test/CodeGen/visibility.c

// RUN: clang-cc -triple i386-unknown-unknown -fvisibility=default -emit-llvm -o %t %s
// RUN: grep '@g_com = common global i32 0' %t
// RUN: grep '@g_def = global i32 0' %t
// RUN: grep '@g_ext = external global i32' %t
// RUN: grep '@g_deferred = internal global' %t
// RUN: grep 'declare void @f_ext()' %t
// RUN: grep 'define internal void @f_deferred()' %t
// RUN: grep 'define i32 @f_def()' %t
// RUN: clang-cc -triple i386-unknown-unknown -fvisibility=protected -emit-llvm -o %t %s
// RUN: grep '@g_com = common protected global i32 0' %t
// RUN: grep '@g_def = protected global i32 0' %t
// RUN: grep '@g_ext = external global i32' %t
// RUN: grep '@g_deferred = internal global' %t
// RUN: grep 'declare void @f_ext()' %t
// RUN: grep 'define internal void @f_deferred()' %t
// RUN: grep 'define protected i32 @f_def()' %t
// RUN: clang-cc -triple i386-unknown-unknown -fvisibility=hidden -emit-llvm -o %t %s
// RUN: grep '@g_com = common hidden global i32 0' %t
// RUN: grep '@g_def = hidden global i32 0' %t
// RUN: grep '@g_ext = external global i32' %t
// RUN: grep '@g_deferred = internal global' %t
// RUN: grep 'declare void @f_ext()' %t
// RUN: grep 'define internal void @f_deferred()' %t
// RUN: grep 'define hidden i32 @f_def()' %t

int g_com;
int g_def = 0;
extern int g_ext;
static char g_deferred[] = "hello";

extern void f_ext(void);

static void f_deferred(void) {
}

int f_def(void) {
  f_ext();
  f_deferred();
  return g_com + g_def + g_ext + g_deferred[0];
}