424 lines
12 KiB
C++
424 lines
12 KiB
C++
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// RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -emit-llvm -o - -mconstructor-aliases -fcxx-exceptions -fexceptions -O1 -disable-llvm-optzns | FileCheck %s
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// CHECK-DAG: @_ZN5test01AD1Ev = alias {{.*}} @_ZN5test01AD2Ev
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// CHECK-DAG: @_ZN5test11MD2Ev = alias {{.*}} @_ZN5test11AD2Ev
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// CHECK-DAG: @_ZN5test11ND2Ev = alias {{.*}} @_ZN5test11AD2Ev
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// CHECK-DAG: @_ZN5test11OD2Ev = alias {{.*}} @_ZN5test11AD2Ev
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// CHECK-DAG: @_ZN5test11SD2Ev = alias bitcast {{.*}} @_ZN5test11AD2Ev
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struct A {
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int a;
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~A();
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};
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// Base with non-trivial destructor
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struct B : A {
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~B();
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};
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B::~B() { }
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// Field with non-trivial destructor
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struct C {
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A a;
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~C();
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};
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C::~C() { }
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namespace PR7526 {
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extern void foo();
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struct allocator {
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~allocator() throw();
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};
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struct allocator_derived : allocator { };
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// CHECK-LABEL: define void @_ZN6PR75263fooEv()
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// CHECK: call void {{.*}} @_ZN6PR75269allocatorD2Ev
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// CHECK-LABEL: define void @_ZN6PR75269allocatorD2Ev(%"struct.PR7526::allocator"* %this) unnamed_addr
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// CHECK: call void @__cxa_call_unexpected
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allocator::~allocator() throw() { foo(); }
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void foo() {
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allocator_derived ad;
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}
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}
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// PR5084
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template<typename T>
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class A1 {
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~A1();
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};
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template<> A1<char>::~A1();
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// PR5529
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namespace PR5529 {
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struct A {
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~A();
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};
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A::~A() { }
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struct B : A {
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virtual ~B();
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};
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B::~B() {}
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}
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// FIXME: there's a known problem in the codegen here where, if one
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// destructor throws, the remaining destructors aren't run. Fix it,
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// then make this code check for it.
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namespace test0 {
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void foo();
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struct VBase { ~VBase(); };
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struct Base { ~Base(); };
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struct Member { ~Member(); };
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struct A : Base {
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Member M;
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~A();
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};
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// The function-try-block won't suppress -mconstructor-aliases here.
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A::~A() try { } catch (int i) {}
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// complete destructor alias tested above
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// CHECK-LABEL: define void @_ZN5test01AD2Ev(%"struct.test0::A"* %this) unnamed_addr
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// CHECK: invoke void @_ZN5test06MemberD1Ev
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// CHECK: unwind label [[MEM_UNWIND:%[a-zA-Z0-9.]+]]
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// CHECK: invoke void @_ZN5test04BaseD2Ev
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// CHECK: unwind label [[BASE_UNWIND:%[a-zA-Z0-9.]+]]
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struct B : Base, virtual VBase {
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Member M;
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~B();
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};
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B::~B() try { } catch (int i) {}
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// It will suppress the delegation optimization here, though.
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// CHECK-LABEL: define void @_ZN5test01BD1Ev(%"struct.test0::B"* %this) unnamed_addr
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// CHECK: invoke void @_ZN5test06MemberD1Ev
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// CHECK: unwind label [[MEM_UNWIND:%[a-zA-Z0-9.]+]]
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// CHECK: invoke void @_ZN5test04BaseD2Ev
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// CHECK: unwind label [[BASE_UNWIND:%[a-zA-Z0-9.]+]]
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// CHECK: invoke void @_ZN5test05VBaseD2Ev
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// CHECK: unwind label [[VBASE_UNWIND:%[a-zA-Z0-9.]+]]
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// CHECK-LABEL: define void @_ZN5test01BD2Ev(%"struct.test0::B"* %this, i8** %vtt) unnamed_addr
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// CHECK: invoke void @_ZN5test06MemberD1Ev
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// CHECK: unwind label [[MEM_UNWIND:%[a-zA-Z0-9.]+]]
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// CHECK: invoke void @_ZN5test04BaseD2Ev
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// CHECK: unwind label [[BASE_UNWIND:%[a-zA-Z0-9.]+]]
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}
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// Test base-class aliasing.
