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generic_casts.swift
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// RUN: rm -rf %t && mkdir %t
// RUN: %build-irgen-test-overlays
// RUN: %target-swift-frontend(mock-sdk: -sdk %S/Inputs -I %t) -primary-file %s -emit-ir -disable-objc-attr-requires-foundation-module | FileCheck %s
// REQUIRES: CPU=x86_64
// FIXME: rdar://problem/19648117 Needs splitting objc parts out
// XFAIL: linux
import Foundation
import gizmo
// -- Protocol records for cast-to ObjC protocols
// CHECK: @_PROTOCOL__TtP13generic_casts10ObjCProto1_ = private constant
// CHECK: @"\01l_OBJC_LABEL_PROTOCOL_$__TtP13generic_casts10ObjCProto1_" = weak hidden global i8* bitcast ({{.*}} @_PROTOCOL__TtP13generic_casts10ObjCProto1_ to i8*), section "__DATA,__objc_protolist,coalesced,no_dead_strip"
// CHECK: @"\01l_OBJC_PROTOCOL_REFERENCE_$__TtP13generic_casts10ObjCProto1_" = weak hidden global i8* bitcast ({{.*}} @_PROTOCOL__TtP13generic_casts10ObjCProto1_ to i8*), section "__DATA,__objc_protorefs,coalesced,no_dead_strip"
// CHECK: @_PROTOCOL_NSRuncing = private constant
// CHECK: @"\01l_OBJC_LABEL_PROTOCOL_$_NSRuncing" = weak hidden global i8* bitcast ({{.*}} @_PROTOCOL_NSRuncing to i8*), section "__DATA,__objc_protolist,coalesced,no_dead_strip"
// CHECK: @"\01l_OBJC_PROTOCOL_REFERENCE_$_NSRuncing" = weak hidden global i8* bitcast ({{.*}} @_PROTOCOL_NSRuncing to i8*), section "__DATA,__objc_protorefs,coalesced,no_dead_strip"
// CHECK: @_PROTOCOLS__TtC13generic_casts10ObjCClass2 = private constant { i64, [1 x i8*] } {
// CHECK: i64 1,
// CHECK: @_PROTOCOL__TtP13generic_casts10ObjCProto2_
// CHECK: }
// CHECK: @_DATA__TtC13generic_casts10ObjCClass2 = private constant {{.*}} @_PROTOCOLS__TtC13generic_casts10ObjCClass2
// CHECK: @_PROTOCOL_PROTOCOLS__TtP13generic_casts10ObjCProto2_ = private constant { i64, [1 x i8*] } {
// CHECK: i64 1,
// CHECK: @_PROTOCOL__TtP13generic_casts10ObjCProto1_
// CHECK: }
// CHECK: define hidden i64 @_TF13generic_casts8allToInt{{.*}}(%swift.opaque* noalias nocapture, %swift.type* %T)
func allToInt<T>(x: T) -> Int {
return x as! Int
// CHECK: [[BUF:%.*]] = alloca [[BUFFER:.24 x i8.]],
// CHECK: [[INT_TEMP:%.*]] = alloca %Si,
// CHECK: [[TEMP:%.*]] = call %swift.opaque* {{.*}}([[BUFFER]]* [[BUF]], %swift.opaque* %0, %swift.type* %T)
// CHECK: [[T0:%.*]] = bitcast %Si* [[INT_TEMP]] to %swift.opaque*
// CHECK: call i1 @swift_dynamicCast(%swift.opaque* [[T0]], %swift.opaque* [[TEMP]], %swift.type* %T, %swift.type* @_TMSi, i64 7)
// CHECK: [[T0:%.*]] = getelementptr inbounds %Si, %Si* [[INT_TEMP]], i32 0, i32 0
// CHECK: [[INT_RESULT:%.*]] = load i64, i64* [[T0]],
// CHECK: ret i64 [[INT_RESULT]]
}
// CHECK: define hidden void @_TF13generic_casts8intToAll{{.*}}(%swift.opaque* noalias nocapture sret, i64, %swift.type* %T) {{.*}} {
func intToAll<T>(x: Int) -> T {
// CHECK: [[INT_TEMP:%.*]] = alloca %Si,
// CHECK: [[T0:%.*]] = getelementptr inbounds %Si, %Si* [[INT_TEMP]], i32 0, i32 0
// CHECK: store i64 %1, i64* [[T0]],
// CHECK: [[T0:%.*]] = bitcast %Si* [[INT_TEMP]] to %swift.opaque*
// CHECK: call i1 @swift_dynamicCast(%swift.opaque* %0, %swift.opaque* [[T0]], %swift.type* @_TMSi, %swift.type* %T, i64 7)
return x as! T
}
// CHECK: define hidden i64 @_TF13generic_casts8anyToInt{{.*}}(%"protocol<>"* noalias nocapture dereferenceable({{.*}}))
func anyToInt(x: protocol<>) -> Int {
return x as! Int
}
@objc protocol ObjCProto1 {
static func forClass()
static func forInstance()
var prop: NSObject { get }
}
@objc protocol ObjCProto2 : ObjCProto1 {}
@objc class ObjCClass {}
// CHECK: define hidden %objc_object* @_TF13generic_casts9protoCast{{.*}}(%C13generic_casts9ObjCClass*) {{.*}} {
func protoCast(x: ObjCClass) -> protocol<ObjCProto1, NSRuncing> {
// CHECK: load i8*, i8** @"\01l_OBJC_PROTOCOL_REFERENCE_$__TtP13generic_casts10ObjCProto1_"
// CHECK: load i8*, i8** @"\01l_OBJC_PROTOCOL_REFERENCE_$_NSRuncing"
// CHECK: call %objc_object* @swift_dynamicCastObjCProtocolUnconditional(%objc_object* {{%.*}}, i64 2, i8** {{%.*}})
return x as! protocol<ObjCProto1, NSRuncing>
}
@objc class ObjCClass2 : NSObject, ObjCProto2 {
class func forClass() {}
class func forInstance() {}
var prop: NSObject { return self }
}
// <rdar://problem/15313840>
// Class existential to opaque archetype cast
// CHECK: define hidden void @_TF13generic_casts33classExistentialToOpaqueArchetype{{.*}}(%swift.opaque* noalias nocapture sret, %objc_object*, %swift.type* %T)
func classExistentialToOpaqueArchetype<T>(x: ObjCProto1) -> T {
var x = x
// CHECK: [[X:%.*]] = alloca %P13generic_casts10ObjCProto1_
// CHECK: [[LOCAL:%.*]] = alloca %P13generic_casts10ObjCProto1_
// CHECK: [[LOCAL_OPAQUE:%.*]] = bitcast %P13generic_casts10ObjCProto1_* [[LOCAL]] to %swift.opaque*
// CHECK: [[PROTO_TYPE:%.*]] = call %swift.type* @_TMaP13generic_casts10ObjCProto1_()
// CHECK: call i1 @swift_dynamicCast(%swift.opaque* %0, %swift.opaque* [[LOCAL_OPAQUE]], %swift.type* [[PROTO_TYPE]], %swift.type* %T, i64 7)
return x as! T
}