builtins.c revision 9a8c9a2eacd80437f18edb339a37516ab7e773cd
1// RUN: clang-cc %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 CFSTR("\242"); 29 CFSTR("\0"); // expected-warning {{ CFString literal contains NUL character }} 30 CFSTR(242); // expected-error {{ CFString literal is not a string constant }} expected-warning {{incompatible integer to pointer conversion}} 31 CFSTR("foo", "bar"); // expected-error {{too many arguments to function call}} 32} 33 34 35// atomics. 36 37void test9(short v) { 38 unsigned i, old; 39 40 old = __sync_fetch_and_add(); // expected-error {{too few arguments to function call}} 41 old = __sync_fetch_and_add(&old); // expected-error {{too few arguments to function call}} 42 old = __sync_fetch_and_add((int**)0, 42i); // expected-warning {{imaginary constants are an extension}} 43} 44 45 46// rdar://7236819 47void test10(void) __attribute__((noreturn)); 48 49void test10(void) { 50 __asm__("int3"); 51 __builtin_unreachable(); 52 53 // No warning about falling off the end of a noreturn function. 54} 55 56void test11(int X) { 57 switch (X) { 58 case __builtin_eh_return_data_regno(0): // constant foldable. 59 break; 60 } 61 62 __builtin_eh_return_data_regno(X); // expected-error {{not an integer constant expression}} 63} 64 65// PR5062 66void test12(void) __attribute__((__noreturn__)); 67void test12(void) { 68 __builtin_trap(); // no warning because trap is noreturn. 69} 70 71void test_unknown_builtin(int a, int b) { 72 __builtin_foo(a, b); // expected-error{{use of unknown builtin}} 73} 74