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In opaque values mode, emit the unowned copy instructions to convert as follows: strong_copy_unowned_value: `@owned $sil_unowned T` -> `@owned $T` unowned_copy_value: `@owned T` -> `@owned $sil_unowned T` Doing so is necessary in opaque values mode where it is needed to deal with unowned values directly rather than indirectly via `load_unowned`s and `store_unowned`s.
26 lines
1.4 KiB
Swift
26 lines
1.4 KiB
Swift
// RUN: %target-swift-emit-silgen -enable-sil-opaque-values -Xllvm -sil-full-demangle -disable-objc-interop -primary-file %s | %FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-%target-runtime
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// Test SILGen -enable-sil-opaque-values with tests that depend on the stdlib and objc interop.
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// REQUIRES: objc_interop
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// CHECK-LABEL: sil {{.*}}[ossa] @$s28opaque_values_silgen_nonobjc13UnownedVarBoxV5valuexvg : {{.*}} {
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// CHECK: bb0([[INSTANCE:%[^,]+]] :
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// CHECK: [[UNOWNED_VALUE:%[^,]+]] = struct_extract [[INSTANCE]]
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// CHECK: [[STRONG_VALUE:%[^,]+]] = strong_copy_unowned_value [[UNOWNED_VALUE]]
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// CHECK: return [[STRONG_VALUE]]
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// CHECK-LABEL: } // end sil function '$s28opaque_values_silgen_nonobjc13UnownedVarBoxV5valuexvg'
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// CHECK-LABEL: sil {{.*}}[ossa] @$s28opaque_values_silgen_nonobjc13UnownedVarBoxV5valueACyxGx_tcfC : {{.*}} {
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// CHECK: bb0([[STRONG_VALUE:%[^,]+]] :
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// CHECK: [[WRAPPED_IN_UNOWNED_TYPE:%[^,]+]] = ref_to_unowned [[STRONG_VALUE]]
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// CHECK: [[UNOWNED_VALUE:%[^,]+]] = copy_value [[WRAPPED_IN_UNOWNED_TYPE]]
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// CHECK: destroy_value [[STRONG_VALUE]]
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// CHECK: [[RETVAL:%[^,]+]] = struct $UnownedVarBox<T> ([[UNOWNED_VALUE]] : $@sil_unowned T)
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// CHECK: return [[RETVAL]]
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// CHECK-LABEL: } // end sil function '$s28opaque_values_silgen_nonobjc13UnownedVarBoxV5valueACyxGx_tcfC'
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struct UnownedVarBox<T : AnyObject> {
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unowned var value: T
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}
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