Add the clang library to the repo (with some of my changes, too).

1 files changed, 69 insertions, 0 deletions

diff --git a/clang/test/CodeGen/visibility.c b/clang/test/CodeGen/visibility.c
new file mode 100644
index 0000000..fa4b599
--- /dev/null
+++ b/clang/test/CodeGen/visibility.c
@@ -0,0 +1,69 @@
+// RUN: %clang_cc1 %s -triple i386-unknown-unknown -fvisibility default -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-DEFAULT
+// RUN: %clang_cc1 %s -triple i386-unknown-unknown -fvisibility protected -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-PROTECTED
+// RUN: %clang_cc1 %s -triple i386-unknown-unknown -fvisibility hidden -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-HIDDEN
+
+// CHECK-DEFAULT: @g_def = global i32 0
+// CHECK-DEFAULT: @g_com = common global i32 0
+// CHECK-DEFAULT: @g_ext = external global i32
+// CHECK-DEFAULT: @g_deferred = internal global
+// CHECK-PROTECTED: @g_def = protected global i32 0
+// CHECK-PROTECTED: @g_com = common protected global i32 0
+// CHECK-PROTECTED: @g_ext = external global i32
+// CHECK-PROTECTED: @g_deferred = internal global
+// CHECK-HIDDEN: @g_def = hidden global i32 0
+// CHECK-HIDDEN: @g_com = common hidden global i32 0
+// CHECK-HIDDEN: @g_ext = external global i32
+// CHECK-HIDDEN: @g_deferred = internal global
+int g_com;
+int g_def = 0;
+extern int g_ext;
+static char g_deferred[] = "hello";
+
+// CHECK-DEFAULT: @test4 = hidden global i32 10
+// CHECK-PROTECTED: @test4 = hidden global i32 10
+// CHECK-HIDDEN: @test4 = hidden global i32 10
+
+// CHECK-DEFAULT: define i32 @f_def()
+// CHECK-DEFAULT: declare void @f_ext()
+// CHECK-DEFAULT: define internal void @f_deferred()
+// CHECK-PROTECTED: define protected i32 @f_def()
+// CHECK-PROTECTED: declare void @f_ext()
+// CHECK-PROTECTED: define internal void @f_deferred()
+// CHECK-HIDDEN: define hidden i32 @f_def()
+// CHECK-HIDDEN: declare void @f_ext()
+// CHECK-HIDDEN: define internal void @f_deferred()
+
+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];
+}
+
+// PR8457
+// CHECK-DEFAULT: define void @test1(
+// CHECK-PROTECTED: define void @test1(
+// CHECK-HIDDEN: define void @test1(
+struct Test1 { int field; };
+void  __attribute__((visibility("default"))) test1(struct Test1 *v) { }
+
+// rdar://problem/8595231
+// CHECK-DEFAULT: define void @test2()
+// CHECK-PROTECTED: define void @test2()
+// CHECK-HIDDEN: define void @test2()
+void test2(void);
+void __attribute__((visibility("default"))) test2(void) {}
+
+// CHECK-DEFAULT: define hidden void @test3()
+// CHECK-PROTECTED: define hidden void @test3()
+// CHECK-HIDDEN: define hidden void @test3()
+extern void test3(void);
+__private_extern__ void test3(void) {}
+
+// Top of file.
+extern int test4;
+__private_extern__ int test4 = 10;