diff --git a/test/Transforms/InstCombine/cast-cast-to-and.ll b/test/Transforms/InstCombine/cast-cast-to-and.ll
new file mode 100644
index 00000000000..0491de93495
--- /dev/null
+++ b/test/Transforms/InstCombine/cast-cast-to-and.ll
@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep ubyte
+
+int %test1(uint %X) {
+        %Y = cast uint %X to ubyte ;; Turn into an AND
+        %Z = cast ubyte %Y to int
+        ret int %Z
+}
+
diff --git a/test/Transforms/InstCombine/zeroext-and-reduce.ll b/test/Transforms/InstCombine/zeroext-and-reduce.ll
new file mode 100644
index 00000000000..6c794a3e3f2
--- /dev/null
+++ b/test/Transforms/InstCombine/zeroext-and-reduce.ll
@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep 'and int %Y, 8'
+
+int %test1(ubyte %X) {
+        %Y = cast ubyte %X to int
+        %Z = and int %Y, 65544     ;; Prune this to and Y, 8
+        ret int %Z
+}
+