1 // RUN: %clang_cc1 -std=c++11 -triple x86_64-apple-darwin10 %s -emit-llvm -o %t
2 // RUN: FileCheck %s < %t
3 // RUN: FileCheck -check-prefix=CHECK-PR10720 %s < %t
4
5 extern "C" int printf(...);
6
7 struct M {
MM8 M() { printf("M()\n"); }
MM9 M(int i) { iM = i; printf("M(%d)\n", i); }
10 int iM;
MPRM11 void MPR() {printf("iM = %d\n", iM); };
12 };
13
14 struct P {
PP15 P() { printf("P()\n"); }
PP16 P(int i) { iP = i; printf("P(%d)\n", i); }
17 int iP;
PPRP18 void PPR() {printf("iP = %d\n", iP); };
19 };
20
21 struct Q {
QQ22 Q() { printf("Q()\n"); }
QQ23 Q(int i) { iQ = i; printf("Q(%d)\n", i); }
24 int iQ;
QPRQ25 void QPR() {printf("iQ = %d\n", iQ); };
26 };
27
28 struct N : M , P, Q {
NN29 N() : f1(1.314), P(2000), ld(00.1234+f1), M(1000), Q(3000),
30 d1(3.4567), i1(1234), m1(100) { printf("N()\n"); }
31 M m1;
32 M m2;
33 float f1;
34 int i1;
35 float d1;
PRN36 void PR() {
37 printf("f1 = %f d1 = %f i1 = %d ld = %f \n", f1,d1,i1, ld);
38 MPR();
39 PPR();
40 QPR();
41 printf("iQ = %d\n", iQ);
42 printf("iP = %d\n", iP);
43 printf("iM = %d\n", iM);
44 // FIXME. We don't yet support this syntax.
45 // printf("iQ = %d\n", (*this).iQ);
46 printf("iQ = %d\n", this->iQ);
47 printf("iP = %d\n", this->iP);
48 printf("iM = %d\n", this->iM);
49 }
50 float ld;
51 float ff;
52 M arr_m[3];
53 P arr_p[1][3];
54 Q arr_q[2][3][4];
55 };
56
main()57 int main() {
58 M m1;
59
60 N n1;
61 n1.PR();
62 }
63
64 // PR5826
65 template <class T> struct A {
AA66 A() {}
AA67 A(int) {}
AA68 A(const A&) {}
~AA69 ~A() {}
operator intA70 operator int() {return 0;}
71 };
72
73 // CHECK-LABEL: define void @_Z1fv()
f()74 void f() {
75 // CHECK: call void @_ZN1AIsEC1Ei
76 A<short> a4 = 97;
77
78 // CHECK-NEXT: store i32 17
79 int i = 17;
80
81 // CHECK-NEXT: call void @_ZN1AIsED1Ev
82 // CHECK-NOT: call void @_ZN1AIsED1Ev
83 // CHECK: ret void
84 }
85
86 // Make sure we initialize the vtable pointer if it's required by a
87 // base initializer.
88 namespace InitVTable {
89 struct A { A(int); };
90 struct B : A {
91 virtual int foo();
92 B();
93 B(int);
94 };
95
96 // CHECK-LABEL: define void @_ZN10InitVTable1BC2Ev(%"struct.InitVTable::B"* %this) unnamed_addr
97 // CHECK: [[T0:%.*]] = bitcast [[B:%.*]]* [[THIS:%.*]] to i8***
98 // CHECK-NEXT: store i8** getelementptr inbounds ([3 x i8*]* @_ZTVN10InitVTable1BE, i64 0, i64 2), i8*** [[T0]]
99 // CHECK: [[VTBL:%.*]] = load i32 ([[B]]*)*** {{%.*}}
100 // CHECK-NEXT: [[FNP:%.*]] = getelementptr inbounds i32 ([[B]]*)** [[VTBL]], i64 0
101 // CHECK-NEXT: [[FN:%.*]] = load i32 ([[B]]*)** [[FNP]]
102 // CHECK-NEXT: [[ARG:%.*]] = call i32 [[FN]]([[B]]* [[THIS]])
103 // CHECK-NEXT: call void @_ZN10InitVTable1AC2Ei({{.*}}* {{%.*}}, i32 [[ARG]])
104 // CHECK-NEXT: [[T0:%.*]] = bitcast [[B]]* [[THIS]] to i8***
105 // CHECK-NEXT: store i8** getelementptr inbounds ([3 x i8*]* @_ZTVN10InitVTable1BE, i64 0, i64 2), i8*** [[T0]]
106 // CHECK-NEXT: ret void
B()107 B::B() : A(foo()) {}
108
109 // CHECK-LABEL: define void @_ZN10InitVTable1BC2Ei(%"struct.InitVTable::B"* %this, i32 %x) unnamed_addr
110 // CHECK: [[ARG:%.*]] = add nsw i32 {{%.*}}, 5
111 // CHECK-NEXT: call void @_ZN10InitVTable1AC2Ei({{.*}}* {{%.*}}, i32 [[ARG]])
112 // CHECK-NEXT: [[T0:%.*]] = bitcast [[B]]* {{%.*}} to i8***
113 // CHECK-NEXT: store i8** getelementptr inbounds ([3 x i8*]* @_ZTVN10InitVTable1BE, i64 0, i64 2), i8*** [[T0]]
114 // CHECK-NEXT: ret void
B(int x)115 B::B(int x) : A(x + 5) {}
116 }
117
118 namespace rdar9694300 {
119 struct X {
120 int x;
121 };
122
123 // CHECK-LABEL: define void @_ZN11rdar96943001fEv
f()124 void f() {
125 // CHECK: alloca
126 X x;
127 // CHECK-NEXT: [[I:%.*]] = alloca i32
128 // CHECK-NEXT: store i32 17, i32* [[I]]
129 int i = 17;
130 // CHECK-NEXT: ret void
131 }
132 }
133
134 // Check that we emit a zero initialization step for list-value-initialization
135 // which calls a trivial default constructor.
