IRGen: Unwrap one-element tuple metadata in emitDynamicTupleTypeMetadataRef() [5.9] #65560
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…ataRef() This matches the static behavior of Type::subst() and the SIL optimizer.
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@swift-ci Please test |
hborla
approved these changes
May 1, 2023
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Description: We need to unwrap one-element tuples after pack expansion in IRGen, so that the dynamic behavior of unspecialized generic code matches specialized generic code as well as call-site type substitution.
Risk: Low, the change only concerns variadic generics which are a new feature.
Reviewed by: @hborla
Radar: rdar://problem/108759306
Tested: New test cases added