diff --git a/test/Transforms/SimplifyLibCalls/2005-05-20-sprintf-crash.ll b/test/Transforms/SimplifyLibCalls/2005-05-20-sprintf-crash.ll
new file mode 100644
index 00000000000..3c00c74ff39
--- /dev/null
+++ b/test/Transforms/SimplifyLibCalls/2005-05-20-sprintf-crash.ll
@@ -0,0 +1,10 @@
+; RUN: llvm-as < %s | opt -simplify-libcalls -disable-output
+
+%G = constant [3 x sbyte] c"%s\00"
+
+declare int %sprintf(sbyte*, sbyte*, ...)
+
+void %foo(sbyte*%P, int *%X) {
+  call int(sbyte*,sbyte*, ...)* %sprintf(sbyte* %P, sbyte* getelementptr ([3 x sbyte]* %G, int 0, int 0), int* %X)
+  ret void
+}