1 // RUN: %clang_cc1 %s -verify -fsyntax-only -triple=i686-linux-gnu
2
3 // Basic parsing/Sema tests for __c11_atomic_*
4
5 typedef enum memory_order {
6 memory_order_relaxed, memory_order_consume, memory_order_acquire,
7 memory_order_release, memory_order_acq_rel, memory_order_seq_cst
8 } memory_order;
9
10 struct S { char c[3]; };
11
12 _Static_assert(__GCC_ATOMIC_BOOL_LOCK_FREE == 2, "");
13 _Static_assert(__GCC_ATOMIC_CHAR_LOCK_FREE == 2, "");
14 _Static_assert(__GCC_ATOMIC_CHAR16_T_LOCK_FREE == 2, "");
15 _Static_assert(__GCC_ATOMIC_CHAR32_T_LOCK_FREE == 2, "");
16 _Static_assert(__GCC_ATOMIC_WCHAR_T_LOCK_FREE == 2, "");
17 _Static_assert(__GCC_ATOMIC_SHORT_LOCK_FREE == 2, "");
18 _Static_assert(__GCC_ATOMIC_INT_LOCK_FREE == 2, "");
19 _Static_assert(__GCC_ATOMIC_LONG_LOCK_FREE == 2, "");
20 _Static_assert(__GCC_ATOMIC_LLONG_LOCK_FREE == 1, "");
21 _Static_assert(__GCC_ATOMIC_POINTER_LOCK_FREE == 2, "");
22
23 _Static_assert(__c11_atomic_is_lock_free(1), "");
24 _Static_assert(__c11_atomic_is_lock_free(2), "");
25 _Static_assert(__c11_atomic_is_lock_free(3), ""); // expected-error {{not an integral constant expression}}
26 _Static_assert(__c11_atomic_is_lock_free(4), "");
27 _Static_assert(__c11_atomic_is_lock_free(8), "");
28 _Static_assert(__c11_atomic_is_lock_free(16), ""); // expected-error {{not an integral constant expression}}
29 _Static_assert(__c11_atomic_is_lock_free(17), ""); // expected-error {{not an integral constant expression}}
30
31 _Static_assert(__atomic_is_lock_free(1, 0), "");
32 _Static_assert(__atomic_is_lock_free(2, 0), "");
33 _Static_assert(__atomic_is_lock_free(3, 0), ""); // expected-error {{not an integral constant expression}}
34 _Static_assert(__atomic_is_lock_free(4, 0), "");
35 _Static_assert(__atomic_is_lock_free(8, 0), "");
36 _Static_assert(__atomic_is_lock_free(16, 0), ""); // expected-error {{not an integral constant expression}}
37 _Static_assert(__atomic_is_lock_free(17, 0), ""); // expected-error {{not an integral constant expression}}
38
39 char i8;
40 short i16;
41 int i32;
42 int __attribute__((vector_size(8))) i64;
43 struct Incomplete *incomplete;
44
45 _Static_assert(__atomic_is_lock_free(1, &i8), "");
46 _Static_assert(__atomic_is_lock_free(1, &i64), "");
47 _Static_assert(__atomic_is_lock_free(2, &i8), ""); // expected-error {{not an integral constant expression}}
48 _Static_assert(__atomic_is_lock_free(2, &i16), "");
49 _Static_assert(__atomic_is_lock_free(2, &i64), "");
50 _Static_assert(__atomic_is_lock_free(4, &i16), ""); // expected-error {{not an integral constant expression}}
51 _Static_assert(__atomic_is_lock_free(4, &i32), "");
52 _Static_assert(__atomic_is_lock_free(4, &i64), "");
53 _Static_assert(__atomic_is_lock_free(8, &i32), ""); // expected-error {{not an integral constant expression}}
54 _Static_assert(__atomic_is_lock_free(8, &i64), "");
55
56 _Static_assert(__atomic_always_lock_free(1, 0), "");
57 _Static_assert(__atomic_always_lock_free(2, 0), "");
58 _Static_assert(!__atomic_always_lock_free(3, 0), "");
59 _Static_assert(__atomic_always_lock_free(4, 0), "");
60 _Static_assert(__atomic_always_lock_free(8, 0), "");
61 _Static_assert(!__atomic_always_lock_free(16, 0), "");
62 _Static_assert(!__atomic_always_lock_free(17, 0), "");
63
64 _Static_assert(__atomic_always_lock_free(1, incomplete), "");
65 _Static_assert(!__atomic_always_lock_free(2, incomplete), "");
66 _Static_assert(!__atomic_always_lock_free(4, incomplete), "");
67
68 _Static_assert(__atomic_always_lock_free(1, &i8), "");
69 _Static_assert(__atomic_always_lock_free(1, &i64), "");
