[AArch64] Use ArrayRef::slice (NFC) (#133862)

Author: kazutakahirata

llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp

@@ -1476,8 +1476,7 @@ void AArch64DAGToDAGISel::SelectTable(SDNode *N, unsigned NumVecs, unsigned Opc,
 
   // Form a REG_SEQUENCE to force register allocation.
   unsigned Vec0Off = ExtOff + 1;
-  SmallVector<SDValue, 4> Regs(N->op_begin() + Vec0Off,
-                               N->op_begin() + Vec0Off + NumVecs);
+  SmallVector<SDValue, 4> Regs(N->ops().slice(Vec0Off, NumVecs));
   SDValue RegSeq = createQTuple(Regs);
 
   SmallVector<SDValue, 6> Ops;
@@ -1863,7 +1862,7 @@ void AArch64DAGToDAGISel::SelectWhilePair(SDNode *N, unsigned Opc) {
 void AArch64DAGToDAGISel::SelectCVTIntrinsic(SDNode *N, unsigned NumVecs,
                                              unsigned Opcode) {
   EVT VT = N->getValueType(0);
-  SmallVector<SDValue, 4> Regs(N->op_begin() + 1, N->op_begin() + 1 + NumVecs);
+  SmallVector<SDValue, 4> Regs(N->ops().slice(1, NumVecs));
   SDValue Ops = createZTuple(Regs);
   SDLoc DL(N);
   SDNode *Intrinsic = CurDAG->getMachineNode(Opcode, DL, MVT::Untyped, Ops);
@@ -2072,7 +2071,7 @@ void AArch64DAGToDAGISel::SelectClamp(SDNode *N, unsigned NumVecs,
   SDLoc DL(N);
   EVT VT = N->getValueType(0);
 
-  SmallVector<SDValue, 4> Regs(N->op_begin() + 1, N->op_begin() + 1 + NumVecs);
+  SmallVector<SDValue, 4> Regs(N->ops().slice(1, NumVecs));
   SDValue Zd = createZMulTuple(Regs);
   SDValue Zn = N->getOperand(1 + NumVecs);
   SDValue Zm = N->getOperand(2 + NumVecs);
@@ -2242,7 +2241,7 @@ void AArch64DAGToDAGISel::SelectPredicatedStore(SDNode *N, unsigned NumVecs,
   SDLoc dl(N);
 
   // Form a REG_SEQUENCE to force register allocation.
-  SmallVector<SDValue, 4> Regs(N->op_begin() + 2, N->op_begin() + 2 + NumVecs);
+  SmallVector<SDValue, 4> Regs(N->ops().slice(2, NumVecs));
   SDValue RegSeq = createZTuple(Regs);
 
   // Optimize addressing mode.
@@ -2287,7 +2286,7 @@ void AArch64DAGToDAGISel::SelectPostStore(SDNode *N, unsigned NumVecs,
 
   // Form a REG_SEQUENCE to force register allocation.
   bool Is128Bit = VT.getSizeInBits() == 128;
-  SmallVector<SDValue, 4> Regs(N->op_begin() + 1, N->op_begin() + 1 + NumVecs);
+  SmallVector<SDValue, 4> Regs(N->ops().slice(1, NumVecs));
   SDValue RegSeq = Is128Bit ? createQTuple(Regs) : createDTuple(Regs);
 
   SDValue Ops[] = {RegSeq,
@@ -2341,7 +2340,7 @@ void AArch64DAGToDAGISel::SelectLoadLane(SDNode *N, unsigned NumVecs,
   bool Narrow = VT.getSizeInBits() == 64;
 
   // Form a REG_SEQUENCE to force register allocation.
-  SmallVector<SDValue, 4> Regs(N->op_begin() + 2, N->op_begin() + 2 + NumVecs);
+  SmallVector<SDValue, 4> Regs(N->ops().slice(2, NumVecs));
 
   if (Narrow)
     transform(Regs, Regs.begin(),
@@ -2379,7 +2378,7 @@ void AArch64DAGToDAGISel::SelectPostLoadLane(SDNode *N, unsigned NumVecs,
   bool Narrow = VT.getSizeInBits() == 64;
 
   // Form a REG_SEQUENCE to force register allocation.
-  SmallVector<SDValue, 4> Regs(N->op_begin() + 1, N->op_begin() + 1 + NumVecs);
+  SmallVector<SDValue, 4> Regs(N->ops().slice(1, NumVecs));
 
   if (Narrow)
     transform(Regs, Regs.begin(),
@@ -2433,7 +2432,7 @@ void AArch64DAGToDAGISel::SelectStoreLane(SDNode *N, unsigned NumVecs,
   bool Narrow = VT.getSizeInBits() == 64;
 
   // Form a REG_SEQUENCE to force register allocation.
-  SmallVector<SDValue, 4> Regs(N->op_begin() + 2, N->op_begin() + 2 + NumVecs);
+  SmallVector<SDValue, 4> Regs(N->ops().slice(2, NumVecs));
 
   if (Narrow)
     transform(Regs, Regs.begin(),