1// RUN: %clang_cc1 -triple x86_64-linux-gnu -std=c++11 %s -emit-llvm -o - | FileCheck %s
2
3// PR10878
4
5struct S { S(); S(int); ~S(); int n; };
6
7void *p = new S[2][3]{ { 1, 2, 3 }, { 4, 5, 6 } };
8
9// CHECK-LABEL: define
10// CHECK: %[[ALLOC:.*]] = call i8* @_Znam(i64 32)
11// CHECK: %[[COOKIE:.*]] = bitcast i8* %[[ALLOC]] to i64*
12// CHECK: store i64 6, i64* %[[COOKIE]]
13// CHECK: %[[START_AS_i8:.*]] = getelementptr inbounds i8, i8* %[[ALLOC]], i64 8
14// CHECK: %[[START_AS_S:.*]] = bitcast i8* %[[START_AS_i8]] to %[[S:.*]]*
15//
16// Explicit initializers:
17//
18// { 1, 2, 3 }
19//
20// CHECK: %[[S_0:.*]] = bitcast %[[S]]* %[[START_AS_S]] to [3 x %[[S]]]*
21//
22// CHECK: %[[S_0_0:.*]] = getelementptr inbounds [3 x %[[S]]], [3 x %[[S]]]* %[[S_0]], i64 0, i64 0
23// CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_0_0]], i32 1)
24// CHECK: %[[S_0_1:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_0_0]], i64 1
25// CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_0_1]], i32 2)
26// CHECK: %[[S_0_2:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_0_1]], i64 1
27// CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_0_2]], i32 3)
28//
29// { 4, 5, 6 }
30//
31// CHECK: %[[S_1:.*]] = getelementptr inbounds [3 x %[[S]]], [3 x %[[S]]]* %[[S_0]], i64 1
32//
33// CHECK: %[[S_1_0:.*]] = getelementptr inbounds [3 x %[[S]]], [3 x %[[S]]]* %[[S_1]], i64 0, i64 0
34// CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_1_0]], i32 4)
35// CHECK: %[[S_1_1:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_1_0]], i64 1
36// CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_1_1]], i32 5)
37// CHECK: %[[S_1_2:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_1_1]], i64 1
38// CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_1_2]], i32 6)
39//
40// CHECK-NOT: br i1
41// CHECK-NOT: call
42// CHECK: }
43
44int n;
45void *q = new S[n][3]{ { 1, 2, 3 }, { 4, 5, 6 } };
46
47// CHECK-LABEL: define
48//
49// CHECK: load i32, i32* @n
50// CHECK: call {{.*}} @llvm.umul.with.overflow.i64(i64 %[[N:.*]], i64 12)
51// CHECK: %[[ELTS:.*]] = mul i64 %[[N]], 3
52// CHECK: call {{.*}} @llvm.uadd.with.overflow.i64(i64 %{{.*}}, i64 8)
53// CHECK: %[[ALLOC:.*]] = call i8* @_Znam(i64 %{{.*}})
54//
55// CHECK: %[[COOKIE:.*]] = bitcast i8* %[[ALLOC]] to i64*
56// CHECK: store i64 %[[ELTS]], i64* %[[COOKIE]]
57// CHECK: %[[START_AS_i8:.*]] = getelementptr inbounds i8, i8* %[[ALLOC]], i64 8
58// CHECK: %[[START_AS_S:.*]] = bitcast i8* %[[START_AS_i8]] to %[[S]]*
59//
60// Explicit initializers:
61//
62// { 1, 2, 3 }
63//
64// CHECK: %[[S_0:.*]] = bitcast %[[S]]* %[[START_AS_S]] to [3 x %[[S]]]*
65//
66// CHECK: %[[S_0_0:.*]] = getelementptr inbounds [3 x %[[S]]], [3 x %[[S]]]* %[[S_0]], i64 0, i64 0
67// CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_0_0]], i32 1)
68// CHECK: %[[S_0_1:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_0_0]], i64 1
69// CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_0_1]], i32 2)
70// CHECK: %[[S_0_2:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_0_1]], i64 1
71// CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_0_2]], i32 3)
72//
73// { 4, 5, 6 }
74//
75// CHECK: %[[S_1:.*]] = getelementptr inbounds [3 x %[[S]]], [3 x %[[S]]]* %[[S_0]], i64 1
76//
77// CHECK: %[[S_1_0:.*]] = getelementptr inbounds [3 x %[[S]]], [3 x %[[S]]]* %[[S_1]], i64 0, i64 0
78// CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_1_0]], i32 4)
79// CHECK: %[[S_1_1:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_1_0]], i64 1
80// CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_1_1]], i32 5)
81// CHECK: %[[S_1_2:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_1_1]], i64 1
82// CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_1_2]], i32 6)
83//
84// And the rest.
