| // RUN: %clang_cc1 -triple x86_64-linux-gnu -std=c++11 %s -emit-llvm -o - | FileCheck %s |
| |
| // PR10878 |
| |
| struct S { S(); S(int); ~S(); int n; }; |
| |
| void *p = new S[2][3]{ { 1, 2, 3 }, { 4, 5, 6 } }; |
| |
| // CHECK-LABEL: define |
| // CHECK: %[[ALLOC:.*]] = call i8* @_Znam(i64 32) |
| // CHECK: %[[COOKIE:.*]] = bitcast i8* %[[ALLOC]] to i64* |
| // CHECK: store i64 6, i64* %[[COOKIE]] |
| // CHECK: %[[START_AS_i8:.*]] = getelementptr inbounds i8, i8* %[[ALLOC]], i64 8 |
| // CHECK: %[[START_AS_S:.*]] = bitcast i8* %[[START_AS_i8]] to %[[S:.*]]* |
| // |
| // Explicit initializers: |
| // |
| // { 1, 2, 3 } |
| // |
| // CHECK: %[[S_0:.*]] = bitcast %[[S]]* %[[START_AS_S]] to [3 x %[[S]]]* |
| // |
| // CHECK: %[[S_0_0:.*]] = getelementptr inbounds [3 x %[[S]]], [3 x %[[S]]]* %[[S_0]], i64 0, i64 0 |
| // CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_0_0]], i32 1) |
| // CHECK: %[[S_0_1:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_0_0]], i64 1 |
| // CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_0_1]], i32 2) |
| // CHECK: %[[S_0_2:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_0_1]], i64 1 |
| // CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_0_2]], i32 3) |
| // |
| // { 4, 5, 6 } |
| // |
| // CHECK: %[[S_1:.*]] = getelementptr inbounds [3 x %[[S]]], [3 x %[[S]]]* %[[S_0]], i64 1 |
| // |
| // CHECK: %[[S_1_0:.*]] = getelementptr inbounds [3 x %[[S]]], [3 x %[[S]]]* %[[S_1]], i64 0, i64 0 |
| // CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_1_0]], i32 4) |
| // CHECK: %[[S_1_1:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_1_0]], i64 1 |
| // CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_1_1]], i32 5) |
| // CHECK: %[[S_1_2:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_1_1]], i64 1 |
| // CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_1_2]], i32 6) |
| // |
| // CHECK-NOT: br i1 |
| // CHECK-NOT: call |
| // CHECK: } |
| |
| int n; |
| void *q = new S[n][3]{ { 1, 2, 3 }, { 4, 5, 6 } }; |
| |
| // CHECK-LABEL: define |
| // |
| // CHECK: load i32, i32* @n |
| // CHECK: call {{.*}} @llvm.umul.with.overflow.i64(i64 %[[N:.*]], i64 12) |
| // CHECK: %[[ELTS:.*]] = mul i64 %[[N]], 3 |
| // CHECK: call {{.*}} @llvm.uadd.with.overflow.i64(i64 %{{.*}}, i64 8) |
| // CHECK: %[[ALLOC:.*]] = call i8* @_Znam(i64 %{{.*}}) |
| // |
| // CHECK: %[[COOKIE:.*]] = bitcast i8* %[[ALLOC]] to i64* |
| // CHECK: store i64 %[[ELTS]], i64* %[[COOKIE]] |
| // CHECK: %[[START_AS_i8:.*]] = getelementptr inbounds i8, i8* %[[ALLOC]], i64 8 |
| // CHECK: %[[START_AS_S:.*]] = bitcast i8* %[[START_AS_i8]] to %[[S]]* |
| // |
| // Explicit initializers: |
| // |
| // { 1, 2, 3 } |
| // |
| // CHECK: %[[S_0:.*]] = bitcast %[[S]]* %[[START_AS_S]] to [3 x %[[S]]]* |
| // |
| // CHECK: %[[S_0_0:.*]] = getelementptr inbounds [3 x %[[S]]], [3 x %[[S]]]* %[[S_0]], i64 0, i64 0 |
| // CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_0_0]], i32 1) |
| // CHECK: %[[S_0_1:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_0_0]], i64 1 |
| // CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_0_1]], i32 2) |
| // CHECK: %[[S_0_2:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_0_1]], i64 1 |
| // CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_0_2]], i32 3) |
| // |
| // { 4, 5, 6 } |
| // |
| // CHECK: %[[S_1:.*]] = getelementptr inbounds [3 x %[[S]]], [3 x %[[S]]]* %[[S_0]], i64 1 |
| // |
| // CHECK: %[[S_1_0:.*]] = getelementptr inbounds [3 x %[[S]]], [3 x %[[S]]]* %[[S_1]], i64 0, i64 0 |
| // CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_1_0]], i32 4) |
| // CHECK: %[[S_1_1:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_1_0]], i64 1 |
| // CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_1_1]], i32 5) |
| // CHECK: %[[S_1_2:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_1_1]], i64 1 |
| // CHECK: call void @_ZN1SC1Ei(%[[S]]* %[[S_1_2]], i32 6) |
| // |
| // And the rest. |
| // |
| // CHECK: %[[S_2:.*]] = getelementptr inbounds [3 x %[[S]]], [3 x %[[S]]]* %[[S_1]], i64 1 |
| // CHECK: %[[S_2_AS_S:.*]] = bitcast [3 x %[[S]]]* %[[S_2]] to %[[S]]* |
| // |
| // CHECK: %[[REST:.*]] = sub i64 %[[ELTS]], 6 |
| // CHECK: icmp eq i64 %[[REST]], 0 |
| // CHECK: br i1 |
| // |
| // CHECK: %[[END:.*]] = getelementptr inbounds %[[S]], %[[S]]* %[[S_2_AS_S]], i64 %[[REST]] |
| // CHECK: br label |
| // |
| // CHECK: %[[CUR:.*]] = phi %[[S]]* [ %[[S_2_AS_S]], {{.*}} ], [ %[[NEXT:.*]], {{.*}} ] |
| // CHECK: call void @_ZN1SC1Ev(%[[S]]* %[[CUR]]) |
| // CHECK: %[[NEXT]] = getelementptr inbounds %[[S]], %[[S]]* %[[CUR]], i64 1 |
| // CHECK: icmp eq %[[S]]* %[[NEXT]], %[[END]] |
| // CHECK: br i1 |
| // |
| // CHECK: } |
| |
| struct T { int a; }; |
| void *r = new T[n][3]{ { 1, 2, 3 }, { 4, 5, 6 } }; |
| |
| // CHECK-LABEL: define |
| // |
| // CHECK: load i32, i32* @n |
| // CHECK: call {{.*}} @llvm.umul.with.overflow.i64(i64 %[[N:.*]], i64 12) |
| // CHECK: %[[ELTS:.*]] = mul i64 %[[N]], 3 |
| // |
| // No cookie. |
| // CHECK-NOT: @llvm.uadd.with.overflow |
| // |
| // CHECK: %[[ALLOC:.*]] = call i8* @_Znam(i64 %{{.*}}) |
| // |
| // CHECK: %[[START_AS_T:.*]] = bitcast i8* %[[ALLOC]] to %[[T:.*]]* |
| // |
| // Explicit initializers: |
| // |
| // { 1, 2, 3 } |
| // |
| // CHECK: %[[T_0:.*]] = bitcast %[[T]]* %[[START_AS_T]] to [3 x %[[T]]]* |
| // |
| // CHECK: %[[T_0_0:.*]] = getelementptr inbounds [3 x %[[T]]], [3 x %[[T]]]* %[[T_0]], i64 0, i64 0 |
| // CHECK: %[[T_0_0_0:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_0_0]], i32 0, i32 0 |
| // CHECK: store i32 1, i32* %[[T_0_0_0]] |
| // CHECK: %[[T_0_1:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_0_0]], i64 1 |
| // CHECK: %[[T_0_1_0:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_0_1]], i32 0, i32 0 |
| // CHECK: store i32 2, i32* %[[T_0_1_0]] |
| // CHECK: %[[T_0_2:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_0_1]], i64 1 |
| // CHECK: %[[T_0_2_0:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_0_2]], i32 0, i32 0 |
| // CHECK: store i32 3, i32* %[[T_0_2_0]] |
| // |
| // { 4, 5, 6 } |
| // |
| // CHECK: %[[T_1:.*]] = getelementptr inbounds [3 x %[[T]]], [3 x %[[T]]]* %[[T_0]], i64 1 |
| // |
| // CHECK: %[[T_1_0:.*]] = getelementptr inbounds [3 x %[[T]]], [3 x %[[T]]]* %[[T_1]], i64 0, i64 0 |
| // CHECK: %[[T_1_0_0:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_1_0]], i32 0, i32 0 |
| // CHECK: store i32 4, i32* %[[T_1_0_0]] |
| // CHECK: %[[T_1_1:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_1_0]], i64 1 |
| // CHECK: %[[T_1_1_0:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_1_1]], i32 0, i32 0 |
| // CHECK: store i32 5, i32* %[[T_1_1_0]] |
| // CHECK: %[[T_1_2:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_1_1]], i64 1 |
| // CHECK: %[[T_1_2_0:.*]] = getelementptr inbounds %[[T]], %[[T]]* %[[T_1_2]], i32 0, i32 0 |
| // CHECK: store i32 6, i32* %[[T_1_2_0]] |
| // |
| // And the rest gets memset to 0. |
| // |
| // CHECK: %[[T_2:.*]] = getelementptr inbounds [3 x %[[T]]], [3 x %[[T]]]* %[[T_1]], i64 1 |
| // CHECK: %[[T_2_AS_T:.*]] = bitcast [3 x %[[T]]]* %[[T_2]] to %[[T]]* |
| // |
| // CHECK: %[[SIZE:.*]] = sub i64 %{{.*}}, 24 |
| // CHECK: %[[REST:.*]] = bitcast %[[T]]* %[[T_2_AS_T]] to i8* |
| // CHECK: call void @llvm.memset.p0i8.i64(i8* %[[REST]], i8 0, i64 %[[SIZE]], i32 4, i1 false) |
| // |
| // CHECK: } |
| |