diff --git a/test/Regression/CodeGen/PowerPC/2006-07-07-ComputeMaskedBits.ll b/test/Regression/CodeGen/PowerPC/2006-07-07-ComputeMaskedBits.ll
new file mode 100644
index 00000000000..396da37d2f5
--- /dev/null
+++ b/test/Regression/CodeGen/PowerPC/2006-07-07-ComputeMaskedBits.ll
@@ -0,0 +1,16 @@
+; RUN: llvm-as < %s | llc -mtriple=powerpc64-apple-darwin | grep extsw | wc -l | grep 2
+
+%lens = external global ubyte*
+%vals = external global int*
+
+int %test(int %i) {
+	%tmp = load ubyte** %lens
+	%tmp1 = getelementptr ubyte* %tmp, int %i
+	%tmp = load ubyte* %tmp1
+	%tmp2 = cast ubyte %tmp to int
+	%tmp3 = load int** %vals
+	%tmp5 = sub int 1, %tmp2
+	%tmp6 = getelementptr int* %tmp3, int %tmp5
+	%tmp7 = load int* %tmp6
+	ret int %tmp7
+}