// RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -emit-llvm -o - -mconstructor-aliases -fcxx-exceptions -fexceptions -O1 -disable-llvm-passes -std=c++03 > %t // RUN: FileCheck --check-prefix=CHECK1 --input-file=%t %s // RUN: FileCheck --check-prefix=CHECK2 --input-file=%t %s // RUN: FileCheck --check-prefix=CHECK3 --input-file=%t %s // RUN: FileCheck --check-prefixes=CHECK4,CHECK4v03 --input-file=%t %s // RUN: FileCheck --check-prefixes=CHECK5,CHECK5v03 --input-file=%t %s // RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -emit-llvm -o - -mconstructor-aliases -fcxx-exceptions -fexceptions -O1 -disable-llvm-passes -std=c++11 > %t2 // RUN: FileCheck --check-prefix=CHECK1 --input-file=%t2 %s // RUN: FileCheck --check-prefix=CHECK2v11 --input-file=%t2 %s // RUN: FileCheck --check-prefix=CHECK3 --input-file=%t2 %s // RUN: FileCheck --check-prefixes=CHECK4,CHECK4v11 --input-file=%t2 %s // RUN: FileCheck --check-prefixes=CHECK5,CHECK5v11 --input-file=%t2 %s // RUN: FileCheck --check-prefix=CHECK6 --input-file=%t2 %s // REQUIRES: asserts struct A { int a; ~A(); }; // Base with non-trivial destructor struct B : A { ~B(); }; B::~B() { } // Field with non-trivial destructor struct C { A a; ~C(); }; C::~C() { } namespace PR7526 { extern void foo(); struct allocator { ~allocator() throw(); }; struct allocator_derived : allocator { }; // CHECK1-LABEL: define void @_ZN6PR75263fooEv() // CHECK1: call void {{.*}} @_ZN6PR75269allocatorD2Ev // CHECK1-LABEL: define void @_ZN6PR75269allocatorD2Ev(%"struct.PR7526::allocator"* {{[^,]*}} %this) unnamed_addr // CHECK1: call void @__cxa_call_unexpected allocator::~allocator() throw() { foo(); } void foo() { allocator_derived ad; } } // PR5084 template class A1 { ~A1(); }; template<> A1::~A1(); // PR5529 namespace PR5529 { struct A { ~A(); }; A::~A() { } struct B : A { virtual ~B(); }; B::~B() {} } // FIXME: there's a known problem in the codegen here where, if one // destructor throws, the remaining destructors aren't run. Fix it, // then make this code check for it. namespace test0 { void foo(); struct VBase { ~VBase(); }; struct Base { ~Base(); }; struct Member { ~Member(); }; struct A : Base { Member M; ~A(); }; // The function-try-block won't suppress -mconstructor-aliases here. A::~A() try { } catch (int i) {} // complete destructor alias tested above // CHECK2-LABEL: @_ZN5test01AD1Ev = unnamed_addr alias {{.*}} @_ZN5test01AD2Ev // CHECK2-LABEL: define void @_ZN5test01AD2Ev(%"struct.test0::A"* {{[^,]*}} %this) unnamed_addr // CHECK2: invoke void @_ZN5test06MemberD1Ev // CHECK2: unwind label [[MEM_UNWIND:%[a-zA-Z0-9.]+]] // CHECK2: invoke void @_ZN5test04BaseD2Ev // CHECK2: unwind label [[BASE_UNWIND:%[a-zA-Z0-9.]+]] // In C++11, the destructors are often known not to throw. // CHECK2v11-LABEL: @_ZN5test01AD1Ev = unnamed_addr alias {{.