mirror of
https://github.com/apple/swift.git
synced 2026-06-27 12:25:55 +02:00
Jordan Rose
36eae9d4f6
(both C enums and Swift enums declared @objc), because of the "feature" in C of treating a value not declared as a case as a valid value of an enum. No more undefined behavior here! This bit can go in separately from all the work on exhaustive/frozen enums, which is still being discussed and will come later. rdar://problem/20420436
78 lines
2.3 KiB
Swift
78 lines
2.3 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-swift-frontend -assume-parsing-unqualified-ownership-sil -module-name main -primary-file %s %S/Inputs/objc_enum_multi_file_helper.swift -emit-ir | %FileCheck %s
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// RUN: %target-swift-frontend -assume-parsing-unqualified-ownership-sil -disable-objc-attr-requires-foundation-module -emit-module %S/Inputs/objc_enum_multi_file_helper.swift -o %t
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// RUN: %target-swift-frontend -assume-parsing-unqualified-ownership-sil -module-name main -primary-file %s -I %t -DIMPORT -emit-ir | %FileCheck %s
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#if IMPORT
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import objc_enum_multi_file_helper
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#endif
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// CHECK-LABEL: define hidden swiftcc i32 @"$S4main6useFoo{{.*}}F"(i32) {{.*}} {
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func useFoo(_ x: Foo) -> Int32 {
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// CHECK: switch i32 %0, label %[[DEFAULT:.+]] [
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// CHECK-DAG: i32 1, label %[[CASE_B:.+]]
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// CHECK-DAG: i32 2, label %[[CASE_C:.+]]
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// CHECK-DAG: i32 0, label %[[CASE_A:.+]]
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// CHECK: ]
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switch x {
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// CHECK: <label>:[[CASE_B]]
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// CHECK-NEXT: br label %[[FINAL:.+]]
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case .B:
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return 11
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// CHECK: <label>:[[CASE_C]]
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// CHECK-NEXT: br label %[[FINAL]]
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case .C:
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return 15
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// CHECK: <label>:[[CASE_A]]
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// CHECK-NEXT: br label %[[FINAL]]
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case .A:
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return 10
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}
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// CHECK: <label>:[[DEFAULT]]
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// CHECK-NEXT: call void @llvm.trap()
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// CHECK-NEXT: unreachable
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// CHECK: <label>:[[FINAL]]
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// CHECK: %[[RETVAL:.+]] = phi i32 [ 10, %[[CASE_A]] ], [ 15, %[[CASE_C]] ], [ 11, %[[CASE_B]] ]
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// CHECK: ret i32 %[[RETVAL]]
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}
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// CHECK-LABEL: define hidden swiftcc i32 @"$S4main6useBar{{.*}}F"(i32) {{.*}} {
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func useBar(_ x: Bar) -> Int32 {
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// CHECK: switch i32 %0, label %[[DEFAULT:.+]] [
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// CHECK-DAG: i32 6, label %[[CASE_B:.+]]
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// CHECK-DAG: i32 7, label %[[CASE_C:.+]]
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// CHECK-DAG: i32 5, label %[[CASE_A:.+]]
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// CHECK: ]
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switch x {
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// CHECK: <label>:[[CASE_B]]
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// CHECK-NEXT: br label %[[FINAL:.+]]
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case .B:
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return 11
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// CHECK: <label>:[[CASE_C]]
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// CHECK-NEXT: br label %[[FINAL]]
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case .C:
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return 15
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// CHECK: <label>:[[CASE_A]]
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// CHECK-NEXT: br label %[[FINAL]]
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case .A:
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return 10
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}
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// CHECK: <label>:[[DEFAULT]]
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// CHECK-NEXT: call void @llvm.trap()
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// CHECK-NEXT: unreachable
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// CHECK: <label>:[[FINAL]]
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// CHECK: %[[RETVAL:.+]] = phi i32 [ 10, %[[CASE_A]] ], [ 15, %[[CASE_C]] ], [ 11, %[[CASE_B]] ]
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// CHECK: ret i32 %[[RETVAL]]
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}
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