builtins-arm64-exclusive.c
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// RUN: %clang_cc1 -triple arm64-apple-ios7.0 -fsyntax-only -verify %s
struct Simple {
char a, b;
};
int test_ldrex(char *addr) {
int sum = 0;
sum += __builtin_arm_ldrex(addr);
sum += __builtin_arm_ldrex((short *)addr);
sum += __builtin_arm_ldrex((int *)addr);
sum += __builtin_arm_ldrex((long long *)addr);
sum += __builtin_arm_ldrex((__int128 *)addr);
sum += __builtin_arm_ldrex((float *)addr);
sum += __builtin_arm_ldrex((double *)addr);
sum += *__builtin_arm_ldrex((int **)addr);
sum += __builtin_arm_ldrex((struct Simple **)addr)->a;
sum += __builtin_arm_ldrex((volatile char *)addr);
sum += __builtin_arm_ldrex((const volatile char *)addr);
// In principle this might be valid, but stick to ints and floats for scalar
// types at the moment.
sum += __builtin_arm_ldrex((struct Simple *)addr).a; // expected-error {{address argument to atomic builtin must be a pointer to}}
__builtin_arm_ldrex(); // expected-error {{too few arguments to function call}}
__builtin_arm_ldrex(1, 2); // expected-error {{too many arguments to function call}}
return sum;
}
int test_strex(char *addr) {
int res = 0;
struct Simple var = {0};
res |= __builtin_arm_strex(4, addr);
res |= __builtin_arm_strex(42, (short *)addr);
res |= __builtin_arm_strex(42, (int *)addr);
res |= __builtin_arm_strex(42, (long long *)addr);
res |= __builtin_arm_strex(42, (__int128 *)addr);
res |= __builtin_arm_strex(2.71828f, (float *)addr);
res |= __builtin_arm_strex(3.14159, (double *)addr);
res |= __builtin_arm_strex(&var, (struct Simple **)addr);
res |= __builtin_arm_strex(42, (volatile char *)addr);
res |= __builtin_arm_strex(42, (char *const)addr);
res |= __builtin_arm_strex(42, (const char *)addr); // expected-warning {{passing 'const char *' to parameter of type 'volatile char *' discards qualifiers}}
res |= __builtin_arm_strex(var, (struct Simple *)addr); // expected-error {{address argument to atomic builtin must be a pointer to}}
res |= __builtin_arm_strex(var, (struct Simple **)addr); // expected-error {{passing 'struct Simple' to parameter of incompatible type 'struct Simple *'}}
res |= __builtin_arm_strex(&var, (struct Simple **)addr).a; // expected-error {{is not a structure or union}}
__builtin_arm_strex(1); // expected-error {{too few arguments to function call}}
__builtin_arm_strex(1, 2, 3); // expected-error {{too many arguments to function call}}
return res;
}
int test_ldaex(char *addr) {
int sum = 0;
sum += __builtin_arm_ldaex(addr);
sum += __builtin_arm_ldaex((short *)addr);
sum += __builtin_arm_ldaex((int *)addr);
sum += __builtin_arm_ldaex((long long *)addr);
sum += __builtin_arm_ldaex((__int128 *)addr);
sum += __builtin_arm_ldaex((float *)addr);
sum += __builtin_arm_ldaex((double *)addr);
sum += *__builtin_arm_ldaex((int **)addr);
sum += __builtin_arm_ldaex((struct Simple **)addr)->a;
sum += __builtin_arm_ldaex((volatile char *)addr);
sum += __builtin_arm_ldaex((const volatile char *)addr);
// In principle this might be valid, but stick to ints and floats for scalar
// types at the moment.
sum += __builtin_arm_ldaex((struct Simple *)addr).a; // expected-error {{address argument to atomic builtin must be a pointer to}}
__builtin_arm_ldaex(); // expected-error {{too few arguments to function call}}
__builtin_arm_ldaex(1, 2); // expected-error {{too many arguments to function call}}
return sum;
}
int test_stlex(char *addr) {
int res = 0;
struct Simple var = {0};
res |= __builtin_arm_stlex(4, addr);
res |= __builtin_arm_stlex(42, (short *)addr);
res |= __builtin_arm_stlex(42, (int *)addr);
res |= __builtin_arm_stlex(42, (long long *)addr);
res |= __builtin_arm_stlex(42, (__int128 *)addr);
res |= __builtin_arm_stlex(2.71828f, (float *)addr);
res |= __builtin_arm_stlex(3.14159, (double *)addr);
res |= __builtin_arm_stlex(&var, (struct Simple **)addr);
res |= __builtin_arm_stlex(42, (volatile char *)addr);
res |= __builtin_arm_stlex(42, (char *const)addr);
res |= __builtin_arm_stlex(42, (const char *)addr); // expected-warning {{passing 'const char *' to parameter of type 'volatile char *' discards qualifiers}}
res |= __builtin_arm_stlex(var, (struct Simple *)addr); // expected-error {{address argument to atomic builtin must be a pointer to}}
res |= __builtin_arm_stlex(var, (struct Simple **)addr); // expected-error {{passing 'struct Simple' to parameter of incompatible type 'struct Simple *'}}
res |= __builtin_arm_stlex(&var, (struct Simple **)addr).a; // expected-error {{is not a structure or union}}
__builtin_arm_stlex(1); // expected-error {{too few arguments to function call}}
__builtin_arm_stlex(1, 2, 3); // expected-error {{too many arguments to function call}}
return res;
}
void test_clrex() {
__builtin_arm_clrex();
__builtin_arm_clrex(1); // expected-error {{too many arguments to function call}}
}