X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FMSP430%2FMSP430ISelLowering.cpp;h=f8b7e149f0dbf717261d75613444b1669f859719;hb=fef904d0e824a2c587f8c1063b6c4fbf47fec898;hp=8405789a06da8453f316aff633af6992988d8f6f;hpb=db125cfaf57cc83e7dd7453de2d509bc8efd0e5e;p=oota-llvm.git diff --git a/lib/Target/MSP430/MSP430ISelLowering.cpp b/lib/Target/MSP430/MSP430ISelLowering.cpp index 8405789a06d..f8b7e149f0d 100644 --- a/lib/Target/MSP430/MSP430ISelLowering.cpp +++ b/lib/Target/MSP430/MSP430ISelLowering.cpp @@ -29,7 +29,6 @@ #include "llvm/CodeGen/MachineFunction.h" #include "llvm/CodeGen/MachineInstrBuilder.h" #include "llvm/CodeGen/MachineRegisterInfo.h" -#include "llvm/CodeGen/PseudoSourceValue.h" #include "llvm/CodeGen/SelectionDAGISel.h" #include "llvm/CodeGen/TargetLoweringObjectFileImpl.h" #include "llvm/CodeGen/ValueTypes.h" @@ -37,7 +36,6 @@ #include "llvm/Support/Debug.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Support/raw_ostream.h" -#include "llvm/ADT/VectorExtras.h" using namespace llvm; typedef enum { @@ -61,13 +59,13 @@ HWMultMode("msp430-hwmult-mode", MSP430TargetLowering::MSP430TargetLowering(MSP430TargetMachine &tm) : TargetLowering(tm, new TargetLoweringObjectFileELF()), - Subtarget(*tm.getSubtargetImpl()), TM(tm) { + Subtarget(*tm.getSubtargetImpl()) { TD = getTargetData(); // Set up the register classes. - addRegisterClass(MVT::i8, MSP430::GR8RegisterClass); - addRegisterClass(MVT::i16, MSP430::GR16RegisterClass); + addRegisterClass(MVT::i8, &MSP430::GR8RegClass); + addRegisterClass(MVT::i16, &MSP430::GR16RegClass); // Compute derived properties from the register classes computeRegisterProperties(); @@ -79,7 +77,7 @@ MSP430TargetLowering::MSP430TargetLowering(MSP430TargetMachine &tm) : setStackPointerRegisterToSaveRestore(MSP430::SPW); setBooleanContents(ZeroOrOneBooleanContent); - setSchedulingPreference(Sched::Latency); + setBooleanVectorContents(ZeroOrOneBooleanContent); // FIXME: Is this correct? // We have post-incremented loads / stores. setIndexedLoadAction(ISD::POST_INC, MVT::i8, Legal); @@ -123,8 +121,12 @@ MSP430TargetLowering::MSP430TargetLowering(MSP430TargetMachine &tm) : setOperationAction(ISD::CTTZ, MVT::i8, Expand); setOperationAction(ISD::CTTZ, MVT::i16, Expand); + setOperationAction(ISD::CTTZ_ZERO_UNDEF, MVT::i8, Expand); + setOperationAction(ISD::CTTZ_ZERO_UNDEF, MVT::i16, Expand); setOperationAction(ISD::CTLZ, MVT::i8, Expand); setOperationAction(ISD::CTLZ, MVT::i16, Expand); + setOperationAction(ISD::CTLZ_ZERO_UNDEF, MVT::i8, Expand); + setOperationAction(ISD::CTLZ_ZERO_UNDEF, MVT::i16, Expand); setOperationAction(ISD::CTPOP, MVT::i8, Expand); setOperationAction(ISD::CTPOP, MVT::i16, Expand); @@ -192,7 +194,6 @@ SDValue MSP430TargetLowering::LowerOperation(SDValue Op, case ISD::FRAMEADDR: return LowerFRAMEADDR(Op, DAG); default: llvm_unreachable("unimplemented operand"); - return SDValue(); } } @@ -225,9 +226,9 @@ getRegForInlineAsmConstraint(const std::string &Constraint, default: break; case 'r': // GENERAL_REGS if (VT == MVT::i8) - return std::make_pair(0U, MSP430::GR8RegisterClass); + return std::make_pair(0U, &MSP430::GR8RegClass); - return std::make_pair(0U, MSP430::GR16RegisterClass); + return std::make_pair(0U, &MSP430::GR16RegClass); } } @@ -258,24 +259,26 @@ MSP430TargetLowering::LowerFormalArguments(SDValue Chain, case CallingConv::Fast: return LowerCCCArguments(Chain, CallConv, isVarArg, Ins, dl, DAG, InVals); case CallingConv::MSP430_INTR: - if (Ins.empty()) - return Chain; - else { + if (Ins.empty()) + return