70 _Static_assert(!__atomic_always_lock_free(2, &i8), "");
71 _Static_assert(__atomic_always_lock_free(2, &i16), "");
72 _Static_assert(__atomic_always_lock_free(2, &i64), "");
73 _Static_assert(!__atomic_always_lock_free(4, &i16), "");
74 _Static_assert(__atomic_always_lock_free(4, &i32), "");
75 _Static_assert(__atomic_always_lock_free(4, &i64), "");
76 _Static_assert(!__atomic_always_lock_free(8, &i32), "");
77 _Static_assert(__atomic_always_lock_free(8, &i64), "");
78
f(_Atomic (int)* i,_Atomic (int *)* p,_Atomic (float)* d,int * I,int ** P,float * D,struct S * s1,struct S * s2)79 void f(_Atomic(int) *i, _Atomic(int*) *p, _Atomic(float) *d,
80 int *I, int **P, float *D, struct S *s1, struct S *s2) {
81 __c11_atomic_init(I, 5); // expected-error {{pointer to _Atomic}}
82 __c11_atomic_load(0); // expected-error {{too few arguments to function}}
83 __c11_atomic_load(0,0,0); // expected-error {{too many arguments to function}}
84 __c11_atomic_store(0,0,0); // expected-error {{first argument to atomic builtin must be a pointer}}
85 __c11_atomic_store((int*)0,0,0); // expected-error {{first argument to atomic operation must be a pointer to _Atomic}}
86
87 __c11_atomic_load(i, memory_order_seq_cst);
88 __c11_atomic_load(p, memory_order_seq_cst);
89 __c11_atomic_load(d, memory_order_seq_cst);
90
91 int load_n_1 = __atomic_load_n(I, memory_order_relaxed);
92 int *load_n_2 = __atomic_load_n(P, memory_order_relaxed);
93 float load_n_3 = __atomic_load_n(D, memory_order_relaxed); // expected-error {{must be a pointer to integer or pointer}}
94 __atomic_load_n(s1, memory_order_relaxed); // expected-error {{must be a pointer to integer or pointer}}
95
96 __atomic_load(i, I, memory_order_relaxed); // expected-error {{must be a pointer to a trivially-copyable type}}
97 __atomic_load(I, i, memory_order_relaxed); // expected-warning {{passing '_Atomic(int) *' to parameter of type 'int *'}}
98 __atomic_load(I, *P, memory_order_relaxed);
99 __atomic_load(I, *P, memory_order_relaxed, 42); // expected-error {{too many arguments}}
100 (int)__atomic_load(I, I, memory_order_seq_cst); // expected-error {{operand of type 'void'}}
101 __atomic_load(s1, s2, memory_order_acquire);
102
103 __c11_atomic_store(i, 1, memory_order_seq_cst);
104 __c11_atomic_store(p, 1, memory_order_seq_cst); // expected-warning {{incompatible integer to pointer conversion}}
105 (int)__c11_atomic_store(d, 1, memory_order_seq_cst); // expected-error {{operand of type 'void'}}
106
107 __atomic_store_n(I, 4, memory_order_release);
108 __atomic_store_n(I, 4.0, memory_order_release);
109 __atomic_store_n(I, P, memory_order_release); // expected-warning {{parameter of type 'int'}}
110 __atomic_store_n(i, 1, memory_order_release); // expected-error {{must be a pointer to integer or pointer}}
111 __atomic_store_n(s1, *s2, memory_order_release); // expected-error {{must be a pointer to integer or pointer}}
112
113 __atomic_store(I, *P, memory_order_release);
114 __atomic_store(s1, s2, memory_order_release);
115 __atomic_store(i, I, memory_order_release); // expected-error {{trivially-copyable}}
116
117 int exchange_1 = __c11_atomic_exchange(i, 1, memory_order_seq_cst);
118 int exchange_2 = __c11_atomic_exchange(I, 1, memory_order_seq_cst); // expected-error {{must be a pointer to _Atomic}}
119 int exchange_3 = __atomic_exchange_n(i, 1, memory_order_seq_cst); // expected-error {{must be a pointer to integer or pointer}}
120 int exchange_4 = __atomic_exchange_n(I, 1, memory_order_seq_cst);
121
