[llvm] [Utils][update_mc_test_checks] Support generating asm tests from templates. (PR #168946)

[Joe Nash via llvm-commits]

https://github.com/Sisyph approved this pull request.

I'm VERY happy to see this functionality.

Perhaps you should add one of these templated tests to the unit tests for the script to monitor for regressions?

It could conceivably be abstracted even more, with an auxilliary file to provide common operand templates or so, but this is a good place to start.

LGTM, but please wait for one more. 

https://github.com/llvm/llvm-project/pull/168946