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=wasm32-unknown-unknown \ 5 //RUN: | FileCheck --check-prefix=CHECKARM %s 6 //RUN: %clang_cc1 %s -emit-llvm -o - -triple=i386-pc-win32 -fno-rtti | FileCheck --check-prefix=CHECKMS %s 7 // FIXME: these tests crash on the bots when run with -triple=x86_64-pc-win32 8 9 // Make sure we attach the 'returned' attribute to the 'this' parameter of 10 // constructors and destructors which return this (and only these cases) 11 12 class A { 13 public: 14 A(); 15 virtual ~A(); 16 17 private: 18 int x_; 19 }; 20 21 class B : public A { 22 public: 23 B(int *i); 24 virtual ~B(); 25 26 private: 27 int *i_; 28 }; 29 30 B::B(int *i) : i_(i) { } 31 B::~B() { } 32 33 // CHECKGEN-LABEL: define void @_ZN1BC2EPi(%class.B* %this, i32* %i) 34 // CHECKGEN-LABEL: define void @_ZN1BC1EPi(%class.B* %this, i32* %i) 35 // CHECKGEN-LABEL: define void @_ZN1BD2Ev(%class.B* %this) 36 // CHECKGEN-LABEL: define void @_ZN1BD1Ev(%class.B* %this) 37 38 // CHECKARM-LABEL: define %class.B* @_ZN1BC2EPi(%class.B* returned %this, i32* %i) 39 // CHECKARM-LABEL: define %class.B* @_ZN1BC1EPi(%class.B* returned %this, i32* %i) 40 // CHECKARM-LABEL: define %class.B* @_ZN1BD2Ev(%class.B* returned %this) 41 // CHECKARM-LABEL: define %class.B* @_ZN1BD1Ev(%class.B* returned %this) 42 43 // CHECKIOS5-LABEL: define %class.B* @_ZN1BC2EPi(%class.B* %this, i32* %i) 44 // CHECKIOS5-LABEL: define %class.B* @_ZN1BC1EPi(%class.B* %this, i32* %i) 45 // CHECKIOS5-LABEL: define %class.B* @_ZN1BD2Ev(%class.B* %this) 46 // CHECKIOS5-LABEL: define %class.B* @_ZN1BD1Ev(%class.B* %this) 47 48 // CHECKMS-LABEL: define x86_thiscallcc %class.B* @"\01??0B@@QAE@PAH@Z"(%class.B* returned %this, i32* %i) 49 // CHECKMS-LABEL: define x86_thiscallcc void @"\01??1B@@UAE@XZ"(%class.B* %this) 50 51 class C : public A, public B { 52 public: 53 C(int *i, char *c); 54 virtual ~C(); 55 private: 56 char *c_; 57 }; 58 59 C::C(int *i, char *c) : B(i), c_(c) { } 60 C::~C() { } 61 62 // CHECKGEN-LABEL: define void @_ZN1CC2EPiPc(%class.C* %this, i32* %i, i8* %c) 63 // CHECKGEN-LABEL: define void @_ZN1CC1EPiPc(%class.C* %this, i32* %i, i8* %c) 64 // CHECKGEN-LABEL: define void @_ZN1CD2Ev(%class.C* %this) 65 // CHECKGEN-LABEL: define void @_ZN1CD1Ev(%class.C* %this) 66 // CHECKGEN-LABEL: define void @_ZThn8_N1CD1Ev(%class.C* %this) 67 // CHECKGEN-LABEL: define void @_ZN1CD0Ev(%class.C* %this) 68 // CHECKGEN-LABEL: define void @_ZThn8_N1CD0Ev(%class.C* %this) 69 70 // CHECKARM-LABEL: define %class.C* @_ZN1CC2EPiPc(%class.C* returned %this, i32* %i, i8* %c) 71 // CHECKARM-LABEL: define %class.C* @_ZN1CC1EPiPc(%class.C* returned %this, i32* %i, i8* %c) 72 // CHECKARM-LABEL: define %class.C* @_ZN1CD2Ev(%class.C* returned %this) 73 // CHECKARM-LABEL: define %class.C* @_ZN1CD1Ev(%class.C* returned %this) 74 // CHECKARM-LABEL: define %class.C* @_ZThn8_N1CD1Ev(%class.C* %this) 75 // CHECKARM-LABEL: define void @_ZN1CD0Ev(%class.C* %this) 76 // CHECKARM-LABEL: define void @_ZThn8_N1CD0Ev(%class.C* %this) 77 78 // CHECKIOS5-LABEL: define %class.C* @_ZN1CC2EPiPc(%class.C* %this, i32* %i, i8* %c) 79 // CHECKIOS5-LABEL: define %class.C* @_ZN1CC1EPiPc(%class.C* %this, i32* %i, i8* %c) 80 // CHECKIOS5-LABEL: define %class.C* @_ZN1CD2Ev(%class.C* %this) 81 // CHECKIOS5-LABEL: define %class.C* @_ZN1CD1Ev(%class.C* %this) 82 // CHECKIOS5-LABEL: define %class.C* @_ZThn8_N1CD1Ev(%class.C* %this) 83 // CHECKIOS5-LABEL: define void @_ZN1CD0Ev(%class.C* %this) 84 // CHECKIOS5-LABEL: define void @_ZThn8_N1CD0Ev(%class.C* %this) 85 86 // CHECKMS-LABEL: define x86_thiscallcc %class.C* @"\01??0C@@QAE@PAHPAD@Z"(%class.C* returned %this, i32* %i, i8* %c) 87 // CHECKMS-LABEL: define x86_thiscallcc void @"\01??1C@@UAE@XZ"(%class.C* %this) 88 89 class D : public virtual A { 90 public: 91 D(); 92 ~D(); 93 }; 94 95 D::D() { } 96 D::~D() { } 97 98 // CHECKGEN-LABEL: define void @_ZN1DC2Ev(%class.D* %this, i8** %vtt) 99 // CHECKGEN-LABEL: define void @_ZN1DC1Ev(%class.D* %this) 100 // CHECKGEN-LABEL: define void @_ZN1DD2Ev(%class.D* %this, i8** %vtt) 101 // CHECKGEN-LABEL: define void @_ZN1DD1Ev(%class.D* %this) 102 103 // CHECKARM-LABEL: define %class.D* @_ZN1DC2Ev(%class.D* returned %this, i8** %vtt) 104 // CHECKARM-LABEL: define %class.D* @_ZN1DC1Ev(%class.D* returned %this) 105 // CHECKARM-LABEL: define %class.D* @_ZN1DD2Ev(%class.D* returned %this, i8** %vtt) 106 // CHECKARM-LABEL: define %class.D* @_ZN1DD1Ev(%class.D* returned %this) 107 108 // CHECKIOS5-LABEL: define %class.D* @_ZN1DC2Ev(%class.D* %this, i8** %vtt) 109 // CHECKIOS5-LABEL: define %class.D* @_ZN1DC1Ev(%class.D* %this) 110 // CHECKIOS5-LABEL: define %class.D* @_ZN1DD2Ev(%class.D* %this, i8** %vtt) 111 // CHECKIOS5-LABEL: define %class.D* @_ZN1DD1Ev(%class.D* %this) 112 113 // CHECKMS-LABEL: define x86_thiscallcc %class.D* @"\01??0D@@QAE@XZ"(%class.D* returned %this, i32 %is_most_derived) 114 // CHECKMS-LABEL: define x86_thiscallcc void @"\01??1D@@UAE@XZ"(%class.D*) 115 116 class E { 117 public: 118 E(); 119 virtual ~E(); 120 }; 121 122 E* gete(); 123 124 void test_destructor() { 125 const E& e1 = E(); 126 E* e2 = gete(); 127 e2->~E(); 128 } 129 130 // CHECKARM-LABEL: define void @_Z15test_destructorv() 131 132 // Verify that virtual calls to destructors are not marked with a 'returned' 133 // this parameter at the call site... 134 // CHECKARM: [[VFN:%.*]] = getelementptr inbounds %class.E* (%class.E*)*, %class.E* (%class.E*)** 135 // CHECKARM: [[THUNK:%.*]] = load %class.E* (%class.E*)*, %class.E* (%class.E*)** [[VFN]] 136 // CHECKARM: call %class.E* [[THUNK]](%class.E* % 137 138 // ...but static calls create declarations with 'returned' this 139 // CHECKARM: {{%.*}} = call %class.E* @_ZN1ED1Ev(%class.E* % 140 141 // CHECKARM: declare %class.E* @_ZN1ED1Ev(%class.E* returned) 142
