[llvm] [InlineCost] Consider the default branch when calculating cost (PR #77856)

[Quentin Dian via llvm-commits]

DianQK wrote:

> FWIW, it seems like this causes a minor performance regression in stage2 clang builds (https://llvm-compile-time-tracker.com/compare.php?from=5aec9392674572fa5a06283173a6a739742d261d&to=5932fcc47855fdd209784f38820422d2369b84b2&stat=instructions:u). Though code size does reduce as well.

Do you think we need to revert? If not, I can create an issue to track it.

https://github.com/llvm/llvm-project/pull/77856