[PATCH] D30661: [x86] Split MXCSR into two pseudo-registers

[Eli Friedman via Phabricator via llvm-commits]

efriedma added a comment.

I guess it isn't a backward-compatibility problem if nothing is actually using it yet, I guess.  Still, it would be nice to make clobbering "mxcsr" do the obvious, correct thing, as opposed to splitting it into registers which don't actually exist.

> I didn't think these were supported for modelling inline asm constraints

Support for what, exactly?


Repository:
  rL LLVM

https://reviews.llvm.org/D30661