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63808be395
In case of `var` initializations, SILGen creates a dynamic begin/end_access pair around the initialization store. If it's an initialization (and not a re-assign) it's guanranteed that it's an exlusive access and we can convert the access to an `[init] [static]` access. https://github.com/apple/swift/issues/66496
63 lines
2.1 KiB
Swift
63 lines
2.1 KiB
Swift
// RUN: %target-swift-frontend -emit-sil %s -disable-availability-checking | %FileCheck %s
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// REQUIRES: concurrency
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actor A {
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var x: String = "Hello"
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var y: String = "World"
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}
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// CHECK-LABEL: sil hidden @$s21default_actor_definit1ACACycfc
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// CHECK: builtin "initializeDefaultActor"(%0 : $A) : $()
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// CHECK-LABEL: end sil function '$s21default_actor_definit1ACACycfc'
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actor B {
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var x: String
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var y: String
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init() {
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x = "Hello"
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y = "World"
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}
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}
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// CHECK-LABEL: sil hidden @$s21default_actor_definit1BCACycfc
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// CHECK: builtin "initializeDefaultActor"(%0 : $B) : $()
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// CHECK-LABEL: end sil function '$s21default_actor_definit1BCACycfc'
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actor C {
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var x: String
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var y: Int
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init?(y: Int) {
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self.x = "Hello"
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guard y >= 0 else { return nil }
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self.y = y
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}
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convenience init?(yy: Int) {
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guard yy <= 100 else { return nil }
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self.init(y: yy)
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}
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}
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// CHECK-LABEL: sil hidden @$s21default_actor_definit1CC1yACSgSi_tcfc
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// CHECK: builtin "initializeDefaultActor"(%1 : $C)
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// CHECK: [[X:%.*]] = ref_element_addr %1 : $C, #C.x
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// CHECK-NEXT: [[ACCESS:%.*]] = begin_access [init] [static] [[X]] : $*String
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// CHECK-NEXT: store {{.*}} to [[ACCESS]] : $*String
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// CHECK-NEXT: end_access [[ACCESS]] : $*String
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// CHECK: cond_br {{%.*}}, bb1, bb2
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// CHECK: bb1:
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// CHECK: ref_element_addr %1 : $C, #C.y
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// CHECK: br bb3
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// CHECK: bb2:
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// CHECK: [[X:%.*]] = ref_element_addr %1 : $C, #C.x
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// CHECK-NEXT: [[ACCESS:%.*]] = begin_access [deinit] [static] [[X]] : $*String
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// CHECK-NEXT: destroy_addr [[ACCESS]] : $*String
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// CHECK-NEXT: end_access [[ACCESS]] : $*String
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// CHECK: builtin "destroyDefaultActor"(%1 : $C)
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// CHECK: br bb3
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// CHECK-LABEL: end sil function '$s21default_actor_definit1CC1yACSgSi_tcfc'
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// CHECK-LABEL: sil hidden @$s21default_actor_definit1CC2yyACSgSi_tcfC
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// CHECK-NOT: builtin "initializeDefaultActor"
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// CHECK-NOT: builtin "destroyDefaultActor"
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// CHECK-LABEL: end sil function '$s21default_actor_definit1CC2yyACSgSi_tcfC'
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