From d986fc8b4816bd51fb9de5d8ee04fbbc80909b62 Mon Sep 17 00:00:00 2001
From: Eli Friedman <eli.friedman@gmail.com>
Date: Thu, 5 Aug 2010 07:00:53 +0000
Subject: [PATCH] Tests for #pragma GCC visibility.

llvm-svn: 110316
---
 clang/test/CodeGen/pragma-visibility.c      | 24 +++++++
 clang/test/CodeGenCXX/pragma-visibility.cpp | 72 +++++++++++++++++++++
 clang/test/Parser/pragma-visibility.c       |  9 +++
 3 files changed, 105 insertions(+)
 create mode 100644 clang/test/CodeGen/pragma-visibility.c
 create mode 100644 clang/test/CodeGenCXX/pragma-visibility.cpp
 create mode 100644 clang/test/Parser/pragma-visibility.c

diff --git a/clang/test/CodeGen/pragma-visibility.c b/clang/test/CodeGen/pragma-visibility.c
new file mode 100644
index 000000000000..16460a28280e
--- /dev/null
+++ b/clang/test/CodeGen/pragma-visibility.c
@@ -0,0 +1,24 @@
+// RUN: %clang_cc1 -emit-llvm -o - %s | FileCheck %s
+
+#pragma GCC visibility push(hidden)
+int x = 2;
+// CHECK: @x = hidden global
+
+extern int y;
+#pragma GCC visibility pop
+int y = 4;
+// CHECK: @y = hidden global
+
+#pragma GCC visibility push(hidden)
+extern __attribute((visibility("default"))) int z;
+int z = 0;
+// CHECK: @z = global
+#pragma GCC visibility pop
+
+#pragma GCC visibility push(hidden)
+void f() {}
+// CHECK: define hidden void @f
+
+__attribute((visibility("default"))) void g();
+void g() {}
+// CHECK: define void @g
diff --git a/clang/test/CodeGenCXX/pragma-visibility.cpp b/clang/test/CodeGenCXX/pragma-visibility.cpp
new file mode 100644
index 000000000000..05de78670a04
--- /dev/null
+++ b/clang/test/CodeGenCXX/pragma-visibility.cpp
@@ -0,0 +1,72 @@
+// RUN: %clang_cc1 -emit-llvm -o - %s | FileCheck %s
+
+#pragma GCC visibility push(hidden)
+struct x {
+  static int y;
+};
+#pragma GCC visibility pop
+int x::y = 10;
+// CHECK: @_ZN1x1yE = hidden global
+
+#pragma GCC visibility push(hidden)
+struct __attribute((visibility("default"))) x2 {
+  static int y;
+};
+int x2::y = 10;
+// CHECK: @_ZN2x21yE = global
+#pragma GCC visibility pop
+
+#pragma GCC visibility push(hidden)
+struct x3 {
+  static int y;
+} __attribute((visibility("default")));
+int x3::y = 10;
+// CHECK: @_ZN2x31yE = global
+#pragma GCC visibility pop
+
+#pragma GCC visibility push(hidden)
+template<class T> struct x4 {
+  static int y;
+};
+#pragma GCC visibility pop
+template<> int x4<int>::y = 10;
+// CHECK: @_ZN2x4IiE1yE = hidden global i32
+
+#pragma GCC visibility push(hidden)
+template<int x> int f() { return x; }
+extern "C" int g() { return f<3>(); }
+#pragma GCC visibility pop
+// CHECK: define hidden i32 @g()
+// CHECK: define linkonce_odr hidden i32 @_Z1fILi3EEiv()
+
+#pragma GCC visibility push(hidden)
+template<class T> struct x5 {
+  void y();
+};
+#pragma GCC visibility pop
+template<> void x5<int>::y() {}
+// CHECK: define hidden void @_ZN2x5IiE1yEv
+
+#pragma GCC visibility push(hidden)
+namespace n __attribute((visibility("default"))) {
+  void f() {}
+  // CHECK: define void @_ZN1n1fEv
+}
+#pragma GCC visibility pop
+
+namespace n __attribute((visibility("default")))  {
+  extern int foofoo; // FIXME: Shouldn't be necessary, but otherwise the pragma
+                     //        gets to Sema before the namespace!
+#pragma GCC visibility push(hidden)
+  void g() {}
+  // CHECK: define hidden void @_ZN1n1gEv
+#pragma GCC visibility pop
+}
+
+namespace n __attribute((visibility("hidden"))) {
+  extern int foofoo; // FIXME: Shouldn't be necessary, but otherwise the pragma
+                     //        gets to Sema before the namespace!
+  #pragma GCC visibility pop
+  void h() {}
+  // CHECK: define void @_ZN1n1hEv
+}
diff --git a/clang/test/Parser/pragma-visibility.c b/clang/test/Parser/pragma-visibility.c
new file mode 100644
index 000000000000..cfc3d9eccd86
--- /dev/null
+++ b/clang/test/Parser/pragma-visibility.c
@@ -0,0 +1,9 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+#pragma GCC visibility foo // expected-warning{{expected identifier in '#pragma visibility' - ignored}}
+#pragma GCC visibility pop foo // expected-warning{{extra tokens at end of '#pragma visibility' - ignored}}
+#pragma GCC visibility push // expected-warning{{missing '(' after '#pragma visibility'}}
+#pragma GCC visibility push( // expected-warning{{expected identifier in '#pragma visibility' - ignored}}
+#pragma GCC visibility push(hidden // expected-warning{{missing ')' after '#pragma visibility' - ignoring}}
+#pragma GCC visibility push(hidden)
+#pragma GCC visibility pop