Vang Thao 27e1931508 [AMDGPU] Fix PreRARematerialize scheduler pass sinking subreg defs ...

When collecting trivially rematerializable defs, skip any subreg defs. We do not want to sink these.

Differential Revision: https://reviews.llvm.org/D121874

2022-03-17 11:38:53 -07:00

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