#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
+#include "llvm/IR/CallSite.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/Module.h"
#include "llvm/MC/MCSectionELF.h"
-#include "llvm/Support/CallSite.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
switch (VT.SimpleTy) {
default:
return false;
+ case MVT::v2i1:
+ case MVT::v4i1:
case MVT::v2i8:
case MVT::v4i8:
case MVT::v2i16:
}
}
+/// 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),
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);
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()) {
// 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) {
}
}
+ // 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();
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:
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:
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:
return "NVPTXISD::CallSeqBegin";
case NVPTXISD::CallSeqEnd:
return "NVPTXISD::CallSeqEnd";
+ case NVPTXISD::CallPrototype:
+ return "NVPTXISD::CallPrototype";
case NVPTXISD::LoadV2:
return "NVPTXISD::LoadV2";
case NVPTXISD::LoadV4:
}
}
-bool NVPTXTargetLowering::shouldSplitVectorElementType(EVT VT) const {
- return VT == MVT::i1;
+bool NVPTXTargetLowering::shouldSplitVectorType(EVT VT) const {
+ return VT.getScalarType() == MVT::i1;
}
SDValue
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->isFloatingPointTy() || 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 << ") ";
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();
sz = thePointerTy.getSizeInBits();
else
sz = Ty->getPrimitiveSizeInBits();
- if (isABI)
- O << ".param .b" << sz << " ";
- else
- O << ".reg .b" << sz << " ";
+ O << ".param .b" << sz << " ";
O << "_";
continue;
}
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;
SDLoc dl = CLI.DL;
- SmallVector<ISD::OutputArg, 32> &Outs = CLI.Outs;
- SmallVector<SDValue, 32> &OutVals = CLI.OutVals;
- SmallVector<ISD::InputArg, 32> &Ins = CLI.Ins;
+ 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;
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),
- dl);
+ Chain =
+ 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);
+ }
+
+ Ops.push_back(InFlag);
- if (Outs[i].Flags.isByVal() == false) {
+ 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;
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;
}
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->isSingleValueType()) {
+ // 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);
}
}
// 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);
// 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, dl);
// 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);
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);
// Since StoreV2 is a target node, we cannot rely on DAG type legalization.
// Therefore, we must ensure the type is legal. For i1 and i8, we set the
- // stored type to i16 and propogate the "real" type as the memory type.
+ // stored type to i16 and propagate the "real" type as the memory type.
bool NeedExt = false;
if (EltVT.getSizeInBits() < 16)
NeedExt = true;
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);
}
// 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();
SDLoc dl(Node);
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;
}
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) {
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;
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
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())
- p.getNode()->setIROrder(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())
- p.getNode()->setIROrder(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())
- 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);
- }
- } 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!");
//}
return Chain;
}
-SDValue NVPTXTargetLowering::LowerReturn(
- SDValue Chain, CallingConv::ID CallConv, bool isVarArg,
- const SmallVectorImpl<ISD::OutputArg> &Outs,
- const SmallVectorImpl<SDValue> &OutVals, SDLoc 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 {
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);
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':
// Since LoadV2 is a target node, 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.
+ // loaded type to i16 and propagate the "real" type as the memory type.
bool NeedTrunc = false;
if (EltVT.getSizeInBits() < 16) {
EltVT = MVT::i16;
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.
+ // loaded type to i16 and propagate the "real" type as the memory type.
bool NeedTrunc = false;
if (EltVT.getSizeInBits() < 16) {
EltVT = MVT::i16;
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));
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));
}
}
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;
+}
projects / oota-llvm.git / blobdiff