builtins.c revision 691ebc3f3225542e5abd85e107ebdbec907cf510
1// RUN: %clang_cc1 %s -fsyntax-only -verify -pedantic -triple=i686-apple-darwin9 2// This test needs to set the target because it uses __builtin_ia32_vec_ext_v4si 3 4int test1(float a, int b) { 5 return __builtin_isless(a, b); 6} 7int test2(int a, int b) { 8 return __builtin_islessequal(a, b); // expected-error {{floating point type}} 9} 10 11int test3(double a, float b) { 12 return __builtin_isless(a, b); 13} 14int test4(int* a, double b) { 15 return __builtin_islessequal(a, b); // expected-error {{floating point type}} 16} 17 18int test5(float a, long double b) { 19 return __builtin_isless(a, b, b); // expected-error {{too many arguments}} 20} 21int test6(float a, long double b) { 22 return __builtin_islessequal(a); // expected-error {{too few arguments}} 23} 24 25 26#define CFSTR __builtin___CFStringMakeConstantString 27void test7() { 28 const void *X; 29 X = CFSTR("\242"); 30 X = CFSTR("\0"); // expected-warning {{ CFString literal contains NUL character }} 31 X = CFSTR(242); // expected-error {{ CFString literal is not a string constant }} expected-warning {{incompatible integer to pointer conversion}} 32 X = CFSTR("foo", "bar"); // expected-error {{too many arguments to function call}} 33} 34 35 36// atomics. 37 38void test9(short v) { 39 unsigned i, old; 40 41 old = __sync_fetch_and_add(); // expected-error {{too few arguments to function call}} 42 old = __sync_fetch_and_add(&old); // expected-error {{too few arguments to function call}} 43 old = __sync_fetch_and_add((int**)0, 42i); // expected-warning {{imaginary constants are an extension}} 44} 45 46 47// rdar://7236819 48void test10(void) __attribute__((noreturn)); 49 50void test10(void) { 51 __asm__("int3"); 52 __builtin_unreachable(); 53 54 // No warning about falling off the end of a noreturn function. 55} 56 57void test11(int X) { 58 switch (X) { 59 case __builtin_eh_return_data_regno(0): // constant foldable. 60 break; 61 } 62 63 __builtin_eh_return_data_regno(X); // expected-error {{argument 0 to '__builtin_eh_return_data_regno' must be a constant integer}} 64} 65 66// PR5062 67void test12(void) __attribute__((__noreturn__)); 68void test12(void) { 69 __builtin_trap(); // no warning because trap is noreturn. 70} 71 72void test_unknown_builtin(int a, int b) { 73 __builtin_foo(a, b); // expected-error{{use of unknown builtin}} 74} 75