diff options
Diffstat (limited to 'contrib/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp')
| -rw-r--r-- | contrib/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp | 1627 |
1 files changed, 1125 insertions, 502 deletions
diff --git a/contrib/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp b/contrib/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp index 6e01a5a..6a8be75 100644 --- a/contrib/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp +++ b/contrib/llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp @@ -51,6 +51,8 @@ static bool IsPTXVectorType(MVT VT) { switch (VT.SimpleTy) { default: return false; + case MVT::v2i1: + case MVT::v4i1: case MVT::v2i8: case MVT::v4i8: case MVT::v2i16: @@ -65,6 +67,37 @@ static bool IsPTXVectorType(MVT VT) { } } +/// ComputePTXValueVTs - For the given Type \p Ty, returns the set of primitive +/// EVTs that compose it. Unlike ComputeValueVTs, this will break apart vectors +/// into their primitive components. +/// NOTE: This is a band-aid for code that expects ComputeValueVTs to return the +/// same number of types as the Ins/Outs arrays in LowerFormalArguments, +/// LowerCall, and LowerReturn. +static void ComputePTXValueVTs(const TargetLowering &TLI, Type *Ty, + SmallVectorImpl<EVT> &ValueVTs, + SmallVectorImpl<uint64_t> *Offsets = 0, + uint64_t StartingOffset = 0) { + SmallVector<EVT, 16> TempVTs; + SmallVector<uint64_t, 16> TempOffsets; + + ComputeValueVTs(TLI, Ty, TempVTs, &TempOffsets, StartingOffset); + for (unsigned i = 0, e = TempVTs.size(); i != e; ++i) { + EVT VT = TempVTs[i]; + uint64_t Off = TempOffsets[i]; + if (VT.isVector()) + for (unsigned j = 0, je = VT.getVectorNumElements(); j != je; ++j) { + ValueVTs.push_back(VT.getVectorElementType()); + if (Offsets) + Offsets->push_back(Off+j*VT.getVectorElementType().getStoreSize()); + } + else { + ValueVTs.push_back(VT); + if (Offsets) + Offsets->push_back(Off); + } + } +} + // NVPTXTargetLowering Constructor. NVPTXTargetLowering::NVPTXTargetLowering(NVPTXTargetMachine &TM) : TargetLowering(TM, new NVPTXTargetObjectFile()), nvTM(&TM), @@ -90,7 +123,6 @@ NVPTXTargetLowering::NVPTXTargetLowering(NVPTXTargetMachine &TM) setSchedulingPreference(Sched::Source); addRegisterClass(MVT::i1, &NVPTX::Int1RegsRegClass); - addRegisterClass(MVT::i8, &NVPTX::Int8RegsRegClass); addRegisterClass(MVT::i16, &NVPTX::Int16RegsRegClass); addRegisterClass(MVT::i32, &NVPTX::Int32RegsRegClass); addRegisterClass(MVT::i64, &NVPTX::Int64RegsRegClass); @@ -106,10 +138,12 @@ NVPTXTargetLowering::NVPTXTargetLowering(NVPTXTargetMachine &TM) setOperationAction(ISD::BR_CC, MVT::i16, Expand); setOperationAction(ISD::BR_CC, MVT::i32, Expand); setOperationAction(ISD::BR_CC, MVT::i64, Expand); - setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i64, Expand); - setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i32, Expand); - setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i16, Expand); - setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i8, Expand); + // Some SIGN_EXTEND_INREG can be done using cvt instruction. + // For others we will expand to a SHL/SRA pair. + setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i64, Legal); + setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i32, Legal); + setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i16, Legal); + setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i8 , Legal); setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1, Expand); if (nvptxSubtarget.hasROT64()) { @@ -170,6 +204,9 @@ NVPTXTargetLowering::NVPTXTargetLowering(NVPTXTargetMachine &TM) // TRAP can be lowered to PTX trap setOperationAction(ISD::TRAP, MVT::Other, Legal); + setOperationAction(ISD::ADDC, MVT::i64, Expand); + setOperationAction(ISD::ADDE, MVT::i64, Expand); + // Register custom handling for vector loads/stores for (int i = MVT::FIRST_VECTOR_VALUETYPE; i <= MVT::LAST_VECTOR_VALUETYPE; ++i) { @@ -181,6 +218,25 @@ NVPTXTargetLowering::NVPTXTargetLowering(NVPTXTargetMachine &TM) } } + // Custom handling for i8 intrinsics + setOperationAction(ISD::INTRINSIC_W_CHAIN, MVT::i8, Custom); + + setOperationAction(ISD::CTLZ, MVT::i16, Legal); + setOperationAction(ISD::CTLZ, MVT::i32, Legal); + setOperationAction(ISD::CTLZ, MVT::i64, Legal); + setOperationAction(ISD::CTLZ_ZERO_UNDEF, MVT::i16, Legal); + setOperationAction(ISD::CTLZ_ZERO_UNDEF, MVT::i32, Legal); + setOperationAction(ISD::CTLZ_ZERO_UNDEF, MVT::i64, Legal); + setOperationAction(ISD::CTTZ, MVT::i16, Expand); + setOperationAction(ISD::CTTZ, MVT::i32, Expand); + setOperationAction(ISD::CTTZ, MVT::i64, Expand); + setOperationAction(ISD::CTTZ_ZERO_UNDEF, MVT::i16, Expand); + setOperationAction(ISD::CTTZ_ZERO_UNDEF, MVT::i32, Expand); + setOperationAction(ISD::CTTZ_ZERO_UNDEF, MVT::i64, Expand); + setOperationAction(ISD::CTPOP, MVT::i16, Legal); + setOperationAction(ISD::CTPOP, MVT::i32, Legal); + setOperationAction(ISD::CTPOP, MVT::i64, Legal); + // Now deduce the information based on the above mentioned // actions computeRegisterProperties(); @@ -196,8 +252,6 @@ const char *NVPTXTargetLowering::getTargetNodeName(unsigned Opcode) const { return "NVPTXISD::RET_FLAG"; case NVPTXISD::Wrapper: return "NVPTXISD::Wrapper"; - case NVPTXISD::NVBuiltin: - return "NVPTXISD::NVBuiltin"; case NVPTXISD::DeclareParam: return "NVPTXISD::DeclareParam"; case NVPTXISD::DeclareScalarParam: @@ -210,14 +264,20 @@ const char *NVPTXTargetLowering::getTargetNodeName(unsigned Opcode) const { return "NVPTXISD::PrintCall"; case NVPTXISD::LoadParam: return "NVPTXISD::LoadParam"; + case NVPTXISD::LoadParamV2: + return "NVPTXISD::LoadParamV2"; + case NVPTXISD::LoadParamV4: + return "NVPTXISD::LoadParamV4"; case NVPTXISD::StoreParam: return "NVPTXISD::StoreParam"; + case NVPTXISD::StoreParamV2: + return "NVPTXISD::StoreParamV2"; + case NVPTXISD::StoreParamV4: + return "NVPTXISD::StoreParamV4"; case NVPTXISD::StoreParamS32: return "NVPTXISD::StoreParamS32"; case NVPTXISD::StoreParamU32: return "NVPTXISD::StoreParamU32"; - case NVPTXISD::MoveToParam: - return "NVPTXISD::MoveToParam"; case NVPTXISD::CallArgBegin: return "NVPTXISD::CallArgBegin"; case NVPTXISD::CallArg: @@ -236,12 +296,12 @@ const char *NVPTXTargetLowering::getTargetNodeName(unsigned Opcode) const { return "NVPTXISD::Prototype"; case NVPTXISD::MoveParam: return "NVPTXISD::MoveParam"; - case NVPTXISD::MoveRetval: - return "NVPTXISD::MoveRetval"; - case NVPTXISD::MoveToRetval: - return "NVPTXISD::MoveToRetval"; case NVPTXISD::StoreRetval: return "NVPTXISD::StoreRetval"; + case NVPTXISD::StoreRetvalV2: + return "NVPTXISD::StoreRetvalV2"; + case NVPTXISD::StoreRetvalV4: + return "NVPTXISD::StoreRetvalV4"; case NVPTXISD::PseudoUseParam: return "NVPTXISD::PseudoUseParam"; case NVPTXISD::RETURN: @@ -250,6 +310,8 @@ const char *NVPTXTargetLowering::getTargetNodeName(unsigned Opcode) const { return "NVPTXISD::CallSeqBegin"; case NVPTXISD::CallSeqEnd: return "NVPTXISD::CallSeqEnd"; + case NVPTXISD::CallPrototype: + return "NVPTXISD::CallPrototype"; case NVPTXISD::LoadV2: return "NVPTXISD::LoadV2"; case NVPTXISD::LoadV4: @@ -275,89 +337,68 @@ bool NVPTXTargetLowering::shouldSplitVectorElementType(EVT VT) const { SDValue NVPTXTargetLowering::LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const { - DebugLoc dl = Op.getDebugLoc(); + SDLoc dl(Op); const GlobalValue *GV = cast<GlobalAddressSDNode>(Op)->getGlobal(); Op = DAG.getTargetGlobalAddress(GV, dl, getPointerTy()); return DAG.getNode(NVPTXISD::Wrapper, dl, getPointerTy(), Op); } -std::string NVPTXTargetLowering::getPrototype( - Type *retTy, const ArgListTy &Args, - const SmallVectorImpl<ISD::OutputArg> &Outs, unsigned retAlignment) const { +std::string +NVPTXTargetLowering::getPrototype(Type *retTy, const ArgListTy &Args, + const SmallVectorImpl<ISD::OutputArg> &Outs, + unsigned retAlignment, + const ImmutableCallSite *CS) const { bool isABI = (nvptxSubtarget.getSmVersion() >= 20); + assert(isABI && "Non-ABI compilation is not supported"); + if (!isABI) + return ""; std::stringstream O; O << "prototype_" << uniqueCallSite << " : .callprototype "; - if (retTy->getTypeID() == Type::VoidTyID) + if (retTy->getTypeID() == Type::VoidTyID) { O << "()"; - else { + } else { O << "("; - if (isABI) { - if (retTy->isPrimitiveType() || retTy->isIntegerTy()) { - unsigned size = 0; - if (const IntegerType *ITy = dyn_cast<IntegerType>(retTy)) { - size = ITy->getBitWidth(); - if (size < 32) - size = 32; - } else { - assert(retTy->isFloatingPointTy() && - "Floating point type expected here"); - size = retTy->getPrimitiveSizeInBits(); - } - - O << ".param .b" << size << " _"; - } else if (isa<PointerType>(retTy)) - O << ".param .b" << getPointerTy().getSizeInBits() << " _"; - else { - if ((retTy->getTypeID() == Type::StructTyID) || - isa<VectorType>(retTy)) { - SmallVector<EVT, 16> vtparts; - ComputeValueVTs(*this, retTy, vtparts); - unsigned totalsz = 0; - for (unsigned i = 0, e = vtparts.size(); i != e; ++i) { - unsigned elems = 1; - EVT elemtype = vtparts[i]; - if (vtparts[i].isVector()) { - elems = vtparts[i].getVectorNumElements(); - elemtype = vtparts[i].getVectorElementType(); - } - for (unsigned j = 0, je = elems; j != je; ++j) { - unsigned sz = elemtype.getSizeInBits(); - if (elemtype.isInteger() && (sz < 8)) - sz = 8; - totalsz += sz / 8; - } - } - O << ".param .align " << retAlignment << " .b8 _[" << totalsz << "]"; - } else { - assert(false && "Unknown return type"); - } + if (retTy->isPrimitiveType() || retTy->isIntegerTy()) { + unsigned size = 0; + if (const IntegerType *ITy = dyn_cast<IntegerType>(retTy)) { + size = ITy->getBitWidth(); + if (size < 32) + size = 32; + } else { + assert(retTy->isFloatingPointTy() && + "Floating point type expected here"); + size = retTy->getPrimitiveSizeInBits(); } - } else { - SmallVector<EVT, 16> vtparts; - ComputeValueVTs(*this, retTy, vtparts); - unsigned idx = 0; - for (unsigned i = 0, e = vtparts.size(); i != e; ++i) { - unsigned elems = 1; - EVT elemtype = vtparts[i]; - if (vtparts[i].isVector()) { - elems = vtparts[i].getVectorNumElements(); - elemtype = vtparts[i].getVectorElementType(); - } - for (unsigned j = 0, je = elems; j != je; ++j) { - unsigned sz = elemtype.getSizeInBits(); - if (elemtype.isInteger() && (sz < 32)) - sz = 32; - O << ".reg .b" << sz << " _"; - if (j < je - 1) - O << ", "; - ++idx; + O << ".param .b" << size << " _"; + } else if (isa<PointerType>(retTy)) { + O << ".param .b" << getPointerTy().getSizeInBits() << " _"; + } else { + if ((retTy->getTypeID() == Type::StructTyID) || isa<VectorType>(retTy)) { + SmallVector<EVT, 16> vtparts; + ComputeValueVTs(*this, retTy, vtparts); + unsigned totalsz = 0; + for (unsigned i = 0, e = vtparts.size(); i != e; ++i) { + unsigned elems = 1; + EVT elemtype = vtparts[i]; + if (vtparts[i].isVector()) { + elems = vtparts[i].getVectorNumElements(); + elemtype = vtparts[i].getVectorElementType(); + } + // TODO: no need to loop + for (unsigned j = 0, je = elems; j != je; ++j) { + unsigned sz = elemtype.getSizeInBits(); + if (elemtype.isInteger() && (sz < 8)) + sz = 8; + totalsz += sz / 8; + } } - if (i < e - 1) - O << ", "; + O << ".param .align " << retAlignment << " .b8 _[" << totalsz << "]"; + } else { + assert(false && "Unknown return type"); } } O << ") "; @@ -367,14 +408,38 @@ std::string NVPTXTargetLowering::getPrototype( bool first = true; MVT thePointerTy = getPointerTy(); - for (unsigned i = 0, e = Args.size(); i != e; ++i) { - const Type *Ty = Args[i].Ty; + unsigned OIdx = 0; + for (unsigned i = 0, e = Args.size(); i != e; ++i, ++OIdx) { + Type *Ty = Args[i].Ty; if (!first) { O << ", "; } first = false; - if (Outs[i].Flags.isByVal() == false) { + if (Outs[OIdx].Flags.isByVal() == false) { + if (Ty->isAggregateType() || Ty->isVectorTy()) { + unsigned align = 0; + const CallInst *CallI = cast<CallInst>(CS->getInstruction()); + const DataLayout *TD = getDataLayout(); + // +1 because index 0 is reserved for return type alignment + if (!llvm::getAlign(*CallI, i + 1, align)) + align = TD->getABITypeAlignment(Ty); + unsigned sz = TD->getTypeAllocSize(Ty); + O << ".param .align " << align << " .b8 "; + O << "_"; + O << "[" << sz << "]"; + // update the index for Outs + SmallVector<EVT, 16> vtparts; + ComputeValueVTs(*this, Ty, vtparts); + if (unsigned len = vtparts.size()) + OIdx += len - 1; + continue; + } + // i8 types in IR will be i16 types in SDAG + assert((getValueType(Ty) == Outs[OIdx].VT || + (getValueType(Ty) == MVT::i8 && Outs[OIdx].VT == MVT::i16)) && + "type mismatch between callee prototype and arguments"); + // scalar type unsigned sz = 0; if (isa<IntegerType>(Ty)) { sz = cast<IntegerType>(Ty)->getBitWidth(); @@ -384,10 +449,7 @@ std::string NVPTXTargetLowering::getPrototype( sz = thePointerTy.getSizeInBits(); else sz = Ty->getPrimitiveSizeInBits(); - if (isABI) - O << ".param .b" << sz << " "; - else - O << ".reg .b" << sz << " "; + O << ".param .b" << sz << " "; O << "_"; continue; } @@ -395,50 +457,72 @@ std::string NVPTXTargetLowering::getPrototype( assert(PTy && "Param with byval attribute should be a pointer type"); Type *ETy = PTy->getElementType(); - if (isABI) { - unsigned align = Outs[i].Flags.getByValAlign(); - unsigned sz = getDataLayout()->getTypeAllocSize(ETy); - O << ".param .align " << align << " .b8 "; - O << "_"; - O << "[" << sz << "]"; - continue; - } else { - SmallVector<EVT, 16> vtparts; - ComputeValueVTs(*this, ETy, vtparts); - for (unsigned i = 0, e = vtparts.size(); i != e; ++i) { - unsigned elems = 1; - EVT elemtype = vtparts[i]; - if (vtparts[i].isVector()) { - elems = vtparts[i].getVectorNumElements(); - elemtype = vtparts[i].getVectorElementType(); - } + unsigned align = Outs[OIdx].Flags.getByValAlign(); + unsigned sz = getDataLayout()->getTypeAllocSize(ETy); + O << ".param .align " << align << " .b8 "; + O << "_"; + O << "[" << sz << "]"; + } + O << ");"; + return O.str(); +} - for (unsigned j = 0, je = elems; j != je; ++j) { - unsigned sz = elemtype.getSizeInBits(); - if (elemtype.isInteger() && (sz < 32)) - sz = 32; - O << ".reg .b" << sz << " "; - O << "_"; - if (j < je - 1) - O << ", "; - } - if (i < e - 1) - O << ", "; +unsigned +NVPTXTargetLowering::getArgumentAlignment(SDValue Callee, + const ImmutableCallSite *CS, + Type *Ty, + unsigned Idx) const { + const DataLayout *TD = getDataLayout(); + unsigned Align = 0; + const Value *DirectCallee = CS->getCalledFunction(); + + if (!DirectCallee) { + // We don't have a direct function symbol, but that may be because of + // constant cast instructions in the call. + const Instruction *CalleeI = CS->getInstruction(); + assert(CalleeI && "Call target is not a function or derived value?"); + + // With bitcast'd call targets, the instruction will be the call + if (isa<CallInst>(CalleeI)) { + // Check if we have call alignment metadata + if (llvm::getAlign(*cast<CallInst>(CalleeI), Idx, Align)) + return Align; + + const Value *CalleeV = cast<CallInst>(CalleeI)->getCalledValue(); + // Ignore any bitcast instructions + while(isa<ConstantExpr>(CalleeV)) { + const ConstantExpr *CE = cast<ConstantExpr>(CalleeV); + if (!CE->isCast()) + break; + // Look through the bitcast + CalleeV = cast<ConstantExpr>(CalleeV)->getOperand(0); } - continue; + + // We have now looked past all of the bitcasts. Do we finally have a + // Function? + if (isa<Function>(CalleeV)) + DirectCallee = CalleeV; } } - O << ");"; - return O.str(); + + // Check for function alignment information if we found that the + // ultimate target is a Function + if (DirectCallee) + if (llvm::getAlign(*cast<Function>(DirectCallee), Idx, Align)) + return Align; + + // Call is indirect or alignment information is not available, fall back to + // the ABI type alignment + return TD->getABITypeAlignment(Ty); } SDValue NVPTXTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI, SmallVectorImpl<SDValue> &InVals) const { SelectionDAG &DAG = CLI.DAG; - DebugLoc &dl = CLI.DL; - SmallVector<ISD::OutputArg, 32> &Outs = CLI.Outs; - SmallVector<SDValue, 32> &OutVals = CLI.OutVals; - SmallVector<ISD::InputArg, 32> &Ins = CLI.Ins; + SDLoc dl = CLI.DL; + SmallVectorImpl<ISD::OutputArg> &Outs = CLI.Outs; + SmallVectorImpl<SDValue> &OutVals = CLI.OutVals; + SmallVectorImpl<ISD::InputArg> &Ins = CLI.Ins; SDValue Chain = CLI.Chain; SDValue Callee = CLI.Callee; bool &isTailCall = CLI.IsTailCall; @@ -447,53 +531,258 @@ SDValue NVPTXTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI, ImmutableCallSite *CS = CLI.CS; bool isABI = (nvptxSubtarget.getSmVersion() >= 20); + assert(isABI && "Non-ABI compilation is not supported"); + if (!isABI) + return Chain; + const DataLayout *TD = getDataLayout(); + MachineFunction &MF = DAG.getMachineFunction(); + const Function *F = MF.getFunction(); SDValue tempChain = Chain; Chain = - DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(uniqueCallSite, true)); + DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(uniqueCallSite, true), + dl); SDValue InFlag = Chain.getValue(1); - assert((Outs.size() == Args.size()) && - "Unexpected number of arguments to function call"); unsigned paramCount = 0; + // Args.size() and Outs.size() need not match. + // Outs.size() will be larger + // * if there is an aggregate argument with multiple fields (each field + // showing up separately in Outs) + // * if there is a vector argument with more than typical vector-length + // elements (generally if more than 4) where each vector element is + // individually present in Outs. + // So a different index should be used for indexing into Outs/OutVals. + // See similar issue in LowerFormalArguments. + unsigned OIdx = 0; // Declare the .params or .reg need to pass values // to the function - for (unsigned i = 0, e = Outs.size(); i != e; ++i) { - EVT VT = Outs[i].VT; + for (unsigned i = 0, e = Args.size(); i != e; ++i, ++OIdx) { + EVT VT = Outs[OIdx].VT; + Type *Ty = Args[i].Ty; + + if (Outs[OIdx].Flags.isByVal() == false) { + if (Ty->isAggregateType()) { + // aggregate + SmallVector<EVT, 16> vtparts; + ComputeValueVTs(*this, Ty, vtparts); + + unsigned align = getArgumentAlignment(Callee, CS, Ty, paramCount + 1); + // declare .param .align <align> .b8 .param<n>[<size>]; + unsigned sz = TD->getTypeAllocSize(Ty); + SDVTList DeclareParamVTs = DAG.getVTList(MVT::Other, MVT::Glue); + SDValue DeclareParamOps[] = { Chain, DAG.getConstant(align, MVT::i32), + DAG.getConstant(paramCount, MVT::i32), + DAG.getConstant(sz, MVT::i32), InFlag }; + Chain = DAG.getNode(NVPTXISD::DeclareParam, dl, DeclareParamVTs, + DeclareParamOps, 5); + InFlag = Chain.getValue(1); + unsigned curOffset = 0; + for (unsigned j = 0, je = vtparts.size(); j != je; ++j) { + unsigned elems = 1; + EVT elemtype = vtparts[j]; + if (vtparts[j].isVector()) { + elems = vtparts[j].getVectorNumElements(); + elemtype = vtparts[j].getVectorElementType(); + } + for (unsigned k = 0, ke = elems; k != ke; ++k) { + unsigned sz = elemtype.getSizeInBits(); + if (elemtype.isInteger() && (sz < 8)) + sz = 8; + SDValue StVal = OutVals[OIdx]; + if (elemtype.getSizeInBits() < 16) { + StVal = DAG.getNode(ISD::ANY_EXTEND, dl, MVT::i16, StVal); + } + SDVTList CopyParamVTs = DAG.getVTList(MVT::Other, MVT::Glue); + SDValue CopyParamOps[] = { Chain, + DAG.getConstant(paramCount, MVT::i32), + DAG.getConstant(curOffset, MVT::i32), + StVal, InFlag }; + Chain = DAG.getMemIntrinsicNode(NVPTXISD::StoreParam, dl, + CopyParamVTs, &CopyParamOps[0], 5, + elemtype, MachinePointerInfo()); + InFlag = Chain.getValue(1); + curOffset += sz / 8; + ++OIdx; + } + } + if (vtparts.size() > 0) + --OIdx; + ++paramCount; + continue; + } + if (Ty->isVectorTy()) { + EVT ObjectVT = getValueType(Ty); + unsigned align = getArgumentAlignment(Callee, CS, Ty, paramCount + 1); + // declare .param .align <align> .b8 .param<n>[<size>]; + unsigned sz = TD->getTypeAllocSize(Ty); + SDVTList DeclareParamVTs = DAG.getVTList(MVT::Other, MVT::Glue); + SDValue DeclareParamOps[] = { Chain, DAG.getConstant(align, MVT::i32), + DAG.getConstant(paramCount, MVT::i32), + DAG.getConstant(sz, MVT::i32), InFlag }; + Chain = DAG.getNode(NVPTXISD::DeclareParam, dl, DeclareParamVTs, + DeclareParamOps, 5); + InFlag = Chain.getValue(1); + unsigned NumElts = ObjectVT.getVectorNumElements(); + EVT EltVT = ObjectVT.getVectorElementType(); + EVT MemVT = EltVT; + bool NeedExtend = false; + if (EltVT.getSizeInBits() < 16) { + NeedExtend = true; + EltVT = MVT::i16; + } + + // V1 store + if (NumElts == 1) { + SDValue Elt = OutVals[OIdx++]; + if (NeedExtend) + Elt = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i16, Elt); + + SDVTList CopyParamVTs = DAG.getVTList(MVT::Other, MVT::Glue); + SDValue CopyParamOps[] = { Chain, + DAG.getConstant(paramCount, MVT::i32), + DAG.getConstant(0, MVT::i32), Elt, + InFlag }; + Chain = DAG.getMemIntrinsicNode(NVPTXISD::StoreParam, dl, + CopyParamVTs, &CopyParamOps[0], 5, + MemVT, MachinePointerInfo()); + InFlag = Chain.getValue(1); + } else if (NumElts == 2) { + SDValue Elt0 = OutVals[OIdx++]; + SDValue Elt1 = OutVals[OIdx++]; + if (NeedExtend) { + Elt0 = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i16, Elt0); + Elt1 = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i16, Elt1); + } + + SDVTList CopyParamVTs = DAG.getVTList(MVT::Other, MVT::Glue); + SDValue CopyParamOps[] = { Chain, + DAG.getConstant(paramCount, MVT::i32), + DAG.getConstant(0, MVT::i32), Elt0, Elt1, + InFlag }; + Chain = DAG.getMemIntrinsicNode(NVPTXISD::StoreParamV2, dl, + CopyParamVTs, &CopyParamOps[0], 6, + MemVT, MachinePointerInfo()); + InFlag = Chain.getValue(1); + } else { + unsigned curOffset = 0; + // V4 stores + // We have at least 4 elements (<3 x Ty> expands to 4 elements) and + // the + // vector will be expanded to a power of 2 elements, so we know we can + // always round up to the next multiple of 4 when creating the vector + // stores. + // e.g. 4 elem => 1 st.v4 + // 6 elem => 2 st.v4 + // 8 elem => 2 st.v4 + // 11 elem => 3 st.v4 + unsigned VecSize = 4; + if (EltVT.getSizeInBits() == 64) + VecSize = 2; + + // This is potentially only part of a vector, so assume all elements + // are packed together. + unsigned PerStoreOffset = MemVT.getStoreSizeInBits() / 8 * VecSize; + + for (unsigned i = 0; i < NumElts; i += VecSize) { + // Get values + SDValue StoreVal; + SmallVector<SDValue, 8> Ops; + Ops.push_back(Chain); + Ops.push_back(DAG.getConstant(paramCount, MVT::i32)); + Ops.push_back(DAG.getConstant(curOffset, MVT::i32)); + + unsigned Opc = NVPTXISD::StoreParamV2; + + StoreVal = OutVals[OIdx++]; + if (NeedExtend) + StoreVal = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i16, StoreVal); + Ops.push_back(StoreVal); + + if (i + 1 < NumElts) { + StoreVal = OutVals[OIdx++]; + if (NeedExtend) + StoreVal = + DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i16, StoreVal); + } else { + StoreVal = DAG.getUNDEF(EltVT); + } + Ops.push_back(StoreVal); + + if (VecSize == 4) { + Opc = NVPTXISD::StoreParamV4; + if (i + 2 < NumElts) { + StoreVal = OutVals[OIdx++]; + if (NeedExtend) + StoreVal = + DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i16, StoreVal); + } else { + StoreVal = DAG.getUNDEF(EltVT); + } + Ops.push_back(StoreVal); + + if (i + 3 < NumElts) { + StoreVal = OutVals[OIdx++]; + if (NeedExtend) + StoreVal = + DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i16, StoreVal); + } else { + StoreVal = DAG.getUNDEF(EltVT); + } + Ops.push_back(StoreVal); + } - if (Outs[i].Flags.isByVal() == false) { + Ops.push_back(InFlag); + + SDVTList CopyParamVTs = DAG.getVTList(MVT::Other, MVT::Glue); + Chain = DAG.getMemIntrinsicNode(Opc, dl, CopyParamVTs, &Ops[0], + Ops.size(), MemVT, + MachinePointerInfo()); + InFlag = Chain.getValue(1); + curOffset += PerStoreOffset; + } + } + ++paramCount; + --OIdx; + continue; + } // Plain scalar // for ABI, declare .param .b<size> .param<n>; - // for nonABI, declare .reg .b<size> .param<n>; - unsigned isReg = 1; - if (isABI) - isReg = 0; unsigned sz = VT.getSizeInBits(); - if (VT.isInteger() && (sz < 32)) - sz = 32; + bool needExtend = false; + if (VT.isInteger()) { + if (sz < 16) + needExtend = true; + if (sz < 32) + sz = 32; + } SDVTList DeclareParamVTs = DAG.getVTList(MVT::Other, MVT::Glue); SDValue DeclareParamOps[] = { Chain, DAG.getConstant(paramCount, MVT::i32), DAG.getConstant(sz, MVT::i32), - DAG.getConstant(isReg, MVT::i32), InFlag }; + DAG.getConstant(0, MVT::i32), InFlag }; Chain = DAG.getNode(NVPTXISD::DeclareScalarParam, dl, DeclareParamVTs, DeclareParamOps, 5); InFlag = Chain.getValue(1); + SDValue OutV = OutVals[OIdx]; + if (needExtend) { + // zext/sext i1 to i16 + unsigned opc = ISD::ZERO_EXTEND; + if (Outs[OIdx].Flags.isSExt()) + opc = ISD::SIGN_EXTEND; + OutV = DAG.getNode(opc, dl, MVT::i16, OutV); + } SDVTList CopyParamVTs = DAG.getVTList(MVT::Other, MVT::Glue); SDValue CopyParamOps[] = { Chain, DAG.getConstant(paramCount, MVT::i32), - DAG.getConstant(0, MVT::i32), OutVals[i], - InFlag }; + DAG.getConstant(0, MVT::i32), OutV, InFlag }; unsigned opcode = NVPTXISD::StoreParam; - if (isReg) - opcode = NVPTXISD::MoveToParam; - else { - if (Outs[i].Flags.isZExt()) - opcode = NVPTXISD::StoreParamU32; - else if (Outs[i].Flags.isSExt()) - opcode = NVPTXISD::StoreParamS32; - } - Chain = DAG.getNode(opcode, dl, CopyParamVTs, CopyParamOps, 5); + if (Outs[OIdx].Flags.isZExt()) + opcode = NVPTXISD::StoreParamU32; + else if (Outs[OIdx].Flags.isSExt()) + opcode = NVPTXISD::StoreParamS32; + Chain = DAG.getMemIntrinsicNode(opcode, dl, CopyParamVTs, CopyParamOps, 5, + VT, MachinePointerInfo()); InFlag = Chain.getValue(1); ++paramCount; @@ -505,55 +794,20 @@ SDValue NVPTXTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI, assert(PTy && "Type of a byval parameter should be pointer"); ComputeValueVTs(*this, PTy->getElementType(), vtparts); - if (isABI) { - // declare .param .align 16 .b8 .param<n>[<size>]; - unsigned sz = Outs[i].Flags.getByValSize(); - SDVTList DeclareParamVTs = DAG.getVTList(MVT::Other, MVT::Glue); - // The ByValAlign in the Outs[i].Flags is alway set at this point, so we - // don't need to - // worry about natural alignment or not. See TargetLowering::LowerCallTo() - SDValue DeclareParamOps[] = { - Chain, DAG.getConstant(Outs[i].Flags.getByValAlign(), MVT::i32), - DAG.getConstant(paramCount, MVT::i32), DAG.getConstant(sz, MVT::i32), - InFlag - }; - Chain = DAG.getNode(NVPTXISD::DeclareParam, dl, DeclareParamVTs, - DeclareParamOps, 5); - InFlag = Chain.getValue(1); - unsigned curOffset = 0; - for (unsigned j = 0, je = vtparts.size(); j != je; ++j) { - unsigned elems = 1; - EVT elemtype = vtparts[j]; - if (vtparts[j].isVector()) { - elems = vtparts[j].getVectorNumElements(); - elemtype = vtparts[j].getVectorElementType(); - } - for (unsigned k = 0, ke = elems; k != ke; ++k) { - unsigned sz = elemtype.getSizeInBits(); - if (elemtype.isInteger() && (sz < 8)) - sz = 8; - SDValue srcAddr = - DAG.getNode(ISD::ADD, dl, getPointerTy(), OutVals[i], - DAG.getConstant(curOffset, getPointerTy())); - SDValue theVal = - DAG.getLoad(elemtype, dl, tempChain, srcAddr, - MachinePointerInfo(), false, false, false, 0); - SDVTList CopyParamVTs = DAG.getVTList(MVT::Other, MVT::Glue); - SDValue CopyParamOps[] = { Chain, - DAG.getConstant(paramCount, MVT::i32), - DAG.getConstant(curOffset, MVT::i32), - theVal, InFlag }; - Chain = DAG.getNode(NVPTXISD::StoreParam, dl, CopyParamVTs, - CopyParamOps, 5); - InFlag = Chain.getValue(1); - curOffset += sz / 8; - } - } - ++paramCount; - continue; - } - // Non-abi, struct or vector - // Declare a bunch or .reg .b<size> .param<n> + // declare .param .align <align> .b8 .param<n>[<size>]; + unsigned sz = Outs[OIdx].Flags.getByValSize(); + SDVTList DeclareParamVTs = DAG.getVTList(MVT::Other, MVT::Glue); + // The ByValAlign in the Outs[OIdx].Flags is alway set at this point, + // so we don't need to worry about natural alignment or not. + // See TargetLowering::LowerCallTo(). + SDValue DeclareParamOps[] = { + Chain, DAG.getConstant(Outs[OIdx].Flags.getByValAlign(), MVT::i32), + DAG.getConstant(paramCount, MVT::i32), DAG.getConstant(sz, MVT::i32), + InFlag + }; + Chain = DAG.getNode(NVPTXISD::DeclareParam, dl, DeclareParamVTs, + DeclareParamOps, 5); + InFlag = Chain.getValue(1); unsigned curOffset = 0; for (unsigned j = 0, je = vtparts.size(); j != je; ++j) { unsigned elems = 1; @@ -564,107 +818,66 @@ SDValue NVPTXTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI, } for (unsigned k = 0, ke = elems; k != ke; ++k) { unsigned sz = elemtype.getSizeInBits(); - if (elemtype.isInteger() && (sz < 32)) - sz = 32; - SDVTList DeclareParamVTs = DAG.getVTList(MVT::Other, MVT::Glue); - SDValue DeclareParamOps[] = { Chain, - DAG.getConstant(paramCount, MVT::i32), - DAG.getConstant(sz, MVT::i32), - DAG.getConstant(1, MVT::i32), InFlag }; - Chain = DAG.getNode(NVPTXISD::DeclareScalarParam, dl, DeclareParamVTs, - DeclareParamOps, 5); - InFlag = Chain.getValue(1); + if (elemtype.isInteger() && (sz < 8)) + sz = 8; SDValue srcAddr = - DAG.getNode(ISD::ADD, dl, getPointerTy(), OutVals[i], + DAG.getNode(ISD::ADD, dl, getPointerTy(), OutVals[OIdx], DAG.getConstant(curOffset, getPointerTy())); - SDValue theVal = - DAG.getLoad(elemtype, dl, tempChain, srcAddr, MachinePointerInfo(), - false, false, false, 0); + SDValue theVal = DAG.getLoad(elemtype, dl, tempChain, srcAddr, + MachinePointerInfo(), false, false, false, + 0); + if (elemtype.getSizeInBits() < 16) { + theVal = DAG.getNode(ISD::ANY_EXTEND, dl, MVT::i16, theVal); + } SDVTList CopyParamVTs = DAG.getVTList(MVT::Other, MVT::Glue); SDValue CopyParamOps[] = { Chain, DAG.getConstant(paramCount, MVT::i32), - DAG.getConstant(0, MVT::i32), theVal, + DAG.getConstant(curOffset, MVT::i32), theVal, InFlag }; - Chain = DAG.getNode(NVPTXISD::MoveToParam, dl, CopyParamVTs, - CopyParamOps, 5); + Chain = DAG.getMemIntrinsicNode(NVPTXISD::StoreParam, dl, CopyParamVTs, + CopyParamOps, 5, elemtype, + MachinePointerInfo()); + InFlag = Chain.getValue(1); - ++paramCount; + curOffset += sz / 8; } } + ++paramCount; } GlobalAddressSDNode *Func = dyn_cast<GlobalAddressSDNode>(Callee.getNode()); unsigned retAlignment = 0; // Handle Result - unsigned retCount = 0; if (Ins.size() > 0) { SmallVector<EVT, 16> resvtparts; ComputeValueVTs(*this, retTy, resvtparts); - // Declare one .param .align 16 .b8 func_retval0[<size>] for ABI or - // individual .reg .b<size> func_retval<0..> for non ABI - unsigned resultsz = 0; - for (unsigned i = 0, e = resvtparts.size(); i != e; ++i) { - unsigned elems = 1; - EVT elemtype = resvtparts[i]; - if (resvtparts[i].isVector()) { - elems = resvtparts[i].getVectorNumElements(); - elemtype = resvtparts[i].getVectorElementType(); - } - for (unsigned j = 0, je = elems; j != je; ++j) { - unsigned sz = elemtype.getSizeInBits(); - if (isABI == false) { - if (elemtype.isInteger() && (sz < 32)) - sz = 32; - } else { - if (elemtype.isInteger() && (sz < 8)) - sz = 8; - } - if (isABI == false) { - SDVTList DeclareRetVTs = DAG.getVTList(MVT::Other, MVT::Glue); - SDValue DeclareRetOps[] = { Chain, DAG.getConstant(2, MVT::i32), - DAG.getConstant(sz, MVT::i32), - DAG.getConstant(retCount, MVT::i32), - InFlag }; - Chain = DAG.getNode(NVPTXISD::DeclareRet, dl, DeclareRetVTs, - DeclareRetOps, 5); - InFlag = Chain.getValue(1); - ++retCount; - } - resultsz += sz; - } - } - if (isABI) { - if (retTy->isPrimitiveType() || retTy->isIntegerTy() || - retTy->isPointerTy()) { - // Scalar needs to be at least 32bit wide - if (resultsz < 32) - resultsz = 32; - SDVTList DeclareRetVTs = DAG.getVTList(MVT::Other, MVT::Glue); - SDValue DeclareRetOps[] = { Chain, DAG.getConstant(1, MVT::i32), - DAG.getConstant(resultsz, MVT::i32), - DAG.getConstant(0, MVT::i32), InFlag }; - Chain = DAG.getNode(NVPTXISD::DeclareRet, dl, DeclareRetVTs, - DeclareRetOps, 5); - InFlag = Chain.getValue(1); - } else { - if (Func) { // direct call - if (!llvm::getAlign(*(CS->getCalledFunction()), 0, retAlignment)) - retAlignment = getDataLayout()->getABITypeAlignment(retTy); - } else { // indirect call - const CallInst *CallI = dyn_cast<CallInst>(CS->getInstruction()); - if (!llvm::getAlign(*CallI, 0, retAlignment)) - retAlignment = getDataLayout()->getABITypeAlignment(retTy); - } - SDVTList DeclareRetVTs = DAG.getVTList(MVT::Other, MVT::Glue); - SDValue DeclareRetOps[] = { Chain, - DAG.getConstant(retAlignment, MVT::i32), - DAG.getConstant(resultsz / 8, MVT::i32), - DAG.getConstant(0, MVT::i32), InFlag }; - Chain = DAG.getNode(NVPTXISD::DeclareRetParam, dl, DeclareRetVTs, - DeclareRetOps, 5); - InFlag = Chain.getValue(1); - } + // Declare + // .param .align 16 .b8 retval0[<size-in-bytes>], or + // .param .b<size-in-bits> retval0 + unsigned resultsz = TD->getTypeAllocSizeInBits(retTy); + if (retTy->isPrimitiveType() || retTy->isIntegerTy() || + retTy->isPointerTy()) { + // Scalar needs to be at least 32bit wide + if (resultsz < 32) + resultsz = 32; + SDVTList DeclareRetVTs = DAG.getVTList(MVT::Other, MVT::Glue); + SDValue DeclareRetOps[] = { Chain, DAG.getConstant(1, MVT::i32), + DAG.getConstant(resultsz, MVT::i32), + DAG.getConstant(0, MVT::i32), InFlag }; + Chain = DAG.getNode(NVPTXISD::DeclareRet, dl, DeclareRetVTs, + DeclareRetOps, 5); + InFlag = Chain.getValue(1); + } else { + retAlignment = getArgumentAlignment(Callee, CS, retTy, 0); + SDVTList DeclareRetVTs = DAG.getVTList(MVT::Other, MVT::Glue); + SDValue DeclareRetOps[] = { Chain, + DAG.getConstant(retAlignment, MVT::i32), + DAG.getConstant(resultsz / 8, MVT::i32), + DAG.getConstant(0, MVT::i32), InFlag }; + Chain = DAG.getNode(NVPTXISD::DeclareRetParam, dl, DeclareRetVTs, + DeclareRetOps, 5); + InFlag = Chain.getValue(1); } } @@ -674,25 +887,22 @@ SDValue NVPTXTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI, // proto_0 : .callprototype(.param .b32 _) _ (.param .b32 _); // to be emitted, and the label has to used as the last arg of call // instruction. - // The prototype is embedded in a string and put as the operand for an - // INLINEASM SDNode. - SDVTList InlineAsmVTs = DAG.getVTList(MVT::Other, MVT::Glue); - std::string proto_string = getPrototype(retTy, Args, Outs, retAlignment); - const char *asmstr = nvTM->getManagedStrPool() - ->getManagedString(proto_string.c_str())->c_str(); - SDValue InlineAsmOps[] = { - Chain, DAG.getTargetExternalSymbol(asmstr, getPointerTy()), - DAG.getMDNode(0), DAG.getTargetConstant(0, MVT::i32), InFlag + // The prototype is embedded in a string and put as the operand for a + // CallPrototype SDNode which will print out to the value of the string. + SDVTList ProtoVTs = DAG.getVTList(MVT::Other, MVT::Glue); + std::string Proto = getPrototype(retTy, Args, Outs, retAlignment, CS); + const char *ProtoStr = + nvTM->getManagedStrPool()->getManagedString(Proto.c_str())->c_str(); + SDValue ProtoOps[] = { + Chain, DAG.getTargetExternalSymbol(ProtoStr, MVT::i32), InFlag, }; - Chain = DAG.getNode(ISD::INLINEASM, dl, InlineAsmVTs, InlineAsmOps, 5); + Chain = DAG.getNode(NVPTXISD::CallPrototype, dl, ProtoVTs, &ProtoOps[0], 3); InFlag = Chain.getValue(1); } // Op to just print "call" SDVTList PrintCallVTs = DAG.getVTList(MVT::Other, MVT::Glue); SDValue PrintCallOps[] = { - Chain, - DAG.getConstant(isABI ? ((Ins.size() == 0) ? 0 : 1) : retCount, MVT::i32), - InFlag + Chain, DAG.getConstant((Ins.size() == 0) ? 