[llvm] [InstCombine] Add ctpop(A | B) + ctpop(A & B) -> ctpop(A) + ctpop(B) (PR #79089)

[David Spickett via llvm-commits]

DavidSpickett wrote:

(since you asked about this on Discord)

If you click through to the results and click a whole bunch more (it's not super easy to find), you'll get to the end of the log and see:
```
MT: command "C:\Program Files (x86)\Windows Kits\10\bin\10.0.19041.0\x64\mt.exe /nologo /manifest unittests\TargetParser\TargetParserTests.exe.manifest /outputresource:unittests\TargetParser\TargetParserTests.exe;#1" failed (exit code 0x1f) with the following output:
mt.exe : general error c101008d: Failed to write the updated manifest to the resource of file "unittests\TargetParser\TargetParserTests.exe". Operation did not complete successfully because the file contains a virus or potentially unwanted software.
```

Which is not related to your patch. Ideally you'd get a clean run at some point, maybe by rebasing once the patch is approved, but if that's not possible maybe your reviewers will allow a merge without a Windows CI run.

https://github.com/llvm/llvm-project/pull/79089