[PATCH] D46552: [AArch64] Support reserving x19 and x20 register

[Petr Hosek via Phabricator via llvm-commits]

phosek added a subscriber: pcc.
phosek added a comment.

This is an alternative to https://reviews.llvm.org/D46215, @pcc suggested using x19/x20 instead of x16/x17 to avoid potential linker collisions.


Repository:
  rL LLVM

https://reviews.llvm.org/D46552