ARM use a dedicated printer for postidx_reg operands.

llvm-svn: 136968
diff --git a/llvm/lib/Target/ARM/ARMInstrInfo.td b/llvm/lib/Target/ARM/ARMInstrInfo.td
index 1ef9dbc..99584d4 100644
--- a/llvm/lib/Target/ARM/ARMInstrInfo.td
+++ b/llvm/lib/Target/ARM/ARMInstrInfo.td
@@ -645,7 +645,7 @@
 }
 def postidx_reg : Operand<i32> {
   let EncoderMethod = "getPostIdxRegOpValue";
-  let PrintMethod = "printAddrMode3OffsetOperand";
+  let PrintMethod = "printPostIdxRegOperand";
   let ParserMatchClass = PostIdxRegAsmOperand;
   let MIOperandInfo = (ops GPR, i32imm);
 }