1 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 %s -emit-llvm -o - | FileCheck %s
2
t1(int * a)3 void t1(int *a) {
4 delete a;
5 }
6
7 struct S {
8 int a;
9 };
10
11 // POD types.
t3(S * s)12 void t3(S *s) {
13 delete s;
14 }
15
16 // Non-POD
17 struct T {
18 ~T();
19 int a;
20 };
21
22 // CHECK: define void @_Z2t4P1T
t4(T * t)23 void t4(T *t) {
24 // CHECK: call void @_ZN1TD1Ev
25 // CHECK-NEXT: bitcast
26 // CHECK-NEXT: call void @_ZdlPv
27 delete t;
28 }
29
30 // PR5102
31 template <typename T>
32 class A {
33 public: operator T *() const;
34 };
35
f()36 void f() {
37 A<char*> a;
38
39 delete a;
40 }
41
42 namespace test0 {
43 struct A {
44 void *operator new(__SIZE_TYPE__ sz);
operator deletetest0::A45 void operator delete(void *p) { ::operator delete(p); }
~Atest0::A46 ~A() {}
47 };
48
49 // CHECK: define void @_ZN5test04testEPNS_1AE(
test(A * a)50 void test(A *a) {
51 // CHECK: call void @_ZN5test01AD1Ev
52 // CHECK-NEXT: bitcast
53 // CHECK-NEXT: call void @_ZN5test01AdlEPv
54 delete a;
55 }
56
57 // CHECK: define linkonce_odr void @_ZN5test01AD1Ev(%"struct.test0::A"* %this) unnamed_addr
58 // CHECK: define linkonce_odr void @_ZN5test01AdlEPv
59 }
60
61 namespace test1 {
62 struct A {
63 int x;
64 ~A();
65 };
66
67 // CHECK: define void @_ZN5test14testEPA10_A20_NS_1AE(
test(A (* arr)[10][20])68 void test(A (*arr)[10][20]) {
69 delete [] arr;
70 // CHECK: icmp eq [10 x [20 x [[A:%.*]]]]* [[PTR:%.*]], null
71 // CHECK-NEXT: br i1
72
73 // CHECK: [[BEGIN:%.*]] = getelementptr inbounds [10 x [20 x [[A]]]]* [[PTR]], i32 0, i32 0, i32 0
74 // CHECK-NEXT: [[T0:%.*]] = bitcast [[A]]* [[BEGIN]] to i8*
75 // CHECK-NEXT: [[ALLOC:%.*]] = getelementptr inbounds i8* [[T0]], i64 -8
76 // CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[ALLOC]] to i64*
77 // CHECK-NEXT: [[COUNT:%.*]] = load i64* [[T1]]
78 // CHECK: [[END:%.*]] = getelementptr inbounds [[A]]* [[BEGIN]], i64 [[COUNT]]
79 // CHECK-NEXT: [[ISEMPTY:%.*]] = icmp eq [[A]]* [[BEGIN]], [[END]]
80 // CHECK-NEXT: br i1 [[ISEMPTY]],
81 // CHECK: [[PAST:%.*]] = phi [[A]]* [ [[END]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ]
82 // CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds [[A]]* [[PAST]], i64 -1
83 // CHECK-NEXT: call void @_ZN5test11AD1Ev([[A]]* [[CUR]])
84 // CHECK-NEXT: [[ISDONE:%.*]] = icmp eq [[A]]* [[CUR]], [[BEGIN]]
85 // CHECK-NEXT: br i1 [[ISDONE]]
86 // CHECK: call void @_ZdaPv(i8* [[ALLOC]])
87 }
88 }
89
90 namespace test2 {
91 // CHECK: define void @_ZN5test21fEPb
f(bool * b)92 void f(bool *b) {
93 // CHECK: call void @_ZdlPv(i8*
94 delete b;
95 // CHECK: call void @_ZdaPv(i8*
96 delete [] b;
97 }
98 }
99
100 namespace test3 {
f(int a[10][20])101 void f(int a[10][20]) {
102 // CHECK: call void @_ZdaPv(i8*
103 delete a;
104 }
105 }
106
107 namespace test4 {
108 // PR10341: ::delete with a virtual destructor
109 struct X {
110 virtual ~X();
111 void operator delete (void *);
112 };
113
114 // CHECK: define void @_ZN5test421global_delete_virtualEPNS_1XE
global_delete_virtual(X * xp)115 void global_delete_virtual(X *xp) {
116 // CHECK: [[VTABLE:%.*]] = load void ([[X:%.*]])***
117 // CHECK-NEXT: [[VFN:%.*]] = getelementptr inbounds void ([[X]])** [[VTABLE]], i64 0
118 // CHECK-NEXT: [[VFNPTR:%.*]] = load void ([[X]])** [[VFN]]
119 // CHECK-NEXT: call void [[VFNPTR]]([[X]] [[OBJ:%.*]])
120 // CHECK-NEXT: [[OBJVOID:%.*]] = bitcast [[X]] [[OBJ]] to i8*
121 // CHECK-NEXT: call void @_ZdlPv(i8* [[OBJVOID]]) nounwind
122 ::delete xp;
123 }
124 }
125
126 namespace test5 {
127 struct Incomplete;
128 // CHECK: define void @_ZN5test523array_delete_incompleteEPNS_10IncompleteES1_
array_delete_incomplete(Incomplete * p1,Incomplete * p2)129 void array_delete_incomplete(Incomplete *p1, Incomplete *p2) {
130 // CHECK: call void @_ZdlPv
131 delete p1;
132 // CHECK: call void @_ZdaPv
133 delete [] p2;
134 }
135 }
136