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NVPTXISelDAGToDAG.cpp
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//===-- NVPTXISelDAGToDAG.cpp - A dag to dag inst selector for NVPTX ------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines an instruction selector for the NVPTX target.
//
//===----------------------------------------------------------------------===//
#include "NVPTXISelDAGToDAG.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/Instructions.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetIntrinsicInfo.h"
#undef DEBUG_TYPE
#define DEBUG_TYPE "nvptx-isel"
using namespace llvm;
static cl::opt<bool> UseFMADInstruction(
"nvptx-mad-enable", cl::ZeroOrMore,
cl::desc("NVPTX Specific: Enable generating FMAD instructions"),
cl::init(false));
static cl::opt<int>
FMAContractLevel("nvptx-fma-level", cl::ZeroOrMore,
cl::desc("NVPTX Specific: FMA contraction (0: don't do it"
" 1: do it 2: do it aggressively"),
cl::init(2));
static cl::opt<int> UsePrecDivF32(
"nvptx-prec-divf32", cl::ZeroOrMore,
cl::desc("NVPTX Specifies: 0 use div.approx, 1 use div.full, 2 use"
" IEEE Compliant F32 div.rnd if avaiable."),
cl::init(2));
/// createNVPTXISelDag - This pass converts a legalized DAG into a
/// NVPTX-specific DAG, ready for instruction scheduling.
FunctionPass *llvm::createNVPTXISelDag(NVPTXTargetMachine &TM,
llvm::CodeGenOpt::Level OptLevel) {
return new NVPTXDAGToDAGISel(TM, OptLevel);
}
NVPTXDAGToDAGISel::NVPTXDAGToDAGISel(NVPTXTargetMachine &tm,
CodeGenOpt::Level OptLevel)
: SelectionDAGISel(tm, OptLevel),
Subtarget(tm.getSubtarget<NVPTXSubtarget>()) {
// Always do fma.f32 fpcontract if the target supports the instruction.
// Always do fma.f64 fpcontract if the target supports the instruction.
// Do mad.f32 is nvptx-mad-enable is specified and the target does not
// support fma.f32.
doFMADF32 = (OptLevel > 0) && UseFMADInstruction && !Subtarget.hasFMAF32();
doFMAF32 = (OptLevel > 0) && Subtarget.hasFMAF32() && (FMAContractLevel >= 1);
doFMAF64 = (OptLevel > 0) && Subtarget.hasFMAF64() && (FMAContractLevel >= 1);
doFMAF32AGG =
(OptLevel > 0) && Subtarget.hasFMAF32() && (FMAContractLevel == 2);
doFMAF64AGG =
(OptLevel > 0) && Subtarget.hasFMAF64() && (FMAContractLevel == 2);
allowFMA = (FMAContractLevel >= 1) || UseFMADInstruction;
UseF32FTZ = false;
doMulWide = (OptLevel > 0);
// Decide how to translate f32 div
do_DIVF32_PREC = UsePrecDivF32;
// sm less than sm_20 does not support div.rnd. Use div.full.
if (do_DIVF32_PREC == 2 && !Subtarget.reqPTX20())
do_DIVF32_PREC = 1;
}
/// Select - Select instructions not customized! Used for
/// expanded, promoted and normal instructions.
SDNode *NVPTXDAGToDAGISel::Select(SDNode *N) {
if (N->isMachineOpcode())
return NULL; // Already selected.
