1 // RUN: %clang_cc1 %s -fsyntax-only -verify
2 
3 #define AS1 __attribute__((address_space(1)))
4 #define AS2 __attribute__((address_space(2), annotate("foo")))
5 #define AS_ND __attribute__((address_space(2), noderef))
6 
7 #define AS(i) address_space(i)
8 #define AS3 __attribute__((AS(3)))
9 #define AS5 __attribute__((address_space(5))) char
10 
normal_case()11 void normal_case() {
12   int *p = 0;
13   __attribute__((address_space(1))) int *q = p; // expected-error{{initializing '__attribute__((address_space(1))) int *' with an expression of type 'int *' changes address space of pointer}}
14 }
15 
cmp(AS1 char * x,AS2 char * y)16 char *cmp(AS1 char *x, AS2 char *y) {
17   return x < y ? x : y; // expected-error{{conditional operator with the second and third operands of type  ('AS1 char *' and 'AS2 char *') which are pointers to non-overlapping address spaces}}
18 }
19 
20 __attribute__((address_space(1))) char test_array[10];
test3(void)21 void test3(void) {
22   extern void test3_helper(char *p); // expected-note{{passing argument to parameter 'p' here}}
23   test3_helper(test_array);          // expected-error{{passing '__attribute__((address_space(1))) char *' to parameter of type 'char *' changes address space of pointer}}
24 }
25 
26 char AS2 *test4_array;
test4(void)27 void test4(void) {
28   extern void test3_helper(char *p); // expected-note{{passing argument to parameter 'p' here}}
29   test3_helper(test4_array);         // expected-error{{passing 'AS2 char *' to parameter of type 'char *' changes address space of pointer}}
30 }
31 
func()32 void func() {
33   char AS1 *x;
34   char AS3 *x2;
35   AS5 *x3;
36   char *y;
37   y = x;  // expected-error{{assigning 'AS1 char *' to 'char *' changes address space of pointer}}
38   y = x2; // expected-error{{assigning 'AS3 char *' to 'char *' changes address space of pointer}}
39   y = x3; // expected-error{{assigning '__attribute__((address_space(5))) char *' to 'char *' changes address space of pointer}}
40 }
41 
multiple_attrs(AS_ND int * x)42 void multiple_attrs(AS_ND int *x) {
43   __attribute__((address_space(2))) int *y = x; // expected-warning{{casting to dereferenceable pointer removes 'noderef' attribute}}
44 }
45 
override_macro_name()46 void override_macro_name() {
47 #define ATTRS __attribute__((noderef)) // expected-note{{previous definition is here}}
48   ATTRS
49 #define ATTRS __attribute__((address_space(1))) // expected-warning{{'ATTRS' macro redefined}}
50   ATTRS
51   int *x;
52 
53   int AS_ND *y = x; // expected-error{{initializing 'AS_ND int *' with an expression of type 'ATTRS int *' changes address space of pointer}}
54 }
55 
partial_macro_declaration()56 void partial_macro_declaration() {
57 #define ATTRS2 __attribute__((noderef))
58   ATTRS2 __attribute__((address_space(1))) int *x;
59 
60   int AS_ND *y = x; // expected-error{{initializing 'AS_ND int *' with an expression of type 'ATTRS2 int __attribute__((address_space(1))) *' changes address space of pointer}}
61 
62   // The attribute not wrapped with a macro should be printed regularly.
63 #define ATTRS3 __attribute__((address_space(1)))
64   ATTRS3 __attribute__((noderef)) int *x2;
65 
66   int AS_ND *y2 = x2; // expected-error{{initializing 'AS_ND int *' with an expression of type 'ATTRS3 int * __attribute__((noderef))' changes address space of pointer}}
67 }
68