cloning and it repeatedly failed for like 5 times on different stages

Sorry, I don't know - for dev work I always clone the entire thing

https://github.com/llvm/llvm-project/pull/121954