Track IR ordering of SelectionDAG nodes 2/4.

Change SelectionDAG::getXXXNode() interfaces as well as call sites of
these functions to pass in SDLoc instead of DebugLoc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182703 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp
index 666fbdd..2bcaa98 100644
--- a/lib/Target/Mips/MipsISelLowering.cpp
+++ b/lib/Target/Mips/MipsISelLowering.cpp
@@ -83,7 +83,7 @@
   EVT Ty = Op.getValueType();
 
   if (GlobalAddressSDNode *N = dyn_cast<GlobalAddressSDNode>(Op))
-    return DAG.getTargetGlobalAddress(N->getGlobal(), Op.getDebugLoc(), Ty, 0,
+    return DAG.getTargetGlobalAddress(N->getGlobal(), SDLoc(Op), Ty, 0,
                                       Flag);
   if (ExternalSymbolSDNode *N = dyn_cast<ExternalSymbolSDNode>(Op))
     return DAG.getTargetExternalSymbol(N->getSymbol(), Ty, Flag);
@@ -100,7 +100,7 @@
 }
 
 static SDValue getAddrNonPIC(SDValue Op, SelectionDAG &DAG) {
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
   EVT Ty = Op.getValueType();
   SDValue Hi = getTargetNode(Op, DAG, MipsII::MO_ABS_HI);
   SDValue Lo = getTargetNode(Op, DAG, MipsII::MO_ABS_LO);
@@ -111,7 +111,7 @@
 
 SDValue MipsTargetLowering::getAddrLocal(SDValue Op, SelectionDAG &DAG,
                                          bool HasMips64) const {
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
   EVT Ty = Op.getValueType();
   unsigned GOTFlag = HasMips64 ? MipsII::MO_GOT_PAGE : MipsII::MO_GOT;
   SDValue GOT = DAG.getNode(MipsISD::Wrapper, DL, Ty, getGlobalReg(DAG, Ty),
@@ -126,7 +126,7 @@
 
 SDValue MipsTargetLowering::getAddrGlobal(SDValue Op, SelectionDAG &DAG,
                                           unsigned Flag) const {
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
   EVT Ty = Op.getValueType();
   SDValue Tgt = DAG.getNode(MipsISD::Wrapper, DL, Ty, getGlobalReg(DAG, Ty),
                             getTargetNode(Op, DAG, Flag));
@@ -137,7 +137,7 @@
 SDValue MipsTargetLowering::getAddrGlobalLargeGOT(SDValue Op, SelectionDAG &DAG,
                                                   unsigned HiFlag,
                                                   unsigned LoFlag) const {
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
   EVT Ty = Op.getValueType();
   SDValue Hi = DAG.getNode(MipsISD::Hi, DL, Ty, getTargetNode(Op, DAG, HiFlag));
   Hi = DAG.getNode(ISD::ADD, DL, Ty, Hi, getGlobalReg(DAG, Ty));
@@ -431,7 +431,7 @@
   unsigned HI = (Ty == MVT::i32) ? Mips::HI : Mips::HI64;
   unsigned Opc = N->getOpcode() == ISD::SDIVREM ? MipsISD::DivRem16 :
                                                   MipsISD::DivRemU16;
-  DebugLoc DL = N->getDebugLoc();
+  SDLoc DL(N);
 
   SDValue DivRem = DAG.getNode(Opc, DL, MVT::Glue,
                                N->getOperand(0), N->getOperand(1));
@@ -509,7 +509,7 @@
     return Op;
 
   SDValue RHS = Op.getOperand(1);
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
 
   // Assume the 3rd operand is a CondCodeSDNode. Add code to check the type of
   // node if necessary.
@@ -521,7 +521,7 @@
 
 // Creates and returns a CMovFPT/F node.
 static SDValue createCMovFP(SelectionDAG &DAG, SDValue Cond, SDValue True,
-                            SDValue False, DebugLoc DL) {
+                            SDValue False, SDLoc DL) {
   ConstantSDNode *CC = cast<ConstantSDNode>(Cond.getOperand(2));
   bool invert = invertFPCondCodeUser((Mips::CondCode)CC->getSExtValue());
 