Chain; report_fatal_error("ISRs cannot have arguments"); - return SDValue(); - } } } SDValue -MSP430TargetLowering::LowerCall(SDValue Chain, SDValue Callee, - CallingConv::ID CallConv, bool isVarArg, - bool &isTailCall, - const SmallVectorImpl &Outs, - const SmallVectorImpl &OutVals, - const SmallVectorImpl &Ins, - DebugLoc dl, SelectionDAG &DAG, +MSP430TargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI, SmallVectorImpl &InVals) const { + SelectionDAG &DAG = CLI.DAG; + DebugLoc &dl = CLI.DL; + SmallVector &Outs = CLI.Outs; + SmallVector &OutVals = CLI.OutVals; + SmallVector &Ins = CLI.Ins; + SDValue Chain = CLI.Chain; + SDValue Callee = CLI.Callee; + bool &isTailCall = CLI.IsTailCall; + CallingConv::ID CallConv = CLI.CallConv; + bool isVarArg = CLI.IsVarArg; + // MSP430 target does not yet support tail call optimization. isTailCall = false; @@ -288,7 +291,6 @@ MSP430TargetLowering::LowerCall(SDValue Chain, SDValue Callee, Outs, OutVals, Ins, dl, DAG, InVals); case CallingConv::MSP430_INTR: report_fatal_error("ISRs cannot be called directly"); - return SDValue(); } } @@ -313,7 +315,7 @@ MSP430TargetLowering::LowerCCCArguments(SDValue Chain, // Assign locations to all of the incoming arguments. SmallVector ArgLocs; CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(), - getTargetMachine(), ArgLocs, *DAG.getContext()); + getTargetMachine(), ArgLocs, *DAG.getContext()); CCInfo.AnalyzeFormalArguments(Ins, CC_MSP430); assert(!isVarArg && "Varargs not supported yet"); @@ -333,8 +335,7 @@ MSP430TargetLowering::LowerCCCArguments(SDValue Chain, llvm_unreachable(0); } case MVT::i16: - unsigned VReg = - RegInfo.createVirtualRegister(MSP430::GR16RegisterClass); + unsigned VReg = RegInfo.createVirtualRegister(&MSP430::GR16RegClass); RegInfo.addLiveIn(VA.getLocReg(), VReg); SDValue ArgValue = DAG.getCopyFromReg(Chain, dl, VReg, RegVT); @@ -371,7 +372,7 @@ MSP430TargetLowering::LowerCCCArguments(SDValue Chain, SDValue FIN = DAG.getFrameIndex(FI, MVT::i16); InVals.push_back(DAG.getLoad(VA.getLocVT(), dl, Chain, FIN, MachinePointerInfo::getFixedStack(FI), - false, false, 0)); + false, false, false, 0)); } } @@ -389,14 +390,12 @@ MSP430TargetLowering::LowerReturn(SDValue Chain, SmallVector RVLocs; // ISRs cannot return any value. - if (CallConv == CallingConv::MSP430_INTR && !Outs.empty()) { + if (CallConv == CallingConv::MSP430_INTR && !Outs.empty()) report_fatal_error("ISRs cannot return any value"); - return SDValue(); - } // CCState - Info about the registers and stack slot. CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(), - getTargetMachine(), RVLocs, *DAG.getContext()); + getTargetMachine(), RVLocs, *DAG.getContext()); // Analize return values. CCInfo.AnalyzeReturn(Outs, RetCC_MSP430); @@ -450,7 +449,7 @@ MSP430TargetLowering::LowerCCCCallTo(SDValue Chain, SDValue Callee, // Analyze operands of the call, assigning locations to each operand. SmallVector ArgLocs; CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(), - getTargetMachine(), ArgLocs, *DAG.getContext()); + getTargetMachine(), ArgLocs, *DAG.getContext()); CCInfo.AnalyzeCallOperands(Outs, CC_MSP430); @@ -573,7 +572,7 @@ MSP430TargetLowering::LowerCallResult(SDValue Chain, SDValue InFlag, // Assign locations to each value returned by this call. SmallVector RVLocs; CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(), - getTargetMachine(), RVLocs, *DAG.getContext()); + getTargetMachine(), RVLocs, *DAG.getContext()); CCInfo.AnalyzeCallResult(Ins, RetCC_MSP430); @@ -598,8 +597,7 @@ SDValue