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namespace test1 {
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struct A { ~A(); char ***m; }; // non-trivial destructor
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struct B { ~B(); }; // non-trivial destructor
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struct Empty { }; // trivial destructor, empty
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struct NonEmpty { int x; }; // trivial destructor, non-empty
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// There must be a definition in this translation unit for the alias
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// optimization to apply.
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A::~A() { delete m; }
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struct M : A { ~M(); };
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M::~M() {} // alias tested above
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struct N : A, Empty { ~N(); };
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N::~N() {} // alias tested above
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struct O : Empty, A { ~O(); };
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O::~O() {} // alias tested above
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struct P : NonEmpty, A { ~P(); };
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P::~P() {} // CHECK-LABEL: define void @_ZN5test11PD2Ev(%"struct.test1::P"* %this) unnamed_addr
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struct Q : A, B { ~Q(); };
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Q::~Q() {} // CHECK-LABEL: define void @_ZN5test11QD2Ev(%"struct.test1::Q"* %this) unnamed_addr
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struct R : A { ~R(); };
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R::~R() { A a; } // CHECK-LABEL: define void @_ZN5test11RD2Ev(%"struct.test1::R"* %this) unnamed_addr
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struct S : A { ~S(); int x; };
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S::~S() {} // alias tested above
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struct T : A { ~T(); B x; };
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T::~T() {} // CHECK-LABEL: define void @_ZN5test11TD2Ev(%"struct.test1::T"* %this) unnamed_addr
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// The VTT parameter prevents this. We could still make this work
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// for calling conventions that are safe against extra parameters.
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struct U : A, virtual B { ~U(); };
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U::~U() {} // CHECK-LABEL: define void @_ZN5test11UD2Ev(%"struct.test1::U"* %this, i8** %vtt) unnamed_addr
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}
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// PR6471
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namespace test2 {
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struct A { ~A(); char ***m; };
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struct B : A { ~B(); };
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B::~B() {}
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// CHECK-LABEL: define void @_ZN5test21BD2Ev(%"struct.test2::B"* %this) unnamed_addr
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// CHECK: call void @_ZN5test21AD2Ev
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}
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// PR7142
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namespace test3 {
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struct A { virtual ~A(); };
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struct B { virtual ~B(); };
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namespace { // internal linkage => deferred
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struct C : A, B {}; // ~B() in D requires a this-adjustment thunk
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struct D : C {}; // D::~D() is an alias to C::~C()
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}
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void test() {
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new D; // Force emission of D's vtable
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}
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}
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namespace test4 {
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struct A { ~A(); };
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// CHECK-LABEL: define void @_ZN5test43fooEv()
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// CHECK: call void @_ZN5test41AD1Ev
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// CHECK: ret void
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void foo() {
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{
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A a;
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goto failure;
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}
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failure:
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return;
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}
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// CHECK-LABEL: define void @_ZN5test43barEi(
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// CHECK: [[X:%.*]] = alloca i32
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// CHECK-NEXT: [[A:%.*]] = alloca
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// CHECK: br label
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// CHECK: [[TMP:%.*]] = load i32* [[X]]
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// CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[TMP]], 0
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// CHECK-NEXT: br i1
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// CHECK: call void @_ZN5test41AD1Ev(
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// CHECK: br label