*}} @_ZN5test01AD2Ev // CHECK2v11-LABEL: define void @_ZN5test01AD2Ev(%"struct.test0::A"* {{[^,]*}} %this) unnamed_addr // CHECK2v11: call void @_ZN5test06MemberD1Ev // CHECK2v11: call void @_ZN5test04BaseD2Ev struct B : Base, virtual VBase { Member M; ~B(); }; B::~B() try { } catch (int i) {} // It will suppress the delegation optimization here, though. // CHECK2-LABEL: define void @_ZN5test01BD2Ev(%"struct.test0::B"* {{[^,]*}} %this, i8** %vtt) unnamed_addr // CHECK2: invoke void @_ZN5test06MemberD1Ev // CHECK2: unwind label [[MEM_UNWIND:%[a-zA-Z0-9.]+]] // CHECK2: invoke void @_ZN5test04BaseD2Ev // CHECK2: unwind label [[BASE_UNWIND:%[a-zA-Z0-9.]+]] // CHECK2v11-LABEL: define void @_ZN5test01BD2Ev(%"struct.test0::B"* {{[^,]*}} %this, i8** %vtt) unnamed_addr // CHECK2v11: call void @_ZN5test06MemberD1Ev // CHECK2v11: call void @_ZN5test04BaseD2Ev // CHECK2-LABEL: define void @_ZN5test01BD1Ev(%"struct.test0::B"* {{[^,]*}} %this) unnamed_addr // CHECK2: invoke void @_ZN5test06MemberD1Ev // CHECK2: unwind label [[MEM_UNWIND:%[a-zA-Z0-9.]+]] // CHECK2: invoke void @_ZN5test04BaseD2Ev // CHECK2: unwind label [[BASE_UNWIND:%[a-zA-Z0-9.]+]] // CHECK2: invoke void @_ZN5test05VBaseD2Ev // CHECK2: unwind label [[VBASE_UNWIND:%[a-zA-Z0-9.]+]] // CHECK2v11-LABEL: define void @_ZN5test01BD1Ev(%"struct.test0::B"* {{[^,]*}} %this) unnamed_addr // CHECK2v11: call void @_ZN5test06MemberD1Ev // CHECK2v11: call void @_ZN5test04BaseD2Ev // CHECK2v11: call void @_ZN5test05VBaseD2Ev } // Test base-class aliasing. namespace test1 { struct A { ~A(); char ***m; }; // non-trivial destructor struct B { ~B(); }; // non-trivial destructor struct Empty { }; // trivial destructor, empty struct NonEmpty { int x; }; // trivial destructor, non-empty // There must be a definition in this translation unit for the alias // optimization to apply. A::~A() { delete m; } struct M : A { ~M(); }; M::~M() {} // CHECK3: @_ZN5test11MD2Ev = unnamed_addr alias {{.*}} @_ZN5test11AD2Ev struct N : A, Empty { ~N(); }; N::~N() {} // CHECK3: @_ZN5test11ND2Ev = unnamed_addr alias {{.*}} @_ZN5test11AD2Ev struct O : Empty, A { ~O(); }; O::~O() {} // CHECK3: @_ZN5test11OD2Ev = unnamed_addr alias {{.*}} @_ZN5test11AD2Ev struct P : NonEmpty, A { ~P(); }; P::~P() {} // CHECK3-LABEL: define void @_ZN5test11PD2Ev(%"struct.test1::P"* {{[^,]*}} %this) unnamed_addr struct Q : A, B { ~Q(); }; Q::~Q() {} // CHECK3-LABEL: define void @_ZN5test11QD2Ev(%"struct.test1::Q"* {{[^,]*}} %this) unnamed_addr struct R : A { ~R(); }; R::~R() { A a; } // CHECK3-LABEL: define void @_ZN5test11RD2Ev(%"struct.test1::R"* {{[^,]*}} %this) unnamed_addr struct S : A { ~S(); int x; }; S::~S() {} // CHECK4: @_ZN5test11SD2Ev = unnamed_addr alias {{.*}}, bitcast {{.