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[AMDGPU] Add test coverage to ensure first regallocfast only allocates SGPR
authorJeffrey Byrnes <Jeffrey.Byrnes@amd.com>
Thu, 6 Oct 2022 21:29:04 +0000 (14:29 -0700)
committerJeffrey Byrnes <Jeffrey.Byrnes@amd.com>
Thu, 6 Oct 2022 21:31:51 +0000 (14:31 -0700)
commit8e5b96cce91e63908a91cdaef81e9a1c993b18f2
tree4e6afc4c756546ce54c5375bc570eb1a1c0c5463tree | snapshot
parent0150c192a716ec2eaf99a71e39e28fa87a8134d9commit | diff
[AMDGPU] Add test coverage to ensure first regallocfast only allocates SGPR

Register allocation is split into two passes, and the expected behavior is that the first pass only should only work on virtual SGPRs. Whereas the second pass works on virtual VGPRs. This adds a test case which breaks if the first pass allocates VGPRs.

Differential Revision: https://reviews.llvm.org/D135331
llvm/test/CodeGen/AMDGPU/fastregalloc-sgpr-only.mir [new file with mode: 0644] blob
Domain: System / Toolchain;