diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td
index c965d1d0931..c2dd3a89321 100644
--- a/lib/Target/ARM/ARMInstrThumb2.td
+++ b/lib/Target/ARM/ARMInstrThumb2.td
@@ -482,6 +482,8 @@ defm t2ORN  : T2I_bin_irs<"orn", BinOpFrag<(or  node:$LHS, (not node:$RHS))>>;
 def : Thumb2Pat<(or      GPR:$src, t2_so_imm_not:$imm),
                 (t2ORNri GPR:$src, t2_so_imm_not:$imm)>;
 
+// Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
+let AddedComplexity = 1 in
 defm t2MVN  : T2I_un_irs  <"mvn", UnOpFrag<(not node:$Src)>, 1, 1>;
 
 def : Thumb2Pat<(t2_so_imm_not:$src),
diff --git a/test/CodeGen/Thumb2/thumb2-mvn2.ll b/test/CodeGen/Thumb2/thumb2-mvn2.ll
new file mode 100644
index 00000000000..178f02b9e76
--- /dev/null
+++ b/test/CodeGen/Thumb2/thumb2-mvn2.ll
@@ -0,0 +1,11 @@
+; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {mvn\\W*r\[0-9\]*,\\W*r\[0-9\]*} | count 2
+
+define i32 @f1(i32 %a) {
+    %tmp = xor i32 4294967295, %a
+    ret i32 %tmp
+}
+
+define i32 @f2(i32 %a) {
+    %tmp = xor i32 %a, 4294967295
+    ret i32 %tmp
+}