*}} @_ZN5test11AD2Ev struct T : A { ~T(); B x; }; T::~T() {} // CHECK4-LABEL: define void @_ZN5test11TD2Ev(%"struct.test1::T"* {{[^,]*}} %this) unnamed_addr // The VTT parameter prevents this. We could still make this work // for calling conventions that are safe against extra parameters. struct U : A, virtual B { ~U(); }; U::~U() {} // CHECK4-LABEL: define void @_ZN5test11UD2Ev(%"struct.test1::U"* {{[^,]*}} %this, i8** %vtt) unnamed_addr } // PR6471 namespace test2 { struct A { ~A(); char ***m; }; struct B : A { ~B(); }; B::~B() {} // CHECK4-LABEL: define void @_ZN5test21BD2Ev(%"struct.test2::B"* {{[^,]*}} %this) unnamed_addr // CHECK4: call void @_ZN5test21AD2Ev } // PR7142 namespace test3 { struct A { virtual ~A(); }; struct B { virtual ~B(); }; namespace { // internal linkage => deferred struct C : A, B {}; // ~B() in D requires a this-adjustment thunk struct D : C {}; // D::~D() is an alias to C::~C() } void test() { new D; // Force emission of D's vtable } // CHECK4-LABEL: define internal void @_ZN5test312_GLOBAL__N_11CD2Ev(%"struct.test3::(anonymous namespace)::C"* {{[^,]*}} %this) unnamed_addr // CHECK4v03: invoke void @_ZN5test31BD2Ev( // CHECK4v11: call void @_ZN5test31BD2Ev( // CHECK4: call void @_ZN5test31AD2Ev( // CHECK4: ret void // CHECK4-LABEL: define internal void @_ZN5test312_GLOBAL__N_11DD0Ev(%"struct.test3::(anonymous namespace)::D"* {{[^,]*}} %this) unnamed_addr // CHECK4v03-SAME: personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) // CHECK4v03: invoke void {{.*}} @_ZN5test312_GLOBAL__N_11CD2Ev // CHECK4v11: call void {{.*}} @_ZN5test312_GLOBAL__N_11CD2Ev // CHECK4: call void @_ZdlPv({{.*}}) [[NUW:#[0-9]+]] // CHECK4: ret void // CHECK4v03: landingpad { i8*, i32 } // CHECK4v03-NEXT: cleanup // CHECK4v03: call void @_ZdlPv({{.*}}) [[NUW]] // CHECK4v03: resume { i8*, i32 } // CHECK4v11-NOT: landingpad // CHECK4-LABEL: define internal void @_ZThn8_N5test312_GLOBAL__N_11DD1Ev( // CHECK4: getelementptr inbounds i8, i8* {{.*}}, i64 -8 // CHECK4: call void {{.*}} @_ZN5test312_GLOBAL__N_11CD2Ev // CHECK4: ret void // CHECK4-LABEL: define internal void @_ZThn8_N5test312_GLOBAL__N_11DD0Ev( // CHECK4: getelementptr inbounds i8, i8* {{.*}}, i64 -8 // CHECK4: call void @_ZN5test312_GLOBAL__N_11DD0Ev( // CHECK4: ret void // CHECK4-LABEL: define internal void @_ZN5test312_GLOBAL__N_11CD0Ev(%"struct.test3::(anonymous namespace)::C"* {{[^,]*}} %this) unnamed_addr // CHECK4v03-SAME: personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) // CHECK4v03: invoke void @_ZN5test312_GLOBAL__N_11CD2Ev( // CHECK4v11: call void @_ZN5test312_GLOBAL__N_11CD2Ev( // CHECK4: call void @_ZdlPv({{.*}}) [[NUW]] // CHECK4: ret void // CHECK4v03: landingpad { i8*, i32 } // CHECK4v03-NEXT: cleanup // CHECK4v03: call void @_ZdlPv({{.*}}) [[NUW]] // CHECK4v03: resume { i8*, i32 } // CHECK4-LABEL: define internal void @_ZThn8_N5test312_GLOBAL__N_11CD1Ev( // CHECK4: getelementptr inbounds i8, i8* {{.