[llvm] [InstCombine] Fold `switch(zext/sext(X))` into `switch(X)` (PR #76988)

[Nikita Popov via llvm-commits]

nikic wrote:

@dtcxzyw The compile-time increases are probably due to increased code size: http://llvm-compile-time-tracker.com/compare.php?from=7954c57124b495fbdc73674d71f2e366e4afe522&to=502b13ed34e561d995ae1f724cf06d20008bd86f&stat=size-text As long as the code size increase itself is not a regression, this is fine.

https://github.com/llvm/llvm-project/pull/76988