[llvm-branch-commits] [IR] Make BranchInst operand order consistent (PR #151673)

[Alexis Engelke via llvm-branch-commits]

aengelke wrote:

The slowdown from this change is compensated by the improvement of successors(), but [in combination](https://llvm-compile-time-tracker.com/compare.php?from=543f94831245497b675dadb6a20ebc309d289465&to=233b25002e03e745f94756ed29ecde4b46c0224b&stat=instructions:u), it is only an improvement for stage2-O3 builds (not stage1-O3).

<img width="2962" height="194" alt="image" src="https://github.com/user-attachments/assets/8cad9b34-cae0-4c3d-84cf-cd596bf4d4d4" />


https://github.com/llvm/llvm-project/pull/151673