[PATCH] D89480: [GlobalISel][Legalizer] Implement lower action for G_FSHL/G_FSHR

Fri Oct 16 07:23:28 PDT 2020

arsenm added a comment.

In D89480#2332914 <https://reviews.llvm.org/D89480#2332914>, @kschwarz wrote:

> In D89480#2332584 <https://reviews.llvm.org/D89480#2332584>, @arsenm wrote:
>
>> Duplicate D76500 <https://reviews.llvm.org/D76500>
>
> I somehow forgot about this open review. I'll abandon this then.
> Is there anything we can help with to get D76500 <https://reviews.llvm.org/D76500> integrated? Since a recent upstream change we are seeing G_FSHL's being generated, which our GISel-only backend cannot handle.

The main thing holding that up is I haven't had time to address the problem of avoiding expanding the division in the divide-by-constant case

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D89480/new/

https://reviews.llvm.org/D89480