| 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 dso_local x86_thiscallcc %class.B* @"??0B@@QAE@PAH@Z"(%class.B* returned %this, i32* %i) |
| 49 | // CHECKMS-LABEL: define dso_local x86_thiscallcc void @"??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 dso_local x86_thiscallcc %class.C* @"??0C@@QAE@PAHPAD@Z"(%class.C* returned %this, i32* %i, i8* %c) |
| 87 | // CHECKMS-LABEL: define dso_local x86_thiscallcc void @"??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 dso_local x86_thiscallcc %class.D* @"??0D@@QAE@XZ"(%class.D* returned %this, i32 %is_most_derived) |
| 114 | // CHECKMS-LABEL: define dso_local x86_thiscallcc void @"??1D@@UAE@XZ"(%class.D* %this) |
| 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 | |