diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td
index f7043303441..9c2d98b44f7 100644
--- a/lib/Target/ARM/ARMInstrInfo.td
+++ b/lib/Target/ARM/ARMInstrInfo.td
@@ -342,6 +342,4 @@ def : Pat<(i32 (zextloadi1 IntRegs:$addr)), (LDRB IntRegs:$addr)>;
 
 // truncstore bool -> truncstore byte.
 def : Pat<(truncstorei1 IntRegs:$src, IntRegs:$addr),
-          (STRB IntRegs:$addr, IntRegs:$src)>;
-def : Pat<(truncstorei1 IntRegs:$src, IntRegs:$addr),
-          (STRB IntRegs:$addr, IntRegs:$src)>;
+          (STRB IntRegs:$src, IntRegs:$addr)>;