[PATCH] D138317: [PowerPC] Add support for tune-cpu attribute

[Qiu Chaofan via Phabricator via llvm-commits]

qiucf accepted this revision.
qiucf added a comment.
This revision is now accepted and ready to land.

It's not easy to give a direct test case to demonstrate effect of `tune-cpu`. And even so, the case would be volatile. We can adjust features specific to `tune-cpu` in `PPC.td` in future patches.

This patch looks good to me. Wait to see if @nemanjai has other comments.


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https://reviews.llvm.org/D138317