SDNode *ResNode = NULL;
switch (N->getOpcode()) {
case ISD::LOAD:
ResNode = SelectLoad(N);
break;
case ISD::STORE:
ResNode = SelectStore(N);
break;
case NVPTXISD::LoadV2:
case NVPTXISD::LoadV4:
ResNode = SelectLoadVector(N);
break;
case NVPTXISD::LDGV2:
case NVPTXISD::LDGV4:
case NVPTXISD::LDUV2:
case NVPTXISD::LDUV4:
ResNode = SelectLDGLDUVector(N);
break;
case NVPTXISD::StoreV2:
case NVPTXISD::StoreV4:
ResNode = SelectStoreVector(N);
break;
default:
break;
}
if (ResNode)
return ResNode;
return SelectCode(N);
}
static unsigned int getCodeAddrSpace(MemSDNode *N,
const NVPTXSubtarget &Subtarget) {
const Value *Src = N->getSrcValue();
if (!Src)
return NVPTX::PTXLdStInstCode::LOCAL;
if (const PointerType *PT = dyn_cast<PointerType>(Src->getType())) {
switch (PT->getAddressSpace()) {
case llvm::ADDRESS_SPACE_LOCAL:
return NVPTX::PTXLdStInstCode::LOCAL;
case llvm::ADDRESS_SPACE_GLOBAL:
return NVPTX::PTXLdStInstCode::GLOBAL;
case llvm::ADDRESS_SPACE_SHARED:
return NVPTX::PTXLdStInstCode::SHARED;
case llvm::ADDRESS_SPACE_CONST_NOT_GEN:
return NVPTX::PTXLdStInstCode::CONSTANT;
case llvm::ADDRESS_SPACE_GENERIC:
return NVPTX::PTXLdStInstCode::GENERIC;
case llvm::ADDRESS_SPACE_PARAM:
return NVPTX::PTXLdStInstCode::PARAM;
case llvm::ADDRESS_SPACE_CONST:
// If the arch supports generic address space, translate it to GLOBAL
// for correctness.
// If the arch does not support generic address space, then the arch
// does not really support ADDRESS_SPACE_CONST, translate it to
// to CONSTANT for better performance.
if (Subtarget.hasGenericLdSt())
return NVPTX::PTXLdStInstCode::GLOBAL;
else
return NVPTX::PTXLdStInstCode::CONSTANT;
default:
break;
}
}
return NVPTX::PTXLdStInstCode::LOCAL;
}
SDNode *NVPTXDAGToDAGISel::SelectLoad(SDNode *N) {
DebugLoc dl = N->getDebugLoc();
LoadSDNode *LD = cast<LoadSDNode>(N);
EVT LoadedVT = LD->getMemoryVT();
SDNode *NVPTXLD = NULL;
// do not support pre/post inc/dec
if (LD->isIndexed())
return NULL;
if (!LoadedVT.isSimple())
return NULL;
// Address Space Setting
unsigned int codeAddrSpace = getCodeAddrSpace(LD, Subtarget);
// Volatile Setting
// - .volatile is only availalble for .global and .shared
bool isVolatile = LD->isVolatile();
if (codeAddrSpace != NVPTX::PTXLdStInstCode::GLOBAL &&
codeAddrSpace != NVPTX::PTXLdStInstCode::SHARED &&
codeAddrSpace != NVPTX::PTXLdStInstCode::GENERIC)
isVolatile = false;
// Vector Setting
MVT SimpleVT = LoadedVT.getSimpleVT();
unsigned vecType = NVPTX::PTXLdStInstCode::Scalar;
if (SimpleVT.isVector()) {
unsigned num = SimpleVT.getVectorNumElements();
if (num == 2)
vecType = NVPTX::PTXLdStInstCode::V2;
else if (num == 4)
vecType = NVPTX::PTXLdStInstCode::V4;
else
return NULL;
}
// Type Setting: fromType + fromTypeWidth
//
// Sign : ISD::SEXTLOAD
