[llvm] update_test_checks: improve IR value name stability (PR #110940)

[Nikita Popov via llvm-commits]

Nicolai =?utf-8?q?Hähnle?= <nicolai.haehnle at amd.com>
Message-ID:
In-Reply-To: <llvm.org/llvm/llvm-project/pull/110940 at github.com>


nikic wrote:

> By default, UTC attempts to keep the produced diff small by keeping IR value name variables stable.

FWIW I don't think this functionality actually works in practice. I get the same amount of "rename diffs" before and after this feature was introduced. Does it only work for some specific UTC `--version` and not any of the older tests, or something like that?

https://github.com/llvm/llvm-project/pull/110940