1 // RUN: %clang_cc1 -emit-llvm-only %s
2 
3 typedef struct _IO_FILE FILE;
4 int vfprintf(FILE*restrict,const char*restrict, __builtin_va_list);
foo(__builtin_va_list ap)5 void foo(__builtin_va_list ap) {
6   vfprintf(0, " ", ap);
7 }
8 
9