[PATCH] D104431: [lld] Add lto-cspgo-warn-mismatch option for COFF

[Rong Xu via Phabricator via llvm-commits]

xur added a comment.

CSPGO can have mismatches -- it's just like PGO that is triggered by a source change, or a compiler change (before the pass). 
Usually if there is a mismatch, PGO use pass will catch it first. There are cases that PGO has no-mismatch while CSPGO has a mismatch, but I consider it extremely rare.

Did you see the same warning in PGO?

As Teresa mentioned, I think the internal option should also work. But I do see the point of setting the argument in Conf to avoid the use of internal option.


Repository:
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  https://reviews.llvm.org/D104431/new/

https://reviews.llvm.org/D104431