[PATCH] D82440: [Power10] Implement Vector Shift Double Bit Immediate Builtins in LLVM/Clang

[Biplob Mishra via Phabricator via llvm-commits]

biplmish added a comment.

In D82440#2113301 <https://reviews.llvm.org/D82440#2113301>, @RKSimon wrote:

> Are these a form of funnel shifts? https://llvm.org/docs/LangRef.html#llvm-fshl-intrinsic
>
> If so would it make sense to emit generic @llvm.fshl.v16i8 style intrinsics to improve optimization opportunities?


The concat is common, however the funnel shifts and in general most vector operations occur on each elements of the vector. 
However this shift(Vector Shift Double Bit Immediate) is to implement shift of the entire concatenated vector by an immediate shift amount.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D82440/new/

https://reviews.llvm.org/D82440