// Unsign : ISD::ZEXTLOAD, ISD::NON_EXTLOAD or ISD::EXTLOAD and the
// type is integer
// Float : ISD::NON_EXTLOAD or ISD::EXTLOAD and the type is float
MVT ScalarVT = SimpleVT.getScalarType();
unsigned fromTypeWidth = ScalarVT.getSizeInBits();
unsigned int fromType;
if ((LD->getExtensionType() == ISD::SEXTLOAD))
fromType = NVPTX::PTXLdStInstCode::Signed;
else if (ScalarVT.isFloatingPoint())
fromType = NVPTX::PTXLdStInstCode::Float;
else
fromType = NVPTX::PTXLdStInstCode::Unsigned;
// Create the machine instruction DAG
SDValue Chain = N->getOperand(0);
SDValue N1 = N->getOperand(1);
SDValue Addr;
SDValue Offset, Base;
unsigned Opcode;
MVT::SimpleValueType TargetVT = LD->getValueType(0).getSimpleVT().SimpleTy;
if (SelectDirectAddr(N1, Addr)) {
switch (TargetVT) {
case MVT::i8:
Opcode = NVPTX::LD_i8_avar;
break;
case MVT::i16:
Opcode = NVPTX::LD_i16_avar;
break;
case MVT::i32:
Opcode = NVPTX::LD_i32_avar;
break;
case MVT::i64:
Opcode = NVPTX::LD_i64_avar;
break;
case MVT::f32:
Opcode = NVPTX::LD_f32_avar;
break;
case MVT::f64:
Opcode = NVPTX::LD_f64_avar;
break;
default:
return NULL;
}
SDValue Ops[] = { getI32Imm(isVolatile), getI32Imm(codeAddrSpace),
getI32Imm(vecType), getI32Imm(fromType),
getI32Imm(fromTypeWidth), Addr, Chain };
NVPTXLD = CurDAG->getMachineNode(Opcode, dl, TargetVT, MVT::Other, Ops, 7);
} else if (Subtarget.is64Bit()
? SelectADDRsi64(N1.getNode(), N1, Base, Offset)
: SelectADDRsi(N1.getNode(), N1, Base, Offset)) {
switch (TargetVT) {
case MVT::i8:
Opcode = NVPTX::LD_i8_asi;
break;
case MVT::i16:
Opcode = NVPTX::LD_i16_asi;
break;
case MVT::i32:
Opcode = NVPTX::LD_i32_asi;
break;
case MVT::i64:
Opcode = NVPTX::LD_i64_asi;
break;
case MVT::f32:
Opcode = NVPTX::LD_f32_asi;
break;
case MVT::f64:
Opcode = NVPTX::LD_f64_asi;
break;
default:
return NULL;
}
SDValue Ops[] = { getI32Imm(isVolatile), getI32Imm(codeAddrSpace),
getI32Imm(vecType), getI32Imm(fromType),
getI32Imm(fromTypeWidth), Base, Offset, Chain };
NVPTXLD = CurDAG->getMachineNode(Opcode, dl, TargetVT, MVT::Other, Ops, 8);
} else if (Subtarget.is64Bit()
? SelectADDRri64(N1.getNode(), N1, Base, Offset)
: SelectADDRri(N1.getNode(), N1, Base, Offset)) {
if (Subtarget.is64Bit()) {
switch (TargetVT) {
case MVT::i8:
Opcode = NVPTX::LD_i8_ari_64;
break;
case MVT::i16:
Opcode = NVPTX::LD_i16_ari_64;
break;
case MVT::i32:
Opcode = NVPTX::LD_i32_ari_64;
break;
case MVT::i64:
Opcode = NVPTX::LD_i64_ari_64;
break;
case MVT::f32:
Opcode = NVPTX::LD_f32_ari_64;
break;
case MVT::f64:
Opcode = NVPTX::LD_f64_ari_64;
break;
default:
return NULL;
}
} else {
switch (TargetVT) {
case MVT::i8:
Opcode = NVPTX::LD_i8_ari;
break;
case MVT::i16:
Opcode = NVPTX::LD_i16_ari;
break;
case MVT::i32:
Opcode = NVPTX::LD_i32_ari;
break;
case MVT::i64:
Opcode = NVPTX::LD_i64_ari;
break;
