[PATCH] D64589: [UpdateLLC/MIRTestChecks] Emit warning when invalid value for -check-prefix option

[Dávid Bolvanský via Phabricator via llvm-commits]

xbolva00 added a comment.

In D64589#1582936 <https://reviews.llvm.org/D64589#1582936>, @RKSimon wrote:

> is there anyway that we could move this to common.py so we can reuse it in the other update scripts?


Thanks, I forgot about mir. Moved to common, now it warns for broken LLC/MIR prefixes.


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