@@ -552,7 +552,7 @@
   if (!CN || CN->getZExtValue())
     return SDValue();
 
-  const DebugLoc DL = N->getDebugLoc();
+  const SDLoc DL(N);
   ISD::CondCode CC = cast<CondCodeSDNode>(SetCC.getOperand(2))->get();
   SDValue True = N->getOperand(1);
 
@@ -597,7 +597,7 @@
   if (SMPos != 0 || Pos + SMSize > ValTy.getSizeInBits())
     return SDValue();
 
-  return DAG.getNode(MipsISD::Ext, N->getDebugLoc(), ValTy,
+  return DAG.getNode(MipsISD::Ext, SDLoc(N), ValTy,
                      ShiftRight.getOperand(0), DAG.getConstant(Pos, MVT::i32),
                      DAG.getConstant(SMSize, MVT::i32));
 }
@@ -651,7 +651,7 @@
   if ((Shamt != SMPos0) || (SMPos0 + SMSize0 > ValTy.getSizeInBits()))
     return SDValue();
 
-  return DAG.getNode(MipsISD::Ins, N->getDebugLoc(), ValTy, Shl.getOperand(0),
+  return DAG.getNode(MipsISD::Ins, SDLoc(N), ValTy, Shl.getOperand(0),
                      DAG.getConstant(SMPos0, MVT::i32),
                      DAG.getConstant(SMSize0, MVT::i32), And0.getOperand(0));
 }
@@ -676,7 +676,7 @@
     return SDValue();
 
   EVT ValTy = N->getValueType(0);
-  DebugLoc DL = N->getDebugLoc();
+  SDLoc DL(N);
 
   SDValue Add1 = DAG.getNode(ISD::ADD, DL, ValTy, N->getOperand(0),
                              Add.getOperand(0));
@@ -1383,7 +1383,7 @@
   SDValue Chain = Op.getOperand(0);
   SDValue Table = Op.getOperand(1);
   SDValue Index = Op.getOperand(2);
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
   EVT PTy = getPointerTy();
   unsigned EntrySize =
     DAG.getMachineFunction().getJumpTableInfo()->getEntrySize(*getDataLayout());
@@ -1416,7 +1416,7 @@
   // the block to branch to if the condition is true.
   SDValue Chain = Op.getOperand(0);
   SDValue Dest = Op.getOperand(2);
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
 
   SDValue CondRes = createFPCmp(DAG, Op.getOperand(1));
 
@@ -1443,13 +1443,13 @@
     return Op;
 
   return createCMovFP(DAG, Cond, Op.getOperand(1), Op.getOperand(2),
-                      Op.getDebugLoc());
+                      SDLoc(Op));
 }
 
 SDValue MipsTargetLowering::
 lowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const
 {
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
   EVT Ty = Op.getOperand(0).getValueType();
   SDValue Cond = DAG.getNode(ISD::SETCC, DL,
                              getSetCCResultType(*DAG.getContext(), Ty),
@@ -1469,13 +1469,13 @@
   SDValue True  = DAG.getConstant(1, MVT::i32);
   SDValue False = DAG.getConstant(0, MVT::i32);
 
-  return createCMovFP(DAG, Cond, True, False, Op.getDebugLoc());
+  return createCMovFP(DAG, Cond, True, False, SDLoc(Op));
 }
 
 SDValue MipsTargetLowering::lowerGlobalAddress(SDValue Op,
                                                SelectionDAG &DAG) const {
   // FIXME there isn't actually debug info here
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
   const GlobalValue *GV = cast<GlobalAddressSDNode>(Op)->getGlobal();
 
   if (getTargetMachine().getRelocationModel() != Reloc::PIC_ && !IsN64) {
@@ -1523,7 +1523,7 @@
   // Local Exec TLS Model.
 
