[PATCH] D39700: [Builtins] Do not use tailcall for Thumb1

[Rich Felker via Phabricator via llvm-commits]

dalias added a comment.

Looking further at this, it looks like your current implementations of the __aeabi_* functions are simply wrong - they clobber registers that the ABI does not allow them to clobber.


https://reviews.llvm.org/D39700