1 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 %s -emit-llvm -o - | FileCheck %s
2 
3 void t1(int *a) {
4   delete a;
5 }
6 
7 struct S {
8   int a;
9 };
10 
11 // POD types.
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
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   operator T *() const;
34 };
35 
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);
45     void operator delete(void *p) { ::operator delete(p); }
46     ~A() {}
47   };
48 
49   // CHECK: define void @_ZN5test04testEPNS_1AE(
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(
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-NEXT: [[ISZERO:%.*]] = icmp eq i64 [[COUNT]], 0
79     // CHECK-NEXT: br i1 [[ISZERO]],
80     // CHECK:      [[END:%.*]] = getelementptr inbounds [[A]]* [[BEGIN]], i64 [[COUNT]]
81     // CHECK-NEXT: br label
82     // CHECK:      [[PAST:%.*]] = phi [[A]]* [ [[END]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ]
83     // CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds [[A]]* [[PAST]], i64 -1
84     // CHECK-NEXT: call void @_ZN5test11AD1Ev([[A]]* [[CUR]])
85     // CHECK-NEXT: [[ISDONE:%.*]] = icmp eq [[A]]* [[CUR]], [[BEGIN]]
86     // CHECK-NEXT: br i1 [[ISDONE]]
87     // CHECK:      call void @_ZdaPv(i8* [[ALLOC]])
88   }
89 }
90 
91 namespace test2 {
92   // CHECK: define void @_ZN5test21fEPb
93   void f(bool *b) {
94     // CHECK: call void @_ZdlPv(i8*
95     delete b;
96     // CHECK: call void @_ZdaPv(i8*
97     delete [] b;
98   }
99 }
100 
101 namespace test3 {
102   void f(int a[10][20]) {
103     // CHECK: call void @_ZdaPv(i8*
104     delete a;
105   }
106 }
107 
108 namespace test4 {
109   // PR10341: ::delete with a virtual destructor
110   struct X {
111     virtual ~X();
112     void operator delete (void *);
113   };
114 
115   // CHECK: define void @_ZN5test421global_delete_virtualEPNS_1XE
116   void global_delete_virtual(X *xp) {
117     // CHECK: [[VTABLE:%.*]] = load void ([[X:%.*]])***
118     // CHECK-NEXT: [[VFN:%.*]] = getelementptr inbounds void ([[X]])** [[VTABLE]], i64 0
119     // CHECK-NEXT: [[VFNPTR:%.*]] = load void ([[X]])** [[VFN]]
120     // CHECK-NEXT: call void [[VFNPTR]]([[X]] [[OBJ:%.*]])
121     // CHECK-NEXT: [[OBJVOID:%.*]] = bitcast [[X]] [[OBJ]] to i8*
122     // CHECK-NEXT: call void @_ZdlPv(i8* [[OBJVOID]]) nounwind
123     ::delete xp;
124   }
125 }
126