| // RUN: %target-swift-frontend -emit-sil -O %s | FileCheck %s |
| |
| // Check that this file does not crash a compiler. |
| // |
| // The devirtualizer should not devirtualize calls inside fragile functions, |
| // if the resulting direct call would refer to a private or hidden symbol. |
| // |
| // rdar://21408247 |
| |
| public class ExternalClass { |
| fileprivate func foo() {} |
| } |
| |
| public func getExternalClass() -> ExternalClass { |
| return ExternalClass() |
| } |
| |
| // Note: This will eventually be illegal (to have a public @_transparent function |
| // referring to a private method), but for now it lets us test what can and |
| // can't be optimized. |
| // CHECK-LABEL: sil [transparent] [fragile] @_TTSfq4g___TF26devirt_access_other_module9invokeFooFCS_13ExternalClassT_ |
| // CHECK-NOT: function_ref |
| // CHECK: class_method |
| // CHECK-NOT: function_ref |
| // CHECK: apply |
| // CHECK-NOT: function_ref |
| // CHECK-NOT: checked_cast_br |
| // CHECK-NOT: bb1 |
| // CHECK: return |
| @_transparent public func invokeFoo(_ obj: ExternalClass) { |
| obj.foo() |
| } |
| |
| private class PrivateSubclass : ExternalClass { |
| override fileprivate func foo() {} |
| } |
| |
| internal class InternalSubclass : ExternalClass { |
| override fileprivate func foo() {} |
| } |
