diff --git a/test/CFrontend/2005-12-04-DeclarationLineNumbers.c b/test/CFrontend/2005-12-04-DeclarationLineNumbers.c
new file mode 100644
index 00000000000..48e95e2edb0
--- /dev/null
+++ b/test/CFrontend/2005-12-04-DeclarationLineNumbers.c
@@ -0,0 +1,20 @@
+// RUN: %llvmgcc %s -S -g -o - | grep 'llvm.dbg.stoppoint.*uint 14'
+// PR664: ensure that line #'s are emitted for declarations
+short test(short br_data_0,
+short br_data_1,
+short br_data_2,
+short br_data_3,
+short br_data_4,
+short br_data_5,
+short br_data_6,
+short br_data_7) {
+
+short sm07 = br_data_0 + br_data_7;
+short sm16 = br_data_1 + br_data_6;
+short sm25 = br_data_2 + br_data_5;
+short sm34 = br_data_3 + br_data_4;
+short s0734 = sm07 + sm34;
+short s1625 = sm16 + sm25;
+
+return s0734 + s1625;
+}