1 | // RUN: %clang_cc1 -std=c++1z -fsyntax-only -verify %s |
2 | // RUN: %clang_cc1 -std=c++03 -fsyntax-only -verify %s |
3 | // RUN: %clang_cc1 -std=c++03 -faligned-allocation -fsyntax-only -verify %s |
4 | // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s |
5 | // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify -fsized-deallocation %s |
6 | |
7 | #if !__has_builtin(__builtin_operator_new) || !__has_builtin(__builtin_operator_delete) |
8 | #error builtins should always be available |
9 | #endif |
10 | |
11 | #if __has_builtin(__builtin_operator_new) != 201802L || \ |
12 | __has_builtin(__builtin_operator_delete) != 201802L |
13 | #error builtin should report updated value |
14 | #endif |
15 | |
16 | typedef __SIZE_TYPE__ size_t; |
17 | namespace std { |
18 | struct nothrow_t {}; |
19 | #if __cplusplus >= 201103L |
20 | enum class align_val_t : size_t {}; |
21 | #else |
22 | enum align_val_t { |
23 | // We can't force an underlying type when targeting windows. |
24 | # ifndef _WIN32 |
25 | __zero = 0, __max = (size_t)-1 |
26 | # endif |
27 | }; |
28 | #endif |
29 | } |
30 | std::nothrow_t nothrow; |
31 | |
32 | void *operator new(size_t); // expected-note 1+ {{candidate function}} |
33 | void operator delete(void *); // expected-note 1+ {{candidate function}} |
34 | |
35 | // Declare the reserved placement operators. |
36 | void *operator new(size_t, void*) throw(); // expected-note 1+ {{candidate function}} |
37 | void operator delete(void *, void *)throw(); // expected-note 1+ {{candidate function}} |
38 | void *operator new[](size_t, void*) throw(); |
39 | void operator delete[](void*, void*) throw(); |
40 | |
41 | // Declare the replaceable global allocation operators. |
42 | void *operator new(size_t, const std::nothrow_t &) throw(); // expected-note 1+ {{candidate function}} |
43 | void *operator new[](size_t, const std::nothrow_t &) throw(); |
44 | void operator delete(void *, const std::nothrow_t &)throw(); // expected-note 1+ {{candidate function}} |
45 | void operator delete[](void *, const std::nothrow_t &) throw(); |
46 | |
47 | // aligned allocation and deallocation functions. |
48 | void* operator new ( size_t count, std::align_val_t al); // expected-note 1+ {{candidate function}} |
49 | void operator delete(void *, std::align_val_t); // expected-note 1+ {{candidate}} |
50 | #ifndef __cpp_aligned_new |
51 | // expected-note@-3 1+ {{non-usual 'operator new' declared here}} |
52 | // expected-note@-3 1+ {{non-usual 'operator delete' declared here}} |
53 | #endif |
54 | void *operator new[](size_t count, std::align_val_t al); |
55 | void operator delete[](void*, std::align_val_t); |
56 | |
57 | void operator delete(void *, size_t); // expected-note 1+ {{candidate}} |
58 | #ifndef __cpp_sized_deallocation |
59 | // expected-note@-2 1+ {{non-usual 'operator delete' declared here}} |
60 | #endif |
61 | void operator delete[](void*, size_t); |
62 | |
63 | // Declare some other placemenet operators. |
64 | void *operator new(size_t, void*, bool) throw(); // expected-note 1+ {{candidate function}} |
65 | void *operator new[](size_t, void*, bool) throw(); |
66 | |
67 | void *NP = 0; |
68 | |
69 | void test_typo_in_args() { |
70 | __builtin_operator_new(DNE); // expected-error {{undeclared identifier 'DNE'}} |
71 | __builtin_operator_new(DNE, DNE2); // expected-error {{undeclared identifier 'DNE'}} expected-error {{'DNE2'}} |
72 | __builtin_operator_delete(DNE); // expected-error {{'DNE'}} |
73 | __builtin_operator_delete(DNE, DNE2); // expected-error {{'DNE'}} expected-error {{'DNE2'}} |
74 | } |
75 | |
76 | void test_arg_types() { |
77 | __builtin_operator_new(NP); // expected-error {{no matching function for call to 'operator new'}} |
78 | __builtin_operator_new(NP, std::align_val_t(0)); // expected-error {{no matching function for call to 'operator new'}}} |
79 | } |
80 | void test_return_type() { |
