| // RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -emit-llvm -o - -mconstructor-aliases -fcxx-exceptions -fexceptions | FileCheck %s |
| |
| // CHECK: @_ZN5test01AD1Ev = alias {{.*}} @_ZN5test01AD2Ev |
| // CHECK: @_ZN5test11MD2Ev = alias {{.*}} @_ZN5test11AD2Ev |
| // CHECK: @_ZN5test11ND2Ev = alias {{.*}} @_ZN5test11AD2Ev |
| // CHECK: @_ZN5test11OD2Ev = alias {{.*}} @_ZN5test11AD2Ev |
| // CHECK: @_ZN5test11SD2Ev = alias bitcast {{.*}} @_ZN5test11AD2Ev |
| |
| // CHECK: @_ZN5test312_GLOBAL__N_11DD1Ev = alias internal {{.*}} @_ZN5test312_GLOBAL__N_11DD2Ev |
| // CHECK: @_ZN5test312_GLOBAL__N_11DD2Ev = alias internal bitcast {{.*}} @_ZN5test312_GLOBAL__N_11CD2Ev |
| // CHECK: @_ZN5test312_GLOBAL__N_11CD1Ev = alias internal {{.*}} @_ZN5test312_GLOBAL__N_11CD2Ev |
| |
| 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 { }; |
| |
| // CHECK-LABEL: define void @_ZN6PR75269allocatorD2Ev(%"struct.PR7526::allocator"* %this) unnamed_addr |
| // CHECK: call void @__cxa_call_unexpected |
| allocator::~allocator() throw() { foo(); } |
| |
| // CHECK-LABEL: define linkonce_odr void @_ZN6PR752617allocator_derivedD1Ev(%"struct.PR7526::allocator_derived"* %this) unnamed_addr |
| // CHECK-NOT: call void @__cxa_call_unexpected |
| // CHECK: } |
| void foo() { |
| allocator_derived ad; |
| } |
| } |
| |
| // PR5084 |
| template<typename T> |
| class A1 { |
| ~A1(); |
| }; |
| |
| template<> A1<char>::~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 |
| |
| // CHECK-LABEL: define void @_ZN5test01AD2Ev(%"struct.test0::A"* %this) unnamed_addr |
| // CHECK: invoke void @_ZN5test06MemberD1Ev |
| // CHECK: unwind label [[MEM_UNWIND:%[a-zA-Z0-9.]+]] |
| // CHECK: invoke void @_ZN5test04BaseD2Ev |
| // CHECK: unwind label [[BASE_UNWIND:%[a-zA-Z0-9.]+]] |
| |
| struct B : Base, virtual VBase { |
| Member M; |
| ~B(); |
| }; |
| B::~B() try { } catch (int i) {} |
| // It will suppress the delegation optimization here, though. |
| |
| // CHECK-LABEL: define void @_ZN5test01BD1Ev(%"struct.test0::B"* %this) unnamed_addr |
| // CHECK: invoke void @_ZN5test06MemberD1Ev |
| // CHECK: unwind label [[MEM_UNWIND:%[a-zA-Z0-9.]+]] |
| // CHECK: invoke void @_ZN5test04BaseD2Ev |
| // CHECK: unwind label [[BASE_UNWIND:%[a-zA-Z0-9.]+]] |
| // CHECK: invoke void @_ZN5test05VBaseD2Ev |
| // CHECK: unwind label [[VBASE_UNWIND:%[a-zA-Z0-9.]+]] |
| |
| // CHECK-LABEL: define void @_ZN5test01BD2Ev(%"struct.test0::B"* %this, i8** %vtt) unnamed_addr |
| // CHECK: invoke void @_ZN5test06MemberD1Ev |
| // CHECK: unwind label [[MEM_UNWIND:%[a-zA-Z0-9.]+]] |
| // CHECK: invoke void @_ZN5test04BaseD2Ev |
| // CHECK: unwind label [[BASE_UNWIND:%[a-zA-Z0-9.]+]] |
| } |
| |
| // 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() {} // alias tested above |
| |
| struct N : A, Empty { ~N(); }; |
