[clang] [llvm] [polly] [PassManager] Make passes inherit from RequiredPassInfoMixin/OptionalPassInfoMixin (PR #192120)

[Nikita Popov via llvm-commits]

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@@ -44,8 +44,8 @@ template <typename AnalysisT, bool IsSimple,
           typename AnalysisGraphTraitsT =
               DefaultAnalysisGraphTraits<typename AnalysisT::Result &, GraphT>>
 struct DOTGraphTraitsViewer
-    : PassInfoMixin<DOTGraphTraitsViewer<AnalysisT, IsSimple, GraphT,
-                                         AnalysisGraphTraitsT>> {
+    : OptionalPassInfoMixin<DOTGraphTraitsViewer<AnalysisT, IsSimple, GraphT,
+                                                 AnalysisGraphTraitsT>> {
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nikic wrote:

I guess it's orthogonal to the mass change, but this should probably be required similar to printer passes?

https://github.com/llvm/llvm-project/pull/192120