   GlobalAddressSDNode *GA = cast<GlobalAddressSDNode>(Op);
-  DebugLoc DL = GA->getDebugLoc();
+  SDLoc DL(GA);
   const GlobalValue *GV = GA->getGlobal();
   EVT PtrVT = getPointerTy();
 
@@ -1628,7 +1628,7 @@
   MachineFunction &MF = DAG.getMachineFunction();
   MipsFunctionInfo *FuncInfo = MF.getInfo<MipsFunctionInfo>();
 
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
   SDValue FI = DAG.getFrameIndex(FuncInfo->getVarArgsFrameIndex(),
                                  getPointerTy());
 
@@ -1644,7 +1644,7 @@
   EVT TyY = Op.getOperand(1).getValueType();
   SDValue Const1 = DAG.getConstant(1, MVT::i32);
   SDValue Const31 = DAG.getConstant(31, MVT::i32);
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
   SDValue Res;
 
   // If operand is of type f64, extract the upper 32-bit. Otherwise, bitcast it
@@ -1689,7 +1689,7 @@
   unsigned WidthY = Op.getOperand(1).getValueSizeInBits();
   EVT TyX = MVT::getIntegerVT(WidthX), TyY = MVT::getIntegerVT(WidthY);
   SDValue Const1 = DAG.getConstant(1, MVT::i32);
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
 
   // Bitcast to integer nodes.
   SDValue X = DAG.getNode(ISD::BITCAST, DL, TyX, Op.getOperand(0));
@@ -1742,7 +1742,7 @@
 
 static SDValue lowerFABS32(SDValue Op, SelectionDAG &DAG, bool HasR2) {
   SDValue Res, Const1 = DAG.getConstant(1, MVT::i32);
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
 
   // If operand is of type f64, extract the upper 32-bit. Otherwise, bitcast it
   // to i32.
@@ -1771,7 +1771,7 @@
 
 static SDValue lowerFABS64(SDValue Op, SelectionDAG &DAG, bool HasR2) {
   SDValue Res, Const1 = DAG.getConstant(1, MVT::i32);
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
 
   // Bitcast to integer node.
   SDValue X = DAG.getNode(ISD::BITCAST, DL, MVT::i64, Op.getOperand(0));
@@ -1806,7 +1806,7 @@
   MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo();
   MFI->setFrameAddressIsTaken(true);
   EVT VT = Op.getValueType();
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
   SDValue FrameAddr = DAG.getCopyFromReg(DAG.getEntryNode(), DL,
                                          IsN64 ? Mips::FP_64 : Mips::FP, VT);
   return FrameAddr;
@@ -1826,7 +1826,7 @@
 
   // Return RA, which contains the return address. Mark it an implicit live-in.
   unsigned Reg = MF.addLiveIn(RA, getRegClassFor(VT));
-  return DAG.getCopyFromReg(DAG.getEntryNode(), Op.getDebugLoc(), Reg, VT);
+  return DAG.getCopyFromReg(DAG.getEntryNode(), SDLoc(Op), Reg, VT);
 }
 
 // An EH_RETURN is the result of lowering llvm.eh.return which in turn is
@@ -1842,7 +1842,7 @@
   SDValue Chain     = Op.getOperand(0);
   SDValue Offset    = Op.getOperand(1);
   SDValue Handler   = Op.getOperand(2);
-  DebugLoc DL       = Op.getDebugLoc();
+  SDLoc DL(Op);
   EVT Ty = IsN64 ? MVT::i64 : MVT::i32;
 
   // Store stack offset in V1, store jump target in V0. Glue CopyToReg and
@@ -1862,14 +1862,14 @@
   // FIXME: Need pseudo-fence for 'singlethread' fences
   // FIXME: Set SType for weaker fences where supported/appropriate.
   unsigned SType = 0;
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
   return DAG.getNode(MipsISD::Sync, DL, MVT::Other, Op.getOperand(0),
                      DAG.getConstant(SType, MVT::i32));
 }
 
 SDValue MipsTargetLowering::lowerShiftLeftParts(SDValue Op,
                                                 SelectionDAG &DAG) const {
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
   SDValue Lo = Op.getOperand(0), Hi = Op.getOperand(1);
   SDValue Shamt = Op.getOperand(2);
 
