Add type loader support for resolving static virtuals #80601
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The implementation of static virtuals was limited to compile-time resolution in .NET 7. I erroneously believed runtime resolution can only happen with `MakeGenericType`/`MakeGenericMethod` and therefore falls into the general "don't do dynamic code" bucket. But this is also reachable from generic instance virtual method resolution that is also dynamic-like (we don't attempt to precompute all runtime artifacts, only canonical code). This contains compiler changes to start tracking static virtual method use within type loader templates the same way how we track instance generic virtual method use (i.e. those static virtual uses that happen at compile time are not tracked in this - only the dynamic ones). We also make sure the computed targets get generated into the appropriate table. The other part of the change is a type loader change to call into the generic virtual method resolution logic when needed.
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Tagging subscribers to this area: @agocke, @MichalStrehovsky, @jkotas Issue DetailsFixes #77070. The implementation of static virtuals was limited to compile-time resolution in .NET 7. I erroneously believed runtime resolution can only happen with This contains compiler changes to start tracking static virtual method use within type loader templates the same way how we track instance generic virtual method use (i.e. those static virtual uses that happen at compile time are not tracked in this - only the dynamic ones). We also make sure the computed targets get generated into the appropriate table. The other part of the change is a type loader change to call into the generic virtual method resolution logic when needed. Cc @dotnet/ilc-contrib
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src/coreclr/tools/aot/ILCompiler.Compiler/Compiler/DependencyAnalysis/GVMDependenciesNode.cs
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src/coreclr/tools/aot/ILCompiler.Compiler/Compiler/DependencyAnalysis/NativeLayoutVertexNode.cs
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...nativeaot/System.Private.TypeLoader/src/Internal/Runtime/TypeLoader/GenericDictionaryCell.cs
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Co-authored-by: Jan Kotas <jkotas@microsoft.com>
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Fixes #77070.
The implementation of static virtuals was limited to compile-time resolution in .NET 7. I erroneously believed runtime resolution can only happen with
MakeGenericType/MakeGenericMethodand therefore falls into the general "don't do dynamic code" bucket. But this is also reachable from generic instance virtual method resolution that is also dynamic-like (we don't attempt to precompute all runtime artifacts, only canonical code).This contains compiler changes to start tracking static virtual method use within type loader templates the same way how we track instance generic virtual method use (i.e. those static virtual uses that happen at compile time are not tracked in this - only the dynamic ones). We also make sure the computed targets get generated into the appropriate table.
The other part of the change is a type loader change to call into the generic virtual method resolution logic when needed.
Cc @dotnet/ilc-contrib