[clang] [llvm] RFC: Implementing new mechanism for hard register operands to inline asm as a constraint. (PR #85846)

[James Y Knight via llvm-commits]

jyknight wrote:

Thanks for reviving the change! 

I'm definitely in favor of this, but since it adds no new functionality (only better usability), the value proposition is significantly lessened (IMO, to the point where it may not be be worthwhile to do) if it gets implemented ONLY in clang. So I'd love to see some movement on the GCC side, too. Maybe revive the existing discussion thread?

https://github.com/llvm/llvm-project/pull/85846