| N::~N() {} // alias tested above |
| |
| struct O : Empty, A { ~O(); }; |
| O::~O() {} // alias tested above |
| |
| struct P : NonEmpty, A { ~P(); }; |
| P::~P() {} // CHECK-LABEL: define void @_ZN5test11PD2Ev(%"struct.test1::P"* %this) unnamed_addr |
| |
| struct Q : A, B { ~Q(); }; |
| Q::~Q() {} // CHECK-LABEL: define void @_ZN5test11QD2Ev(%"struct.test1::Q"* %this) unnamed_addr |
| |
| struct R : A { ~R(); }; |
| R::~R() { A a; } // CHECK-LABEL: define void @_ZN5test11RD2Ev(%"struct.test1::R"* %this) unnamed_addr |
| |
| struct S : A { ~S(); int x; }; |
| S::~S() {} // alias tested above |
| |
| struct T : A { ~T(); B x; }; |
| T::~T() {} // CHECK-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() {} // CHECK-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() {} |
| // CHECK-LABEL: define void @_ZN5test21BD2Ev(%"struct.test2::B"* %this) unnamed_addr |
| // CHECK: 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 |
| } |
| |
| // Checked at top of file: |
| // @_ZN5test312_GLOBAL__N_11CD1Ev = alias internal {{.*}} @_ZN5test312_GLOBAL__N_11CD2Ev |
| |
| // More checks at end of file. |
| |
| } |
| |
| namespace test4 { |
| struct A { ~A(); }; |
| |
| // CHECK-LABEL: define void @_ZN5test43fooEv() |
| // CHECK: call void @_ZN5test41AD1Ev |
| // CHECK: ret void |
| void foo() { |
| { |
| A a; |
| goto failure; |
| } |
| |
| failure: |
| return; |
| } |
| |
| // CHECK-LABEL: define void @_ZN5test43barEi( |
| // CHECK: [[X:%.*]] = alloca i32 |
| // CHECK-NEXT: [[A:%.*]] = alloca |
| // CHECK: br label |
| // CHECK: [[TMP:%.*]] = load i32* [[X]] |
| // CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[TMP]], 0 |
| // CHECK-NEXT: br i1 |
| // CHECK: call void @_ZN5test41AD1Ev( |
| // CHECK: br label |
| // CHECK: [[TMP:%.*]] = load i32* [[X]] |
| // CHECK: [[TMP2:%.*]] = add nsw i32 [[TMP]], -1 |
| // CHECK: store i32 [[TMP2]], i32* [[X]] |
| // CHECK: br label |
| // CHECK: ret void |
| void bar(int x) { |
| for (A a; x; ) { |
| x--; |
| } |
| } |
| } |
| |
| // PR7575 |
| namespace test5 { |
| struct A { ~A(); }; |
| |
| // CHECK-LABEL: define void @_ZN5test53fooEv() |
| // CHECK: [[ELEMS:%.*]] = alloca [5 x [[A:%.*]]], align |
| // CHECK-NEXT: [[EXN:%.*]] = alloca i8* |
| // CHECK-NEXT: [[SEL:%.*]] = alloca i32 |
| // CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [5 x [[A]]]* [[ELEMS]], i32 0, i32 0 |
| // CHECK-NEXT: [[END:%.*]] = getelementptr inbounds [[A]]* [[BEGIN]], i64 5 |
| // CHECK-NEXT: br label |
| // CHECK: [[POST:%.*]] = phi [[A]]* [ [[END]], {{%.*}} ], [ [[ELT:%.*]], {{%.*}} ] |
| // CHECK-NEXT: [[ELT]] = getelementptr inbounds [[A]]* [[POST]], i64 -1 |
| // CHECK-NEXT: invoke void @_ZN5test51AD1Ev([[A]]* [[ELT]]) |
| // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[ELT]], [[BEGIN]] |
