[PATCH] D40861: [X86] Add support for stack probing on x86_64 Darwin

[Amara Emerson via Phabricator via llvm-commits]

aemerson added a comment.

In https://reviews.llvm.org/D40861#945805, @majnemer wrote:

> I'm a little confused here, is the intent that this will be the default on the platform? If not, can you explain the functional difference between this and just using the "probe-stack" attribute with ___chkstk_darwin?


Yes, that's the intention. There are also ABI differences between Darwin and Windows meaning that we need to potentially save RAX entry. This patch is trying to generalise the existing support hence why I've renamed things to make it less Windows-specific (although of course it's still not universally supported, just extended to Darwin).


Repository:
  rL LLVM

https://reviews.llvm.org/D40861