[PATCH] D57874: [WebAssembly] Make thread-related options consistent

Fri Feb 8 13:21:08 PST 2019

tlively added a comment.

In D57874#1389953 <https://reviews.llvm.org/D57874#1389953>, @aheejin wrote:

> - `-matomics` means `-mthread-model posix`

Why should this be the case? Atomic instructions are necessary for multithreading, but I wouldn't think multithreading would be necessary for atomic instructions. Certainly atomics are not very useful in a single threaded context, but that doesn't seem like a strong enough reason to implicitly opt in to the rest of multithreading when -matomics is provided by itself.

Repository:
  rC Clang

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  https://reviews.llvm.org/D57874/new/

https://reviews.llvm.org/D57874