[PATCH] D96980: [amdgpu] Revert agnostic SGPR spill.

[Michael Liao via Phabricator via llvm-commits]

hliao added a comment.

In D96980#2573982 <https://reviews.llvm.org/D96980#2573982>, @foad wrote:

>> HPC workloads mostly spill 1 or 2 SGPRs.
>
> Can you explain this a bit more? Spilling SGPRs //to memory// is supposed to be a very rare case. Why is it common for HPC workloads? Is there a better way to fix it?

Pointers are extensively used in most HPC workloads, where double is also frequently used. There are lots of uniform 64-bit values in either pointer or double.


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