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53bfc767a3
SIL type lowering erases DynamicSelfType, so we generate incorrect code when casting to DynamicSelfType. Fixing this requires a fair amount of plumbing, but most of the changes are mechanical. Note that the textual SIL syntax for casts has changed slightly; the target type is now a formal type without a '$', not a SIL type. Also, the unconditional_checked_cast_value and checked_cast_value_br instructions now take the _source_ formal type as well, just like the *_addr forms they are intended to replace.
37 lines
921 B
Swift
37 lines
921 B
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-swift-frontend -emit-ir -wmo -O %s > %t/out.txt
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// RUN: %FileCheck %s < %t/out.txt
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// RUN: %FileCheck %s --check-prefix=NEGATIVE < %t/out.txt
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// Both should be emitted:
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// CHECK: @"$s19lazy_field_metadata011GenericWithD5FieldVMn" = hidden constant
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// CHECK: @"$s19lazy_field_metadata24GenericWithConcreteFieldVMn" = hidden constant
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struct GenericWithConcreteField<T> {
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let z = 123
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}
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struct GenericWithGenericField<T> {
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var field = GenericWithConcreteField<T>()
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}
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@_optimize(none)
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public func takeMetadata<T>(_: T.Type) {}
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public func forceMetadata() {
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takeMetadata(GenericWithGenericField<Int>.self)
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}
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// These two types are completely unused.
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struct TypeOfProperty {
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var x: Int
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}
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struct HasPropertyType {
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var p: TypeOfProperty
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}
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// NEGATIVE-NOT: @"$s19lazy_field_metadata14TypeOfPropertyVMn"
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// NEGATIVE-NOT: @"$s19lazy_field_metadata15HasPropertyTypeVMn"
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