*}}, i64 -8 // CHECK4: call void @_ZN5test312_GLOBAL__N_11CD2Ev( // CHECK4: ret void // CHECK4-LABEL: define internal void @_ZThn8_N5test312_GLOBAL__N_11CD0Ev( // CHECK4: getelementptr inbounds i8, i8* {{.*}}, i64 -8 // CHECK4: call void @_ZN5test312_GLOBAL__N_11CD0Ev( // CHECK4: ret void // CHECK4-LABEL: declare void @_ZN5test31BD2Ev( // CHECK4-LABEL: declare void @_ZN5test31AD2Ev( // CHECK4: attributes [[NUW]] = {{[{].*}} nounwind {{.*[}]}} } namespace test4 { struct A { ~A(); }; // CHECK5-LABEL: define void @_ZN5test43fooEv() // CHECK5: call void @_ZN5test41AD1Ev // CHECK5: ret void void foo() { { A a; goto failure; } failure: return; } // CHECK5-LABEL: define void @_ZN5test43barEi( // CHECK5: [[X:%.*]] = alloca i32 // CHECK5-NEXT: [[A:%.*]] = alloca // CHECK5: br label // CHECK5: [[TMP:%.*]] = load i32, i32* [[X]] // CHECK5-NEXT: [[CMP:%.*]] = icmp ne i32 [[TMP]], 0 // CHECK5-NEXT: br i1 // CHECK5: call void @_ZN5test41AD1Ev( // CHECK5: br label // CHECK5: [[TMP:%.*]] = load i32, i32* [[X]] // CHECK5: [[TMP2:%.*]] = add nsw i32 [[TMP]], -1 // CHECK5: store i32 [[TMP2]], i32* [[X]] // CHECK5: br label // CHECK5: ret void void bar(int x) { for (A a; x; ) { x--; } } } // PR7575 namespace test5 { struct A { ~A(); }; // CHECK5-LABEL: define void @_ZN5test53fooEv() // CHECK5: [[ELEMS:%.*]] = alloca [5 x [[A:%.*]]], align // CHECK5v03-NEXT: [[EXN:%.*]] = alloca i8* // CHECK5v03-NEXT: [[SEL:%.*]] = alloca i32 // CHECK5-NEXT: [[PELEMS:%.*]] = bitcast [5 x [[A]]]* [[ELEMS]] to i8* // CHECK5-NEXT: call void @llvm.lifetime.start.p0i8(i64 5, i8* [[PELEMS]]) // CHECK5-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [5 x [[A]]], [5 x [[A]]]* [[ELEMS]], i32 0, i32 0 // CHECK5-NEXT: [[END:%.*]] = getelementptr inbounds [[A]], [[A]]* [[BEGIN]], i64 5 // CHECK5-NEXT: br label // CHECK5: [[POST:%.*]] = phi [[A]]* [ [[END]], {{%.*}} ], [ [[ELT:%.*]], {{%.*}} ] // CHECK5-NEXT: [[ELT]] = getelementptr inbounds [[A]], [[A]]* [[POST]], i64 -1 // CHECK5v03-NEXT: invoke void @_ZN5test51AD1Ev([[A]]* {{[^,]*}} [[ELT]]) // CHECK5v11-NEXT: call void @_ZN5test51AD1Ev([[A]]* {{[^,]*}} [[ELT]]) // CHECK5: [[T0:%.*]] = icmp eq [[A]]* [[ELT]], [[BEGIN]] // CHECK5-NEXT: br i1 [[T0]], // CHECK5: call void @llvm.lifetime.end // CHECK5-NEXT: ret void // lpad // CHECK5v03: [[EMPTY:%.*]] = icmp eq [[A]]* [[BEGIN]], [[ELT]] // CHECK5v03-NEXT: br i1 [[EMPTY]] // CHECK5v03: [[AFTER:%.*]] = phi [[A]]* [ [[ELT]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ] // CHECK5v03-NEXT: [[CUR:%.*]] = getelementptr inbounds [[A]], [[A]]* [[AFTER]], i64 -1 // CHECK5v03-NEXT: invoke void @_ZN5test51AD1Ev([[A]]* {{[^,]*}} [[CUR]]) // CHECK5v03: [[DONE:%.