diff options
Diffstat (limited to 'lib/Target/Alpha/AlphaISelPattern.cpp')
| -rw-r--r-- | lib/Target/Alpha/AlphaISelPattern.cpp | 94 |
1 files changed, 38 insertions, 56 deletions
diff --git a/lib/Target/Alpha/AlphaISelPattern.cpp b/lib/Target/Alpha/AlphaISelPattern.cpp index bef529308e..c5556ed9f2 100644 --- a/lib/Target/Alpha/AlphaISelPattern.cpp +++ b/lib/Target/Alpha/AlphaISelPattern.cpp @@ -156,21 +156,15 @@ namespace { bool isTailCall, SDOperand Callee, ArgListTy &Args, SelectionDAG &DAG); - virtual std::pair<SDOperand, SDOperand> - LowerVAStart(SDOperand Chain, SelectionDAG &DAG, SDOperand Dest); - + virtual SDOperand LowerVAStart(SDOperand Chain, SDOperand VAListP, + Value *VAListV, SelectionDAG &DAG); + virtual SDOperand LowerVACopy(SDOperand Chain, SDOperand SrcP, Value *SrcV, + SDOperand DestP, Value *DestV, + SelectionDAG &DAG); virtual std::pair<SDOperand,SDOperand> - LowerVAArgNext(SDOperand Chain, SDOperand VAList, - const Type *ArgTy, SelectionDAG &DAG); - - std::pair<SDOperand,SDOperand> - LowerVACopy(SDOperand Chain, SDOperand Src, SDOperand Dest, - SelectionDAG &DAG); - - virtual std::pair<SDOperand, SDOperand> - LowerFrameReturnAddress(bool isFrameAddr, SDOperand Chain, unsigned Depth, - SelectionDAG &DAG); - + LowerVAArg(SDOperand Chain, SDOperand VAListP, Value *VAListV, + const Type *ArgTy, SelectionDAG &DAG); + void restoreGP(MachineBasicBlock* BB) { BuildMI(BB, Alpha::BIS, 2, Alpha::R29).addReg(GP).addReg(GP); @@ -415,35 +409,34 @@ AlphaTargetLowering::LowerCallTo(SDOperand Chain, return std::make_pair(TheCall, Chain); } -std::pair<SDOperand, SDOperand> -AlphaTargetLowering::LowerVAStart(SDOperand Chain, SelectionDAG &DAG, - SDOperand Dest) { - // vastart just stores the address of the VarArgsBase and VarArgsOffset +SDOperand AlphaTargetLowering::LowerVAStart(SDOperand Chain, SDOperand VAListP, + Value *VAListV, SelectionDAG &DAG) { + // vastart stores the address of the VarArgsBase and VarArgsOffset SDOperand FR = DAG.getFrameIndex(VarArgsBase, MVT::i64); - SDOperand S1 = DAG.getNode(ISD::STORE, MVT::Other, Chain, FR, Dest, - DAG.getSrcValue(NULL)); - SDOperand SA2 = DAG.getNode(ISD::ADD, MVT::i64, Dest, + SDOperand S1 = DAG.getNode(ISD::STORE, MVT::Other, Chain, FR, VAListP, + DAG.getSrcValue(VAListV)); + SDOperand SA2 = DAG.getNode(ISD::ADD, MVT::i64, VAListP, DAG.getConstant(8, MVT::i64)); - SDOperand S2 = DAG.getNode(ISD::TRUNCSTORE, MVT::Other, S1, - DAG.getConstant(VarArgsOffset, MVT::i64), SA2, - DAG.getSrcValue(NULL), MVT::i32); - return std::make_pair(S2, S2); + return DAG.getNode(ISD::TRUNCSTORE, MVT::Other, S1, + DAG.getConstant(VarArgsOffset, MVT::i64), SA2, + DAG.getSrcValue(VAListV, 8), MVT::i32); } std::pair<SDOperand,SDOperand> AlphaTargetLowering:: -LowerVAArgNext(SDOperand Chain, SDOperand VAList, - const Type *ArgTy, SelectionDAG &DAG) { - SDOperand Base = DAG.getLoad(MVT::i64, Chain, VAList, DAG.getSrcValue(NULL)); - SDOperand Tmp = DAG.getNode(ISD::ADD, MVT::i64, VAList, +LowerVAArg(SDOperand Chain, SDOperand VAListP, Value *VAListV, + const Type *ArgTy, SelectionDAG &DAG) { + SDOperand Base = DAG.getLoad(MVT::i64, Chain, VAListP, + DAG.getSrcValue(VAListV)); + SDOperand Tmp = DAG.getNode(ISD::ADD, MVT::i64, VAListP, DAG.getConstant(8, MVT::i64)); SDOperand Offset = DAG.getNode(ISD::SEXTLOAD, MVT::i64, Base.getValue(1), - Tmp, DAG.getSrcValue(NULL), MVT::i32); + Tmp, DAG.getSrcValue(VAListV, 8), MVT::i32); SDOperand DataPtr = DAG.getNode(ISD::ADD, MVT::i64, Base, Offset); if (ArgTy->isFloatingPoint()) { //if fp && Offset < 6*8, then subtract 6*8 from DataPtr SDOperand FPDataPtr = DAG.getNode(ISD::SUB, MVT::i64, DataPtr, - DAG.getConstant(8*6, MVT::i64)); + DAG.getConstant(8*6, MVT::i64)); SDOperand CC = DAG.getSetCC(ISD::SETLT, MVT::i64, Offset, DAG.getConstant(8*6, MVT::i64)); DataPtr = DAG.getNode(ISD::SELECT, MVT::i64, CC, FPDataPtr, DataPtr); @@ -464,41 +457,30 @@ LowerVAArgNext(SDOperand Chain, SDOperand VAList, DAG.getConstant(8, MVT::i64)); SDOperand Update = DAG.getNode(ISD::TRUNCSTORE, MVT::Other, Result.getValue(1), NewOffset, - Tmp, DAG.getSrcValue(NULL), MVT::i32); + Tmp, DAG.getSrcValue(VAListV, 8), MVT::i32); Result = DAG.getNode(ISD::TRUNCATE, getValueType(ArgTy), Result); return std::make_pair(Result, Update); } -std::pair<SDOperand,SDOperand> AlphaTargetLowering:: -LowerVACopy(SDOperand Chain, SDOperand Src, SDOperand Dest, - SelectionDAG &DAG) { - //Default to returning the input list - SDOperand Val = DAG.getLoad(getPointerTy(), Chain, Src, - DAG.getSrcValue(NULL)); + +SDOperand AlphaTargetLowering:: +LowerVACopy(SDOperand Chain, SDOperand SrcP, Value *SrcV, SDOperand DestP, + Value *DestV, SelectionDAG &DAG) { + SDOperand Val = DAG.getLoad(getPointerTy(), Chain, SrcP, + DAG.getSrcValue(SrcV)); SDOperand Result = DAG.getNode(ISD::STORE, MVT::Other, Val.getValue(1), - Val, Dest, DAG.getSrcValue(NULL)); - SDOperand NP = DAG.getNode(ISD::ADD, MVT::i64, Src, + Val, DestP, DAG.getSrcValue(DestV)); + SDOperand NP = DAG.getNode(ISD::ADD, MVT::i64, SrcP, DAG.getConstant(8, MVT::i64)); - Val = DAG.getNode(ISD::SEXTLOAD, MVT::i64, Result, NP, DAG.getSrcValue(NULL), - MVT::i32); - SDOperand NPD = DAG.getNode(ISD::ADD, MVT::i64, Dest, + Val = DAG.getNode(ISD::SEXTLOAD, MVT::i64, Result, NP, + DAG.getSrcValue(SrcV, 8), MVT::i32); + SDOperand NPD = DAG.getNode(ISD::ADD, MVT::i64, DestP, DAG.getConstant(8, MVT::i64)); - Result = DAG.getNode(ISD::TRUNCSTORE, MVT::Other, Val.getValue(1), - Val, NPD, DAG.getSrcValue(NULL), MVT::i32); - return std::make_pair(Result, Result); -} - -std::pair<SDOperand, SDOperand> AlphaTargetLowering:: -LowerFrameReturnAddress(bool isFrameAddress, SDOperand Chain, unsigned Depth, - SelectionDAG &DAG) { - abort(); + return DAG.getNode(ISD::TRUNCSTORE, MVT::Other, Val.getValue(1), + Val, NPD, DAG.getSrcValue(DestV, 8), MVT::i32); } - - - - namespace { //===--------------------------------------------------------------------===// |