| // RUN: %target-swift-frontend -emit-silgen %s | %FileCheck %s |
| |
| func markUsed<T>(_ t: T) {} |
| |
| // rdar://17772217 |
| func testSwitchOnExistential(_ value: Any) { |
| switch value { |
| case true as Bool: markUsed("true") |
| case false as Bool: markUsed("false") |
| default: markUsed("default") |
| } |
| } |
| |
| // CHECK-LABEL: sil hidden @_T010switch_isa23testSwitchOnExistentialyypF : |
| // CHECK: [[ANY:%.*]] = alloc_stack $Any |
| // CHECK: copy_addr %0 to [initialization] [[ANY]] |
| // CHECK: [[BOOL:%.*]] = alloc_stack $Bool |
| // 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]+]] |
| // CHECK: [[IS_BOOL]]: |
| // CHECK: [[T0:%.*]] = load [trivial] [[BOOL]] |
| |
| enum Foo { |
| case A |
| } |
| enum Bar<T> { |
| case B(T) |
| } |
| func testSwitchEnumOnExistential(_ value: Any) { |
| switch value { |
| case Foo.A: |
| () |
| case Bar<Int>.B(let i): |
| () |
| case Bar<Foo>.B(let f): |
| () |
| default: |
| () |
| } |
| } |
| |
| // CHECK-LABEL: sil hidden @_T010switch_isa27testSwitchEnumOnExistentialyypF : $@convention(thin) (@in Any) -> () |
| // CHECK: checked_cast_addr_br copy_on_success Any in {{%.*}} : $*Any to Foo |
| // CHECK: checked_cast_addr_br copy_on_success Any in {{%.*}} : $*Any to Bar<Int> |
| // CHECK: checked_cast_addr_br copy_on_success Any in {{%.*}} : $*Any to Bar<Foo> |
| |
| class B {} |
| class D: B {} |
| |
| func guardFn(_ l: D, _ r: D) -> Bool { return true } |
| |
| // rdar://problem/21087371 |
| // CHECK-LABEL: sil hidden @_T010switch_isa32testSwitchTwoIsPatternsWithGuardyAA1BC_AD1rtF |
| // CHECK: checked_cast_br {{%.*}} : $B to $D, [[R_CAST_YES:bb[0-9]+]], [[R_CAST_NO:bb[0-9]+]] |
| // CHECK: [[R_CAST_YES]]({{.*}}): |
| // CHECK: checked_cast_br {{%.*}} : $B to $D, [[L_CAST_YES:bb[0-9]+]], [[L_CAST_NO:bb[0-9]+]] |
| // CHECK: [[L_CAST_YES]]({{.*}}): |
| // CHECK: function_ref @_T010switch_isa7guardFnSbAA1DC_ADtF |
| // CHECK: cond_br {{%.*}}, [[GUARD_YES:bb[0-9]+]], [[GUARD_NO:bb[0-9]+]] |
| // CHECK: [[GUARD_NO]]: |
| // CHECK-NEXT: destroy_value [[R2:%.*]] : $D |
| // CHECK-NEXT: destroy_value [[L2:%.*]] : $D |
| // CHECK-NEXT: br [[CONT:bb[0-9]+]] |
| // CHECK: [[L_CAST_NO]]: |
| // CHECK-NEXT: destroy_value [[R2:%.*]] : $D |
| // CHECK-NEXT: br [[CONT]] |
| func testSwitchTwoIsPatternsWithGuard(_ l: B, r: B) { |
| switch (l, r) { |
| case (let l2 as D, let r2 as D) where guardFn(l2, r2): |
| break |
| default: |
| break |
| } |
| } |