*]] = icmp eq [[A]]* [[CUR]], [[BEGIN]] // CHECK5v03-NEXT: br i1 [[DONE]], // CHECK5v11-NOT: landingpad // CHECK5v11: } void foo() { A elems[5]; } } namespace test6 { void opaque(); struct A { ~A(); }; template struct B { B(); ~B(); int _; }; struct C : B<0>, B<1>, virtual B<2>, virtual B<3> { A x, y, z; C(); ~C(); }; C::C() { opaque(); } // CHECK5-LABEL: define void @_ZN5test61CC1Ev(%"struct.test6::C"* {{[^,]*}} %this) unnamed_addr // CHECK5: call void @_ZN5test61BILj2EEC2Ev // CHECK5: invoke void @_ZN5test61BILj3EEC2Ev // CHECK5: invoke void @_ZN5test61BILj0EEC2Ev // CHECK5: invoke void @_ZN5test61BILj1EEC2Ev // CHECK5: invoke void @_ZN5test66opaqueEv // CHECK5: ret void // FIXME: way too much EH cleanup code follows C::~C() { opaque(); } // CHECK5-LABEL: define void @_ZN5test61CD2Ev(%"struct.test6::C"* {{[^,]*}} %this, i8** %vtt) unnamed_addr // CHECK5: invoke void @_ZN5test66opaqueEv // CHECK5v03: invoke void @_ZN5test61AD1Ev // CHECK5v03: invoke void @_ZN5test61AD1Ev // CHECK5v03: invoke void @_ZN5test61AD1Ev // CHECK5v03: invoke void @_ZN5test61BILj1EED2Ev // CHECK5v11: call void @_ZN5test61AD1Ev // CHECK5v11: call void @_ZN5test61AD1Ev // CHECK5v11: call void @_ZN5test61AD1Ev // CHECK5v11: call void @_ZN5test61BILj1EED2Ev // CHECK5: call void @_ZN5test61BILj0EED2Ev // CHECK5: ret void // CHECK5v03: invoke void @_ZN5test61AD1Ev // CHECK5v03: invoke void @_ZN5test61AD1Ev // CHECK5v03: invoke void @_ZN5test61AD1Ev // CHECK5v03: invoke void @_ZN5test61BILj1EED2Ev // CHECK5v03: invoke void @_ZN5test61BILj0EED2Ev // CHECK5-LABEL: define void @_ZN5test61CD1Ev(%"struct.test6::C"* {{[^,]*}} %this) unnamed_addr // CHECK5v03: invoke void @_ZN5test61CD2Ev // CHECK5v03: invoke void @_ZN5test61BILj3EED2Ev // CHECK5v03: call void @_ZN5test61BILj2EED2Ev // CHECK5v03: ret void // CHECK5v03: invoke void @_ZN5test61BILj3EED2Ev // CHECK5v03: invoke void @_ZN5test61BILj2EED2Ev // CHECK5v11: call void @_ZN5test61CD2Ev // CHECK5v11: call void @_ZN5test61BILj3EED2Ev // CHECK5v11: call void @_ZN5test61BILj2EED2Ev // CHECK5v11: ret void } // PR 9197 namespace test7 { struct D { ~D(); }; struct A { ~A(); }; A::~A() { } struct B : public A { ~B(); D arr[1]; }; // Verify that this doesn't get emitted as an alias // CHECK5-LABEL: define void @_ZN5test71BD2Ev( // CHECK5v03: invoke void @_ZN5test71DD1Ev( // CHECK5v11: call void @_ZN5test71DD1Ev( // CHECK5: call void @_ZN5test71AD2Ev( B::~B() {} } // PR10467 namespace test8 { struct A { A(); ~A(); }; void die() __attribute__((noreturn)); void test() { A x; while (1) { A y; goto l; } l: die(); } // CHECK5-LABEL: define void @_ZN5test84testEv() // CHECK5: [[X:%.*]] = alloca [[A:%.*]], align 1 // CHECK5-NEXT: [[Y:%.*]] = alloca [[A:%.