[PATCH] D115996: [AMDGPU] Don't remove VGPR to AGPR dead spills from frame info

Mon Dec 20 17:31:11 PST 2021

bcahoon added a comment.

In D115996#3203344 <https://reviews.llvm.org/D115996#3203344>, @rampitec wrote:

> In D115996#3203263 <https://reviews.llvm.org/D115996#3203263>, @bcahoon wrote:
>
>> In D115996#3203119 <https://reviews.llvm.org/D115996#3203119>, @rampitec wrote:
>>
>>> Will the slot remain in the final allocation?
>>
>> Yes. At least in the example I'm seeing.
>
> Is there any way to get rid of them? Check they are actually dead, or move code later?

Let me think about this a little and see if I can come up with a way to remove them if they are actually dead.

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  https://reviews.llvm.org/D115996/new/

https://reviews.llvm.org/D115996