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// CHECK: [[TMP:%.*]] = load i32* [[X]]
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// CHECK: [[TMP2:%.*]] = add nsw i32 [[TMP]], -1
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// CHECK: store i32 [[TMP2]], i32* [[X]]
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// CHECK: br label
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// CHECK: ret void
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void bar(int x) {
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for (A a; x; ) {
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x--;
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}
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}
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}
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// PR7575
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namespace test5 {
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struct A { ~A(); };
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// CHECK-LABEL: define void @_ZN5test53fooEv()
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// CHECK: [[ELEMS:%.*]] = alloca [5 x [[A:%.*]]], align
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// CHECK-NEXT: [[EXN:%.*]] = alloca i8*
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// CHECK-NEXT: [[SEL:%.*]] = alloca i32
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// CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [5 x [[A]]]* [[ELEMS]], i32 0, i32 0
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// CHECK-NEXT: [[END:%.*]] = getelementptr inbounds [[A]]* [[BEGIN]], i64 5
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// CHECK-NEXT: br label
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// CHECK: [[POST:%.*]] = phi [[A]]* [ [[END]], {{%.*}} ], [ [[ELT:%.*]], {{%.*}} ]
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// CHECK-NEXT: [[ELT]] = getelementptr inbounds [[A]]* [[POST]], i64 -1
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// CHECK-NEXT: invoke void @_ZN5test51AD1Ev([[A]]* [[ELT]])
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// CHECK: [[T0:%.*]] = icmp eq [[A]]* [[ELT]], [[BEGIN]]
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// CHECK-NEXT: br i1 [[T0]],
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// CHECK: ret void
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// lpad
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// CHECK: [[EMPTY:%.*]] = icmp eq [[A]]* [[BEGIN]], [[ELT]]
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// CHECK-NEXT: br i1 [[EMPTY]]
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// CHECK: [[AFTER:%.*]] = phi [[A]]* [ [[ELT]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ]
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// CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds [[A]]* [[AFTER]], i64 -1
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// CHECK-NEXT: invoke void @_ZN5test51AD1Ev([[A]]* [[CUR]])
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// CHECK: [[DONE:%.*]] = icmp eq [[A]]* [[CUR]], [[BEGIN]]
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// CHECK-NEXT: br i1 [[DONE]],
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void foo() {
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A elems[5];
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}
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}
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namespace test6 {
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void opaque();
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struct A { ~A(); };
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template <unsigned> struct B { B(); ~B(); int _; };
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struct C : B<0>, B<1>, virtual B<2>, virtual B<3> {
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A x, y, z;
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C();
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~C();
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};
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C::C() { opaque(); }
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// CHECK-LABEL: define void @_ZN5test61CC1Ev(%"struct.test6::C"* %this) unnamed_addr
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// CHECK: call void @_ZN5test61BILj2EEC2Ev
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// CHECK: invoke void @_ZN5test61BILj3EEC2Ev
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// CHECK: invoke void @_ZN5test61BILj0EEC2Ev
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// CHECK: invoke void @_ZN5test61BILj1EEC2Ev
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// CHECK: invoke void @_ZN5test66opaqueEv
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// CHECK: ret void
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// FIXME: way too much EH cleanup code follows
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C::~C() { opaque(); }
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// CHECK-LABEL: define void @_ZN5test61CD1Ev(%"struct.test6::C"* %this) unnamed_addr
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// CHECK: invoke void @_ZN5test61CD2Ev
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// CHECK: invoke void @_ZN5test61BILj3EED2Ev
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// CHECK: call void @_ZN5test61BILj2EED2Ev
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// CHECK: ret void
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// CHECK: invoke void @_ZN5test61BILj3EED2Ev
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// CHECK: invoke void @_ZN5test61BILj2EED2Ev
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// CHECK-LABEL: define void @_ZN5test61CD2Ev(%"struct.test6::C"* %this, i8** %vtt) unnamed_addr
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// CHECK: invoke void @_ZN5test66opaqueEv
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// CHECK: invoke void @_ZN5test61AD1Ev