81 | int w = __builtin_operator_new(42); // expected-error {{cannot initialize a variable of type 'int' with an rvalue of type 'void *'}} |
82 | int y = __builtin_operator_delete(NP); // expected-error {{cannot initialize a variable of type 'int' with an rvalue of type 'void'}} |
83 | } |
84 | |
85 | void test_aligned_new() { |
86 | #ifdef __cpp_aligned_new |
87 | void *p = __builtin_operator_new(42, std::align_val_t(2)); |
88 | __builtin_operator_delete(p, std::align_val_t(2)); |
89 | #else |
90 | // FIXME: We've manually declared the aligned new/delete overloads, |
91 | // but LangOpts::AlignedAllocation is false. Should our overloads be considered |
92 | // usual allocation/deallocation functions? |
93 | void *p = __builtin_operator_new(42, std::align_val_t(2)); // expected-error {{call to '__builtin_operator_new' selects non-usual allocation function}} |
94 | __builtin_operator_delete(p, std::align_val_t(2)); // expected-error {{call to '__builtin_operator_delete' selects non-usual deallocation function}} |
95 | #endif |
96 | } |
97 | |
98 | void test_sized_delete() { |
99 | #ifdef __cpp_sized_deallocation |
100 | __builtin_operator_delete(NP, 4); |
101 | #else |
102 | __builtin_operator_delete(NP, 4); // expected-error {{call to '__builtin_operator_delete' selects non-usual deallocation function}} |
103 | #endif |
104 | } |
105 | |
106 | void *operator new(size_t, bool); // expected-note 1+ {{candidate}} |
107 | // expected-note@-1 {{non-usual 'operator new' declared here}} |
108 | void operator delete(void *, bool); // expected-note 1+ {{candidate}} |
109 | // expected-note@-1 {{non-usual 'operator delete' declared here}} |
110 | |
111 | void test_non_usual() { |
112 | __builtin_operator_new(42, true); // expected-error {{call to '__builtin_operator_new' selects non-usual allocation function}} |
113 | __builtin_operator_delete(NP, false); // expected-error {{call to '__builtin_operator_delete' selects non-usual deallocation function}} |
114 | } |
115 | |
116 | template <int ID> |
117 | struct Tag {}; |
118 | struct ConvertsToTypes { |
119 | operator std::align_val_t() const; |
120 | operator Tag<0>() const; |
121 | }; |
122 | |
123 | void *operator new(size_t, Tag<0>); // expected-note 0+ {{candidate}} |
124 | void operator delete(void *, Tag<0>); // expected-note 0+ {{candidate}} |
125 | |
126 | void test_ambiguous() { |
127 | #ifdef __cpp_aligned_new |
128 | ConvertsToTypes cvt; |
129 | __builtin_operator_new(42, cvt); // expected-error {{call to 'operator new' is ambiguous}} |
130 | __builtin_operator_delete(NP, cvt); // expected-error {{call to 'operator delete' is ambiguous}} |
131 | #endif |
132 | } |
133 | |
134 | void test_no_args() { |
135 | __builtin_operator_new(); // expected-error {{no matching function for call to 'operator new'}} |
136 | __builtin_operator_delete(); // expected-error {{no matching function for call to 'operator delete'}} |
137 | } |
138 | |
139 | void test_no_matching_fn() { |
140 | Tag<1> tag; |
141 | __builtin_operator_new(42, tag); // expected-error {{no matching function for call to 'operator new'}} |
142 | __builtin_operator_delete(NP, tag); // expected-error {{no matching function for call to 'operator delete'}} |
143 | } |
144 | |
145 | template <class Tp, class Up, class RetT> |
146 | void test_dependent_call(Tp new_arg, Up delete_arg, RetT) { |
147 | RetT ret = __builtin_operator_new(new_arg); |
148 | __builtin_operator_delete(delete_arg); |
149 | } |
150 | template void test_dependent_call(int, int*, void*); |
151 | |
152 | void test_const_attribute() { |
153 | __builtin_operator_new(42); // expected-warning {{ignoring return value of function declared with const attribute}} |
154 | #ifdef __cpp_aligned_new |
155 | __builtin_operator_new(42, std::align_val_t(8)); // expected-warning {{ignoring return value of function declared with const attribute}} |
156 | #endif |
157 | } |
158 | |