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, 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, 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, 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, i8* [[ARRAY_AS_CHAR]], i64 -8 59} 60 61// CHECK: attributes [[NUW]] = { nounwind{{.*}} } 62