122 __atomic_exchange(s1, s2, s2, memory_order_seq_cst);
123 __atomic_exchange(s1, I, P, memory_order_seq_cst); // expected-warning 2{{parameter of type 'struct S *'}}
124 (int)__atomic_exchange(s1, s2, s2, memory_order_seq_cst); // expected-error {{operand of type 'void'}}
125
126 __c11_atomic_fetch_add(i, 1, memory_order_seq_cst);
127 __c11_atomic_fetch_add(p, 1, memory_order_seq_cst);
128 __c11_atomic_fetch_add(d, 1, memory_order_seq_cst); // expected-error {{must be a pointer to atomic integer or pointer}}
129
130 __atomic_fetch_add(i, 3, memory_order_seq_cst); // expected-error {{pointer to integer or pointer}}
131 __atomic_fetch_sub(I, 3, memory_order_seq_cst);
132 __atomic_fetch_sub(P, 3, memory_order_seq_cst);
133 __atomic_fetch_sub(D, 3, memory_order_seq_cst); // expected-error {{must be a pointer to integer or pointer}}
134 __atomic_fetch_sub(s1, 3, memory_order_seq_cst); // expected-error {{must be a pointer to integer or pointer}}
135
136 __c11_atomic_fetch_and(i, 1, memory_order_seq_cst);
137 __c11_atomic_fetch_and(p, 1, memory_order_seq_cst); // expected-error {{must be a pointer to atomic integer}}
138 __c11_atomic_fetch_and(d, 1, memory_order_seq_cst); // expected-error {{must be a pointer to atomic integer}}
139
140 __atomic_fetch_and(i, 3, memory_order_seq_cst); // expected-error {{pointer to integer}}
141 __atomic_fetch_or(I, 3, memory_order_seq_cst);
142 __atomic_fetch_xor(P, 3, memory_order_seq_cst); // expected-error {{must be a pointer to integer}}
143 __atomic_fetch_or(D, 3, memory_order_seq_cst); // expected-error {{must be a pointer to integer}}
144 __atomic_fetch_and(s1, 3, memory_order_seq_cst); // expected-error {{must be a pointer to integer}}
145
146 _Bool cmpexch_1 = __c11_atomic_compare_exchange_strong(i, 0, 1, memory_order_seq_cst, memory_order_seq_cst);
147 _Bool cmpexch_2 = __c11_atomic_compare_exchange_strong(p, 0, (int*)1, memory_order_seq_cst, memory_order_seq_cst);
148 _Bool cmpexch_3 = __c11_atomic_compare_exchange_strong(d, (int*)0, 1, memory_order_seq_cst, memory_order_seq_cst); // expected-warning {{incompatible pointer types}}
149
150 _Bool cmpexch_4 = __atomic_compare_exchange_n(I, I, 5, 1, memory_order_seq_cst, memory_order_seq_cst);
151 _Bool cmpexch_5 = __atomic_compare_exchange_n(I, P, 5, 0, memory_order_seq_cst, memory_order_seq_cst); // expected-warning {{; dereference with *}}
152 _Bool cmpexch_6 = __atomic_compare_exchange_n(I, I, P, 0, memory_order_seq_cst, memory_order_seq_cst); // expected-warning {{passing 'int **' to parameter of type 'int'}}
153
154 _Bool cmpexch_7 = __atomic_compare_exchange(I, I, 5, 1, memory_order_seq_cst, memory_order_seq_cst); // expected-warning {{passing 'int' to parameter of type 'int *'}}
155 _Bool cmpexch_8 = __atomic_compare_exchange(I, P, I, 0, memory_order_seq_cst, memory_order_seq_cst); // expected-warning {{; dereference with *}}
156 _Bool cmpexch_9 = __atomic_compare_exchange(I, I, I, 0, memory_order_seq_cst, memory_order_seq_cst);
157
158 const volatile int flag_k = 0;
159 volatile int flag = 0;
160 (void)(int)__atomic_test_and_set(&flag_k, memory_order_seq_cst); // expected-warning {{passing 'const volatile int *' to parameter of type 'volatile void *'}}
161 (void)(int)__atomic_test_and_set(&flag, memory_order_seq_cst);
162 __atomic_clear(&flag_k, memory_order_seq_cst); // expected-warning {{passing 'const volatile int *' to parameter of type 'volatile void *'}}
163 __atomic_clear(&flag, memory_order_seq_cst);
164 (int)__atomic_clear(&flag, memory_order_seq_cst); // expected-error {{operand of type 'void'}}
165 }
166