[PATCH] D23988: [compiler-rt][XRay] Support tail call sleds

[Serge Rogatch via llvm-commits]

rSerge added a comment.

In https://reviews.llvm.org/D23988#548335, @dberris wrote:

> Ping?


I'm reviewing it, though not ready to say something because I haven't yet understood the implementation for tail calls.


https://reviews.llvm.org/D23988