|  | // RUN: %clang_cc1 %s -emit-llvm -o - | 
|  | // REQUIRES: LP64 | 
|  |  | 
|  | // Aggregates of size zero should be dropped from argument list. | 
|  | typedef long int Tlong; | 
|  | struct S2411 { | 
|  | __attribute__((aligned)) Tlong:0; | 
|  | }; | 
|  |  | 
|  | extern struct S2411 a2411[5]; | 
|  | extern void checkx2411(struct S2411); | 
|  | void test2411(void) { | 
|  | checkx2411(a2411[0]); | 
|  | } | 
|  |  | 
|  | // Proper handling of zero sized fields during type conversion. | 
|  | typedef unsigned long long int Tal2ullong __attribute__((aligned(2))); | 
|  | struct S2525 { | 
|  | Tal2ullong: 0; | 
|  | struct { | 
|  | } e; | 
|  | }; | 
|  | struct S2525 s2525; | 
|  |  | 
|  | struct { | 
|  | signed char f; | 
|  | char :0; | 
|  | struct{}h; | 
|  | char * i[5]; | 
|  | } data; | 
|  |  | 
|  | // Taking address of a zero sized field. | 
|  | struct Z {}; | 
|  | struct Y { | 
|  | int i; | 
|  | struct Z z; | 
|  | }; | 
|  | void *f(struct Y *y) { | 
|  | return &y->z; | 
|  | } |