diff --git a/test/Transforms/InstCombine/and.ll b/test/Transforms/InstCombine/and.ll
index 7dd3d554b65..03b67f57b6e 100644
--- a/test/Transforms/InstCombine/and.ll
+++ b/test/Transforms/InstCombine/and.ll
@@ -42,4 +42,10 @@ int %test7(int %A) {         ; A & ~A == 0
         %NotA = xor int %A, -1
         %B = and int %A, %NotA
         ret int %B
-}
\ No newline at end of file
+}
+
+ubyte %test8(ubyte %A) {    ; AND associates
+	%B = and ubyte %A, 3
+	%C = and ubyte %B, 4
+	ret ubyte %C
+}
diff --git a/test/Transforms/InstCombine/mul.ll b/test/Transforms/InstCombine/mul.ll
index a0a28081067..962f599892f 100644
--- a/test/Transforms/InstCombine/mul.ll
+++ b/test/Transforms/InstCombine/mul.ll
@@ -32,3 +32,9 @@ int %test5(int %A) {
 	%B = mul int %A, 8
 	ret int %B
 }
+
+int %test6(ubyte %A) {
+	%B = mul ubyte %A, 8
+	%C = mul ubyte %B, 13
+	ret ubyte %C
+}
diff --git a/test/Transforms/InstCombine/or.ll b/test/Transforms/InstCombine/or.ll
index 5523f87c4e6..7ffd3461bc6 100644
--- a/test/Transforms/InstCombine/or.ll
+++ b/test/Transforms/InstCombine/or.ll
@@ -18,6 +18,11 @@ int %test2(int %A) {
 	ret int %B
 }
 
+ubyte %test2a(ubyte %A) {
+	%B = or ubyte %A, 255
+	ret ubyte %B
+}
+
 bool %test3(bool %A) {
 	%B = or bool %A, false
 	ret bool %B
@@ -75,3 +80,14 @@ uint %test13(uint %A) { ; (A|B)^B == A & (~B)
 	%r  = xor uint %t1, 123
 	ret uint %r
 }
+
+ubyte %test14(ubyte %A) {
+	%B = or ubyte %A, 254
+	%C = or ubyte %B, 1
+	ret ubyte %C
+}
+ubyte %test15(ubyte %A) {
+	%B = xor ubyte %A, 17
+	%C = xor ubyte %B, 17
+	ret ubyte %C
+}