| // CHECK-NEXT: br i1 [[T0]], |
| // CHECK: ret void |
| // lpad |
| // CHECK: [[EMPTY:%.*]] = icmp eq [[A]]* [[BEGIN]], [[ELT]] |
| // CHECK-NEXT: br i1 [[EMPTY]] |
| // CHECK: [[AFTER:%.*]] = phi [[A]]* [ [[ELT]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ] |
| // CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds [[A]]* [[AFTER]], i64 -1 |
| // CHECK-NEXT: invoke void @_ZN5test51AD1Ev([[A]]* [[CUR]]) |
| // CHECK: [[DONE:%.*]] = icmp eq [[A]]* [[CUR]], [[BEGIN]] |
| // CHECK-NEXT: br i1 [[DONE]], |
| void foo() { |
| A elems[5]; |
| } |
| } |
| |
| namespace test6 { |
| void opaque(); |
| |
| struct A { ~A(); }; |
| template <unsigned> 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(); } |
| // CHECK-LABEL: define void @_ZN5test61CC1Ev(%"struct.test6::C"* %this) unnamed_addr |
| // CHECK: call void @_ZN5test61BILj2EEC2Ev |
| // CHECK: invoke void @_ZN5test61BILj3EEC2Ev |
| // CHECK: invoke void @_ZN5test61BILj0EEC2Ev |
| // CHECK: invoke void @_ZN5test61BILj1EEC2Ev |
| // CHECK: invoke void @_ZN5test66opaqueEv |
| // CHECK: ret void |
| // FIXME: way too much EH cleanup code follows |
| |
| C::~C() { opaque(); } |
| // CHECK-LABEL: define void @_ZN5test61CD1Ev(%"struct.test6::C"* %this) unnamed_addr |
| // CHECK: invoke void @_ZN5test61CD2Ev |
| // CHECK: invoke void @_ZN5test61BILj3EED2Ev |
| // CHECK: call void @_ZN5test61BILj2EED2Ev |
| // CHECK: ret void |
| // CHECK: invoke void @_ZN5test61BILj3EED2Ev |
| // CHECK: invoke void @_ZN5test61BILj2EED2Ev |
| |
| // CHECK-LABEL: define void @_ZN5test61CD2Ev(%"struct.test6::C"* %this, i8** %vtt) unnamed_addr |
| // CHECK: invoke void @_ZN5test66opaqueEv |
| // CHECK: invoke void @_ZN5test61AD1Ev |
| // CHECK: invoke void @_ZN5test61AD1Ev |
| // CHECK: invoke void @_ZN5test61AD1Ev |
| // CHECK: invoke void @_ZN5test61BILj1EED2Ev |
| // CHECK: call void @_ZN5test61BILj0EED2Ev |
| // CHECK: ret void |
| // CHECK: invoke void @_ZN5test61AD1Ev |
| // CHECK: invoke void @_ZN5test61AD1Ev |
| // CHECK: invoke void @_ZN5test61AD1Ev |
| // CHECK: invoke void @_ZN5test61BILj1EED2Ev |
| // CHECK: invoke void @_ZN5test61BILj0EED2Ev |
| } |
| |
| // 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 |
| // CHECK-LABEL: define void @_ZN5test71BD2Ev( |
| // CHECK: invoke void @_ZN5test71DD1Ev( |
| // CHECK: 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(); |
| } |
| |
| // CHECK-LABEL: define void @_ZN5test84testEv() |
| // CHECK: [[X:%.*]] = alloca [[A:%.*]], align 1 |
| // CHECK-NEXT: [[Y:%.*]] = alloca [[A:%.*]], align 1 |
| // CHECK: call void @_ZN5test81AC1Ev([[A]]* [[X]]) |
| // CHECK-NEXT: br label |
| // CHECK: invoke void @_ZN5test81AC1Ev([[A]]* [[Y]]) |
| // CHECK: invoke void @_ZN5test81AD1Ev([[A]]* [[Y]]) |
| // CHECK-NOT: switch |
| // CHECK: invoke void @_ZN5test83dieEv() |
