Don't allow preinitialization to skip dataflow #98318
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Fixes dotnet#97286. This just aborts preinitialization if we see dataflow might be involved. It's a conservative fix. We don't have a good spot to communicate dataflow need (e.g. _everything_ from the cctor could potentially be optimized away if the codegen inlines that knowledge).
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Tagging subscribers to this area: @agocke, @MichalStrehovsky, @jkotas Issue DetailsFixes #97286. This just aborts preinitialization if we see dataflow might be involved. It's a conservative fix. We don't have a good spot to communicate dataflow need (e.g. everything from the cctor could potentially be optimized away if the codegen inlines that knowledge). Cc @dotnet/ilc-contrib
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| class TestIndirectLoads | ||
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| static unsafe U Read<T, U>(T val) where T : unmanaged where U : unmanaged |
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Roslyn generates this as new() constraint which is very unfortunate because it requires dataflow.
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Fixes #97286.
This just aborts preinitialization if we see dataflow might be involved. It's a conservative fix. We don't have a good spot to communicate dataflow need (e.g. everything from the cctor could potentially be optimized away if the codegen inlines that knowledge).
Cc @dotnet/ilc-contrib