Internal variables could mistakenly have "hidden" visibility when

their emission was deferred.
 - <rdar://problem/6775234> variables with internal linkage should not
   be exposed with -fvisibility=hidden.

llvm-svn: 68818

1 files changed, 12 insertions, 1 deletions

diff --git a/clang/test/CodeGen/visibility.c b/clang/test/CodeGen/visibility.c
index 42d66f9b832..bb9b6e0d50c 100644
--- a/clang/test/CodeGen/visibility.c
+++ b/clang/test/CodeGen/visibility.c
@@ -2,29 +2,40 @@
 // 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 &&a
 // 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 &&
 // RUN: true
 
 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();
-  return g_com + g_def + g_ext;
+  f_deferred();
+  return g_com + g_def + g_ext + g_deferred[0];
 }