clang/test/Sema/builtins-arm64.c

// RUN: %clang_cc1 -triple arm64-apple-ios -fsyntax-only -verify %s
// RUN: %clang_cc1 -triple arm64-apple-ios -DTEST1 -fsyntax-only -verify %s

#ifdef TEST1
void __clear_cache(void *start, void *end);
#endif

void test_clear_cache_chars(char *start, char *end) {
  __clear_cache(start, end);
}

void test_clear_cache_voids(void *start, void *end) {
  __clear_cache(start, end);
}

void test_clear_cache_no_args() {
  __clear_cache(); // expected-error {{too few arguments to function call}}
}

void test_memory_barriers() {
  __builtin_arm_dmb(16); // expected-error {{argument should be a value from 0 to 15}}
  __builtin_arm_dsb(17); // expected-error {{argument should be a value from 0 to 15}}
  __builtin_arm_isb(18); // expected-error {{argument should be a value from 0 to 15}}
}