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74 lines
2.3 KiB
Swift
74 lines
2.3 KiB
Swift
// RUN: %target-swift-frontend -emit-silgen %s | %FileCheck %s
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func markUsed<T>(_ t: T) {}
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// rdar://17772217
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func testSwitchOnExistential(_ value: Any) {
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switch value {
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case true as Bool: markUsed("true")
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case false as Bool: markUsed("false")
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default: markUsed("default")
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}
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}
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// CHECK-LABEL: sil hidden @_T010switch_isa23testSwitchOnExistentialyyypF :
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// CHECK: [[ANY:%.*]] = alloc_stack $Any
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// CHECK: copy_addr %0 to [initialization] [[ANY]]
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// CHECK: [[BOOL:%.*]] = alloc_stack $Bool
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// CHECK: checked_cast_addr_br copy_on_success Any in [[ANY]] : $*Any to Bool in [[BOOL]] : $*Bool, [[IS_BOOL:bb[0-9]+]], [[IS_NOT_BOOL:bb[0-9]+]]
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// CHECK: [[IS_BOOL]]:
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// CHECK: [[T0:%.*]] = load [trivial] [[BOOL]]
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enum Foo {
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case A
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}
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enum Bar<T> {
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case B(T)
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}
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func testSwitchEnumOnExistential(_ value: Any) {
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switch value {
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case Foo.A:
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()
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case Bar<Int>.B(let i):
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()
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case Bar<Foo>.B(let f):
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()
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default:
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()
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}
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}
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// CHECK-LABEL: sil hidden @_T010switch_isa27testSwitchEnumOnExistentialyyypF : $@convention(thin) (@in Any) -> ()
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// CHECK: checked_cast_addr_br copy_on_success Any in {{%.*}} : $*Any to Foo
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// CHECK: checked_cast_addr_br copy_on_success Any in {{%.*}} : $*Any to Bar<Int>
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// CHECK: checked_cast_addr_br copy_on_success Any in {{%.*}} : $*Any to Bar<Foo>
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class B {}
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class D: B {}
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func guardFn(_ l: D, _ r: D) -> Bool { return true }
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// rdar://problem/21087371
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// CHECK-LABEL: sil hidden @_T010switch_isa32testSwitchTwoIsPatternsWithGuard_1ryAA1BC_AEtF
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// CHECK: checked_cast_br {{%.*}} : $B to $D, [[R_CAST_YES:bb[0-9]+]], [[R_CAST_NO:bb[0-9]+]]
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// CHECK: [[R_CAST_YES]]({{.*}}):
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// CHECK: checked_cast_br {{%.*}} : $B to $D, [[L_CAST_YES:bb[0-9]+]], [[L_CAST_NO:bb[0-9]+]]
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// CHECK: [[L_CAST_YES]]({{.*}}):
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// CHECK: function_ref @_T010switch_isa7guardFnySbAA1DC_ADtF
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// CHECK: cond_br {{%.*}}, [[GUARD_YES:bb[0-9]+]], [[GUARD_NO:bb[0-9]+]]
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// CHECK: [[GUARD_NO]]:
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// CHECK-NEXT: destroy_value [[R2:%.*]] : $D
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// CHECK-NEXT: destroy_value [[L2:%.*]] : $D
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// CHECK-NEXT: br [[CONT:bb[0-9]+]]
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// CHECK: [[L_CAST_NO]]:
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// CHECK-NEXT: destroy_value [[R2:%.*]] : $D
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// CHECK-NEXT: br [[CONT]]
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func testSwitchTwoIsPatternsWithGuard(_ l: B, r: B) {
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switch (l, r) {
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case (let l2 as D, let r2 as D) where guardFn(l2, r2):
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break
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default:
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break
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}
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}
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