1 // RUN: %clang_cc1 -triple x86_64-linux-gnu -std=c++11 %s -emit-llvm -o - | FileCheck %s
5 struct S { S(); S(int); ~S(); int n; };
7 void *p = new S[2][3]{ { 1, 2, 3 }, { 4, 5, 6 } };
10 // CHECK: %[[ALLOC:.*]] = call noalias 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:.*]]*
16 // Explicit initializers:
20 // CHECK: %[[S_0:.*]] = bitcast %[[S]]* %[[START_AS_S]] to [3 x %[[S]]]*
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)
31 // CHECK: %[[S_1:.*]] = getelementptr inbounds [3 x %[[S]]], [3 x %[[S]]]* %[[S_0]], i32 1
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)
45 void *q = new S[n][3]{ { 1, 2, 3 }, { 4, 5, 6 } };
47 // CHECK-LABEL: define
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 noalias i8* @_Znam(i64 %{{.*}})
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]]*
60 // Explicit initializers:
64 // CHECK: %[[S_0:.*]] = bitcast %[[S]]* %[[START_AS_S]] to [3 x %[[S]]]*
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)
75 // CHECK: %[[S_1:.*]] = getelementptr inbounds [3 x %[[S]]], [3 x %[[S]]]* %[[S_0]], i32 1
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)
86 // CHECK: %[[S_2:.*]] = getelementptr inbounds [3 x %[[S]]], [3 x %[[S]]]* %[[S_1]], i32 1
87 // CHECK: %[[S_2_AS_S:.*]] = bitcast [3 x %[[S]]]* %[[S_2]] to %[[S]]*
89 // CHECK: %[[REST:.*]] = sub i64 %[[ELTS]], 6
90 // CHECK: icmp eq i64 %[[REST]], 0
93 // CHECK: %[[END:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_2_AS_S]], i64 %[[REST]]
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]]
105 void *r = new T[n][3]{ { 1, 2, 3 }, { 4, 5, 6 } };
107 // CHECK-LABEL: define
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
114 // CHECK-NOT: @llvm.uadd.with.overflow
116 // CHECK: %[[ALLOC:.*]] = call noalias i8* @_Znam(i64 %{{.*}})
118 // CHECK: %[[START_AS_T:.*]] = bitcast i8* %[[ALLOC]] to %[[T:.*]]*
120 // Explicit initializers:
124 // CHECK: %[[T_0:.*]] = bitcast %[[T]]* %[[START_AS_T]] to [3 x %[[T]]]*
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]]
138 // CHECK: %[[T_1:.*]] = getelementptr inbounds [3 x %[[T]]], [3 x %[[T]]]* %[[T_0]], i32 1
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]]
150 // And the rest gets memset to 0.
152 // CHECK: %[[T_2:.*]] = getelementptr inbounds [3 x %[[T]]], [3 x %[[T]]]* %[[T_1]], i32 1
153 // CHECK: %[[T_2_AS_T:.*]] = bitcast [3 x %[[T]]]* %[[T_2]] to %[[T]]*
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)