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