| commit | 5a21128f24a7f9a48166ae4a0aafe5bd70154012 | [log] [tgz] |
|---|---|---|
| author | Matt Arsenault <Matthew.Arsenault@amd.com> | Fri Sep 12 08:57:47 2025 +0900 |
| committer | GitHub <noreply@github.com> | Fri Sep 12 08:57:47 2025 +0900 |
| tree | 408606dc33dacc3719705832400896ae1c152d2f | |
| parent | 28743fafa6b5358ede23da93f3ca7d52d1b4f75c [diff] |
AMDGPU: Relax legal register operand constraint (#157989) Find a common subclass instead of directly checking for a subclass relationship. This fixes folding logic for unaligned register defs into aligned use contexts. e.g., a vreg_64 def into an av_64_align2 use should be able to find the common subclass vreg_align2. This avoids regressions in future patches. Checking the subclass was also redundant on the subregister path; getMatchingSuperRegClass is sufficient.
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