| // CHECK: unreachable |
| } |
| |
| // PR12710 |
| namespace test9 { |
| struct ArgType { |
| ~ArgType(); |
| }; |
| template<typename T> |
| void f1(const ArgType& = ArgType()); |
| void f2(); |
| void bar() { |
| f1<int>(); |
| f2(); |
| } |
| // CHECK: call void @_ZN5test97ArgTypeD1Ev(%"struct.test9::ArgType"* % |
| // CHECK: call void @_ZN5test92f2Ev() |
| } |
| |
| // Checks from test3: |
| |
| // CHECK-LABEL: define internal void @_ZN5test312_GLOBAL__N_11DD0Ev(%"struct.test3::<anonymous namespace>::D"* %this) unnamed_addr |
| // CHECK: invoke void @_ZN5test312_GLOBAL__N_11DD1Ev( |
| // CHECK: call void @_ZdlPv({{.*}}) [[NUW:#[0-9]+]] |
| // CHECK: ret void |
| // CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) |
| // CHECK-NEXT: cleanup |
| // CHECK: call void @_ZdlPv({{.*}}) [[NUW]] |
| // CHECK: resume { i8*, i32 } |
| |
| // Checked at top of file: |
| // @_ZN5test312_GLOBAL__N_11DD1Ev = alias internal {{.*}} @_ZN5test312_GLOBAL__N_11DD2Ev |
| // @_ZN5test312_GLOBAL__N_11DD2Ev = alias internal bitcast {{.*}} @_ZN5test312_GLOBAL__N_11CD2Ev |
| |
| // CHECK-LABEL: define internal void @_ZThn8_N5test312_GLOBAL__N_11DD1Ev( |
| // CHECK: getelementptr inbounds i8* {{.*}}, i64 -8 |
| // CHECK: call void @_ZN5test312_GLOBAL__N_11DD1Ev( |
| // CHECK: ret void |
| |
| // CHECK-LABEL: define internal void @_ZThn8_N5test312_GLOBAL__N_11DD0Ev( |
| // CHECK: getelementptr inbounds i8* {{.*}}, i64 -8 |
| // CHECK: call void @_ZN5test312_GLOBAL__N_11DD0Ev( |
| // CHECK: ret void |
| |
| // CHECK-LABEL: define internal void @_ZN5test312_GLOBAL__N_11CD2Ev(%"struct.test3::<anonymous namespace>::C"* %this) unnamed_addr |
| // CHECK: invoke void @_ZN5test31BD2Ev( |
| // CHECK: call void @_ZN5test31AD2Ev( |
| // CHECK: ret void |
| |
| // CHECK: declare void @_ZN5test31BD2Ev( |
| // CHECK: declare void @_ZN5test31AD2Ev( |
| |
| // CHECK-LABEL: define internal void @_ZN5test312_GLOBAL__N_11CD0Ev(%"struct.test3::<anonymous namespace>::C"* %this) unnamed_addr |
| // CHECK: invoke void @_ZN5test312_GLOBAL__N_11CD1Ev( |
| // CHECK: call void @_ZdlPv({{.*}}) [[NUW]] |
| // CHECK: ret void |
| // CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) |
| // CHECK-NEXT: cleanup |
| // CHECK: call void @_ZdlPv({{.*}}) [[NUW]] |
| // CHECK: resume { i8*, i32 } |
| |
| // CHECK-LABEL: define internal void @_ZThn8_N5test312_GLOBAL__N_11CD1Ev( |
| // CHECK: getelementptr inbounds i8* {{.*}}, i64 -8 |
| // CHECK: call void @_ZN5test312_GLOBAL__N_11CD1Ev( |
| // CHECK: ret void |
| |
| // CHECK-LABEL: define internal void @_ZThn8_N5test312_GLOBAL__N_11CD0Ev( |
| // CHECK: getelementptr inbounds i8* {{.*}}, i64 -8 |
| // CHECK: call void @_ZN5test312_GLOBAL__N_11CD0Ev( |
| // CHECK: ret void |
| |
| // CHECK: attributes [[NUW]] = {{[{].*}} nounwind {{.*[}]}} |