[llvm] [WIP][RFC] Teach MCA constant registers do not create dependencies (PR #89387)

[Craig Topper via llvm-commits]

topperc wrote:

> This will increase the size of generated code, which is an issue. 

MCRegisterDesc is 22 bytes before this change but requires 4 byte alignment so I think the bool sneaks into the 2 byte padding.

https://github.com/llvm/llvm-project/pull/89387