*]], align 1 // CHECK5: call void @_ZN5test81AC1Ev([[A]]* {{[^,]*}} [[X]]) // CHECK5-NEXT: br label // CHECK5: invoke void @_ZN5test81AC1Ev([[A]]* {{[^,]*}} [[Y]]) // CHECK5v03: invoke void @_ZN5test81AD1Ev([[A]]* {{[^,]*}} [[Y]]) // CHECK5v11: call void @_ZN5test81AD1Ev([[A]]* {{[^,]*}} [[Y]]) // CHECK5-NOT: switch // CHECK5: invoke void @_ZN5test83dieEv() // CHECK5: unreachable } // PR12710 namespace test9 { struct ArgType { ~ArgType(); }; template void f1(const ArgType& = ArgType()); void f2(); void bar() { f1(); f2(); } // CHECK5: call void @_ZN5test97ArgTypeD1Ev(%"struct.test9::ArgType"* {{[^,]*}} % // CHECK5: call void @_ZN5test92f2Ev() } namespace test10 { // We used to crash trying to replace _ZN6test106OptionD1Ev with // _ZN6test106OptionD2Ev twice. struct Option { virtual ~Option() {} }; template class opt : public Option {}; template class opt; // CHECK5-LABEL: define zeroext i1 @_ZN6test1016handleOccurrenceEv( bool handleOccurrence() { // CHECK5: call void @_ZN6test106OptionD2Ev( Option x; return true; } } #if __cplusplus >= 201103L namespace test11 { // Check that lifetime.end is emitted in the landing pad. // CHECK6-LABEL: define void @_ZN6test1115testLifetimeEndEi( // CHECK6: entry: // CHECK6: [[T1:%[a-z0-9]+]] = alloca %"struct.test11::S1" // CHECK6: [[T2:%[a-z0-9]+]] = alloca %"struct.test11::S1" // CHECK6: [[T3:%[a-z0-9]+]] = alloca %"struct.test11::S1" // CHECK6: {{^}}invoke.cont // CHECK6: call void @_ZN6test112S1D1Ev(%"struct.test11::S1"* {{[^,]*}} [[T1]]) // CHECK6: [[BC1:%[a-z0-9]+]] = bitcast %"struct.test11::S1"* [[T1]] to i8* // CHECK6: call void @llvm.lifetime.end.p0i8(i64 32, i8* [[BC1]]) // CHECK6: {{^}}lpad // CHECK6: call void @_ZN6test112S1D1Ev(%"struct.test11::S1"* {{[^,]*}} [[T1]]) // CHECK6: [[BC2:%[a-z0-9]+]] = bitcast %"struct.test11::S1"* [[T1]] to i8* // CHECK6: call void @llvm.lifetime.end.p0i8(i64 32, i8* [[BC2]]) // CHECK6: {{^}}invoke.cont // CHECK6: call void @_ZN6test112S1D1Ev(%"struct.test11::S1"* {{[^,]*}} [[T2]]) // CHECK6: [[BC3:%[a-z0-9]+]] = bitcast %"struct.test11::S1"* [[T2]] to i8* // CHECK6: call void @llvm.lifetime.end.p0i8(i64 32, i8* [[BC3]]) // CHECK6: {{^}}lpad // CHECK6: call void @_ZN6test112S1D1Ev(%"struct.test11::S1"* {{[^,]*}} [[T2]]) // CHECK6: [[BC4:%[a-z0-9]+]] = bitcast %"struct.test11::S1"* [[T2]] to i8* // CHECK6: call void @llvm.lifetime.end.p0i8(i64 32, i8* [[BC4]]) // CHECK6: {{^}}invoke.cont // CHECK6: call void @_ZN6test112S1D1Ev(%"struct.test11::S1"* {{[^,]*}} [[T3]]) // CHECK6: [[BC5:%[a-z0-9]+]] = bitcast %"struct.test11::S1"* [[T3]] to i8* // CHECK6: call void @llvm.lifetime.end.p0i8(i64 32, i8* [[BC5]]) // CHECK6: {{^}}lpad // CHECK6: call void @_ZN6test112S1D1Ev(%"struct.test11::S1"* {{[^,]*}} [[T3]]) // CHECK6: [[BC6:%[a-z0-9]+]] = bitcast %"struct.test11::S1"* [[T3]] to i8* // CHECK6: call void @llvm.lifetime.end.p0i8(i64 32, i8* [[BC6]]) struct S1 { ~S1(); int a[8]; }; void func1(S1 &) noexcept(false); void testLifetimeEnd(int n) { if (n < 10) { S1 t1; func1(t1); } else if (n < 100) { S1 t2; func1(t2); } else if (n < 1000) { S1 t3; func1(t3); } } } #endif