case MVT::f32:
Opcode = NVPTX::LD_f32_ari;
break;
case MVT::f64:
Opcode = NVPTX::LD_f64_ari;
break;
default:
return NULL;
}
}
SDValue Ops[] = { getI32Imm(isVolatile), getI32Imm(codeAddrSpace),
getI32Imm(vecType), getI32Imm(fromType),
getI32Imm(fromTypeWidth), Base, Offset, Chain };
NVPTXLD = CurDAG->getMachineNode(Opcode, dl, TargetVT, MVT::Other, Ops, 8);
} else {
if (Subtarget.is64Bit()) {
switch (TargetVT) {
case MVT::i8:
Opcode = NVPTX::LD_i8_areg_64;
break;
case MVT::i16:
Opcode = NVPTX::LD_i16_areg_64;
break;
case MVT::i32:
Opcode = NVPTX::LD_i32_areg_64;
break;
case MVT::i64:
Opcode = NVPTX::LD_i64_areg_64;
break;
case MVT::f32:
Opcode = NVPTX::LD_f32_areg_64;
break;
case MVT::f64:
Opcode = NVPTX::LD_f64_areg_64;
break;
default:
return NULL;
}
} else {
switch (TargetVT) {
case MVT::i8:
Opcode = NVPTX::LD_i8_areg;
break;
case MVT::i16:
Opcode = NVPTX::LD_i16_areg;
break;
case MVT::i32:
Opcode = NVPTX::LD_i32_areg;
break;
case MVT::i64:
Opcode = NVPTX::LD_i64_areg;
break;
case MVT::f32:
Opcode = NVPTX::LD_f32_areg;
break;
case MVT::f64:
Opcode = NVPTX::LD_f64_areg;
break;
default:
return NULL;
}
}
SDValue Ops[] = { getI32Imm(isVolatile), getI32Imm(codeAddrSpace),
getI32Imm(vecType), getI32Imm(fromType),
getI32Imm(fromTypeWidth), N1, Chain };
NVPTXLD = CurDAG->getMachineNode(Opcode, dl, TargetVT, MVT::Other, Ops, 7);
}
if (NVPTXLD != NULL) {
MachineSDNode::mmo_iterator MemRefs0 = MF->allocateMemRefsArray(1);
MemRefs0[0] = cast<MemSDNode>(N)->getMemOperand();
cast<MachineSDNode>(NVPTXLD)->setMemRefs(MemRefs0, MemRefs0 + 1);
}
return NVPTXLD;
}
SDNode *NVPTXDAGToDAGISel::SelectLoadVector(SDNode *N) {
SDValue Chain = N->getOperand(0);
SDValue Op1 = N->getOperand(1);
SDValue Addr, Offset, Base;
unsigned Opcode;
DebugLoc DL = N->getDebugLoc();
SDNode *LD;
MemSDNode *MemSD = cast<MemSDNode>(N);
EVT LoadedVT = MemSD->getMemoryVT();
if (!LoadedVT.isSimple())
return NULL;
// Address Space Setting
unsigned int CodeAddrSpace = getCodeAddrSpace(MemSD, Subtarget);
// Volatile Setting
// - .volatile is only availalble for .global and .shared
bool IsVolatile = MemSD->isVolatile();
if (CodeAddrSpace != NVPTX::PTXLdStInstCode::GLOBAL &&
CodeAddrSpace != NVPTX::PTXLdStInstCode::SHARED &&
CodeAddrSpace != NVPTX::PTXLdStInstCode::GENERIC)
IsVolatile = false;
// Vector Setting
MVT SimpleVT = LoadedVT.getSimpleVT();
// Type Setting: fromType + fromTypeWidth
//
// Sign : ISD::SEXTLOAD
// Unsign : ISD::ZEXTLOAD, ISD::NON_EXTLOAD or ISD::EXTLOAD and the
// type is integer
// Float : ISD::NON_EXTLOAD or ISD::EXTLOAD and the type is float
MVT ScalarVT = SimpleVT.getScalarType();
unsigned FromTypeWidth = ScalarVT.getSizeInBits();
unsigned int FromType;
// The last operand holds the original LoadSDNode::getExtensionType() value
