https://sourceware.org/bugzilla/show_bug.cgi?id=30317

--- Comment #3 from Haochen Jiang <haochen.jiang at intel dot com> ---
(In reply to Jan Beulich from comment #2)
> SwapSources can only sensibly be present / in use for real insn templates.

Yes since when we are in s_insn(), we actually did not know whether it is swap
source.

> 
> Of course syntax of .insn could be extended to allow specifying such, but
> I'm afraid that would become unwieldy, because _all_ possible permutations
> would then need to be expressable.

I get your point here. I suppose adding those might be overloaded for .insn.
Thx!

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