Initial KLEE checkin.

 - Lots more tweaks, documentation, and web page content is needed,
   but this should compile & work on OS X & Linux.


git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@72205 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 36 insertions, 0 deletions

diff --git a/test/Feature/FunctionPointer.c b/test/Feature/FunctionPointer.c
new file mode 100644
index 00000000..e1ae1e37
--- /dev/null
+++ b/test/Feature/FunctionPointer.c
@@ -0,0 +1,36 @@
+// RUN: %llvmgcc %s -emit-llvm -g -c -o %t1.bc
+// RUN: %klee --no-output --exit-on-error %t1.bc
+
+#include <stdio.h>
+
+void foo(const char *msg) { printf("foo: %s\n", msg); }
+void baz(const char *msg) { printf("baz: %s\n", msg); }
+
+void (*xx)(const char *) = foo;
+
+void bar(void (*fp)(const char *)) { fp("called via bar"); }
+
+int main(int argc, char **argv) {
+  void (*fp)(const char *) = foo;
+
+  printf("going to call through fp\n");
+  fp("called via fp");
+
+  printf("calling via pass through\n");
+  bar(foo);
+        
+  fp = baz;
+  fp("called via fp");
+
+  xx("called via xx");
+
+#if 0
+  klee_make_symbolic(&fp, sizeof fp);
+  if(fp == baz) {
+    printf("fp = %p, baz = %p\n", fp, baz);
+    fp("calling via symbolic!");
+  }
+#endif
+
+  return 0;
+}