unsigned ExtensionType = cast<ConstantSDNode>(
N->getOperand(N->getNumOperands() - 1))->getZExtValue();
if (ExtensionType == ISD::SEXTLOAD)
FromType = NVPTX::PTXLdStInstCode::Signed;
else if (ScalarVT.isFloatingPoint())
FromType = NVPTX::PTXLdStInstCode::Float;
else
FromType = NVPTX::PTXLdStInstCode::Unsigned;
unsigned VecType;
switch (N->getOpcode()) {
case NVPTXISD::LoadV2:
VecType = NVPTX::PTXLdStInstCode::V2;
break;
case NVPTXISD::LoadV4:
VecType = NVPTX::PTXLdStInstCode::V4;
break;
default:
return NULL;
}
EVT EltVT = N->getValueType(0);
if (SelectDirectAddr(Op1, Addr)) {
switch (N->getOpcode()) {
default:
return NULL;
case NVPTXISD::LoadV2:
switch (EltVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::LDV_i8_v2_avar;
break;
case MVT::i16:
Opcode = NVPTX::LDV_i16_v2_avar;
break;
case MVT::i32:
Opcode = NVPTX::LDV_i32_v2_avar;
break;
case MVT::i64:
Opcode = NVPTX::LDV_i64_v2_avar;
break;
case MVT::f32:
Opcode = NVPTX::LDV_f32_v2_avar;
break;
case MVT::f64:
Opcode = NVPTX::LDV_f64_v2_avar;
break;
}
break;
case NVPTXISD::LoadV4:
switch (EltVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::LDV_i8_v4_avar;
break;
case MVT::i16:
Opcode = NVPTX::LDV_i16_v4_avar;
break;
case MVT::i32:
Opcode = NVPTX::LDV_i32_v4_avar;
break;
case MVT::f32:
Opcode = NVPTX::LDV_f32_v4_avar;
break;
}
break;
}
SDValue Ops[] = { getI32Imm(IsVolatile), getI32Imm(CodeAddrSpace),
getI32Imm(VecType), getI32Imm(FromType),
getI32Imm(FromTypeWidth), Addr, Chain };
LD = CurDAG->getMachineNode(Opcode, DL, N->getVTList(), Ops, 7);
} else if (Subtarget.is64Bit()
? SelectADDRsi64(Op1.getNode(), Op1, Base, Offset)
: SelectADDRsi(Op1.getNode(), Op1, Base, Offset)) {
switch (N->getOpcode()) {
default:
return NULL;
case NVPTXISD::LoadV2:
switch (EltVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::LDV_i8_v2_asi;
break;
case MVT::i16:
Opcode = NVPTX::LDV_i16_v2_asi;
break;
case MVT::i32:
Opcode = NVPTX::LDV_i32_v2_asi;
break;
case MVT::i64:
Opcode = NVPTX::LDV_i64_v2_asi;
break;
case MVT::f32:
Opcode = NVPTX::LDV_f32_v2_asi;
break;
case MVT::f64:
Opcode = NVPTX::LDV_f64_v2_asi;
break;
}
break;
case NVPTXISD::LoadV4:
switch (EltVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::LDV_i8_v4_asi;
break;
case MVT::i16:
Opcode = NVPTX::LDV_i16_v4_asi;
break;
case MVT::i32:
Opcode = NVPTX::LDV_i32_v4_asi;
break;
case MVT::f32:
Opcode = NVPTX::LDV_f32_v4_asi;
break;
}
break;
}
SDValue Ops[] = { getI32Imm(IsVolatile), getI32Imm(CodeAddrSpace),
getI32Imm(VecType), getI32Imm(FromType),
getI32Imm(FromTypeWidth), Base, Offset, Chain };
LD = CurDAG->getMachineNode(Opcode, DL, N->getVTList(), Ops, 8);
} else if (Subtarget.is64Bit()
? SelectADDRri64(Op1.getNode(), Op1, Base, Offset)
: SelectADDRri(Op1.getNode(), Op1, Base, Offset)) {
if (Subtarget.is64Bit()) {
