LukeGeeson added a comment.

In D76077#1919897 <https://reviews.llvm.org/D76077#1919897>, @rjmccall wrote:

> Note that we have an IR type for the PPC double-double format, which isn't 
> even hardware-supported.  This is literally just an IEEE floating-point 
> format with non-standard parameters, right?


Indeed yeah, the details are laid out in a blog post here: 
https://community.arm.com/developer/ip-products/processors/b/ml-ip-blog/posts/bfloat16-processing-for-neural-networks-on-armv8_2d00_a


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D76077/new/

https://reviews.llvm.org/D76077



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