0 : 1, MVT::i32), InFlag }; Chain = DAG.getNode(Func ? (NVPTXISD::PrintCallUni) : (NVPTXISD::PrintCall), dl, PrintCallVTs, PrintCallOps, 3); @@ -740,62 +950,183 @@ SDValue NVPTXTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI, // Generate loads from param memory/moves from registers for result if (Ins.size() > 0) { - if (isABI) { - unsigned resoffset = 0; - for (unsigned i = 0, e = Ins.size(); i != e; ++i) { - unsigned sz = Ins[i].VT.getSizeInBits(); - if (Ins[i].VT.isInteger() && (sz < 8)) - sz = 8; - EVT LoadRetVTs[] = { Ins[i].VT, MVT::Other, MVT::Glue }; - SDValue LoadRetOps[] = { Chain, DAG.getConstant(1, MVT::i32), - DAG.getConstant(resoffset, MVT::i32), InFlag }; - SDValue retval = DAG.getNode(NVPTXISD::LoadParam, dl, LoadRetVTs, - LoadRetOps, array_lengthof(LoadRetOps)); + unsigned resoffset = 0; + if (retTy && retTy->isVectorTy()) { + EVT ObjectVT = getValueType(retTy); + unsigned NumElts = ObjectVT.getVectorNumElements(); + EVT EltVT = ObjectVT.getVectorElementType(); + assert(nvTM->getTargetLowering()->getNumRegisters(F->getContext(), + ObjectVT) == NumElts && + "Vector was not scalarized"); + unsigned sz = EltVT.getSizeInBits(); + bool needTruncate = sz < 16 ? true : false; + + if (NumElts == 1) { + // Just a simple load + std::vector<EVT> LoadRetVTs; + if (needTruncate) { + // If loading i1 result, generate + // load i16 + // trunc i16 to i1 + LoadRetVTs.push_back(MVT::i16); + } else + LoadRetVTs.push_back(EltVT); + LoadRetVTs.push_back(MVT::Other); + LoadRetVTs.push_back(MVT::Glue); + std::vector<SDValue> LoadRetOps; + LoadRetOps.push_back(Chain); + LoadRetOps.push_back(DAG.getConstant(1, MVT::i32)); + LoadRetOps.push_back(DAG.getConstant(0, MVT::i32)); + LoadRetOps.push_back(InFlag); + SDValue retval = DAG.getMemIntrinsicNode( + NVPTXISD::LoadParam, dl, + DAG.getVTList(&LoadRetVTs[0], LoadRetVTs.size()), &LoadRetOps[0], + LoadRetOps.size(), EltVT, MachinePointerInfo()); Chain = retval.getValue(1); InFlag = retval.getValue(2); - InVals.push_back(retval); - resoffset += sz / 8; + SDValue Ret0 = retval; + if (needTruncate) + Ret0 = DAG.getNode(ISD::TRUNCATE, dl, EltVT, Ret0); + InVals.push_back(Ret0); + } else if (NumElts == 2) { + // LoadV2 + std::vector<EVT> LoadRetVTs; + if (needTruncate) { + // If loading i1 result, generate + // load i16 + // trunc i16 to i1 + LoadRetVTs.push_back(MVT::i16); + LoadRetVTs.push_back(MVT::i16); + } else { + LoadRetVTs.push_back(EltVT); + LoadRetVTs.push_back(EltVT); + } + LoadRetVTs.push_back(MVT::Other); + LoadRetVTs.push_back(MVT::Glue); + std::vector<SDValue> LoadRetOps; + LoadRetOps.push_back(Chain); + LoadRetOps.push_back(DAG.getConstant(1, MVT::i32)); + LoadRetOps.push_back(DAG.getConstant(0, MVT::i32)); + LoadRetOps.push_back(InFlag); + SDValue retval = DAG.getMemIntrinsicNode( + NVPTXISD::LoadParamV2, dl, + DAG.getVTList(&LoadRetVTs[0], LoadRetVTs.size()), &LoadRetOps[0], + LoadRetOps.size(), EltVT, MachinePointerInfo()); + Chain = retval.getValue(2); + InFlag = retval.getValue(3); + SDValue Ret0 = retval.getValue(0); + SDValue Ret1 = retval.getValue(1); + if (needTruncate) { + Ret0 = DAG.getNode(ISD::TRUNCATE, dl, MVT::i1, Ret0); + InVals.push_back(Ret0); + Ret1 = DAG.getNode(ISD::TRUNCATE, dl, MVT::i1, Ret1); + InVals.push_back(Ret1); + } else { + InVals.push_back(Ret0); + InVals.push_back(Ret1); + } + } else { + // Split into N LoadV4 + unsigned Ofst = 0; + unsigned VecSize = 4; + unsigned Opc = NVPTXISD::LoadParamV4; + if (EltVT.getSizeInBits() == 64) { + VecSize = 2; + Opc = NVPTXISD::LoadParamV2; + } + EVT VecVT = EVT::getVectorVT(F->getContext(), EltVT, VecSize); + for (unsigned i = 0; i < NumElts; i += VecSize) { + SmallVector<EVT, 8> LoadRetVTs; + if (needTruncate) { + // If loading i1 result, generate + // load i16 + // trunc i16 to i1 + for (unsigned j = 0; j < VecSize; ++j) + LoadRetVTs.push_back(MVT::i16); + } else { + for (unsigned j = 0; j < VecSize; ++j) + LoadRetVTs.push_back(EltVT); + } + LoadRetVTs.push_back(MVT::Other); + LoadRetVTs.push_back(MVT::Glue); + SmallVector<SDValue, 4> LoadRetOps; + LoadRetOps.push_back(Chain); + LoadRetOps.push_back(DAG.getConstant(1, MVT::i32)); + LoadRetOps.push_back(DAG.getConstant(Ofst, MVT::i32)); + LoadRetOps.push_back(InFlag); + SDValue retval = DAG.getMemIntrinsicNode( + Opc, dl, DAG.getVTList(&LoadRetVTs[0], LoadRetVTs.size()), + &LoadRetOps[0], LoadRetOps.size(), EltVT, MachinePointerInfo()); + if (VecSize == 2) { + Chain = retval.getValue(2); + InFlag = retval.getValue(3); + } else { + Chain = retval.getValue(4); + InFlag = retval.getValue(5); + } + + for (unsigned j = 0; j < VecSize; ++j) { + if (i + j >= NumElts) + break; + SDValue Elt = retval.getValue(j); + if (needTruncate) + Elt = DAG.getNode(ISD::TRUNCATE, dl, EltVT, Elt); + InVals.push_back(Elt); + } + Ofst += TD->getTypeAllocSize(VecVT.getTypeForEVT(F->getContext())); + } } } else { - SmallVector<EVT, 16> resvtparts; - ComputeValueVTs(*this, retTy, resvtparts); - - assert(Ins.size() == resvtparts.size() && - "Unexpected number of return values in non-ABI case"); - unsigned paramNum = 0; + SmallVector<EVT, 16> VTs; + ComputePTXValueVTs(*this, retTy, VTs); + assert(VTs.size() == Ins.size() && "Bad value decomposition"); for (unsigned i = 0, e = Ins.size(); i != e; ++i) { - assert(EVT(Ins[i].VT) == resvtparts[i] && - "Unexpected EVT type in non-ABI case"); - unsigned numelems = 1; - EVT elemtype = Ins[i].VT; - if (Ins[i].VT.isVector()) { - numelems = Ins[i].VT.getVectorNumElements(); - elemtype = Ins[i].VT.getVectorElementType(); - } - std::vector<SDValue> tempRetVals; - for (unsigned j = 0; j < numelems; ++j) { - EVT MoveRetVTs[] = { elemtype, MVT::Other, MVT::Glue }; - SDValue MoveRetOps[] = { Chain, DAG.getConstant(0, MVT::i32), - DAG.getConstant(paramNum, MVT::i32), - InFlag }; - SDValue retval = DAG.getNode(NVPTXISD::LoadParam, dl, MoveRetVTs, - MoveRetOps, array_lengthof(MoveRetOps)); - Chain = retval.getValue(1); - InFlag = retval.getValue(2); - tempRetVals.push_back(retval); - ++paramNum; - } - if (Ins[i].VT.isVector()) - InVals.push_back(DAG.getNode(ISD::BUILD_VECTOR, dl, Ins[i].VT, - &tempRetVals[0], tempRetVals.size())); - else - InVals.push_back(tempRetVals[0]); + unsigned sz = VTs[i].getSizeInBits(); + bool needTruncate = sz < 8 ? true : false; + if (VTs[i].isInteger() && (sz < 8)) + sz = 8; + + SmallVector<EVT, 4> LoadRetVTs; + EVT TheLoadType = VTs[i]; + if (retTy->isIntegerTy() && + TD->getTypeAllocSizeInBits(retTy) < 32) { + // This is for integer types only, and specifically not for + // aggregates. + LoadRetVTs.push_back(MVT::i32); + TheLoadType = MVT::i32; + } else if (sz < 16) { + // If loading i1/i8 result, generate + // load i8 (-> i16) + // trunc i16 to i1/i8 + LoadRetVTs.push_back(MVT::i16); + } else + LoadRetVTs.push_back(Ins[i].VT); + LoadRetVTs.push_back(MVT::Other); + LoadRetVTs.push_back(MVT::Glue); + + SmallVector<SDValue, 4> LoadRetOps; + LoadRetOps.push_back(Chain); + LoadRetOps.push_back(DAG.getConstant(1, MVT::i32)); + LoadRetOps.push_back(DAG.getConstant(resoffset, MVT::i32)); + LoadRetOps.push_back(InFlag); + SDValue retval = DAG.getMemIntrinsicNode( + NVPTXISD::LoadParam, dl, + DAG.getVTList(&LoadRetVTs[0], LoadRetVTs.size()), &LoadRetOps[0], + LoadRetOps.size(), TheLoadType, MachinePointerInfo()); + Chain = retval.getValue(1); + InFlag = retval.getValue(2); + SDValue Ret0 = retval.getValue(0); + if (needTruncate) + Ret0 = DAG.getNode(ISD::TRUNCATE, dl, Ins[i].VT, Ret0); + InVals.push_back(Ret0); + resoffset += sz / 8; } } } + Chain = DAG.getCALLSEQ_END(Chain, DAG.getIntPtrConstant(uniqueCallSite, true), DAG.getIntPtrConstant(uniqueCallSite + 1, true), - InFlag); + InFlag, dl); uniqueCallSite++; // set isTailCall to false for now, until we figure out how to express @@ -810,7 +1141,7 @@ SDValue NVPTXTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI, SDValue NVPTXTargetLowering::LowerCONCAT_VECTORS(SDValue Op, SelectionDAG &DAG) const { SDNode *Node = Op.getNode(); - DebugLoc dl = Node->getDebugLoc(); + SDLoc dl(Node); SmallVector<SDValue, 8> Ops; unsigned NumOperands = Node->getNumOperands(); for (unsigned i = 0; i < NumOperands; ++i) { @@ -861,17 +1192,17 @@ SDValue NVPTXTargetLowering::LowerLOAD(SDValue Op, SelectionDAG &DAG) const { // v = ld i1* addr // => -// v1 = ld i8* addr -// v = trunc v1 to i1 +// v1 = ld i8* addr (-> i16) +// v = trunc i16 to i1 SDValue NVPTXTargetLowering::LowerLOADi1(SDValue Op, SelectionDAG &DAG) const { SDNode *Node = Op.getNode(); LoadSDNode *LD = cast<LoadSDNode>(Node); - DebugLoc dl = Node->getDebugLoc(); + SDLoc dl(Node); assert(LD->getExtensionType() == ISD::NON_EXTLOAD); assert(Node->getValueType(0) == MVT::i1 && "Custom lowering for i1 load only"); SDValue newLD = - DAG.getLoad(MVT::i8, dl, LD->getChain(), LD->getBasePtr(), + DAG.getLoad(MVT::i16, dl, LD->getChain(), LD->getBasePtr(), LD->getPointerInfo(), LD->isVolatile(), LD->isNonTemporal(), LD->isInvariant(), LD->getAlignment()); SDValue result = DAG.getNode(ISD::TRUNCATE, dl, MVT::i1, newLD); @@ -896,7 +1227,7 @@ SDValue NVPTXTargetLowering::LowerSTOREVector(SDValue Op, SelectionDAG &DAG) const { SDNode *N = Op.getNode(); SDValue Val = N->getOperand(1); - DebugLoc DL = N->getDebugLoc(); + SDLoc DL(N); EVT ValVT = Val.getValueType(); if (ValVT.isVector()) { @@ -955,8 +1286,6 @@ NVPTXTargetLowering::LowerSTOREVector(SDValue Op, SelectionDAG &DAG) const { SDValue ExtVal = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL, EltVT, Val, DAG.getIntPtrConstant(i)); if (NeedExt) - // ANY_EXTEND is correct here since the store will only look at the - // lower-order bits anyway. ExtVal = DAG.getNode(ISD::ANY_EXTEND, DL, MVT::i16, ExtVal); Ops.push_back(ExtVal); } @@ -981,11 +1310,11 @@ NVPTXTargetLowering::LowerSTOREVector(SDValue Op, SelectionDAG &DAG) const { // st i1 v, addr // => -// v1 = zxt v to i8 -// st i8, addr +// v1 = zxt v to i16 +// st.u8 i16, addr SDValue NVPTXTargetLowering::LowerSTOREi1(SDValue Op, SelectionDAG &DAG) const { SDNode *Node = Op.getNode(); - DebugLoc dl = Node->getDebugLoc(); + SDLoc dl(Node); StoreSDNode *ST = cast<StoreSDNode>(Node); SDValue Tmp1 = ST->getChain(); SDValue Tmp2 = ST->getBasePtr(); @@ -994,9 +1323,10 @@ SDValue NVPTXTargetLowering::LowerSTOREi1(SDValue Op, SelectionDAG &DAG) const { unsigned Alignment = ST->getAlignment(); bool isVolatile = ST->isVolatile(); bool isNonTemporal = ST->isNonTemporal(); - Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i8, Tmp3); - SDValue Result = DAG.getStore(Tmp1, dl, Tmp3, Tmp2, ST->getPointerInfo(), - isVolatile, isNonTemporal, Alignment); + Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i16, Tmp3); + SDValue Result = DAG.getTruncStore(Tmp1, dl, Tmp3, Tmp2, + ST->getPointerInfo(), MVT::i8, isNonTemporal, + isVolatile, Alignment); return Result; } @@ -1011,7 +1341,15 @@ SDValue NVPTXTargetLowering::getExtSymb(SelectionDAG &DAG, const char *inname, SDValue NVPTXTargetLowering::getParamSymbol(SelectionDAG &DAG, int idx, EVT v) const { - return getExtSymb(DAG, ".PARAM", idx, v); + std::string ParamSym; + raw_string_ostream ParamStr(ParamSym); + + ParamStr << DAG.getMachineFunction().getName() << "_param_" << idx; + ParamStr.flush(); + + std::string *SavedStr = + nvTM->getManagedStrPool()->getManagedString(ParamSym.c_str()); + return DAG.getTargetExternalSymbol(SavedStr->c_str(), v); } SDValue NVPTXTargetLowering::getParamHelpSymbol(SelectionDAG &DAG, int idx) { @@ -1046,19 +1384,23 @@ bool llvm::isImageOrSamplerVal(const Value *arg, const Module *context) { SDValue NVPTXTargetLowering::LowerFormalArguments( SDValue Chain, CallingConv::ID CallConv, bool isVarArg, - const SmallVectorImpl<ISD::InputArg> &Ins, DebugLoc dl, SelectionDAG &DAG, + const SmallVectorImpl<ISD::InputArg> &Ins, SDLoc dl, SelectionDAG &DAG, SmallVectorImpl<SDValue> &InVals) const { MachineFunction &MF = DAG.getMachineFunction(); const DataLayout *TD = getDataLayout(); const Function *F = MF.getFunction(); const AttributeSet &PAL = F->getAttributes(); + const TargetLowering *TLI = nvTM->getTargetLowering(); SDValue Root = DAG.getRoot(); std::vector<SDValue> OutChains; bool isKernel = llvm::isKernelFunction(*F); bool isABI = (nvptxSubtarget.getSmVersion() >= 20); + assert(isABI && "Non-ABI compilation is not supported"); + if (!isABI) + return Chain; std::vector<Type *> argTypes; std::vector<const Argument *> theArgs; @@ -1067,15 +1409,20 @@ SDValue NVPTXTargetLowering::LowerFormalArguments( theArgs.push_back(I); argTypes.push_back(I->getType()); } - //assert(argTypes.size() == Ins.size() && - // "Ins types and function types did not match"); + // argTypes.size() (or theArgs.size()) and Ins.size() need not match. + // Ins.size() will be larger + // * if there is an aggregate argument with multiple fields (each field + // showing up separately in Ins) + // * if there is a vector argument with more than typical vector-length + // elements (generally if more than 4) where each vector element is + // individually present in Ins. + // So a different index should be used for indexing into Ins. + // See similar issue in LowerCall. + unsigned InsIdx = 0; int idx = 0; - for (unsigned i = 0, e = argTypes.size(); i != e; ++i, ++idx) { + for (unsigned i = 0, e = theArgs.size(); i != e; ++i, ++idx, ++InsIdx) { Type *Ty = argTypes[i]; - EVT ObjectVT = getValueType(Ty); - //assert(ObjectVT == Ins[i].VT && - // "Ins type did not match function type"); // If the kernel argument is image*_t or sampler_t, convert it to // a i32 constant holding the parameter position. This can later @@ -1091,142 +1438,248 @@ SDValue NVPTXTargetLowering::LowerFormalArguments( if (theArgs[i]->use_empty()) { // argument is dead - if (ObjectVT.isVector()) { - EVT EltVT = ObjectVT.getVectorElementType(); - unsigned NumElts = ObjectVT.getVectorNumElements(); - for (unsigned vi = 0; vi < NumElts; ++vi) { - InVals.push_back(DAG.getNode(ISD::UNDEF, dl, EltVT)); + if (Ty->isAggregateType()) { + SmallVector<EVT, 16> vtparts; + + ComputePTXValueVTs(*this, Ty, vtparts); + assert(vtparts.size() > 0 && "empty aggregate type not expected"); + for (unsigned parti = 0, parte = vtparts.size(); parti != parte; + ++parti) { + EVT partVT = vtparts[parti]; + InVals.push_back(DAG.getNode(ISD::UNDEF, dl, partVT)); + ++InsIdx; } - } else { - InVals.push_back(DAG.getNode(ISD::UNDEF, dl, ObjectVT)); + if (vtparts.size() > 0) + --InsIdx; + continue; + } + if (Ty->isVectorTy()) { + EVT ObjectVT = getValueType(Ty); + unsigned NumRegs = TLI->getNumRegisters(F->getContext(), ObjectVT); + for (unsigned parti = 0; parti < NumRegs; ++parti) { + InVals.push_back(DAG.getNode(ISD::UNDEF, dl, Ins[InsIdx].VT)); + ++InsIdx; + } + if (NumRegs > 0) + --InsIdx; + continue; } + InVals.push_back(DAG.getNode(ISD::UNDEF, dl, Ins[InsIdx].VT)); continue; } // In the following cases, assign a node order of "idx+1" - // to newly created nodes. The SDNOdes for params have to + // to newly created nodes. The SDNodes for params have to // appear in the same order as their order of appearance // in the original function. "idx+1" holds that order. if (PAL.hasAttribute(i + 1, Attribute::ByVal) == false) { - if (ObjectVT.isVector()) { + if (Ty->isAggregateType()) { + SmallVector<EVT, 16> vtparts; + SmallVector<uint64_t, 16> offsets; + + // NOTE: Here, we lose the ability to issue vector loads for vectors + // that are a part of a struct. This should be investigated in the + // future. + ComputePTXValueVTs(*this, Ty, vtparts, &offsets, 0); + assert(vtparts.size() > 0 && "empty aggregate type not expected"); + bool aggregateIsPacked = false; + if (StructType *STy = llvm::dyn_cast<StructType>(Ty)) + aggregateIsPacked = STy->isPacked(); + + SDValue Arg = getParamSymbol(DAG, idx, getPointerTy()); + for (unsigned parti = 0, parte = vtparts.size(); parti != parte; + ++parti) { + EVT partVT = vtparts[parti]; + Value *srcValue = Constant::getNullValue( + PointerType::get(partVT.getTypeForEVT(F->getContext()), + llvm::ADDRESS_SPACE_PARAM)); + SDValue srcAddr = + DAG.getNode(ISD::ADD, dl, getPointerTy(), Arg, + DAG.getConstant(offsets[parti], getPointerTy())); + unsigned partAlign = + aggregateIsPacked ? 1 + : TD->getABITypeAlignment( + partVT.getTypeForEVT(F->getContext())); + SDValue p; + if (Ins[InsIdx].VT.getSizeInBits() > partVT.getSizeInBits()) { + ISD::LoadExtType ExtOp = Ins[InsIdx].Flags.isSExt() ? + ISD::SEXTLOAD : ISD::ZEXTLOAD; + p = DAG.getExtLoad(ExtOp, dl, Ins[InsIdx].VT, Root, srcAddr, + MachinePointerInfo(srcValue), partVT, false, + false, partAlign); + } else { + p = DAG.getLoad(partVT, dl, Root, srcAddr, + MachinePointerInfo(srcValue), false, false, false, + partAlign); + } + if (p.getNode()) + p.getNode()->setIROrder(idx + 1); + InVals.push_back(p); + ++InsIdx; + } + if (vtparts.size() > 0) + --InsIdx; + continue; + } + if (Ty->isVectorTy()) { + EVT ObjectVT = getValueType(Ty); + SDValue Arg = getParamSymbol(DAG, idx, getPointerTy()); unsigned NumElts = ObjectVT.getVectorNumElements(); + assert(TLI->getNumRegisters(F->getContext(), ObjectVT) == NumElts && + "Vector was not scalarized"); + unsigned Ofst = 0; EVT EltVT = ObjectVT.getVectorElementType(); - unsigned Offset = 0; - for (unsigned vi = 0; vi < NumElts; ++vi) { - SDValue A = getParamSymbol(DAG, idx, getPointerTy()); - SDValue B = DAG.getIntPtrConstant(Offset); - SDValue Addr = DAG.getNode(ISD::ADD, dl, getPointerTy(), - //getParamSymbol(DAG, idx, EltVT), - //DAG.getConstant(Offset, getPointerTy())); - A, B); + + // V1 load + // f32 = load ... + if (NumElts == 1) { + // We only have one element, so just directly load it Value *SrcValue = Constant::getNullValue(PointerType::get( EltVT.getTypeForEVT(F->getContext()), llvm::ADDRESS_SPACE_PARAM)); - SDValue Ld = DAG.getLoad( - EltVT, dl, Root, Addr, MachinePointerInfo(SrcValue), false, false, - false, + SDValue SrcAddr = DAG.getNode(ISD::ADD, dl, getPointerTy(), Arg, + DAG.getConstant(Ofst, getPointerTy())); + SDValue P = DAG.getLoad( + EltVT, dl, Root, SrcAddr, MachinePointerInfo(SrcValue), false, + false, true, TD->getABITypeAlignment(EltVT.getTypeForEVT(F->getContext()))); - Offset += EltVT.getStoreSizeInBits() / 8; - InVals.push_back(Ld); + if (P.getNode()) + P.getNode()->setIROrder(idx + 1); + + if (Ins[InsIdx].VT.getSizeInBits() > EltVT.getSizeInBits()) + P = DAG.getNode(ISD::ANY_EXTEND, dl, Ins[InsIdx].VT, P); + InVals.push_back(P); + Ofst += TD->getTypeAllocSize(EltVT.getTypeForEVT(F->getContext())); + ++InsIdx; + } else if (NumElts == 2) { + // V2 load + // f32,f32 = load ... + EVT VecVT = EVT::getVectorVT(F->getContext(), EltVT, 2); + Value *SrcValue = Constant::getNullValue(PointerType::get( + VecVT.getTypeForEVT(F->getContext()), llvm::ADDRESS_SPACE_PARAM)); + SDValue SrcAddr = DAG.getNode(ISD::ADD, dl, getPointerTy(), Arg, + DAG.getConstant(Ofst, getPointerTy())); + SDValue P = DAG.getLoad( + VecVT, dl, Root, SrcAddr, MachinePointerInfo(SrcValue), false, + false, true, + TD->getABITypeAlignment(VecVT.getTypeForEVT(F->getContext()))); + if (P.getNode()) + P.getNode()->setIROrder(idx + 1); + + SDValue Elt0 = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, EltVT, P, + DAG.getIntPtrConstant(0)); + SDValue Elt1 = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, EltVT, P, + DAG.getIntPtrConstant(1)); + + if (Ins[InsIdx].VT.getSizeInBits() > EltVT.getSizeInBits()) { + Elt0 = DAG.getNode(ISD::ANY_EXTEND, dl, Ins[InsIdx].VT, Elt0); + Elt1 = DAG.getNode(ISD::ANY_EXTEND, dl, Ins[InsIdx].VT, Elt1); + } + + InVals.push_back(Elt0); + InVals.push_back(Elt1); + Ofst += TD->getTypeAllocSize(VecVT.getTypeForEVT(F->getContext())); + InsIdx += 2; + } else { + // V4 loads + // We have at least 4 elements (<3 x Ty> expands to 4 elements) and + // the + // vector will be expanded to a power of 2 elements, so we know we can + // always round up to the next multiple of 4 when creating the vector + // loads. + // e.g. 4 elem => 1 ld.v4 + // 6 elem => 2 ld.v4 + // 8 elem => 2 ld.v4 + // 11 elem => 3 ld.v4 + unsigned VecSize = 4; + if (EltVT.getSizeInBits() == 64) { + VecSize = 2; + } + EVT VecVT = EVT::getVectorVT(F->getContext(), EltVT, VecSize); + for (unsigned i = 0; i < NumElts; i += VecSize) { + Value *SrcValue = Constant::getNullValue( + PointerType::get(VecVT.getTypeForEVT(F->getContext()), + llvm::ADDRESS_SPACE_PARAM)); + SDValue SrcAddr = + DAG.getNode(ISD::ADD, dl, getPointerTy(), Arg, + DAG.getConstant(Ofst, getPointerTy())); + SDValue P = DAG.getLoad( + VecVT, dl, Root, SrcAddr, MachinePointerInfo(SrcValue), false, + false, true, + TD->getABITypeAlignment(VecVT.getTypeForEVT(F->getContext()))); + if (P.getNode()) + P.getNode()->setIROrder(idx + 1); + + for (unsigned j = 0; j < VecSize; ++j) { + if (i + j >= NumElts) + break; + SDValue Elt = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, EltVT, P, + DAG.getIntPtrConstant(j)); + if (Ins[InsIdx].VT.getSizeInBits() > EltVT.getSizeInBits()) + Elt = DAG.getNode(ISD::ANY_EXTEND, dl, Ins[InsIdx].VT, Elt); + InVals.push_back(Elt); + } + Ofst += TD->getTypeAllocSize(VecVT.getTypeForEVT(F->getContext())); + } + InsIdx += NumElts; } + + if (NumElts > 0) + --InsIdx; continue; } - // A plain scalar. - if (isABI || isKernel) { - // If ABI, load from the param symbol - SDValue Arg = getParamSymbol(DAG, idx); - // Conjure up a value that we can get the address space from. - // FIXME: Using a constant here is a hack. - Value *srcValue = Constant::getNullValue( - PointerType::get(ObjectVT.getTypeForEVT(F->getContext()), - llvm::ADDRESS_SPACE_PARAM)); - SDValue p = DAG.getLoad( - ObjectVT, dl, Root, Arg, MachinePointerInfo(srcValue), false, false, - false, - TD->getABITypeAlignment(ObjectVT.getTypeForEVT(F->getContext()))); - if (p.getNode()) - DAG.AssignOrdering(p.getNode(), idx + 1); - InVals.push_back(p); + EVT ObjectVT = getValueType(Ty); + // If ABI, load from the param symbol + SDValue Arg = getParamSymbol(DAG, idx, getPointerTy()); + Value *srcValue = Constant::getNullValue(PointerType::get( + ObjectVT.getTypeForEVT(F->getContext()), llvm::ADDRESS_SPACE_PARAM)); + SDValue p; + if (ObjectVT.getSizeInBits() < Ins[InsIdx].VT.getSizeInBits()) { + ISD::LoadExtType ExtOp = Ins[InsIdx].Flags.isSExt() ? + ISD::SEXTLOAD : ISD::ZEXTLOAD; + p = DAG.getExtLoad(ExtOp, dl, Ins[InsIdx].VT, Root, Arg, + MachinePointerInfo(srcValue), ObjectVT, false, false, + TD->getABITypeAlignment(ObjectVT.getTypeForEVT(F->getContext()))); } else { - // If no ABI, just move the param symbol - SDValue Arg = getParamSymbol(DAG, idx, ObjectVT); - SDValue p = DAG.getNode(NVPTXISD::MoveParam, dl, ObjectVT, Arg); - if (p.getNode()) - DAG.AssignOrdering(p.getNode(), idx + 1); - InVals.push_back(p); + p = DAG.getLoad(Ins[InsIdx].VT, dl, Root, Arg, + MachinePointerInfo(srcValue), false, false, false, + TD->getABITypeAlignment(ObjectVT.getTypeForEVT(F->getContext()))); } + if (p.getNode()) + p.getNode()->setIROrder(idx + 1); + InVals.push_back(p); continue; } // Param has ByVal attribute - if (isABI || isKernel) { - // Return MoveParam(param symbol). - // Ideally, the param symbol can be returned directly, - // but when SDNode builder decides to use it in a CopyToReg(), - // machine instruction fails because TargetExternalSymbol - // (not lowered) is target dependent, and CopyToReg assumes - // the source is lowered. - SDValue Arg = getParamSymbol(DAG, idx, getPointerTy()); - SDValue p = DAG.getNode(NVPTXISD::MoveParam, dl, ObjectVT, Arg); - if (p.getNode()) - DAG.AssignOrdering(p.getNode(), idx + 1); - if (isKernel) - InVals.push_back(p); - else { - SDValue p2 = DAG.getNode( - ISD::INTRINSIC_WO_CHAIN, dl, ObjectVT, - DAG.getConstant(Intrinsic::nvvm_ptr_local_to_gen, MVT::i32), p); - InVals.push_back(p2); - } - } else { - // Have to move a set of param symbols to registers and - // store them locally and return the local pointer in InVals - const PointerType *elemPtrType = dyn_cast<PointerType>(argTypes[i]); - assert(elemPtrType && "Byval parameter should be a pointer type"); - Type *elemType = elemPtrType->getElementType(); - // Compute the constituent parts - SmallVector<EVT, 16> vtparts; - SmallVector<uint64_t, 16> offsets; - ComputeValueVTs(*this, elemType, vtparts, &offsets, 0); - unsigned totalsize = 0; - for (unsigned j = 0, je = vtparts.size(); j != je; ++j) - totalsize += vtparts[j].getStoreSizeInBits(); - SDValue localcopy = DAG.getFrameIndex( - MF.getFrameInfo()->CreateStackObject(totalsize / 8, 16, false), - getPointerTy()); - unsigned sizesofar = 0; - std::vector<SDValue> theChains; - for (unsigned j = 0, je = vtparts.size(); j != je; ++j) { - unsigned numElems = 1; - if (vtparts[j].isVector()) - numElems = vtparts[j].getVectorNumElements(); - for (unsigned k = 0, ke = numElems; k != ke; ++k) { - EVT tmpvt = vtparts[j]; - if (tmpvt.isVector()) - tmpvt = tmpvt.getVectorElementType(); - SDValue arg = DAG.getNode(NVPTXISD::MoveParam, dl, tmpvt, - getParamSymbol(DAG, idx, tmpvt)); - SDValue addr = - DAG.getNode(ISD::ADD, dl, getPointerTy(), localcopy, - DAG.getConstant(sizesofar, getPointerTy())); - theChains.push_back(DAG.getStore( - Chain, dl, arg, addr, MachinePointerInfo(), false, false, 0)); - sizesofar += tmpvt.getStoreSizeInBits() / 8; - ++idx; - } - } - --idx; - Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, &theChains[0], - theChains.size()); - InVals.push_back(localcopy); + // Return MoveParam(param symbol). + // Ideally, the param symbol can be returned directly, + // but when SDNode builder decides to use it in a CopyToReg(), + // machine instruction fails because TargetExternalSymbol + // (not lowered) is target dependent, and CopyToReg assumes + // the source is lowered. + EVT ObjectVT = getValueType(Ty); + assert(ObjectVT == Ins[InsIdx].VT && + "Ins type did not match function type"); + SDValue Arg = getParamSymbol(DAG, idx, getPointerTy()); + SDValue p = DAG.getNode(NVPTXISD::MoveParam, dl, ObjectVT, Arg); + if (p.getNode()) + p.getNode()->setIROrder(idx + 1); + if (isKernel) + InVals.push_back(p); + else { + SDValue p2 = DAG.getNode( + ISD::INTRINSIC_WO_CHAIN, dl, ObjectVT, + DAG.getConstant(Intrinsic::nvvm_ptr_local_to_gen, MVT::i32), p); + InVals.push_back(p2); } } // Clang will check explicit VarArg and issue error if any. However, Clang // will let code with - // implicit var arg like f() pass. + // implicit var arg like f() pass. See bug 617733. // We treat this case as if the arg list is empty. - //if (F.isVarArg()) { + // if (F.isVarArg()) { // assert(0 && "VarArg not supported yet!"); //} @@ -1237,43 +1690,185 @@ SDValue NVPTXTargetLowering::LowerFormalArguments( return Chain; } -SDValue NVPTXTargetLowering::LowerReturn( - SDValue Chain, CallingConv::ID CallConv, bool isVarArg, - const SmallVectorImpl<ISD::OutputArg> &Outs, - const SmallVectorImpl<SDValue> &OutVals, DebugLoc dl, - SelectionDAG &DAG) const { + +SDValue +NVPTXTargetLowering::LowerReturn(SDValue Chain, CallingConv::ID CallConv, + bool isVarArg, + const SmallVectorImpl<ISD::OutputArg> &Outs, + const SmallVectorImpl<SDValue> &OutVals, + SDLoc dl, SelectionDAG &DAG) const { + MachineFunction &MF = DAG.getMachineFunction(); + const Function *F = MF.getFunction(); + Type *RetTy = F->getReturnType(); + const DataLayout *TD = getDataLayout(); bool isABI = (nvptxSubtarget.getSmVersion() >= 20); + assert(isABI && "Non-ABI compilation is not supported"); + if (!isABI) + return Chain; + + if (VectorType *VTy = dyn_cast<VectorType>(RetTy)) { + // If we have a vector type, the OutVals array will be the scalarized + // components and we have combine them into 1 or more vector stores. + unsigned NumElts = VTy->getNumElements(); + assert(NumElts == Outs.size() && "Bad scalarization of return value"); + + // const_cast can be removed in later LLVM versions + EVT EltVT = getValueType(RetTy).getVectorElementType(); + bool NeedExtend = false; + if (EltVT.getSizeInBits() < 16) + NeedExtend = true; + + // V1 store + if (NumElts == 1) { + SDValue StoreVal = OutVals[0]; + // We only have one element, so just directly store it + if (NeedExtend) + StoreVal = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i16, StoreVal); + SDValue