[llvm] [GlobalIsel] Improve poison analysis (PR #93731)

Matt Arsenault via llvm-commits llvm-commits at lists.llvm.org
Wed May 29 22:35:31 PDT 2024


arsenm wrote:

> How do we treat COPY?

Look through virtual registers and treat physical like the DAG does for CopyFromReg (which I believe recently started assuming are frozen) 

https://github.com/llvm/llvm-project/pull/93731


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