85//
86// CHECK: %[[S_2:.*]] = getelementptr inbounds [3 x %[[S]]], [3 x %[[S]]]* %[[S_1]], i64 1
87// CHECK: %[[S_2_AS_S:.*]] = bitcast [3 x %[[S]]]* %[[S_2]] to %[[S]]*
88//
89// CHECK: %[[REST:.*]] = sub i64 %[[ELTS]], 6
90// CHECK: icmp eq i64 %[[REST]], 0
91// CHECK: br i1
92//
93// CHECK: %[[END:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_2_AS_S]], i64 %[[REST]]
94// CHECK: br label
95//
96// CHECK: %[[CUR:.*]] = phi %[[S]]* [ %[[S_2_AS_S]], {{.*}} ], [ %[[NEXT:.*]], {{.*}} ]
97// CHECK: call void @_ZN1SC1Ev(%[[S]]* %[[CUR]])
98// CHECK: %[[NEXT]] = getelementptr inbounds %[[S]], %[[S]]* %[[CUR]], i64 1
99// CHECK: icmp eq %[[S]]* %[[NEXT]], %[[END]]
100// CHECK: br i1
101//
102// CHECK: }
103
104struct T { int a; };
105void *r = new T[n][3]{ { 1, 2, 3 }, { 4, 5, 6 } };
106
107// CHECK-LABEL: define
108//
109// CHECK: load i32, i32* @n
110// CHECK: call {{.*}} @llvm.umul.with.overflow.i64(i64 %[[N:.*]], i64 12)
111// CHECK: %[[ELTS:.*]] = mul i64 %[[N]], 3
112//
113// No cookie.
114// CHECK-NOT: @llvm.uadd.with.overflow
115//
116// CHECK: %[[ALLOC:.*]] = call i8* @_Znam(i64 %{{.*}})
117//
118// CHECK: %[[START_AS_T:.*]] = bitcast i8* %[[ALLOC]] to %[[T:.*]]*
119//
120// Explicit initializers:
121//
122// { 1, 2, 3 }
123//
124// CHECK: %[[T_0:.*]] = bitcast %[[T]]* %[[START_AS_T]] to [3 x %[[T]]]*
125//
126// CHECK: %[[T_0_0:.*]] = getelementptr inbounds [3 x %[[T]]], [3 x %[[T]]]* %[[T_0]], i64 0, i64 0
127// CHECK: %[[T_0_0_0:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_0_0]], i32 0, i32 0
128// CHECK: store i32 1, i32* %[[T_0_0_0]]
129// CHECK: %[[T_0_1:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_0_0]], i64 1
130// CHECK: %[[T_0_1_0:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_0_1]], i32 0, i32 0
131// CHECK: store i32 2, i32* %[[T_0_1_0]]
132// CHECK: %[[T_0_2:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_0_1]], i64 1
133// CHECK: %[[T_0_2_0:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_0_2]], i32 0, i32 0
134// CHECK: store i32 3, i32* %[[T_0_2_0]]
135//
136// { 4, 5, 6 }
137//
138// CHECK: %[[T_1:.*]] = getelementptr inbounds [3 x %[[T]]], [3 x %[[T]]]* %[[T_0]], i64 1
139//
140// CHECK: %[[T_1_0:.*]] = getelementptr inbounds [3 x %[[T]]], [3 x %[[T]]]* %[[T_1]], i64 0, i64 0
141// CHECK: %[[T_1_0_0:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_1_0]], i32 0, i32 0
142// CHECK: store i32 4, i32* %[[T_1_0_0]]
143// CHECK: %[[T_1_1:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_1_0]], i64 1
144// CHECK: %[[T_1_1_0:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_1_1]], i32 0, i32 0
145// CHECK: store i32 5, i32* %[[T_1_1_0]]
146// CHECK: %[[T_1_2:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_1_1]], i64 1
147// CHECK: %[[T_1_2_0:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_1_2]], i32 0, i32 0
148// CHECK: store i32 6, i32* %[[T_1_2_0]]
149//
150// And the rest gets memset to 0.
151//
152// CHECK: %[[T_2:.*]] = getelementptr inbounds [3 x %[[T]]], [3 x %[[T]]]* %[[T_1]], i64 1
153// CHECK: %[[T_2_AS_T:.*]] = bitcast [3 x %[[T]]]* %[[T_2]] to %[[T]]*
154//
155// CHECK: %[[SIZE:.*]] = sub i64 %{{.*}}, 24
156// CHECK: %[[REST:.*]] = bitcast %[[T]]* %[[T_2_AS_T]] to i8*
157// CHECK: call void @llvm.memset.p0i8.i64(i8* %[[REST]], i8 0, i64 %[[SIZE]], i32 4, i1 false)
158//
159// CHECK: }
160
161