Array element accesses are bounds-checked in C# for safety. But, that means that there's performance impact... Why don't we have hardware support for this yet?

Array element accesses are bounds-checked in C# for safety. But, that means that there's performance impact... Why don't we have hardware support for this yet? (i.e. CPU instructions that are bounds-aware?) Edit: Do we? https://stackoverflow.com/questions/40752436/do-any-cpus-have-hardware-support-for-bounds-checking https://stackoverflow.com/questions/40752436/do-any-cpus-hav...