diff --git a/test/Assembler/2003-04-15-ConstantInitAssertion.llx b/test/Assembler/2003-04-15-ConstantInitAssertion.llx
new file mode 100644
index 00000000000..4048f2b70bf
--- /dev/null
+++ b/test/Assembler/2003-04-15-ConstantInitAssertion.llx
@@ -0,0 +1,4 @@
+; RUN: (as < %s 2>&1) | grep Expected
+; Test the case of a misformed constant initializer
+; This should cause an assembler error, not an assertion failure!
+%X = constant {int} { float 1.0 }