[PATCH] D49861: [X86] Improved sched models for X86 XCHG*rr instructions

[Andrew V. Tischenko via Phabricator via llvm-commits]

avt77 added a comment.

In https://reviews.llvm.org/D49861#1184028, @RKSimon wrote:

> Tag XADD instructions with WriteXCHG as well?


Should we use WriteXCHGADD in this case?


https://reviews.llvm.org/D49861