136 namespace PR13273 {
137 struct U {
138 int t;
139 U() = default;
140 };
141
142 struct S : U {
143 S() = default;
144 };
145
146 // CHECK: define {{.*}}@_ZN7PR132731fEv(
f()147 int f() {
148 // CHECK-NOT: }
149 // CHECK: llvm.memset{{.*}}i8 0
150 return (new S{})->t;
151 }
152 }
153
154 template<typename T>
155 struct X {
156 X(const X &);
157
158 T *start;
159 T *end;
160 };
161
162 template<typename T> struct X;
163
164 // Make sure that the instantiated constructor initializes start and
165 // end properly.
166 // CHECK-LABEL: define linkonce_odr void @_ZN1XIiEC2ERKS0_(%struct.X* %this, %struct.X* nonnull %other) unnamed_addr
167 // CHECK: {{store.*null}}
168 // CHECK: {{store.*null}}
169 // CHECK: ret
170 template<typename T>
X(const X & other)171 X<T>::X(const X &other) : start(0), end(0) { }
172
get_X(X<int> x)173 X<int> get_X(X<int> x) { return x; }
174
175 namespace PR10720 {
176 struct X {
177 X(const X&);
178 X(X&&);
179 X& operator=(const X&);
180 X& operator=(X&&);
181 ~X();
182 };
183
184 struct pair2 {
185 X second[4];
186
187 // CHECK-PR10720: define linkonce_odr {{.*}} @_ZN7PR107205pair2aSERKS0_
188 // CHECK-PR10720: load
189 // CHECK-PR10720: icmp ne
190 // CHECK-PR10720-NEXT: br i1
191 // CHECK-PR10720: call {{.*}} @_ZN7PR107201XaSERKS0_
192 // CHECK-PR10720: ret
193 pair2 &operator=(const pair2&) = default;
194
195 // CHECK-PR10720: define linkonce_odr {{.*}} @_ZN7PR107205pair2aSEOS0_
196 // CHECK-PR10720: load
197 // CHECK-PR10720: icmp ne
198 // CHECK-PR10720-NEXT: br i1
199 // CHECK-PR10720: call {{.*}} @_ZN7PR107201XaSEOS0_
200 // CHECK-PR10720: ret
201 pair2 &operator=(pair2&&) = default;
202
203 // CHECK-PR10720-LABEL: define linkonce_odr void @_ZN7PR107205pair2C2EOS0_
204 // CHECK-PR10720-NOT: ret
205 // CHECK-PR10720: load
206 // CHECK-PR10720: icmp ult
207 // CHECK-PR10720-NEXT: br i1
208 // CHECK-PR10720: call void @_ZN7PR107201XC1EOS0_
209 // CHECK-PR10720-NEXT: br label
210 // CHECK-PR10720: ret void
211 pair2(pair2&&) = default;
212
213 // CHECK-PR10720-LABEL: define linkonce_odr void @_ZN7PR107205pair2C2ERKS0_
214 // CHECK-PR10720-NOT: ret
215 // CHECK-PR10720: load
216 // CHECK-PR10720: icmp ult
217 // CHECK-PR10720-NEXT: br i1
218 // CHECK-PR10720: call void @_ZN7PR107201XC1ERKS0_
219 // CHECK-PR10720-NEXT: br label
220 // CHECK-PR10720: ret void
221 pair2(const pair2&) = default;
222 };
223
224 struct pair : X { // Make the copy constructor non-trivial, so we actually generate it.
225 int second[4];
226 // CHECK-PR10720-LABEL: define linkonce_odr void @_ZN7PR107204pairC2ERKS0_
227 // CHECK-PR10720-NOT: ret
228 // CHECK-PR10720: call void @llvm.memcpy
229 // CHECK-PR10720-NEXT: ret void
230 pair(const pair&) = default;
231 };
232
foo(const pair & x,const pair2 & x2)233 void foo(const pair &x, const pair2 &x2) {
234 pair y(x);
235 pair2 y2(x2);
236 pair2 y2m(static_cast<pair2&&>(y2));
237
238 y2 = x2;
239 y2m = static_cast<pair2&&>(y2);
240 }
241
242 }
243