[clang] [CIR][CIRGen] Upstream support for `__builtin_bcopy` (PR #185038)

[Ayokunle Amodu via cfe-commits]

ayokunle321 wrote:

> @ayokunle321 Of the 10 tests that failed in CI, 9 were an unrelated problem that was fixed earlier today. The tenth is your new test, which is failing because it's looking for the now non-existant cir.binop. @xlauko recently replaced that with individual operations for add, sub, mul, etc. You need to rebase on the latest top of trunk and update your test.
> 
> As for the problem with test_conditional_bcopy, that sounds like a problem with ternary operator handling, but I don't see it if I try similar code with a different builtin.

Merged and updated! That test happened to work after the merge 🤷🏿 so it's on there now.

https://github.com/llvm/llvm-project/pull/185038