Remove unneeded changes

Created using spr 1.3.6-beta.1

Author: wangpc-pp

llvm/lib/Target/RISCV/RISCVFoldMasks.cpp

@@ -123,7 +123,6 @@ bool RISCVFoldMasks::convertVMergeToVMv(MachineInstr &MI) const {
                                            TRI->lookThruCopyLike(FalseReg, MRI))
     return false;
 
-  // assert(MI.getOperand(4).isReg() && MI.getOperand(4).getReg() == RISCV::V0);
   if (!isAllOnesMask(MI.getOperand(4)))
     return false;
 

llvm/lib/Target/RISCV/RISCVRegisterInfo.td

@@ -549,7 +549,7 @@ def VRM8 : VReg<VM8VTs, (add V8M8, V16M8, V24M8, V0M8), 8>;
 
 def VRM8NoV0 : VReg<VM8VTs, (sub VRM8, V0M8), 8>;
 
-def VMV0 : VReg<VMaskVTs, (add V0, V0, V0, V0, V0), 1>;
+def VMV0 : VReg<VMaskVTs, (add V0), 1>;
 
 let RegInfos = XLenRI in {
 def GPRF16  : RISCVRegisterClass<[f16], 16, (add GPR)>;