[PATCH] D11569: [AArch64] Favor extended reg patterns for sub

[Tim Northover]

t.p.northover accepted this revision.
t.p.northover added a comment.
This revision is now accepted and ready to land.

Looks good to me, it's just matching the behaviour for default patterns in InstrFormats as far as I can see and isn't bad for any CPU I know of.

Tim.


http://reviews.llvm.org/D11569