[PATCH] D49195: [WebAssembly] Support for a ternary atomic RMW instruction

[Heejin Ahn via Phabricator via llvm-commits]

aheejin planned changes to this revision.
aheejin added a comment.

Turns out this is not currently able to make use of truncating/extending instructions when the 'success flag' of the LLVM IR `cmpxchg` instruction is used.


Repository:
  rL LLVM

https://reviews.llvm.org/D49195