[PATCH] D50725: [SystemZ] Replace subreg_r with subreg_h

[Ulrich Weigand via Phabricator via llvm-commits]

uweigand accepted this revision.
uweigand added a comment.
This revision is now accepted and ready to land.

Ah, that's good to know!  So if I understand this correctly, accessing even the 32-bit part (F0S) would be considered to clobber F0D.   This is not really necessary, but probably doesn't hurt at this point.  We could do the same thing as the HAX you mention to get this modeled exactly.

In any case, then I agree that this patch is fine.


Repository:
  rL LLVM

https://reviews.llvm.org/D50725