1// RUN: %clang_cc1 -emit-llvm %s -o - -triple=i386-pc-win32 | FileCheck %s
2
3struct ClassWithoutDtor {
4  char x;
5};
6
7void check_array_no_cookies() {
8// CHECK: define void @"\01?check_array_no_cookies@@YAXXZ"() [[NUW:#[0-9]+]]
9
10// CHECK: call noalias i8* @"\01??_U@YAPAXI@Z"(i32 42)
11  ClassWithoutDtor *array = new ClassWithoutDtor[42];
12
13// CHECK: call void @"\01??_V@YAXPAX@Z"(
14  delete [] array;
15
16}
17
18struct ClassWithDtor {
19  char x;
20  ~ClassWithDtor() {}
21};
22
23void check_array_cookies_simple() {
24// CHECK: define {{.*}} @"\01?check_array_cookies_simple@@YAXXZ"()
25
26  ClassWithDtor *array = new ClassWithDtor[42];
27// CHECK: [[ALLOCATED:%.*]] = call noalias i8* @"\01??_U@YAPAXI@Z"(i32 46)
28// 46 = 42 + size of cookie (4)
29// CHECK: [[COOKIE:%.*]] = bitcast i8* [[ALLOCATED]] to i32*
30// CHECK: store i32 42, i32* [[COOKIE]]
31// CHECK: [[ARRAY:%.*]] = getelementptr inbounds i8* [[ALLOCATED]], i64 4
32// CHECK: bitcast i8* [[ARRAY]] to [[CLASS:%.*]]*
33
34  delete [] array;
35// CHECK: [[ARRAY_AS_CHAR:%.*]] = bitcast [[CLASS]]* {{%.*}} to i8*
36// CHECK: getelementptr inbounds i8* [[ARRAY_AS_CHAR]], i64 -4
37}
38
39struct __attribute__((aligned(8))) ClassWithAlignment {
40  // FIXME: replace __attribute__((aligned(8))) with __declspec(align(8)) once
41  // http://llvm.org/bugs/show_bug.cgi?id=12631 is fixed.
42  int *x, *y;
43  ~ClassWithAlignment() {}
44};
45
46void check_array_cookies_aligned() {
47// CHECK: define {{.*}} @"\01?check_array_cookies_aligned@@YAXXZ"()
48  ClassWithAlignment *array = new ClassWithAlignment[42];
49// CHECK: [[ALLOCATED:%.*]] = call noalias i8* @"\01??_U@YAPAXI@Z"(i32 344)
50//   344 = 42*8 + size of cookie (8, due to alignment)
51// CHECK: [[COOKIE:%.*]] = bitcast i8* [[ALLOCATED]] to i32*
52// CHECK: store i32 42, i32* [[COOKIE]]
53// CHECK: [[ARRAY:%.*]] = getelementptr inbounds i8* [[ALLOCATED]], i64 8
54// CHECK: bitcast i8* [[ARRAY]] to [[CLASS:%.*]]*
55
56  delete [] array;
57// CHECK: [[ARRAY_AS_CHAR:%.*]] = bitcast [[CLASS]]*
58// CHECK: getelementptr inbounds i8* [[ARRAY_AS_CHAR]], i64 -8
59}
60
61// CHECK: attributes [[NUW]] = { nounwind{{.*}} }
62