f4a2713ac8
Change-Id: Ia40e9ffdf29b5dab2f122f673ff6802a58bc690f
116 lines
4 KiB
C++
116 lines
4 KiB
C++
//RUN: %clang_cc1 %s -emit-llvm -o - -triple=i686-unknown-linux | FileCheck --check-prefix=CHECKGEN %s
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//RUN: %clang_cc1 %s -emit-llvm -o - -triple=thumbv7-apple-ios3.0 -target-abi apcs-gnu | FileCheck --check-prefix=CHECKARM %s
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//RUN: %clang_cc1 %s -emit-llvm -o - -triple=i386-pc-win32 -cxx-abi microsoft -fno-rtti | FileCheck --check-prefix=CHECKMS %s
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// FIXME: these tests crash on the bots when run with -triple=x86_64-pc-win32
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// Make sure we attach the 'returned' attribute to the 'this' parameter of
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// constructors and destructors which return this (and only these cases)
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class A {
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public:
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A();
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~A();
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private:
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int x_;
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};
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class B : public A {
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public:
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B(int *i);
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~B();
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private:
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int *i_;
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};
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B::B(int *i) : i_(i) { }
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B::~B() { }
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// CHECKGEN-LABEL: define void @_ZN1BC1EPi(%class.B* %this, i32* %i)
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// CHECKGEN-LABEL: define void @_ZN1BC2EPi(%class.B* %this, i32* %i)
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// CHECKGEN-LABEL: define void @_ZN1BD1Ev(%class.B* %this)
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// CHECKGEN-LABEL: define void @_ZN1BD2Ev(%class.B* %this)
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// CHECKARM-LABEL: define %class.B* @_ZN1BC1EPi(%class.B* returned %this, i32* %i)
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// CHECKARM-LABEL: define %class.B* @_ZN1BC2EPi(%class.B* returned %this, i32* %i)
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// CHECKARM-LABEL: define %class.B* @_ZN1BD1Ev(%class.B* returned %this)
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// CHECKARM-LABEL: define %class.B* @_ZN1BD2Ev(%class.B* returned %this)
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// CHECKMS-LABEL: define x86_thiscallcc %class.B* @"\01??0B@@QAE@PAH@Z"(%class.B* returned %this, i32* %i)
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// CHECKMS-LABEL: define x86_thiscallcc void @"\01??1B@@QAE@XZ"(%class.B* %this)
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class C : public A, public B {
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public:
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C(int *i, char *c);
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virtual ~C();
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private:
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char *c_;
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};
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C::C(int *i, char *c) : B(i), c_(c) { }
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C::~C() { }
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// CHECKGEN-LABEL: define void @_ZN1CC1EPiPc(%class.C* %this, i32* %i, i8* %c)
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// CHECKGEN-LABEL: define void @_ZN1CC2EPiPc(%class.C* %this, i32* %i, i8* %c)
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// CHECKGEN-LABEL: define void @_ZN1CD0Ev(%class.C* %this)
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// CHECKGEN-LABEL: define void @_ZN1CD1Ev(%class.C* %this)
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// CHECKGEN-LABEL: define void @_ZN1CD2Ev(%class.C* %this)
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// CHECKARM-LABEL: define %class.C* @_ZN1CC1EPiPc(%class.C* returned %this, i32* %i, i8* %c)
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// CHECKARM-LABEL: define %class.C* @_ZN1CC2EPiPc(%class.C* returned %this, i32* %i, i8* %c)
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// CHECKARM-LABEL: define void @_ZN1CD0Ev(%class.C* %this)
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// CHECKARM-LABEL: define %class.C* @_ZN1CD1Ev(%class.C* returned %this)
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// CHECKARM-LABEL: define %class.C* @_ZN1CD2Ev(%class.C* returned %this)
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// CHECKMS-LABEL: define x86_thiscallcc %class.C* @"\01??0C@@QAE@PAHPAD@Z"(%class.C* returned %this, i32* %i, i8* %c)
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// CHECKMS-LABEL: define x86_thiscallcc void @"\01??1C@@UAE@XZ"(%class.C* %this)
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class D : public virtual A {
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public:
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D();
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~D();
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};
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D::D() { }
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D::~D() { }
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// CHECKGEN-LABEL: define void @_ZN1DC1Ev(%class.D* %this)
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// CHECKGEN-LABEL: define void @_ZN1DC2Ev(%class.D* %this, i8** %vtt)
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// CHECKGEN-LABEL: define void @_ZN1DD1Ev(%class.D* %this)
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// CHECKGEN-LABEL: define void @_ZN1DD2Ev(%class.D* %this, i8** %vtt)
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// CHECKARM-LABEL: define %class.D* @_ZN1DC1Ev(%class.D* returned %this)
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// CHECKARM-LABEL: define %class.D* @_ZN1DC2Ev(%class.D* returned %this, i8** %vtt)
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// CHECKARM-LABEL: define %class.D* @_ZN1DD1Ev(%class.D* returned %this)
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// CHECKARM-LABEL: define %class.D* @_ZN1DD2Ev(%class.D* returned %this, i8** %vtt)
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// CHECKMS-LABEL: define x86_thiscallcc %class.D* @"\01??0D@@QAE@XZ"(%class.D* returned %this, i32 %is_most_derived)
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// CHECKMS-LABEL: define x86_thiscallcc void @"\01??1D@@QAE@XZ"(%class.D* %this)
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class E {
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public:
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E();
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virtual ~E();
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};
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E* gete();
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void test_destructor() {
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const E& e1 = E();
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E* e2 = gete();
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e2->~E();
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}
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// CHECKARM-LABEL: define void @_Z15test_destructorv()
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// Verify that virtual calls to destructors are not marked with a 'returned'
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// this parameter at the call site...
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// CHECKARM: [[VFN:%.*]] = getelementptr inbounds %class.E* (%class.E*)**
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// CHECKARM: [[THUNK:%.*]] = load %class.E* (%class.E*)** [[VFN]]
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// CHECKARM: call %class.E* [[THUNK]](%class.E* %
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// ...but static calls create declarations with 'returned' this
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// CHECKARM: {{%.*}} = call %class.E* @_ZN1ED1Ev(%class.E* %
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// CHECKARM: declare %class.E* @_ZN1ED1Ev(%class.E* returned)
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