[Hexagon] Updating doubleword shift usages to new versions.

llvm-svn: 224391
diff --git a/llvm/lib/Target/Hexagon/HexagonPeephole.cpp b/llvm/lib/Target/Hexagon/HexagonPeephole.cpp
index 6553072..a36efe7 100644
--- a/llvm/lib/Target/Hexagon/HexagonPeephole.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonPeephole.cpp
@@ -169,7 +169,7 @@
       // %vregIntReg = COPY %vregDoubleReg1:subreg_loreg.
       // and convert into
       // %vregIntReg = COPY %vregDoubleReg0:subreg_hireg.
-      if (MI->getOpcode() == Hexagon::LSRd_ri) {
+      if (MI->getOpcode() == Hexagon::S2_lsr_i_p) {
         assert(MI->getNumOperands() == 3);
         MachineOperand &Dst = MI->getOperand(0);
         MachineOperand &Src1 = MI->getOperand(1);