[RISCV] Remove unused arg in getDemanded in RISCVInsertVSETVLI. NFC

Author: lukel97

llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp

@@ -337,9 +337,7 @@ static bool areCompatibleVTYPEs(uint64_t CurVType, uint64_t NewVType,
 }
 
 /// Return the fields and properties demanded by the provided instruction.
-DemandedFields getDemanded(const MachineInstr &MI,
-                           const MachineRegisterInfo *MRI,
-                           const RISCVSubtarget *ST) {
+DemandedFields getDemanded(const MachineInstr &MI, const RISCVSubtarget *ST) {
   // Warning: This function has to work on both the lowered (i.e. post
   // emitVSETVLIs) and pre-lowering forms.  The main implication of this is
   // that it can't use the value of a SEW, VL, or Policy operand as they might
@@ -1072,7 +1070,7 @@ bool RISCVInsertVSETVLI::needVSETVLI(const MachineInstr &MI,
   if (!CurInfo.isValid() || CurInfo.isUnknown() || CurInfo.hasSEWLMULRatioOnly())
     return true;
 
-  DemandedFields Used = getDemanded(MI, MRI, ST);
+  DemandedFields Used = getDemanded(MI, ST);
 
   // A slidedown/slideup with an *undefined* merge op can freely clobber
   // elements not copied from the source vector (e.g. masked off, tail, or
@@ -1163,7 +1161,7 @@ void RISCVInsertVSETVLI::transferBefore(VSETVLIInfo &Info,
   if (!Info.isValid() || Info.isUnknown())
     Info = NewInfo;
 
-  DemandedFields Demanded = getDemanded(MI, MRI, ST);
+  DemandedFields Demanded = getDemanded(MI, ST);
   const VSETVLIInfo IncomingInfo = adjustIncoming(PrevInfo, NewInfo, Demanded);
 
   // If MI only demands that VL has the same zeroness, we only need to set the
@@ -1572,7 +1570,7 @@ bool RISCVCoalesceVSETVLI::coalesceVSETVLIs(MachineBasicBlock &MBB) {
   for (MachineInstr &MI : make_range(MBB.rbegin(), MBB.rend())) {
 
     if (!isVectorConfigInstr(MI)) {
-      Used.doUnion(getDemanded(MI, MRI, ST));
+      Used.doUnion(getDemanded(MI, ST));
       if (MI.isCall() || MI.isInlineAsm() ||
           MI.modifiesRegister(RISCV::VL, /*TRI=*/nullptr) ||
           MI.modifiesRegister(RISCV::VTYPE, /*TRI=*/nullptr))
@@ -1645,7 +1643,7 @@ bool RISCVCoalesceVSETVLI::coalesceVSETVLIs(MachineBasicBlock &MBB) {
       }
     }
     NextMI = &MI;
-    Used = getDemanded(MI, MRI, ST);
+    Used = getDemanded(MI, ST);
   }
 
   NumCoalescedVSETVL += ToDelete.size();