Index: lib/Target/ARM/ARMISelLowering.cpp =================================================================== --- lib/Target/ARM/ARMISelLowering.cpp +++ lib/Target/ARM/ARMISelLowering.cpp @@ -11101,38 +11101,57 @@ return TargetLowering::LowerAsmOperandForConstraint(Op, Constraint, Ops, DAG); } -SDValue ARMTargetLowering::LowerDivRem(SDValue Op, SelectionDAG &DAG) const { - assert((Subtarget->isTargetAEABI() || Subtarget->isTargetAndroid()) && - "Register-based DivRem lowering only"); - unsigned Opcode = Op->getOpcode(); - assert((Opcode == ISD::SDIVREM || Opcode == ISD::UDIVREM) && - "Invalid opcode for Div/Rem lowering"); - bool isSigned = (Opcode == ISD::SDIVREM); - EVT VT = Op->getValueType(0); - Type *Ty = VT.getTypeForEVT(*DAG.getContext()); - +static RTLIB::Libcall getDivRemLibcall( + const SDNode *N, MVT::SimpleValueType SVT) { + assert((N->getOpcode() == ISD::SDIVREM || N->getOpcode() == ISD::UDIVREM) && + "Unhandled Opcode in getDivRemLibcall"); + bool isSigned = N->getOpcode() == ISD::SDIVREM; RTLIB::Libcall LC; - switch (VT.getSimpleVT().SimpleTy) { + switch (SVT) { default: llvm_unreachable("Unexpected request for libcall!"); case MVT::i8: LC = isSigned ? RTLIB::SDIVREM_I8 : RTLIB::UDIVREM_I8; break; case MVT::i16: LC = isSigned ? RTLIB::SDIVREM_I16 : RTLIB::UDIVREM_I16; break; case MVT::i32: LC = isSigned ? RTLIB::SDIVREM_I32 : RTLIB::UDIVREM_I32; break; case MVT::i64: LC = isSigned ? RTLIB::SDIVREM_I64 : RTLIB::UDIVREM_I64; break; } + return LC; +} - SDValue InChain = DAG.getEntryNode(); - +static TargetLowering::ArgListTy getDivRemArgList( + const SDNode *N, LLVMContext *Context) { + assert((N->getOpcode() == ISD::SDIVREM || N->getOpcode() == ISD::UDIVREM) && + "Unhandled Opcode in getDivRemArgList"); + bool isSigned = N->getOpcode() == ISD::SDIVREM; TargetLowering::ArgListTy Args; TargetLowering::ArgListEntry Entry; - for (unsigned i = 0, e = Op->getNumOperands(); i != e; ++i) { - EVT ArgVT = Op->getOperand(i).getValueType(); - Type *ArgTy = ArgVT.getTypeForEVT(*DAG.getContext()); - Entry.Node = Op->getOperand(i); + for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) { + EVT ArgVT = N->getOperand(i).getValueType(); + Type *ArgTy = ArgVT.getTypeForEVT(*Context); + Entry.Node = N->getOperand(i); Entry.Ty = ArgTy; Entry.isSExt = isSigned; Entry.isZExt = !isSigned; Args.push_back(Entry); } + return Args; +} + +SDValue ARMTargetLowering::LowerDivRem(SDValue Op, SelectionDAG &DAG) const { + assert((Subtarget->isTargetAEABI() || Subtarget->isTargetAndroid()) && + "Register-based DivRem lowering only"); + unsigned Opcode = Op->getOpcode(); + assert((Opcode == ISD::SDIVREM || Opcode == ISD::UDIVREM) && + "Invalid opcode for Div/Rem lowering"); + bool isSigned = (Opcode == ISD::SDIVREM); + EVT VT = Op->getValueType(0); + Type *Ty = VT.getTypeForEVT(*DAG.getContext()); + + RTLIB::Libcall LC = getDivRemLibcall(Op.getNode(), + VT.getSimpleVT().SimpleTy); + SDValue InChain = DAG.getEntryNode(); + + TargetLowering::ArgListTy Args = getDivRemArgList(Op.getNode(), + DAG.getContext()); SDValue Callee = DAG.getExternalSymbol(getLibcallName(LC), getPointerTy(DAG.getDataLayout()));