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
test(int _x)10 int test(int _x) {
11 return (__byte_swap_int_var(_x));
12 }
13
14 // PR2374
test2()15 int test2() { return ({L:5;}); }
test3()16 int test3() { return ({ {5;} }); } // expected-error {{returning 'void' from a function with incompatible result type 'int'}}\
17 // expected-warning {{expression result unused}}
test4()18 int test4() { return ({ ({5;}); }); }
test5()19 int test5() { return ({L1: L2: L3: 5;}); }
test6()20 int test6() { return ({5;}); }
test7()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
test9(const void * P)27 void test9(const void *P) {
28 __builtin_prefetch(P);
29 }
30
31
test10()32 void *test10() {
33 bar:
34 return &&bar; // expected-warning {{returning address of label, which is local}}
35 }
36
37 // PR6034
test11(int bit)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};
test12(enum Numbers num)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
foo(enum x X)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
test_pr8880()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