| // RUN: %empty-directory(%t) |
| // RUN: %target-swift-frontend -emit-module -enable-library-evolution -emit-module-path=%t/resilient_protocol.swiftmodule -module-name=resilient_protocol %S/../Inputs/resilient_protocol.swift |
| // RUN: %target-swift-frontend -I %t -emit-ir -enable-library-evolution %s | %FileCheck %s -DINT=i%target-ptrsize |
| // RUN: %target-swift-frontend -I %t -emit-ir -enable-library-evolution -O %s |
| |
| import resilient_protocol |
| |
| @_fixed_layout public protocol FrozenProtocol { |
| func protocolMethod() |
| } |
| |
| public func callOtherProtocolMethod<T : OtherFrozenProtocol>(_ t: T) { |
| t.protocolMethod() |
| } |
| |
| public struct ConformsToFrozenProtocol : FrozenProtocol { |
| public func protocolMethod() {} |
| } |
| |
| // CHECK-LABEL: @"$s16frozen_protocols24ConformsToFrozenProtocolVAA0eF0AAMc" = {{(dllexport )?}}{{(protected )?}}constant %swift.protocol_conformance_descriptor |
| |
| // -- the protocol |
| // CHECK-SAME: @"$s16frozen_protocols14FrozenProtocolMp" |
| |
| // -- the conforming type |
| // CHECK-SAME: @"$s16frozen_protocols24ConformsToFrozenProtocolVMn" |
| |
| // -- the witness table |
| // CHECK-SAME: @"$s16frozen_protocols24ConformsToFrozenProtocolVAA0eF0AAWP" |
| |
| // -- flags |
| // CHECK-SAME: i32 0 |
| // CHECK-SAME: } |
| |
| // @_fixed_layout protocols still emit protocol requirement descriptors though, |
| // which allows for a protocol to be retroactively declared as @_fixed_layout |
| // CHECK-LABEL: @"$s16frozen_protocols14FrozenProtocolP14protocolMethodyyFTq" = {{(dllexport )?}}{{(protected )?}}alias %swift.protocol_requirement |
| |
| // Requirements in @_fixed_layout protocols are called by direct witness |
| // table lookup |
| |
| // CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @"$s16frozen_protocols23callOtherProtocolMethodyyx18resilient_protocol0d6FrozenE0RzlF"(%swift.opaque* noalias nocapture %0, %swift.type* %T, i8** %T.OtherFrozenProtocol) |
| // CHECK: [[ADDR:%.*]] = getelementptr inbounds i8*, i8** %T.OtherFrozenProtocol, i32 1 |
| // CHECK: [[FN:%.*]] = load i8*, i8** [[ADDR]] |
| // CHECK: [[CAST:%.*]] = bitcast i8* [[FN]] to void (%swift.opaque*, %swift.type*, i8**)* |
| // CHECK: call swiftcc void %3(%swift.opaque* noalias nocapture swiftself %0, %swift.type* %T, i8** %T.OtherFrozenProtocol) |
| // CHECK: ret void |
| |
| // @_fixed_layout protocols still emit method dispatch thunks though, which |
| // allows for a protocol to be retroactively declared as @_fixed_layout |
| // CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @"$s16frozen_protocols14FrozenProtocolP14protocolMethodyyFTj"( |
| |
