1 files changed, 54 insertions, 0 deletions
diff --git a/test/CodeGen/mangle.c b/test/CodeGen/mangle.c
new file mode 100644
index 000000000000..17d74ba71f0c
--- /dev/null
+++ b/test/CodeGen/mangle.c
@@ -0,0 +1,54 @@
+// RUN: clang-cc -triple i386-pc-linux-gnu -emit-llvm -o %t %s &&
+// RUN: grep '@_Z2f0i' %t &&
+// RUN: grep '@_Z2f0l' %t &&
+
+// Make sure we mangle overloadable, even in C system headers.
+
+# 1 "somesystemheader.h" 1 3 4
+void __attribute__((__overloadable__)) f0(int a) {}
+void __attribute__((__overloadable__)) f0(long b) {}
+
+
+
+// These should get merged.
+void foo() __asm__("bar");
+void foo2() __asm__("bar");
+
+// RUN: grep '@"\\01foo"' %t &&
+// RUN: grep '@"\\01bar"' %t
+
+int nux __asm__("foo");
+extern float nux2 __asm__("foo");
+
+int test() { 
+  foo();
+  foo2();
+  
+  return nux + nux2;
+}
+
+
+// Function becomes a variable.
+void foo3() __asm__("var");
+
+void test2() {
+  foo3();
+}
+int foo4 __asm__("var") = 4;
+
+
+// Variable becomes a function
+extern int foo5 __asm__("var2");
+
+void test3() {
+  foo5 = 1;
+}
+
+void foo6() __asm__("var2");
+void foo6() {
+}
+
+
+
+int foo7 __asm__("foo7") __attribute__((used));
+float foo8 __asm__("foo7") = 42;