[PATCH] D92083: [PowerPC] Lower the SETCC/SELECT_CC/BR_CC as libcall for fp128 with Power9 vector disabled

[Nemanja Ivanovic via Phabricator via llvm-commits]

nemanjai added a comment.

Please explain in the description of the review (and subsequent commit message) why custom lowering is needed. I suppose for `SELECT_CC`, it is needed because using `setOperationAction()` uses the result type which is only guaranteed to match the true/false value but not the comparison types. However, it is not immediately obvious to me why we need custom lowering for `BR_CC`.


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https://reviews.llvm.org/D92083