MSP430TargetLowering::LowerShifts(SDValue Op, // Expand non-constant shifts to loops: if (!isa(N->getOperand(1))) switch (Opc) { - default: - assert(0 && "Invalid shift opcode!"); + default: llvm_unreachable("Invalid shift opcode!"); case ISD::SHL: return DAG.getNode(MSP430ISD::SHL, dl, VT, N->getOperand(0), N->getOperand(1)); @@ -650,7 +648,7 @@ SDValue MSP430TargetLowering::LowerExternalSymbol(SDValue Op, const char *Sym = cast(Op)->getSymbol(); SDValue Result = DAG.getTargetExternalSymbol(Sym, getPointerTy()); - return DAG.getNode(MSP430ISD::Wrapper, dl, getPointerTy(), Result);; + return DAG.getNode(MSP430ISD::Wrapper, dl, getPointerTy(), Result); } SDValue MSP430TargetLowering::LowerBlockAddress(SDValue Op, @@ -659,7 +657,7 @@ SDValue MSP430TargetLowering::LowerBlockAddress(SDValue Op, const BlockAddress *BA = cast(Op)->getBlockAddress(); SDValue Result = DAG.getBlockAddress(BA, getPointerTy(), /*isTarget=*/true); - return DAG.getNode(MSP430ISD::Wrapper, dl, getPointerTy(), Result);; + return DAG.getNode(MSP430ISD::Wrapper, dl, getPointerTy(), Result); } static SDValue EmitCMP(SDValue &LHS, SDValue &RHS, SDValue &TargetCC, @@ -907,13 +905,13 @@ SDValue MSP430TargetLowering::LowerRETURNADDR(SDValue Op, return DAG.getLoad(getPointerTy(), dl, DAG.getEntryNode(), DAG.getNode(ISD::ADD, dl, getPointerTy(), FrameAddr, Offset), - MachinePointerInfo(), false, false, 0); + MachinePointerInfo(), false, false, false, 0); } // Just load the return address. SDValue RetAddrFI = getReturnAddressFrameIndex(DAG); return DAG.getLoad(getPointerTy(), dl, DAG.getEntryNode(), - RetAddrFI, MachinePointerInfo(), false, false, 0); + RetAddrFI, MachinePointerInfo(), false, false, false, 0); } SDValue MSP430TargetLowering::LowerFRAMEADDR(SDValue Op, @@ -929,7 +927,7 @@ SDValue MSP430TargetLowering::LowerFRAMEADDR(SDValue Op, while (Depth--) FrameAddr = DAG.getLoad(VT, dl, DAG.getEntryNode(), FrameAddr, MachinePointerInfo(), - false, false, 0); + false, false, false, 0); return FrameAddr; } @@ -1027,31 +1025,30 @@ MSP430TargetLowering::EmitShiftInstr(MachineInstr *MI, unsigned Opc; const TargetRegisterClass * RC; switch (MI->getOpcode()) { - default: - assert(0 && "Invalid shift opcode!"); + default: llvm_unreachable("Invalid shift opcode!"); case MSP430::Shl8: Opc = MSP430::SHL8r1; - RC = MSP430::GR8RegisterClass; + RC = &MSP430::GR8RegClass; break; case MSP430::Shl16: Opc = MSP430::SHL16r1; - RC = MSP430::GR16RegisterClass; + RC = &MSP430::GR16RegClass; break; case MSP430::Sra8: Opc = MSP430::SAR8r1; - RC = MSP430::GR8RegisterClass; + RC = &MSP430::GR8RegClass; break; case MSP430::Sra16: Opc = MSP430::SAR16r1; - RC = MSP430::GR16RegisterClass; + RC = &MSP430::GR16RegClass; break; case MSP430::Srl8: Opc = MSP430::SAR8r1c; - RC = MSP430::GR8RegisterClass; + RC = &MSP430::GR8RegClass; break; case MSP430::Srl16: Opc = MSP430::SAR16r1c; - RC = MSP430::GR16RegisterClass; + RC = &MSP430::GR16RegClass; break; } @@ -1079,8 +1076,8 @@ MSP430TargetLowering::EmitShiftInstr(MachineInstr *MI, LoopBB->addSuccessor(RemBB); LoopBB->addSuccessor(LoopBB); - unsigned ShiftAmtReg = RI.createVirtualRegister(MSP430::GR8RegisterClass); - unsigned ShiftAmtReg2 = RI.createVirtualRegister(MSP430::GR8RegisterClass); + unsigned ShiftAmtReg = RI.createVirtualRegister(&MSP430::GR8RegClass); + unsigned ShiftAmtReg2 = RI.createVirtualRegister(&MSP430::GR8RegClass); unsigned ShiftReg = RI.createVirtualRegister(RC); unsigned ShiftReg2 = RI.createVirtualRegister(RC); unsigned ShiftAmtSrcReg = MI->getOperand(2).getReg();