Ops[] = { Chain, DAG.getConstant(0, MVT::i32), StoreVal }; + Chain = DAG.getMemIntrinsicNode(NVPTXISD::StoreRetval, dl, + DAG.getVTList(MVT::Other), &Ops[0], 3, + EltVT, MachinePointerInfo()); + + } else if (NumElts == 2) { + // V2 store + SDValue StoreVal0 = OutVals[0]; + SDValue StoreVal1 = OutVals[1]; + + if (NeedExtend) { + StoreVal0 = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i16, StoreVal0); + StoreVal1 = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i16, StoreVal1); + } - unsigned sizesofar = 0; - unsigned idx = 0; - for (unsigned i = 0, e = Outs.size(); i != e; ++i) { - SDValue theVal = OutVals[i]; - EVT theValType = theVal.getValueType(); - unsigned numElems = 1; - if (theValType.isVector()) - numElems = theValType.getVectorNumElements(); - for (unsigned j = 0, je = numElems; j != je; ++j) { - SDValue tmpval = theVal; - if (theValType.isVector()) - tmpval = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, - theValType.getVectorElementType(), tmpval, - DAG.getIntPtrConstant(j)); - Chain = DAG.getNode( - isABI ? NVPTXISD::StoreRetval : NVPTXISD::MoveToRetval, dl, - MVT::Other, Chain, DAG.getConstant(isABI ? sizesofar : idx, MVT::i32), - tmpval); - if (theValType.isVector()) - sizesofar += theValType.getVectorElementType().getStoreSizeInBits() / 8; - else - sizesofar += theValType.getStoreSizeInBits() / 8; - ++idx; + SDValue Ops[] = { Chain, DAG.getConstant(0, MVT::i32), StoreVal0, + StoreVal1 }; + Chain = DAG.getMemIntrinsicNode(NVPTXISD::StoreRetvalV2, dl, + DAG.getVTList(MVT::Other), &Ops[0], 4, + EltVT, MachinePointerInfo()); + } else { + // V4 stores + // We have at least 4 elements (<3 x Ty> expands to 4 elements) and the + // vector will be expanded to a power of 2 elements, so we know we can + // always round up to the next multiple of 4 when creating the vector + // stores. + // e.g. 4 elem => 1 st.v4 + // 6 elem => 2 st.v4 + // 8 elem => 2 st.v4 + // 11 elem => 3 st.v4 + + unsigned VecSize = 4; + if (OutVals[0].getValueType().getSizeInBits() == 64) + VecSize = 2; + + unsigned Offset = 0; + + EVT VecVT = + EVT::getVectorVT(F->getContext(), OutVals[0].getValueType(), VecSize); + unsigned PerStoreOffset = + TD->getTypeAllocSize(VecVT.getTypeForEVT(F->getContext())); + + for (unsigned i = 0; i < NumElts; i += VecSize) { + // Get values + SDValue StoreVal; + SmallVector<SDValue, 8> Ops; + Ops.push_back(Chain); + Ops.push_back(DAG.getConstant(Offset, MVT::i32)); + unsigned Opc = NVPTXISD::StoreRetvalV2; + EVT ExtendedVT = (NeedExtend) ? MVT::i16 : OutVals[0].getValueType(); + + StoreVal = OutVals[i]; + if (NeedExtend) + StoreVal = DAG.getNode(ISD::ZERO_EXTEND, dl, ExtendedVT, StoreVal); + Ops.push_back(StoreVal); + + if (i + 1 < NumElts) { + StoreVal = OutVals[i + 1]; + if (NeedExtend) + StoreVal = DAG.getNode(ISD::ZERO_EXTEND, dl, ExtendedVT, StoreVal); + } else { + StoreVal = DAG.getUNDEF(ExtendedVT); + } + Ops.push_back(StoreVal); + + if (VecSize == 4) { + Opc = NVPTXISD::StoreRetvalV4; + if (i + 2 < NumElts) { + StoreVal = OutVals[i + 2]; + if (NeedExtend) + StoreVal = + DAG.getNode(ISD::ZERO_EXTEND, dl, ExtendedVT, StoreVal); + } else { + StoreVal = DAG.getUNDEF(ExtendedVT); + } + Ops.push_back(StoreVal); + + if (i + 3 < NumElts) { + StoreVal = OutVals[i + 3]; + if (NeedExtend) + StoreVal = + DAG.getNode(ISD::ZERO_EXTEND, dl, ExtendedVT, StoreVal); + } else { + StoreVal = DAG.getUNDEF(ExtendedVT); + } + Ops.push_back(StoreVal); + } + + // Chain = DAG.getNode(Opc, dl, MVT::Other, &Ops[0], Ops.size()); + Chain = + DAG.getMemIntrinsicNode(Opc, dl, DAG.getVTList(MVT::Other), &Ops[0], + Ops.size(), EltVT, MachinePointerInfo()); + Offset += PerStoreOffset; + } + } + } else { + SmallVector<EVT, 16> ValVTs; + // const_cast is necessary since we are still using an LLVM version from + // before the type system re-write. + ComputePTXValueVTs(*this, RetTy, ValVTs); + assert(ValVTs.size() == OutVals.size() && "Bad return value decomposition"); + + unsigned SizeSoFar = 0; + for (unsigned i = 0, e = Outs.size(); i != e; ++i) { + SDValue theVal = OutVals[i]; + EVT TheValType = theVal.getValueType(); + unsigned numElems = 1; + if (TheValType.isVector()) + numElems = TheValType.getVectorNumElements(); + for (unsigned j = 0, je = numElems; j != je; ++j) { + SDValue TmpVal = theVal; + if (TheValType.isVector()) + TmpVal = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, + TheValType.getVectorElementType(), TmpVal, + DAG.getIntPtrConstant(j)); + EVT TheStoreType = ValVTs[i]; + if (RetTy->isIntegerTy() && + TD->getTypeAllocSizeInBits(RetTy) < 32) { + // The following zero-extension is for integer types only, and + // specifically not for aggregates. + TmpVal = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i32, TmpVal); + TheStoreType = MVT::i32; + } + else if (TmpVal.getValueType().getSizeInBits() < 16) + TmpVal = DAG.getNode(ISD::ANY_EXTEND, dl, MVT::i16, TmpVal); + + SDValue Ops[] = { Chain, DAG.getConstant(SizeSoFar, MVT::i32), TmpVal }; + Chain = DAG.getMemIntrinsicNode(NVPTXISD::StoreRetval, dl, + DAG.getVTList(MVT::Other), &Ops[0], + 3, TheStoreType, + MachinePointerInfo()); + if(TheValType.isVector()) + SizeSoFar += + TheStoreType.getVectorElementType().getStoreSizeInBits() / 8; + else + SizeSoFar += TheStoreType.getStoreSizeInBits()/8; + } } } return DAG.getNode(NVPTXISD::RET_FLAG, dl, MVT::Other, Chain); } + void NVPTXTargetLowering::LowerAsmOperandForConstraint( SDValue Op, std::string &Constraint, std::vector<SDValue> &Ops, SelectionDAG &DAG) const { @@ -1337,9 +1932,9 @@ bool NVPTXTargetLowering::getTgtMemIntrinsic( Info.opc = ISD::INTRINSIC_W_CHAIN; if (Intrinsic == Intrinsic::nvvm_ldu_global_i) - Info.memVT = MVT::i32; + Info.memVT = getValueType(I.getType()); else if (Intrinsic == Intrinsic::nvvm_ldu_global_p) - Info.memVT = getPointerTy(); + Info.memVT = getValueType(I.getType()); else Info.memVT = MVT::f32; Info.ptrVal = I.getArgOperand(0); @@ -1420,11 +2015,11 @@ NVPTXTargetLowering::getConstraintType(const std::string &Constraint) const { std::pair<unsigned, const TargetRegisterClass *> NVPTXTargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint, - EVT VT) const { + MVT VT) const { if (Constraint.size() == 1) { switch (Constraint[0]) { case 'c': - return std::make_pair(0U, &NVPTX::Int8RegsRegClass); + return std::make_pair(0U, &NVPTX::Int16RegsRegClass); case 'h': return std::make_pair(0U, &NVPTX::Int16RegsRegClass); case 'r': @@ -1450,7 +2045,7 @@ unsigned NVPTXTargetLowering::getFunctionAlignment(const Function *) const { static void ReplaceLoadVector(SDNode *N, SelectionDAG &DAG, SmallVectorImpl<SDValue> &Results) { EVT ResVT = N->getValueType(0); - DebugLoc DL = N->getDebugLoc(); + SDLoc DL(N); assert(ResVT.isVector() && "Vector load must have vector type"); @@ -1543,7 +2138,7 @@ static void ReplaceINTRINSIC_W_CHAIN(SDNode *N, SelectionDAG &DAG, SmallVectorImpl<SDValue> &Results) { SDValue Chain = N->getOperand(0); SDValue Intrin = N->getOperand(1); - DebugLoc DL = N->getDebugLoc(); + SDLoc DL(N); // Get the intrinsic ID unsigned IntrinNo = cast<ConstantSDNode>(Intrin.getNode())->getZExtValue(); @@ -1564,7 +2159,8 @@ static void ReplaceINTRINSIC_W_CHAIN(SDNode *N, SelectionDAG &DAG, unsigned NumElts = ResVT.getVectorNumElements(); EVT EltVT = ResVT.getVectorElementType(); - // Since LDU/LDG are target nodes, we cannot rely on DAG type legalization. + // Since LDU/LDG are target nodes, we cannot rely on DAG type + // legalization. // Therefore, we must ensure the type is legal. For i1 and i8, we set the // loaded type to i16 and propogate the "real" type as the memory type. bool NeedTrunc = false; @@ -1623,7 +2219,7 @@ static void ReplaceINTRINSIC_W_CHAIN(SDNode *N, SelectionDAG &DAG, OtherOps.push_back(Chain); // Chain // Skip operand 1 (intrinsic ID) - // Others + // Others for (unsigned i = 2, e = N->getNumOperands(); i != e; ++i) OtherOps.push_back(N->getOperand(i)); @@ -1671,7 +2267,8 @@ static void ReplaceINTRINSIC_W_CHAIN(SDNode *N, SelectionDAG &DAG, DAG.getMemIntrinsicNode(ISD::INTRINSIC_W_CHAIN, DL, LdResVTs, &Ops[0], Ops.size(), MVT::i8, MemSD->getMemOperand()); - Results.push_back(NewLD.getValue(0)); + Results.push_back(DAG.getNode(ISD::TRUNCATE, DL, MVT::i8, + NewLD.getValue(0))); Results.push_back(NewLD.getValue(1)); } } @@ -1691,3 +2288,29 @@ void NVPTXTargetLowering::ReplaceNodeResults( return; } } + +// Pin NVPTXSection's and NVPTXTargetObjectFile's vtables to this file. +void NVPTXSection::anchor() {} + +NVPTXTargetObjectFile::~NVPTXTargetObjectFile() { + delete TextSection; + delete DataSection; + delete BSSSection; + delete ReadOnlySection; + + delete StaticCtorSection; + delete StaticDtorSection; + delete LSDASection; + delete EHFrameSection; + delete DwarfAbbrevSection; + delete DwarfInfoSection; + delete DwarfLineSection; + delete DwarfFrameSection; + delete DwarfPubTypesSection; + delete DwarfDebugInlineSection; + delete DwarfStrSection; + delete DwarfLocSection; + delete DwarfARangesSection; + delete DwarfRangesSection; + delete DwarfMacroInfoSection; +} |
