[PATCH] D40706: Fix function pointer tail calls in armv8-M.base

[Eli Friedman via Phabricator via llvm-commits]

efriedma accepted this revision.
efriedma added a comment.

Looked a bit more; we're running out of registers because we don't consider r12 an allocatable register in Thumb1 mode.  Changing that would be a project way outside the scope of this bugfix, so this is fine as-is for now.  LGTM.


https://reviews.llvm.org/D40706