| // RUN: %clang_cc1 -x c -triple x86_64-pc-linux-gnu -dwarf-version=4 -fsyntax-only -verify %s |
| |
| const void *invalid1(const int *arg) { |
| return __builtin_preserve_access_index(&arg[1], 1); // expected-error {{too many arguments to function call, expected 1, have 2}} |
| } |
| |
| int valid2(void) { |
| return __builtin_preserve_access_index(1); |
| } |
| |
| void *invalid3(const int *arg) { |
| return __builtin_preserve_access_index(&arg[1]); // expected-warning {{returning 'const int *' from a function with result type 'void *' discards qualifiers}} |
| } |
| |
| const void *invalid4(volatile const int *arg) { |
| return __builtin_preserve_access_index(arg); // expected-warning {{returning 'const volatile int *' from a function with result type 'const void *' discards qualifiers}} |
| } |
| |
| int *valid5(int *arg) { |
| return __builtin_preserve_access_index(arg); |
| } |
| |
| int valid6(const volatile int *arg) { |
| return *__builtin_preserve_access_index(arg); |
| } |
| |
| struct s { int a; int b; }; |
| |
| int valid7(struct s *arg) { |
| return *__builtin_preserve_access_index(&arg->b); |
| } |
| |
| int valid8(struct s *arg) { |
| return __builtin_preserve_access_index(arg->a + arg->b); |
| } |
| |
| int valid9(struct s *arg) { |
| return __builtin_preserve_access_index(({arg->a = 2; arg->b = 3; })); |
| } |