switch (N->getOpcode()) {
default:
return NULL;
case NVPTXISD::LoadV2:
switch (EltVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::LDV_i8_v2_ari_64;
break;
case MVT::i16:
Opcode = NVPTX::LDV_i16_v2_ari_64;
break;
case MVT::i32:
Opcode = NVPTX::LDV_i32_v2_ari_64;
break;
case MVT::i64:
Opcode = NVPTX::LDV_i64_v2_ari_64;
break;
case MVT::f32:
Opcode = NVPTX::LDV_f32_v2_ari_64;
break;
case MVT::f64:
Opcode = NVPTX::LDV_f64_v2_ari_64;
break;
}
break;
case NVPTXISD::LoadV4:
switch (EltVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::LDV_i8_v4_ari_64;
break;
case MVT::i16:
Opcode = NVPTX::LDV_i16_v4_ari_64;
break;
case MVT::i32:
Opcode = NVPTX::LDV_i32_v4_ari_64;
break;
case MVT::f32:
Opcode = NVPTX::LDV_f32_v4_ari_64;
break;
}
break;
}
} else {
switch (N->getOpcode()) {
default:
return NULL;
case NVPTXISD::LoadV2:
switch (EltVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::LDV_i8_v2_ari;
break;
case MVT::i16:
Opcode = NVPTX::LDV_i16_v2_ari;
break;
case MVT::i32:
Opcode = NVPTX::LDV_i32_v2_ari;
break;
case MVT::i64:
Opcode = NVPTX::LDV_i64_v2_ari;
break;
case MVT::f32:
Opcode = NVPTX::LDV_f32_v2_ari;
break;
case MVT::f64:
Opcode = NVPTX::LDV_f64_v2_ari;
break;
}
break;
case NVPTXISD::LoadV4:
switch (EltVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::LDV_i8_v4_ari;
break;
case MVT::i16:
Opcode = NVPTX::LDV_i16_v4_ari;
break;
case MVT::i32:
Opcode = NVPTX::LDV_i32_v4_ari;
break;
case MVT::f32:
Opcode = NVPTX::LDV_f32_v4_ari;
break;
}
break;
}
}
SDValue Ops[] = { getI32Imm(IsVolatile), getI32Imm(CodeAddrSpace),
getI32Imm(VecType), getI32Imm(FromType),
getI32Imm(FromTypeWidth), Base, Offset, Chain };
LD = CurDAG->getMachineNode(Opcode, DL, N->getVTList(), Ops, 8);
} else {
if (Subtarget.is64Bit()) {
switch (N->getOpcode()) {
default:
return NULL;
case NVPTXISD::LoadV2:
switch (EltVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::LDV_i8_v2_areg_64;
break;
case MVT::i16:
Opcode = NVPTX::LDV_i16_v2_areg_64;
break;
case MVT::i32:
Opcode = NVPTX::LDV_i32_v2_areg_64;
break;
case MVT::i64:
Opcode = NVPTX::LDV_i64_v2_areg_64;
break;
case MVT::f32:
Opcode = NVPTX::LDV_f32_v2_areg_64;
break;
case MVT::f64:
Opcode = NVPTX::LDV_f64_v2_areg_64;
break;
}
break;
case NVPTXISD::LoadV4:
switch (EltVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::LDV_i8_v4_areg_64;
break;
case MVT::i16:
Opcode = NVPTX::LDV_i16_v4_areg_64;
break;
case MVT::i32:
Opcode = NVPTX::LDV_i32_v4_areg_64;
break;
case MVT::f32:
Opcode = NVPTX::LDV_f32_v4_areg_64;
break;
}
break;
}
} else {
switch (N->getOpcode()) {
default:
return NULL;
case NVPTXISD::LoadV2:
switch (EltVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::LDV_i8_v2_areg;
break;
case MVT::i16:
Opcode = NVPTX::LDV_i16_v2_areg;
break;
case MVT::i32:
Opcode = NVPTX::LDV_i32_v2_areg;
