| 1 | // RUN: %clang_cc1 -emit-llvm %s -o - -triple=i386-pc-win32 | FileCheck %s |
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| 2 | |
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| 3 | struct ClassWithoutDtor { |
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| 4 | char x; |
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| 5 | }; |
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| 6 | |
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| 7 | void check_array_no_cookies() { |
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| 8 | // CHECK: define dso_local void @"?check_array_no_cookies@@YAXXZ"() [[NUW:#[0-9]+]] |
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| 9 | |
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| 10 | // CHECK: call i8* @"??_U@YAPAXI@Z"(i32 42) |
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| 11 | ClassWithoutDtor *array = new ClassWithoutDtor[42]; |
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| 12 | |
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| 13 | // CHECK: call void @"??_V@YAXPAX@Z"( |
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| 14 | delete [] array; |
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| 15 | |
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| 16 | } |
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| 17 | |
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| 18 | struct ClassWithDtor { |
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| 19 | char x; |
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| 20 | ~ClassWithDtor() {} |
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| 21 | }; |
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| 22 | |
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| 23 | void check_array_cookies_simple() { |
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| 24 | // CHECK: define {{.*}} @"?check_array_cookies_simple@@YAXXZ"() |
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| 25 | |
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| 26 | ClassWithDtor *array = new ClassWithDtor[42]; |
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| 27 | // CHECK: [[ALLOCATED:%.*]] = call i8* @"??_U@YAPAXI@Z"(i32 46) |
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| 28 | // 46 = 42 + size of cookie (4) |
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| 29 | // CHECK: [[COOKIE:%.*]] = bitcast i8* [[ALLOCATED]] to i32* |
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| 30 | // CHECK: store i32 42, i32* [[COOKIE]] |
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| 31 | // CHECK: [[ARRAY:%.*]] = getelementptr inbounds i8, i8* [[ALLOCATED]], i32 4 |
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| 32 | // CHECK: bitcast i8* [[ARRAY]] to [[CLASS:%.*]]* |
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| 33 | |
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| 34 | delete [] array; |
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| 35 | // CHECK: [[ARRAY_AS_CHAR:%.*]] = bitcast [[CLASS]]* {{%.*}} to i8* |
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| 36 | // CHECK: getelementptr inbounds i8, i8* [[ARRAY_AS_CHAR]], i32 -4 |
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| 37 | } |
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| 38 | |
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| 39 | struct __attribute__((aligned(8))) ClassWithAlignment { |
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| 40 | // FIXME: replace __attribute__((aligned(8))) with __declspec(align(8)) once |
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| 41 | // http://llvm.org/bugs/show_bug.cgi?id=12631 is fixed. |
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| 42 | int *x, *y; |
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| 43 | ~ClassWithAlignment() {} |
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| 44 | }; |
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| 45 | |
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| 46 | void check_array_cookies_aligned() { |
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| 47 | // CHECK: define {{.*}} @"?check_array_cookies_aligned@@YAXXZ"() |
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| 48 | ClassWithAlignment *array = new ClassWithAlignment[42]; |
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| 49 | // CHECK: [[ALLOCATED:%.*]] = call i8* @"??_U@YAPAXI@Z"(i32 344) |
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| 50 | // 344 = 42*8 + size of cookie (8, due to alignment) |
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| 51 | // CHECK: [[COOKIE:%.*]] = bitcast i8* [[ALLOCATED]] to i32* |
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| 52 | // CHECK: store i32 42, i32* [[COOKIE]] |
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| 53 | // CHECK: [[ARRAY:%.*]] = getelementptr inbounds i8, i8* [[ALLOCATED]], i32 8 |
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| 54 | // CHECK: bitcast i8* [[ARRAY]] to [[CLASS:%.*]]* |
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| 55 | |
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| 56 | delete [] array; |
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| 57 | // CHECK: [[ARRAY_AS_CHAR:%.*]] = bitcast [[CLASS]]* |
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| 58 | // CHECK: getelementptr inbounds i8, i8* [[ARRAY_AS_CHAR]], i32 -8 |
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| 59 | } |
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| 60 | |
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| 61 | namespace PR23990 { |
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| 62 | struct S { |
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| 63 | char x[42]; |
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| 64 | void operator delete[](void *p, __SIZE_TYPE__); |
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| 65 | // CHECK-LABEL: define dso_local void @"?delete_s@PR23990@@YAXPAUS@1@@Z"( |
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| 66 | // CHECK: call void @"??_VS@PR23990@@SAXPAXI@Z"(i8* {{.*}}, i32 42) |
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| 67 | }; |
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| 68 | void delete_s(S *s) { delete[] s; } |
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| 69 | } |
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| 70 | |
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| 71 | // CHECK: attributes [[NUW]] = { noinline nounwind{{.*}} } |
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| 72 | |
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