delete-two-arg.cpp revision 6ec278d1a354517e20f13a877481453ee7940c78 
1// RUN: %clang_cc1 -triple i686-pc-linux-gnu %s -o - -emit-llvm -verify | FileCheck %s
2
3typedef __typeof(sizeof(int)) size_t;
4
5namespace test1 {
6  struct A { void operator delete(void*,size_t); int x; };
7
8  // CHECK: define void @_ZN5test11aEPNS_1AE(
9  void a(A *x) {
10    // CHECK:      load
11    // CHECK-NEXT: icmp eq {{.*}}, null
12    // CHECK-NEXT: br i1
13    // CHECK:      call void @_ZN5test11AdlEPvj(i8* %{{.*}}, i32 4)
14    delete x;
15  }
16}
17
18// Check that we make cookies for the two-arg delete even when using
19// the global allocator and deallocator.
20namespace test2 {
21  struct A {
22    int x;
23    void *operator new[](size_t);
24    void operator delete[](void *, size_t);
25  };
26
27  // CHECK: define [[A:%.*]]* @_ZN5test24testEv()
28  A *test() {
29    // CHECK:      [[NEW:%.*]] = call noalias i8* @_Znaj(i32 44)
30    // CHECK-NEXT: [[T0:%.*]] = bitcast i8* [[NEW]] to i32*
31    // CHECK-NEXT: store i32 10, i32* [[T0]]
32    // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8* [[NEW]], i64 4
33    // CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to [[A]]*
34    // CHECK-NEXT: ret [[A]]* [[T2]]
35    return ::new A[10];
36  }
37
38  // CHECK: define void @_ZN5test24testEPNS_1AE(
39  void test(A *p) {
40    // CHECK:      [[P:%.*]] = alloca [[A]]*, align 4
41    // CHECK-NEXT: store [[A]]* {{%.*}}, [[A]]** [[P]], align 4
42    // CHECK-NEXT: [[T0:%.*]] = load [[A]]** [[P]], align 4
43    // CHECK-NEXT: [[T1:%.*]] = icmp eq [[A]]* [[T0]], null
44    // CHECK-NEXT: br i1 [[T1]],
45    // CHECK:      [[T2:%.*]] = bitcast [[A]]* [[T0]] to i8*
46    // CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8* [[T2]], i64 -4
47    // CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i32*
48    // CHECK-NEXT: [[T5:%.*]] = load i32* [[T4]]
49    // CHECK-NEXT: call void @_ZdaPv(i8* [[T3]])
50    // CHECK-NEXT: br label
51    ::delete[] p;
52  }
53}
54
55// rdar://problem/8913519
56namespace test3 {
57  struct A {
58    int x;
59    void operator delete[](void *, size_t);
60  };
61  struct B : A {};
62
63  // CHECK: define void @_ZN5test34testEv()
64  void test() {
65    // CHECK:      call noalias i8* @_Znaj(i32 24)
66    // CHECK-NEXT: bitcast
67    // CHECK-NEXT: store i32 5
68    (void) new B[5];
69  }
70}
71