@@ -1900,7 +1900,7 @@
 
 SDValue MipsTargetLowering::lowerShiftRightParts(SDValue Op, SelectionDAG &DAG,
                                                  bool IsSRA) const {
-  DebugLoc DL = Op.getDebugLoc();
+  SDLoc DL(Op);
   SDValue Lo = Op.getOperand(0), Hi = Op.getOperand(1);
   SDValue Shamt = Op.getOperand(2);
 
@@ -1944,7 +1944,7 @@
   SDValue Ptr = LD->getBasePtr();
   EVT VT = LD->getValueType(0), MemVT = LD->getMemoryVT();
   EVT BasePtrVT = Ptr.getValueType();
-  DebugLoc DL = LD->getDebugLoc();
+  SDLoc DL(LD);
   SDVTList VTList = DAG.getVTList(VT, MVT::Other);
 
   if (Offset)
@@ -2010,7 +2010,7 @@
   //  (set tmp1, (lwr baseptr, tmp0))
   //  (set tmp2, (shl tmp1, 32))
   //  (set dst, (srl tmp2, 32))
-  DebugLoc DL = LD->getDebugLoc();
+  SDLoc DL(LD);
   SDValue Const32 = DAG.getConstant(32, MVT::i32);
   SDValue SLL = DAG.getNode(ISD::SHL, DL, MVT::i64, LWR, Const32);
   SDValue SRL = DAG.getNode(ISD::SRL, DL, MVT::i64, SLL, Const32);
@@ -2022,7 +2022,7 @@
                              SDValue Chain, unsigned Offset) {
   SDValue Ptr = SD->getBasePtr(), Value = SD->getValue();
   EVT MemVT = SD->getMemoryVT(), BasePtrVT = Ptr.getValueType();
-  DebugLoc DL = SD->getDebugLoc();
+  SDLoc DL(SD);
   SDVTList VTList = DAG.getVTList(MVT::Other);
 
   if (Offset)
@@ -2071,10 +2071,10 @@
     return SDValue();
 
   EVT FPTy = EVT::getFloatingPointVT(Val.getValueSizeInBits());
-  SDValue Tr = DAG.getNode(MipsISD::TruncIntFP, Val.getDebugLoc(), FPTy,
+  SDValue Tr = DAG.getNode(MipsISD::TruncIntFP, SDLoc(Val), FPTy,
                            Val.getOperand(0));
 
-  return DAG.getStore(SD->getChain(), SD->getDebugLoc(), Tr, SD->getBasePtr(),
+  return DAG.getStore(SD->getChain(), SDLoc(SD), Tr, SD->getBasePtr(),
                       SD->getPointerInfo(), SD->isVolatile(),
                       SD->isNonTemporal(), SD->getAlignment());
 }
@@ -2108,16 +2108,16 @@
   EVT ValTy = Op->getValueType(0);
   int FI = MFI->CreateFixedObject(Op.getValueSizeInBits() / 8, 0, false);
   SDValue InArgsAddr = DAG.getFrameIndex(FI, ValTy);
-  return DAG.getNode(ISD::ADD, Op->getDebugLoc(), ValTy, InArgsAddr,
+  return DAG.getNode(ISD::ADD, SDLoc(Op), ValTy, InArgsAddr,
                      DAG.getConstant(0, ValTy));
 }
 
 SDValue MipsTargetLowering::lowerFP_TO_SINT(SDValue Op,
                                             SelectionDAG &DAG) const {
   EVT FPTy = EVT::getFloatingPointVT(Op.getValueSizeInBits());
-  SDValue Trunc = DAG.getNode(MipsISD::TruncIntFP, Op.getDebugLoc(), FPTy,
+  SDValue Trunc = DAG.getNode(MipsISD::TruncIntFP, SDLoc(Op), FPTy,
                               Op.getOperand(0));
-  return DAG.getNode(ISD::BITCAST, Op.getDebugLoc(), Op.getValueType(), Trunc);
+  return DAG.getNode(ISD::BITCAST, SDLoc(Op), Op.getValueType(), Trunc);
 }
 
 //===----------------------------------------------------------------------===//
@@ -2238,7 +2238,7 @@
 