break;
case MVT::i64:
Opcode = NVPTX::LDV_i64_v2_areg;
break;
case MVT::f32:
Opcode = NVPTX::LDV_f32_v2_areg;
break;
case MVT::f64:
Opcode = NVPTX::LDV_f64_v2_areg;
break;
}
break;
case NVPTXISD::LoadV4:
switch (EltVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::LDV_i8_v4_areg;
break;
case MVT::i16:
Opcode = NVPTX::LDV_i16_v4_areg;
break;
case MVT::i32:
Opcode = NVPTX::LDV_i32_v4_areg;
break;
case MVT::f32:
Opcode = NVPTX::LDV_f32_v4_areg;
break;
}
break;
}
}
SDValue Ops[] = { getI32Imm(IsVolatile), getI32Imm(CodeAddrSpace),
getI32Imm(VecType), getI32Imm(FromType),
getI32Imm(FromTypeWidth), Op1, Chain };
LD = CurDAG->getMachineNode(Opcode, DL, N->getVTList(), Ops, 7);
}
MachineSDNode::mmo_iterator MemRefs0 = MF->allocateMemRefsArray(1);
MemRefs0[0] = cast<MemSDNode>(N)->getMemOperand();
cast<MachineSDNode>(LD)->setMemRefs(MemRefs0, MemRefs0 + 1);
return LD;
}
SDNode *NVPTXDAGToDAGISel::SelectLDGLDUVector(SDNode *N) {
SDValue Chain = N->getOperand(0);
SDValue Op1 = N->getOperand(1);
unsigned Opcode;
DebugLoc DL = N->getDebugLoc();
SDNode *LD;
EVT RetVT = N->getValueType(0);
// Select opcode
if (Subtarget.is64Bit()) {
switch (N->getOpcode()) {
default:
return NULL;
case NVPTXISD::LDGV2:
switch (RetVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::INT_PTX_LDG_G_v2i8_ELE_64;
break;
case MVT::i16:
Opcode = NVPTX::INT_PTX_LDG_G_v2i16_ELE_64;
break;
case MVT::i32:
Opcode = NVPTX::INT_PTX_LDG_G_v2i32_ELE_64;
break;
case MVT::i64:
Opcode = NVPTX::INT_PTX_LDG_G_v2i64_ELE_64;
break;
case MVT::f32:
Opcode = NVPTX::INT_PTX_LDG_G_v2f32_ELE_64;
break;
case MVT::f64:
Opcode = NVPTX::INT_PTX_LDG_G_v2f64_ELE_64;
break;
}
break;
case NVPTXISD::LDGV4:
switch (RetVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::INT_PTX_LDG_G_v4i8_ELE_64;
break;
case MVT::i16:
Opcode = NVPTX::INT_PTX_LDG_G_v4i16_ELE_64;
break;
case MVT::i32:
Opcode = NVPTX::INT_PTX_LDG_G_v4i32_ELE_64;
break;
case MVT::f32:
Opcode = NVPTX::INT_PTX_LDG_G_v4f32_ELE_64;
break;
}
break;
case NVPTXISD::LDUV2:
switch (RetVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::INT_PTX_LDU_G_v2i8_ELE_64;
break;
case MVT::i16:
Opcode = NVPTX::INT_PTX_LDU_G_v2i16_ELE_64;
break;
case MVT::i32:
Opcode = NVPTX::INT_PTX_LDU_G_v2i32_ELE_64;
break;
case MVT::i64:
Opcode = NVPTX::INT_PTX_LDU_G_v2i64_ELE_64;
break;
case MVT::f32:
Opcode = NVPTX::INT_PTX_LDU_G_v2f32_ELE_64;
break;
case MVT::f64:
Opcode = NVPTX::INT_PTX_LDU_G_v2f64_ELE_64;
break;
}
break;
case NVPTXISD::LDUV4:
switch (RetVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::INT_PTX_LDU_G_v4i8_ELE_64;
break;
case MVT::i16:
Opcode = NVPTX::INT_PTX_LDU_G_v4i16_ELE_64;
break;
case MVT::i32:
Opcode = NVPTX::INT_PTX_LDU_G_v4i32_ELE_64;
break;
case MVT::f32:
Opcode = NVPTX::INT_PTX_LDU_G_v4f32_ELE_64;
