110 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			110 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			C++
		
	
	
	
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s -std=c++11 | FileCheck %s
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struct A { 
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  A();
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  A(const A&);
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  A(A&);
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  ~A();
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};
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struct B {
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  B();
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  B(B&);
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};
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struct C {
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  C() {}
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  C(C& other, A a = A());
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  int i, j;
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};
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struct POD {
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  int array[3][4];
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};
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struct D : A, B, virtual C { 
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  D();
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  int scalar;
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  int scalar_array[2][3];
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  B class_member;
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  C class_member_array[2][3];
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  POD pod_array[2][3];
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  union {
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    int x;
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    float f[3];
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  };
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};
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void f(D d) {
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  D d2(d);
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}
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// CHECK-LABEL: define linkonce_odr void @_ZN1DC1ERS_(%struct.D* %this, %struct.D* dereferenceable({{[0-9]+}}) %0) unnamed_addr
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// CHECK: call void @_ZN1AC1Ev
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// CHECK: call void @_ZN1CC2ERS_1A
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// CHECK: call void @_ZN1AD1Ev
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// CHECK: call void @_ZN1AC2ERS_
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// CHECK: call void @_ZN1BC2ERS_
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// CHECK: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 28}}
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// CHECK: call void @_ZN1BC1ERS_
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// CHECK: br label
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// CHECK: call void @_ZN1AC1Ev
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// CHECK: call void @_ZN1CC1ERS_1A
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// CHECK: call void @_ZN1AD1Ev
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// CHECK: {{icmp eq.*, 3}}
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// CHECK: br i1
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// CHECK: {{icmp eq.*, 2}}
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// CHECK: br i1
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// CHECK: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 300}}
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// CHECK: ret void
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template<class T> struct X0 { void f0(T * ) { } };
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template <class > struct X1 { X1( X1& , int = 0 ) { } };
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struct X2 { X1<int> result; };
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void test_X2()
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{
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  typedef X2 impl;
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  typedef X0<impl> pimpl;
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  impl* i;
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  pimpl pdata;
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  pdata.f0( new impl(*i));
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}
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// rdar://problem/9598341
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namespace test3 {
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  struct A { A(const A&); A&operator=(const A&); };
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  struct B { A a; unsigned : 0; };
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  void test(const B &x) {
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    B y = x;
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    y = x;
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  }
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}
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namespace test4 {
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  // When determining whether to implement an array copy as a memcpy, look at
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  // whether the *selected* constructor is trivial.
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  struct S {
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    int arr[5][5];
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    S(S &);
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    S(const S &) = default;
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  };
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  // CHECK: @_ZN5test42f1
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  void f1(S a) {
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    // CHECK-NOT: memcpy
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    // CHECK: call void @_ZN5test41SC1ERS0_
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    // CHECK-NOT: memcpy
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    S b(a);
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    // CHECK: }
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  }
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  // CHECK: @_ZN5test42f2
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  void f2(const S a) {
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    // CHECK-NOT: call void @_ZN5test41SC1ERS0_
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    // CHECK: memcpy
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    // CHECK-NOT: call void @_ZN5test41SC1ERS0_
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    S b(a);
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    // CHECK: }
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  }
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}
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