forked from OSchip/llvm-project
94 lines
4.2 KiB
C
94 lines
4.2 KiB
C
// RUN: %clang_cc1 %s -fsyntax-only -verify
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#define _AS1 __attribute__((address_space(1)))
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#define _AS2 __attribute__((address_space(2)))
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#define _AS3 __attribute__((address_space(3)))
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void bar(_AS2 int a); // expected-error {{parameter may not be qualified with an address space}}
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void foo(_AS3 float *a,
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_AS1 float b) // expected-error {{parameter may not be qualified with an address space}}
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{
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_AS2 *x;// expected-warning {{type specifier missing, defaults to 'int'}}
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_AS1 float * _AS2 *B;
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int _AS1 _AS2 *Y; // expected-error {{multiple address spaces specified for type}}
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int *_AS1 _AS2 *Z; // expected-error {{multiple address spaces specified for type}}
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int *_AS1 _AS1 *M; // expected-warning {{multiple identical address spaces specified for type}}
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_AS1 int local; // expected-error {{automatic variable qualified with an address space}}
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_AS1 int array[5]; // expected-error {{automatic variable qualified with an address space}}
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_AS1 int arrarr[5][5]; // expected-error {{automatic variable qualified with an address space}}
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__attribute__((address_space(-1))) int *_boundsA; // expected-error {{address space is negative}}
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__attribute__((address_space(0x7FFFFF))) int *_boundsB; // expected-error {{address space is larger than the maximum supported}}
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__attribute__((address_space(0x1000000))) int *_boundsC; // expected-error {{address space is larger than the maximum supported}}
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// chosen specifically to overflow 32 bits and come out reasonable
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__attribute__((address_space(4294967500))) int *_boundsD; // expected-error {{address space is larger than the maximum supported}}
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*a = 5.0f + b;
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}
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struct _st {
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int x, y;
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} s __attribute ((address_space(1))) = {1, 1};
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// rdar://6774906
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__attribute__((address_space(256))) void * * const base = 0;
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void * get_0(void) {
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return base[0]; // expected-error {{returning '__attribute__((address_space(256))) void *' from a function with result type 'void *' changes address space of pointer}}
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}
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__attribute__((address_space(1))) char test3_array[10];
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void test3(void) {
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extern void test3_helper(char *p); // expected-note {{passing argument to parameter 'p' here}}
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test3_helper(test3_array); // expected-error {{changes address space of pointer}}
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}
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typedef void ft(void);
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_AS1 ft qf; // expected-error {{function type may not be qualified with an address space}}
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typedef _AS1 ft qft; // expected-error {{function type may not be qualified with an address space}}
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typedef _AS2 int AS2Int;
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struct HasASFields
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{
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_AS2 int as_field; // expected-error {{field may not be qualified with an address space}}
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AS2Int typedef_as_field; // expected-error {{field may not be qualified with an address space}}
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};
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// Assertion failure was when the field was accessed
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void access_as_field()
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{
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struct HasASFields x;
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(void) bar.as_field;
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}
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typedef int PR4997 __attribute__((address_space(Foobar))); // expected-error {{use of undeclared identifier 'Foobar'}}
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__attribute__((address_space("12"))) int *i; // expected-error {{'address_space' attribute requires an integer constant}}
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// Clang extension doesn't forbid operations on pointers to different address spaces.
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char* cmp(_AS1 char *x, _AS2 char *y) {
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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}}
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}
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char *sub(_AS1 char *x, _AS2 char *y) {
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return x - y; // expected-error {{arithmetic operation with operands of type ('_AS1 char *' and '_AS2 char *') which are pointers to non-overlapping address spaces}}
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}
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struct SomeStruct {
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int a;
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long b;
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int c;
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};
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// Compound literals in function scope are lvalues with automatic storage duration,
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// so they cannot realistically be qualified with an address space.
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void as_compound_literal() {
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(_AS1 struct SomeStruct){1, 2, 3}; // expected-error {{compound literal in function scope may not be qualified with an address space}}
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(_AS1 char[]){"test"}; // expected-error {{compound literal in function scope may not be qualified with an address space}}
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(_AS1 char[]){'a', 'b', 'c'}; // expected-error {{compound literal in function scope may not be qualified with an address space}}
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}
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