// RUN: %clang_cc1 %s -fsyntax-only -verify #define _AS1 __attribute__((address_space(1))) #define _AS2 __attribute__((address_space(2))) #define _AS3 __attribute__((address_space(3))) void bar(_AS2 int a); // expected-error {{parameter may not be qualified with an address space}} void foo(_AS3 float *a, _AS1 float b) // expected-error {{parameter may not be qualified with an address space}} { _AS2 *x;// expected-warning {{type specifier missing, defaults to 'int'}} _AS1 float * _AS2 *B; int _AS1 _AS2 *Y; // expected-error {{multiple address spaces specified for type}} int *_AS1 _AS2 *Z; // expected-error {{multiple address spaces specified for type}} _AS1 int local; // expected-error {{automatic variable qualified with an address space}} _AS1 int array[5]; // expected-error {{automatic variable qualified with an address space}} _AS1 int arrarr[5][5]; // expected-error {{automatic variable qualified with an address space}} __attribute__((address_space(-1))) int *_boundsA; // expected-error {{address space is negative}} __attribute__((address_space(0xFFFFFF))) int *_boundsB; __attribute__((address_space(0x1000000))) int *_boundsC; // expected-error {{address space is larger than the maximum supported}} // chosen specifically to overflow 32 bits and come out reasonable __attribute__((address_space(4294967500))) int *_boundsD; // expected-error {{address space is larger than the maximum supported}} *a = 5.0f + b; } struct _st { int x, y; } s __attribute ((address_space(1))) = {1, 1}; // rdar://6774906 __attribute__((address_space(256))) void * * const base = 0; void * get_0(void) { return base[0]; // expected-error {{returning '__attribute__((address_space(256))) void *' from a function with result type 'void *' changes address space of pointer}} } __attribute__((address_space(1))) char test3_array[10]; void test3(void) { extern void test3_helper(char *p); // expected-note {{passing argument to parameter 'p' here}} test3_helper(test3_array); // expected-error {{changes address space of pointer}} } typedef void ft(void); _AS1 ft qf; // expected-error {{function type may not be qualified with an address space}} typedef _AS1 ft qft; // expected-error {{function type may not be qualified with an address space}} typedef _AS2 int AS2Int; struct HasASFields { _AS2 int as_field; // expected-error {{field may not be qualified with an address space}} AS2Int typedef_as_field; // expected-error {{field may not be qualified with an address space}} }; // Assertion failure was when the field was accessed void access_as_field() { struct HasASFields x; (void) bar.as_field; } typedef int PR4997 __attribute__((address_space(Foobar))); // expected-error {{use of undeclared identifier 'Foobar'}} __attribute__((address_space("12"))) int *i; // expected-error {{'address_space' attribute requires an integer constant}} // Clang extension doesn't forbid operations on pointers to different address spaces. char* cmp(_AS1 char *x, _AS2 char *y) { return x < y ? x : y; // expected-warning {{pointer type mismatch ('__attribute__((address_space(1))) char *' and '__attribute__((address_space(2))) char *')}} }