[llvm] [RISCV] Only convert volatile i64 load/store to Zilsd in SelectionDAG. (PR #169529)

[Sam Elliott via llvm-commits]

lenary wrote:

Sorry, I just caught up with the other patch that does have more data on the code size impact, showing that this should help with that.

I will drop my concerns for the moment, but I do hope we can bring this back if we find other ways to remove the moves, enough to actually help.



https://github.com/llvm/llvm-project/pull/169529