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

[Nicolai Hähnle via llvm-commits]

nhaehnle wrote:

> @nhaehnle If you mass-regenerate InstCombine tests, you get ~100 files changed, where most of these changes are only instruction renames. llvm/test/Transforms/InstCombine/trunc-shift-trunc.ll would be a random example.

It turned out to be a fairly silly and simple issue: #111148 

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