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db9103cc78
When building with opaque values enable, types which would otherwise get AddressOnlyTypeLowering instead get OpaqueValueTypeLowering. When such types need to be copied into an address, the emitCopyInto method gets called on the OpaqueValueTypeLowering. So it must be implemented. Additionally, vary its implementation based on whether the module is address-lowered. If it's not address-lowered, emit a copy-into as if the type were loadable. If it is address-lowered, emit a copy-into as if the type were address-only.
23 lines
902 B
Plaintext
23 lines
902 B
Plaintext
// RUN: %target-sil-opt -enable-sil-verify-all %s -address-lowering -diagnostic-constant-propagation -type-lowering-force-opaque-value-lowering | %FileCheck %s
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sil_stage canonical
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struct G<T> {
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var t: T
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}
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// CHECK-LABEL: sil [ossa] @checked_cast_same_type : {{.*}} {
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// CHECK: copy_addr [take]
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// CHECK-LABEL: } // end sil function 'checked_cast_same_type'
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sil [ossa] @checked_cast_same_type : $@convention(thin) <T> () -> () {
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%addr_src = alloc_stack $G<T>
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%addr_dest = alloc_stack $G<T>
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apply undef<T>(%addr_src) : $@convention(thin) <U> () -> @out G<U>
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unconditional_checked_cast_addr G<T> in %addr_src : $*G<T> to G<T> in %addr_dest : $*G<T>
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apply undef<T>(%addr_dest) : $@convention(thin) <U> (@in_guaranteed G<U>) -> ()
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destroy_addr %addr_dest : $*G<T>
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dealloc_stack %addr_dest : $*G<T>
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dealloc_stack %addr_src : $*G<T>
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%retval = tuple ()
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return %retval : $()
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}
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