break;
}
break;
}
} else {
switch (N->getOpcode()) {
default:
return NULL;
case NVPTXISD::LDGV2:
switch (RetVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::INT_PTX_LDG_G_v2i8_ELE_32;
break;
case MVT::i16:
Opcode = NVPTX::INT_PTX_LDG_G_v2i16_ELE_32;
break;
case MVT::i32:
Opcode = NVPTX::INT_PTX_LDG_G_v2i32_ELE_32;
break;
case MVT::i64:
Opcode = NVPTX::INT_PTX_LDG_G_v2i64_ELE_32;
break;
case MVT::f32:
Opcode = NVPTX::INT_PTX_LDG_G_v2f32_ELE_32;
break;
case MVT::f64:
Opcode = NVPTX::INT_PTX_LDG_G_v2f64_ELE_32;
break;
}
break;
case NVPTXISD::LDGV4:
switch (RetVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::INT_PTX_LDG_G_v4i8_ELE_32;
break;
case MVT::i16:
Opcode = NVPTX::INT_PTX_LDG_G_v4i16_ELE_32;
break;
case MVT::i32:
Opcode = NVPTX::INT_PTX_LDG_G_v4i32_ELE_32;
break;
case MVT::f32:
Opcode = NVPTX::INT_PTX_LDG_G_v4f32_ELE_32;
break;
}
break;
case NVPTXISD::LDUV2:
switch (RetVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::INT_PTX_LDU_G_v2i8_ELE_32;
break;
case MVT::i16:
Opcode = NVPTX::INT_PTX_LDU_G_v2i16_ELE_32;
break;
case MVT::i32:
Opcode = NVPTX::INT_PTX_LDU_G_v2i32_ELE_32;
break;
case MVT::i64:
Opcode = NVPTX::INT_PTX_LDU_G_v2i64_ELE_32;
break;
case MVT::f32:
Opcode = NVPTX::INT_PTX_LDU_G_v2f32_ELE_32;
break;
case MVT::f64:
Opcode = NVPTX::INT_PTX_LDU_G_v2f64_ELE_32;
break;
}
break;
case NVPTXISD::LDUV4:
switch (RetVT.getSimpleVT().SimpleTy) {
default:
return NULL;
case MVT::i8:
Opcode = NVPTX::INT_PTX_LDU_G_v4i8_ELE_32;
break;
case MVT::i16:
Opcode = NVPTX::INT_PTX_LDU_G_v4i16_ELE_32;
break;
case MVT::i32:
Opcode = NVPTX::INT_PTX_LDU_G_v4i32_ELE_32;
break;
case MVT::f32:
Opcode = NVPTX::INT_PTX_LDU_G_v4f32_ELE_32;
break;
}
break;
}
}
SDValue Ops[] = { Op1, Chain };
LD = CurDAG->getMachineNode(Opcode, DL, N->getVTList(), &Ops[0], 2);
MachineSDNode::mmo_iterator MemRefs0 = MF->allocateMemRefsArray(1);
MemRefs0[0] = cast<MemSDNode>(N)->getMemOperand();
cast<MachineSDNode>(LD)->setMemRefs(MemRefs0, MemRefs0 + 1);
return LD;
}
SDNode *NVPTXDAGToDAGISel::SelectStore(SDNode *N) {
DebugLoc dl = N->getDebugLoc();
StoreSDNode *ST = cast<StoreSDNode>(N);
EVT StoreVT = ST->getMemoryVT();
SDNode *NVPTXST = NULL;
// do not support pre/post inc/dec
if (ST->isIndexed())
return NULL;
if (!StoreVT.isSimple())
return NULL;
// Address Space Setting
unsigned int codeAddrSpace = getCodeAddrSpace(ST, Subtarget);
// Volatile Setting
// - .volatile is only availalble for .global and .shared
bool isVolatile = ST->isVolatile();
if (codeAddrSpace != NVPTX::PTXLdStInstCode::GLOBAL &&
codeAddrSpace != NVPTX::PTXLdStInstCode::SHARED &&
codeAddrSpace != NVPTX::PTXLdStInstCode::GENERIC)
isVolatile = false;
// Vector Setting
MVT SimpleVT = StoreVT.getSimpleVT();
unsigned vecType = NVPTX::PTXLdStInstCode::Scalar;