1 files changed, 49 insertions, 0 deletions
diff --git a/test/Unit/trampoline_setup_test.c b/test/Unit/trampoline_setup_test.c
new file mode 100644
index 000000000..630d5c46a
--- /dev/null
+++ b/test/Unit/trampoline_setup_test.c
@@ -0,0 +1,49 @@
+//===-- trampoline_setup_test.c - Test __trampoline_setup -----------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <sys/mman.h>
+
+//
+// Tests nested functions
+// The ppc compiler generates a call to __trampoline_setup
+// The i386 and x86_64 compilers generate a call to ___enable_execute_stack
+//
+
+typedef int (*nested_func_t)(int x);
+
+nested_func_t proc;
+
+int main()
+{
+    // some locals
+    int c = 10;
+    int d = 7;
+    
+    // define a nested function
+    int bar(int x) { return x*5 + c*d; };
+
+    // assign global to point to nested function
+    // (really points to trampoline)
+    proc = bar;
+    
+    // invoke nested function
+    c = 4;
+    if ( (*proc)(3) != 43 )
+        return 1;
+    d = 5;
+    if ( (*proc)(4) != 40 )
+        return 1;
+
+    // success
+    return 0;
+}