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// CHECK: invoke void @_ZN5test61AD1Ev
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// CHECK: invoke void @_ZN5test61AD1Ev
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// CHECK: invoke void @_ZN5test61BILj1EED2Ev
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// CHECK: call void @_ZN5test61BILj0EED2Ev
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// CHECK: ret void
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// CHECK: invoke void @_ZN5test61AD1Ev
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// CHECK: invoke void @_ZN5test61AD1Ev
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// CHECK: invoke void @_ZN5test61AD1Ev
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// CHECK: invoke void @_ZN5test61BILj1EED2Ev
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// CHECK: invoke void @_ZN5test61BILj0EED2Ev
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}
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// PR 9197
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namespace test7 {
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struct D { ~D(); };
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struct A { ~A(); };
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A::~A() { }
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struct B : public A {
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~B();
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D arr[1];
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};
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// Verify that this doesn't get emitted as an alias
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// CHECK-LABEL: define void @_ZN5test71BD2Ev(
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// CHECK: invoke void @_ZN5test71DD1Ev(
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// CHECK: call void @_ZN5test71AD2Ev(
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B::~B() {}
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}
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// PR10467
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namespace test8 {
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struct A { A(); ~A(); };
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void die() __attribute__((noreturn));
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void test() {
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A x;
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while (1) {
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A y;
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goto l;
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}
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l: die();
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}
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// CHECK-LABEL: define void @_ZN5test84testEv()
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// CHECK: [[X:%.*]] = alloca [[A:%.*]], align 1
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// CHECK-NEXT: [[Y:%.*]] = alloca [[A:%.*]], align 1
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// CHECK: call void @_ZN5test81AC1Ev([[A]]* [[X]])
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// CHECK-NEXT: br label
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// CHECK: invoke void @_ZN5test81AC1Ev([[A]]* [[Y]])
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// CHECK: invoke void @_ZN5test81AD1Ev([[A]]* [[Y]])
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// CHECK-NOT: switch
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// CHECK: invoke void @_ZN5test83dieEv()
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// CHECK: unreachable
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}
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// PR12710
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namespace test9 {
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struct ArgType {
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~ArgType();
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};
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template<typename T>
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void f1(const ArgType& = ArgType());
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void f2();
|
||
|
|
void bar() {
|
||
|
|
f1<int>();
|
||
|
|
f2();
|
||
|
|
}
|
||
|
|
// CHECK: call void @_ZN5test97ArgTypeD1Ev(%"struct.test9::ArgType"* %
|
||
|
|
// CHECK: call void @_ZN5test92f2Ev()
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace test10 {
|
||
|
|
// We used to crash trying to replace _ZN6test106OptionD1Ev with
|
||
|
|
// _ZN6test106OptionD2Ev twice.
|
||
|
|
struct Option {
|
||
|
|
virtual ~Option() {}
|
||
|
|
};
|
||
|
|
template <class DataType> class opt : public Option {};
|
||
|
|
template class opt<int>;
|
||
|
|
// CHECK-LABEL: define zeroext i1 @_ZN6test1016handleOccurrenceEv(
|
||
|
|
bool handleOccurrence() {
|
||
|
|
// CHECK: call void @_ZN6test106OptionD2Ev(
|
||
|
|
Option x;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// 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_11CD2Ev
|
||
|
|
// 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 }
|
||
|
|
|
||
|
|
// CHECK-LABEL: define internal void @_ZThn8_N5test312_GLOBAL__N_11DD1Ev(
|
||
|
|
// CHECK: getelementptr inbounds i8* {{.*}}, i64 -8
|
||
|
|
// CHECK: call void {{.*}} @_ZN5test312_GLOBAL__N_11CD2Ev
|
||
|
|
// 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 @_ZThn8_N5test312_GLOBAL__N_11CD1Ev(
|
||
|
|
// CHECK: getelementptr inbounds i8* {{.*}}, i64 -8
|
||
|
|
// CHECK: call void @_ZN5test312_GLOBAL__N_11CD2Ev(
|
||
|
|
// 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_11CD2Ev(
|
||
|
|
// 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_11CD0Ev(
|
||
|
|
// CHECK: getelementptr inbounds i8* {{.*}}, i64 -8
|
||
|
|
// CHECK: call void @_ZN5test312_GLOBAL__N_11CD0Ev(
|
||
|
|
// CHECK: ret void
|
||
|
|
|
||
|
|
// CHECK: attributes [[NUW]] = {{[{].*}} nounwind {{.*[}]}}
|