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c35b86a30d
Don't create a copy in order to pass a value `@in_guaranteed`. Just `store_borrow` the value. rdar://128710064
26 lines
1.1 KiB
Swift
26 lines
1.1 KiB
Swift
// RUN: %target-swift-emit-silgen %s | %FileCheck %s
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// RUN: %target-swift-emit-sil %s -verify
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struct NC : ~Copyable {}
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func loadClosure(_ umrp: UnsafeMutableRawPointer) {
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typealias Enumerator = (borrowing NC) -> Void
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let body = umrp.load(as: Enumerator.self)
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_ = body
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}
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// CHECK-LABEL: sil {{.*}} @$s13rdar1287100642NCVytIegnr_ACIegg_TR : {{.*}} {
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// CHECK: bb0(
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// CHECK-SAME: [[NC:%[^,]+]] :
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// CHECK-SAME: , [[CLOSURE:%[^,]+]] :
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// CHECK-SAME: ):
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// CHECK: [[NC_INDIRECT_ADDR:%[^,]+]] = alloc_stack $NC
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// CHECK: [[NC_INDIRECT_CHECK:%[^,]+]] = mark_unresolved_non_copyable_value [consumable_and_assignable] [[NC_INDIRECT_ADDR]]
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// CHECK: [[NC_INDIRECT:%[^,]+]] = store_borrow [[NC]] to [[NC_INDIRECT_CHECK]]
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// CHECK: [[OUT:%[^,]+]] = alloc_stack $()
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// CHECK: apply [[CLOSURE]]([[OUT]], [[NC_INDIRECT]])
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// CHECK: dealloc_stack [[OUT]] : $*()
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// CHECK: end_borrow [[NC_INDIRECT]]
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// CHECK: dealloc_stack [[NC_INDIRECT_ADDR]]
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// CHECK-LABEL: } // end sil function '$s13rdar1287100642NCVytIegnr_ACIegg_TR'
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