| // RUN: %clang_cc1 -emit-llvm %s -o - -triple=i386-pc-win32 | FileCheck %s |
| |
| struct ClassWithoutDtor { |
| char x; |
| }; |
| |
| void check_array_no_cookies() { |
| // CHECK: define void @"\01?check_array_no_cookies@@YAXXZ"() [[NUW:#[0-9]+]] |
| |
| // CHECK: call noalias i8* @"\01??_U@YAPAXI@Z"(i32 42) |
| ClassWithoutDtor *array = new ClassWithoutDtor[42]; |
| |
| // CHECK: call void @"\01??_V@YAXPAX@Z"( |
| delete [] array; |
| |
| } |
| |
| struct ClassWithDtor { |
| char x; |
| ~ClassWithDtor() {} |
| }; |
| |
| void check_array_cookies_simple() { |
| // CHECK: define {{.*}} @"\01?check_array_cookies_simple@@YAXXZ"() |
| |
| ClassWithDtor *array = new ClassWithDtor[42]; |
| // CHECK: [[ALLOCATED:%.*]] = call noalias i8* @"\01??_U@YAPAXI@Z"(i32 46) |
| // 46 = 42 + size of cookie (4) |
| // CHECK: [[COOKIE:%.*]] = bitcast i8* [[ALLOCATED]] to i32* |
| // CHECK: store i32 42, i32* [[COOKIE]] |
| // CHECK: [[ARRAY:%.*]] = getelementptr inbounds i8, i8* [[ALLOCATED]], i32 4 |
| // CHECK: bitcast i8* [[ARRAY]] to [[CLASS:%.*]]* |
| |
| delete [] array; |
| // CHECK: [[ARRAY_AS_CHAR:%.*]] = bitcast [[CLASS]]* {{%.*}} to i8* |
| // CHECK: getelementptr inbounds i8, i8* [[ARRAY_AS_CHAR]], i32 -4 |
| } |
| |
| struct __attribute__((aligned(8))) ClassWithAlignment { |
| // FIXME: replace __attribute__((aligned(8))) with __declspec(align(8)) once |
| // http://llvm.org/bugs/show_bug.cgi?id=12631 is fixed. |
| int *x, *y; |
| ~ClassWithAlignment() {} |
| }; |
| |
| void check_array_cookies_aligned() { |
| // CHECK: define {{.*}} @"\01?check_array_cookies_aligned@@YAXXZ"() |
| ClassWithAlignment *array = new ClassWithAlignment[42]; |
| // CHECK: [[ALLOCATED:%.*]] = call noalias i8* @"\01??_U@YAPAXI@Z"(i32 344) |
| // 344 = 42*8 + size of cookie (8, due to alignment) |
| // CHECK: [[COOKIE:%.*]] = bitcast i8* [[ALLOCATED]] to i32* |
| // CHECK: store i32 42, i32* [[COOKIE]] |
| // CHECK: [[ARRAY:%.*]] = getelementptr inbounds i8, i8* [[ALLOCATED]], i32 8 |
| // CHECK: bitcast i8* [[ARRAY]] to [[CLASS:%.*]]* |
| |
| delete [] array; |
| // CHECK: [[ARRAY_AS_CHAR:%.*]] = bitcast [[CLASS]]* |
| // CHECK: getelementptr inbounds i8, i8* [[ARRAY_AS_CHAR]], i32 -8 |
| } |
| |
| namespace PR23990 { |
| struct S { |
| char x[42]; |
| void operator delete[](void *p, __SIZE_TYPE__); |
| // CHECK-LABEL: define void @"\01?delete_s@PR23990@@YAXPAUS@1@@Z"( |
| // CHECK: call void @"\01??_VS@PR23990@@SAXPAXI@Z"(i8* {{.*}}, i32 42) |
| }; |
| void delete_s(S *s) { delete[] s; } |
| } |
| |
| // CHECK: attributes [[NUW]] = { nounwind{{.*}} } |