[PATCH] D150388: [CodeGen]Allow targets to use target specific COPY instructions for live range splitting

Mon Jul 17 10:19:19 PDT 2023

vitalybuka added a comment.

In D150388#4504387 <https://reviews.llvm.org/D150388#4504387>, @arsenm wrote:

> In D150388#4504380 <https://reviews.llvm.org/D150388#4504380>, @vitalybuka wrote:
>
>> It's still regression. Unless someone has a patch ready to land, we need to revert this.
>
> I'd ask that you provide a reproducer, and perform the experiment I mentioned. If we can just disable the expanded isCopyInstr identification, it will be a lot less painful

I am running creduce for ubsan case whole weekend, still quite large. I can try the experiment if you can provide a draft patch.

Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D150388/new/

https://reviews.llvm.org/D150388