[PATCH] D40894: [XRay][compiler-rt+llvm] Update XRay trampoline CFI and register stashing semantics

[Eric Christopher via Phabricator via llvm-commits]

echristo added a comment.

Also the register saves strike me as a somewhat odd optimization - you could also have just thrown this into SAVE_REGISTERS I think?

-eric


https://reviews.llvm.org/D40894