diff --git a/test/CodeGen/PowerPC/2006-10-17-ppc64-alloca.ll b/test/CodeGen/PowerPC/2006-10-17-ppc64-alloca.ll
new file mode 100644
index 00000000000..bb46a1bdfc7
--- /dev/null
+++ b/test/CodeGen/PowerPC/2006-10-17-ppc64-alloca.ll
@@ -0,0 +1,6 @@
+; RUN: llvm-as < %s | llc -march=ppc64
+
+int * %foo(uint %n) {
+	%A = alloca int, uint %n
+	ret int* %A
+}