swift/test/embedded/classes-stack-promotion.swift at main · ian-twilightcoder/swift · GitHub

Name: swift/test/embedded/classes-stack-promotion.swift at main · ian-twilightcoder/swift · GitHub
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// RUN: %empty-directory(%t)
// RUN: %target-swift-frontend -O -Xllvm -sil-disable-pass=function-signature-opts %s -parse-as-library -enable-experimental-feature Embedded -module-name main -emit-irgen | %FileCheck %s --check-prefix CHECK-IR
// RUN: %target-swift-frontend -O -Xllvm -sil-disable-pass=function-signature-opts %s -parse-as-library -enable-experimental-feature Embedded -c -o %t/main.o
// RUN: %target-clang %t/main.o -o %t/a.out -dead_strip
// RUN: %target-run %t/a.out | %FileCheck %s

// REQUIRES: swift_in_compiler
// REQUIRES: executable_test
// REQUIRES: optimized_stdlib
// REQUIRES: swift_feature_Embedded

publicclassMyClass{
publicinit(){print("MyClass.init")}
deinit{print("MyClass.deinit")}
publicfunc foo(){print("MyClass.foo")}
}

publicclassMySubClass:MyClass{
publicoverrideinit(){print("MySubClass.init")}
deinit{print("MySubClass.deinit")}
publicoverridefunc foo(){print("MySubClass.foo")}
}

@inline(never)
publicfunc bar(o:MyClass){
 o.foo()
}

finalpublicclassMyFinalClass{
publicinit(){print("MyFinalClass.init")}
deinit{print("MyFinalClass.deinit")}
publicfunc foo(){print("MyFinalClass.foo")}
}

publicstructMyStruct{
@inline(never)
init(_ c:MyFinalClass){
 c.foo()
}
}

@main
structMain{
staticfunc test1(){
leto=MySubClass()
 // CHECK: MySubClass.init
 // CHECK: MyClass.init
 o.foo()
 // CHECK: MySubClass.foo
bar(o: o)
 // CHECK: MySubClass.foo
 // CHECK: MySubClass.deinit
 // CHECK: MyClass.deinit
}

staticfunc test2()->MyStruct{
letc=MyFinalClass()
 // CHECK: MyFinalClass.init
returnMyStruct(c)
 // CHECK: MyFinalClass.foo
 // CHECK: MyFinalClass.deinit
}

staticfunc main(){
test1()
print("")
test2()
}
}

// Check that stack promotion did really happen

// CHECK-IR: define {{.*}}@"$e4main8MyStructVyAcA0B10FinalClassCcfC"
// CHECK-IR-NEXT: entry:
// CHECK-IR-NEXT: call {{.*}}@"$es5print_10terminatorys12StaticStringV_ADtF"
// CHECK-IR-NEXT: call {{.*}}@swift_release
// CHECK-IR-NEXT: ret void
// CHECK-IR-NEXT: }

// CHECK-IR: define {{.*}}@main
// CHECK-IR-NEXT: entry:
// CHECK-IR-NEXT: alloca %T4main10MySubClassC
// CHECK-IR-NEXT: alloca %T4main12MyFinalClassC
// CHECK-IR-NEXT: call {{.*}}@swift_initStackObject
// CHECK-IR-NEXT: call {{.*}}@"$es5print_10terminatorys12StaticStringV_ADtF"
// CHECK-IR-NEXT: call {{.*}}@"$es5print_10terminatorys12StaticStringV_ADtF"
// CHECK-IR-NEXT: call {{.*}}@"$es5print_10terminatorys12StaticStringV_ADtF"
// CHECK-IR-NEXT: call {{.*}}@"$e4main3bar1oyAA7MyClassC_tF"
// CHECK-IR-NEXT: call {{.*}}@swift_setDeallocating
// CHECK-IR-NEXT: call {{.*}}@"$es5print_10terminatorys12StaticStringV_ADtF"
// CHECK-IR-NEXT: call {{.*}}@"$es5print_10terminatorys12StaticStringV_ADtF"
// CHECK-IR-NEXT: call {{.*}}@llvm.lifetime.end.p0
// CHECK-IR-NEXT: call {{.*}}@"$es5print_10terminatorys12StaticStringV_ADtF"
// CHECK-IR-NEXT: call {{.*}}@swift_initStackObject
// CHECK-IR-NEXT: call {{.*}}@"$es5print_10terminatorys12StaticStringV_ADtF"
// CHECK-IR-NEXT: call {{.*}}@"$e4main8MyStructVyAcA0B10FinalClassCcfC"
// CHECK-IR-NEXT: call {{.*}}@llvm.lifetime.end.p0
// CHECK-IR-NEXT: ret {{.*}}0
// CHECK-IR-NEXT: }