 SDValue
 MipsTargetLowering::passArgOnStack(SDValue StackPtr, unsigned Offset,
-                                   SDValue Chain, SDValue Arg, DebugLoc DL,
+                                   SDValue Chain, SDValue Arg, SDLoc DL,
                                    bool IsTailCall, SelectionDAG &DAG) const {
   if (!IsTailCall) {
     SDValue PtrOff = DAG.getNode(ISD::ADD, DL, getPointerTy(), StackPtr,
@@ -2313,7 +2313,7 @@
 MipsTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
                               SmallVectorImpl<SDValue> &InVals) const {
   SelectionDAG &DAG                     = CLI.DAG;
-  DebugLoc &DL                          = CLI.DL;
+  SDLoc DL                              = CLI.DL;
   SmallVector<ISD::OutputArg, 32> &Outs = CLI.Outs;
   SmallVector<SDValue, 32> &OutVals     = CLI.OutVals;
   SmallVector<ISD::InputArg, 32> &Ins   = CLI.Ins;
@@ -2513,7 +2513,7 @@
 MipsTargetLowering::LowerCallResult(SDValue Chain, SDValue InFlag,
                                     CallingConv::ID CallConv, bool IsVarArg,
                                     const SmallVectorImpl<ISD::InputArg> &Ins,
-                                    DebugLoc DL, SelectionDAG &DAG,
+                                    SDLoc DL, SelectionDAG &DAG,
                                     SmallVectorImpl<SDValue> &InVals,
                                     const SDNode *CallNode,
                                     const Type *RetTy) const {
@@ -2552,7 +2552,7 @@
                                          CallingConv::ID CallConv,
                                          bool IsVarArg,
                                       const SmallVectorImpl<ISD::InputArg> &Ins,
-                                         DebugLoc DL, SelectionDAG &DAG,
+                                         SDLoc DL, SelectionDAG &DAG,
                                          SmallVectorImpl<SDValue> &InVals)
                                           const {
   MachineFunction &MF = DAG.getMachineFunction();
@@ -2718,7 +2718,7 @@
                                 CallingConv::ID CallConv, bool IsVarArg,
                                 const SmallVectorImpl<ISD::OutputArg> &Outs,
                                 const SmallVectorImpl<SDValue> &OutVals,
-                                DebugLoc DL, SelectionDAG &DAG) const {
+                                SDLoc DL, SelectionDAG &DAG) const {
   // CCValAssign - represent the assignment of
   // the return value to a location
   SmallVector<CCValAssign, 16> RVLocs;
@@ -3328,7 +3328,7 @@
 }
 
 void MipsTargetLowering::
-copyByValRegs(SDValue Chain, DebugLoc DL, std::vector<SDValue> &OutChains,
+copyByValRegs(SDValue Chain, SDLoc DL, std::vector<SDValue> &OutChains,
               SelectionDAG &DAG, const ISD::ArgFlagsTy &Flags,
               SmallVectorImpl<SDValue> &InVals, const Argument *FuncArg,
               const MipsCC &CC, const ByValArgInfo &ByVal) const {
@@ -3372,7 +3372,7 @@
 
 // Copy byVal arg to registers and stack.
 void MipsTargetLowering::
-passByValArg(SDValue Chain, DebugLoc DL,
+passByValArg(SDValue Chain, SDLoc DL,
              std::deque< std::pair<unsigned, SDValue> > &RegsToPass,
              SmallVector<SDValue, 8> &MemOpChains, SDValue StackPtr,
              MachineFrameInfo *MFI, SelectionDAG &DAG, SDValue Arg,
@@ -3470,7 +3470,7 @@
 void
 MipsTargetLowering::writeVarArgRegs(std::vector<SDValue> &OutChains,
                                     const MipsCC &CC, SDValue Chain,
-                                    DebugLoc DL, SelectionDAG &DAG) const {
+                                    SDLoc DL, SelectionDAG &DAG) const {
   unsigned NumRegs = CC.numIntArgRegs();
   const uint16_t *ArgRegs = CC.intArgRegs();
   const CCState &CCInfo = CC.getCCInfo();