[clang] [Inliner] Add argument/function attribute propagation before inlining. (PR #68164)

[via cfe-commits]

goldsteinn wrote:

Note on compile time affect: https://llvm-compile-time-tracker.com/compare.php?from=2da4960f20f7e5d88a68ce25636a895284dc66d8&to=f8c9f5bce65756598da22e8aec5d91fb66b16d5c&stat=instructions%3Au

Minimal for normal O3, a bit more significant for LTO.

https://github.com/llvm/llvm-project/pull/68164