[llvm] [LLVM][TableGen] Check overloaded intrinsic mangling suffix conflicts (PR #110324)

[Rahul Joshi via llvm-commits]

jurahul wrote:

Thanks @arsenm . It's not theoretical then at this point, and I suspect some other folks have likely run into this. @nikic does that make you reconsider your position with this PR, or should I still go investigate alternatives.

https://github.com/llvm/llvm-project/pull/110324