1 //RUN: %clang_cc1 %s -emit-llvm -o - -triple=i686-unknown-linux | FileCheck --check-prefix=CHECKGEN %s 2 //RUN: %clang_cc1 %s -emit-llvm -o - -triple=thumbv7-apple-ios6.0 -target-abi apcs-gnu | FileCheck --check-prefix=CHECKARM %s 3 //RUN: %clang_cc1 %s -emit-llvm -o - -triple=thumbv7-apple-ios5.0 -target-abi apcs-gnu | FileCheck --check-prefix=CHECKIOS5 %s 4 //RUN: %clang_cc1 %s -emit-llvm -o - -triple=i386-pc-win32 -fno-rtti | FileCheck --check-prefix=CHECKMS %s 5 // FIXME: these tests crash on the bots when run with -triple=x86_64-pc-win32 6 7 // Make sure we attach the 'returned' attribute to the 'this' parameter of 8 // constructors and destructors which return this (and only these cases) 9 10 class A { 11 public: 12 A(); 13 ~A(); 14 15 private: 16 int x_; 17 }; 18 19 class B : public A { 20 public: 21 B(int *i); 22 ~B(); 23 24 private: 25 int *i_; 26 }; 27 28 B::B(int *i) : i_(i) { } 29 B::~B() { } 30 31 // CHECKGEN-LABEL: define void @_ZN1BC2EPi(%class.B* %this, i32* %i) 32 // CHECKGEN-LABEL: define void @_ZN1BC1EPi(%class.B* %this, i32* %i) 33 // CHECKGEN-LABEL: define void @_ZN1BD2Ev(%class.B* %this) 34 // CHECKGEN-LABEL: define void @_ZN1BD1Ev(%class.B* %this) 35 36 // CHECKARM-LABEL: define %class.B* @_ZN1BC2EPi(%class.B* returned %this, i32* %i) 37 // CHECKARM-LABEL: define %class.B* @_ZN1BC1EPi(%class.B* returned %this, i32* %i) 38 // CHECKARM-LABEL: define %class.B* @_ZN1BD2Ev(%class.B* returned %this) 39 // CHECKARM-LABEL: define %class.B* @_ZN1BD1Ev(%class.B* returned %this) 40 41 // CHECKIOS5-LABEL: define %class.B* @_ZN1BC2EPi(%class.B* %this, i32* %i) 42 // CHECKIOS5-LABEL: define %class.B* @_ZN1BC1EPi(%class.B* %this, i32* %i) 43 // CHECKIOS5-LABEL: define %class.B* @_ZN1BD2Ev(%class.B* %this) 44 // CHECKIOS5-LABEL: define %class.B* @_ZN1BD1Ev(%class.B* %this) 45 46 // CHECKMS-LABEL: define x86_thiscallcc %class.B* @"\01??0B@@QAE@PAH@Z"(%class.B* returned %this, i32* %i) 47 // CHECKMS-LABEL: define x86_thiscallcc void @"\01??1B@@QAE@XZ"(%class.B* %this) 48 49 class C : public A, public B { 50 public: 51 C(int *i, char *c); 52 virtual ~C(); 53 private: 54 char *c_; 55 }; 56 57 C::C(int *i, char *c) : B(i), c_(c) { } 58 C::~C() { } 59 60 // CHECKGEN-LABEL: define void @_ZN1CC2EPiPc(%class.C* %this, i32* %i, i8* %c) 61 // CHECKGEN-LABEL: define void @_ZN1CC1EPiPc(%class.C* %this, i32* %i, i8* %c) 62 // CHECKGEN-LABEL: define void @_ZN1CD2Ev(%class.C* %this) 63 // CHECKGEN-LABEL: define void @_ZN1CD1Ev(%class.C* %this) 64 // CHECKGEN-LABEL: define void @_ZN1CD0Ev(%class.C* %this) 65 66 // CHECKARM-LABEL: define %class.C* @_ZN1CC2EPiPc(%class.C* returned %this, i32* %i, i8* %c) 67 // CHECKARM-LABEL: define %class.C* @_ZN1CC1EPiPc(%class.C* returned %this, i32* %i, i8* %c) 68 // CHECKARM-LABEL: define %class.C* @_ZN1CD2Ev(%class.C* returned %this) 69 // CHECKARM-LABEL: define %class.C* @_ZN1CD1Ev(%class.C* returned %this) 70 // CHECKARM-LABEL: define void @_ZN1CD0Ev(%class.C* %this) 71 72 // CHECKIOS5-LABEL: define %class.C* @_ZN1CC2EPiPc(%class.C* %this, i32* %i, i8* %c) 73 // CHECKIOS5-LABEL: define %class.C* @_ZN1CC1EPiPc(%class.C* %this, i32* %i, i8* %c) 74 // CHECKIOS5-LABEL: define %class.C* @_ZN1CD2Ev(%class.C* %this) 75 // CHECKIOS5-LABEL: define %class.C* @_ZN1CD1Ev(%class.C* %this) 76 // CHECKIOS5-LABEL: define void @_ZN1CD0Ev(%class.C* %this) 77 78 // CHECKMS-LABEL: define x86_thiscallcc %class.C* @"\01??0C@@QAE@PAHPAD@Z"(%class.C* returned %this, i32* %i, i8* %c) 79 // CHECKMS-LABEL: define x86_thiscallcc void @"\01??1C@@UAE@XZ"(%class.C* %this) 80 81 class D : public virtual A { 82 public: 83 D(); 84 ~D(); 85 }; 86 87 D::D() { } 88 D::~D() { } 89 90 // CHECKGEN-LABEL: define void @_ZN1DC2Ev(%class.D* %this, i8** %vtt) 91 // CHECKGEN-LABEL: define void @_ZN1DC1Ev(%class.D* %this) 92 // CHECKGEN-LABEL: define void @_ZN1DD2Ev(%class.D* %this, i8** %vtt) 93 // CHECKGEN-LABEL: define void @_ZN1DD1Ev(%class.D* %this) 94 95 // CHECKARM-LABEL: define %class.D* @_ZN1DC2Ev(%class.D* returned %this, i8** %vtt) 96 // CHECKARM-LABEL: define %class.D* @_ZN1DC1Ev(%class.D* returned %this) 97 // CHECKARM-LABEL: define %class.D* @_ZN1DD2Ev(%class.D* returned %this, i8** %vtt) 98 // CHECKARM-LABEL: define %class.D* @_ZN1DD1Ev(%class.D* returned %this) 99 100 // CHECKIOS5-LABEL: define %class.D* @_ZN1DC2Ev(%class.D* %this, i8** %vtt) 101 // CHECKIOS5-LABEL: define %class.D* @_ZN1DC1Ev(%class.D* %this) 102 // CHECKIOS5-LABEL: define %class.D* @_ZN1DD2Ev(%class.D* %this, i8** %vtt) 103 // CHECKIOS5-LABEL: define %class.D* @_ZN1DD1Ev(%class.D* %this) 104 105 // CHECKMS-LABEL: define x86_thiscallcc %class.D* @"\01??0D@@QAE@XZ"(%class.D* returned %this, i32 %is_most_derived) 106 // CHECKMS-LABEL: define x86_thiscallcc void @"\01??1D@@QAE@XZ"(%class.D* %this) 107 108 class E { 109 public: 110 E(); 111 virtual ~E(); 112 }; 113 114 E* gete(); 115 116 void test_destructor() { 117 const E& e1 = E(); 118 E* e2 = gete(); 119 e2->~E(); 120 } 121 122 // CHECKARM-LABEL: define void @_Z15test_destructorv() 123 124 // Verify that virtual calls to destructors are not marked with a 'returned' 125 // this parameter at the call site... 126 // CHECKARM: [[VFN:%.*]] = getelementptr inbounds %class.E* (%class.E*)** 127 // CHECKARM: [[THUNK:%.*]] = load %class.E* (%class.E*)** [[VFN]] 128 // CHECKARM: call %class.E* [[THUNK]](%class.E* % 129 130 // ...but static calls create declarations with 'returned' this 131 // CHECKARM: {{%.*}} = call %class.E* @_ZN1ED1Ev(%class.E* % 132 133 // CHECKARM: declare %class.E* @_ZN1ED1Ev(%class.E* returned) 134
