[ARM] Minor refactoring to improve readability. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249454 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index b5eb8e2de533201a55b5c6f36304e0bd57e571c3..1d414a4f7c953a255d681101476fed2e5ee9b52b 100644 (file)
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -9835,14 +9835,13 @@ static bool isConstVecPow2(SDValue ConstVec, bool isSigned, uint64_t &C)
 ///  vcvt.s32.f32    d16, d16
 /// becomes:
 ///  vcvt.s32.f32    d16, d16, #3
-static SDValue PerformVCVTCombine(SDNode *N,
-                                  TargetLowering::DAGCombinerInfo &DCI,
+static SDValue PerformVCVTCombine(SDNode *N, SelectionDAG &DAG,
                                   const ARMSubtarget *Subtarget) {
-  SelectionDAG &DAG = DCI.DAG;
-  SDValue Op = N->getOperand(0);
+  if (!Subtarget->hasNEON())
+    return SDValue();
 
-  if (!Subtarget->hasNEON() || !Op.getValueType().isVector() ||
-      Op.getOpcode() != ISD::FMUL)
+  SDValue Op = N->getOperand(0);
+  if (!Op.getValueType().isVector() || Op.getOpcode() != ISD::FMUL)
     return SDValue();
 
   uint64_t C;
@@ -9890,14 +9889,14 @@ static SDValue PerformVCVTCombine(SDNode *N,
 ///  vdiv.f32        d16, d17, d16
 /// becomes:
 ///  vcvt.f32.s32    d16, d16, #3
-static SDValue PerformVDIVCombine(SDNode *N,
-                                  TargetLowering::DAGCombinerInfo &DCI,
+static SDValue PerformVDIVCombine(SDNode *N, SelectionDAG &DAG,
                                   const ARMSubtarget *Subtarget) {
-  SelectionDAG &DAG = DCI.DAG;
+  if (!Subtarget->hasNEON())
+    return SDValue();
+
   SDValue Op = N->getOperand(0);
   unsigned OpOpcode = Op.getNode()->getOpcode();
-
-  if (!Subtarget->hasNEON() || !N->getValueType(0).isVector() ||
+  if (!N->getValueType(0).isVector() ||
       (OpOpcode != ISD::SINT_TO_FP && OpOpcode != ISD::UINT_TO_FP))
     return SDValue();
 
@@ -10315,8 +10314,10 @@ SDValue ARMTargetLowering::PerformDAGCombine(SDNode *N,
   case ISD::VECTOR_SHUFFLE: return PerformVECTOR_SHUFFLECombine(N, DCI.DAG);
   case ARMISD::VDUPLANE: return PerformVDUPLANECombine(N, DCI);
   case ISD::FP_TO_SINT:
-  case ISD::FP_TO_UINT: return PerformVCVTCombine(N, DCI, Subtarget);
-  case ISD::FDIV:       return PerformVDIVCombine(N, DCI, Subtarget);
+  case ISD::FP_TO_UINT:
+    return PerformVCVTCombine(N, DCI.DAG, Subtarget);
+  case ISD::FDIV:
+    return PerformVDIVCombine(N, DCI.DAG, Subtarget);
   case ISD::INTRINSIC_WO_CHAIN: return PerformIntrinsicCombine(N, DCI.DAG);
   case ISD::SHL:
   case ISD::SRA: