1 files changed, 26 insertions, 0 deletions
diff --git a/test/Feature/ExtCallWarnings.c b/test/Feature/ExtCallWarnings.c
new file mode 100644
index 00000000..6ee3f371
--- /dev/null
+++ b/test/Feature/ExtCallWarnings.c
@@ -0,0 +1,26 @@
+// RUN: %clang %s -emit-llvm %O0opt -g -c -o %t.bc
+
+// RUN: rm -rf %t.klee-out
+// RUN: %klee --output-dir=%t.klee-out --external-call-warnings=none %t.bc 2>&1 | FileCheck --check-prefix=CHECK-NONE %s
+
+// RUN: rm -rf %t.klee-out
+// RUN: %klee --output-dir=%t.klee-out --external-call-warnings=once-per-function %t.bc 2>&1 | FileCheck --check-prefix=CHECK-ONCE %s
+
+// RUN: rm -rf %t.klee-out
+// RUN: %klee --output-dir=%t.klee-out --external-call-warnings=all %t.bc 2>&1 | FileCheck --check-prefix=CHECK-ALL %s
+
+#include "klee/klee.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+int main() {
+  return abs(-5) + abs(6);
+  // CHECK-NONE-NOT: calling external
+
+  // CHECK-ONCE: calling external
+  // CHECK-ONCE-NOT: calling external
+
+  // CHECK-ALL: calling external
+  // CHECK-ALL: calling external
+  // CHECK-ALL-NOT: calling external
+}