1 // RUN: %clang_cc1 %s -fsyntax-only -verify -triple x86_64-pc-linux-gnu 2 3 typedef unsigned __uint32_t; 4 5 #define __byte_swap_int_var(x) \ 6 __extension__ ({ register __uint32_t __X = (x); \ 7 __asm ("bswap %0" : "+r" (__X)); \ 8 __X; }) 9 10 int test(int _x) { 11 return (__byte_swap_int_var(_x)); 12 } 13 14 // PR2374 15 int test2() { return ({L:5;}); } 16 int test3() { return ({ {5;} }); } // expected-error {{returning 'void' from a function with incompatible result type 'int'}}\ 17 // expected-warning {{expression result unused}} 18 int test4() { return ({ ({5;}); }); } 19 int test5() { return ({L1: L2: L3: 5;}); } 20 int test6() { return ({5;}); } 21 void test7() { ({5;}); } // expected-warning {{expression result unused}} 22 23 // PR3062 24 int test8[({10;})]; // expected-error {{statement expression not allowed at file scope}} 25 26 // PR3912 27 void test9(const void *P) { 28 __builtin_prefetch(P); 29 } 30 31 32 void *test10() { 33 bar: 34 return &&bar; // expected-warning {{returning address of label, which is local}} 35 } 36 37 // PR6034 38 void test11(int bit) { 39 switch (bit) 40 switch (env->fpscr) // expected-error {{use of undeclared identifier 'env'}} 41 { 42 } 43 } 44 45 // rdar://3271964 46 enum Numbers { kOne, kTwo, kThree, kFour}; 47 int test12(enum Numbers num) { 48 switch (num == kOne) {// expected-warning {{switch condition has boolean value}} 49 default: 50 case kThree: 51 break; 52 } 53 } 54 55 56 enum x { a, b, c, d, e, f, g }; 57 58 void foo(enum x X) { 59 switch (X) { // expected-warning {{enumeration value 'g' not handled in switch}} 60 case a: 61 case b: 62 case c: 63 case d: 64 case e: 65 case f: 66 break; 67 } 68 69 switch (X) { // expected-warning {{enumeration values 'f' and 'g' not handled in switch}} 70 case a: 71 case b: 72 case c: 73 case d: 74 case e: 75 break; 76 } 77 78 switch (X) { // expected-warning {{enumeration values 'e', 'f', and 'g' not handled in switch}} 79 case a: 80 case b: 81 case c: 82 case d: 83 break; 84 } 85 86 switch (X) { // expected-warning {{5 enumeration values not handled in switch: 'c', 'd', 'e'...}} 87 case a: 88 case b: 89 break; 90 } 91 } 92 93 int test_pr8880() { 94 int first = 1; 95 for ( ; ({ if (first) { first = 0; continue; } 0; }); ) 96 return 0; 97 return 1; 98 } 99 100