Files
mesa/src/gallium/drivers/radeon/AMDILISelLowering.cpp
T
Tom Stellard 467f51613e radeonsi: Handle TGSI CONST registers
We now emit LLVM load instructions for TGSI CONST register reads,
which are lowered in the backend to S_LOAD_DWORD* instructions.
2012-05-29 11:55:52 -04:00

4161 lines
142 KiB
C++

//===-- AMDILISelLowering.cpp - AMDIL DAG Lowering Implementation ---------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//==-----------------------------------------------------------------------===//
//
// This file implements the interfaces that AMDIL uses to lower LLVM code into a
// selection DAG.
//
//===----------------------------------------------------------------------===//
#include "AMDILISelLowering.h"
#include "AMDILDevices.h"
#include "AMDILIntrinsicInfo.h"
#include "AMDILRegisterInfo.h"
#include "AMDILSubtarget.h"
#include "AMDILUtilityFunctions.h"
#include "llvm/CallingConv.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/PseudoSourceValue.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/CodeGen/SelectionDAGNodes.h"
#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Instructions.h"
#include "llvm/Intrinsics.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetOptions.h"
using namespace llvm;
#define ISDBITCAST ISD::BITCAST
#define MVTGLUE MVT::Glue
//===----------------------------------------------------------------------===//
// Calling Convention Implementation
//===----------------------------------------------------------------------===//
#include "AMDILGenCallingConv.inc"
//===----------------------------------------------------------------------===//
// TargetLowering Implementation Help Functions Begin
//===----------------------------------------------------------------------===//
static SDValue
getConversionNode(SelectionDAG &DAG, SDValue& Src, SDValue& Dst, bool asType)
{
DebugLoc DL = Src.getDebugLoc();
EVT svt = Src.getValueType().getScalarType();
EVT dvt = Dst.getValueType().getScalarType();
if (svt.isFloatingPoint() && dvt.isFloatingPoint()) {
if (dvt.bitsGT(svt)) {
Src = DAG.getNode(ISD::FP_EXTEND, DL, dvt, Src);
} else if (svt.bitsLT(svt)) {
Src = DAG.getNode(ISD::FP_ROUND, DL, dvt, Src,
DAG.getConstant(1, MVT::i32));
}
} else if (svt.isInteger() && dvt.isInteger()) {
if (!svt.bitsEq(dvt)) {
Src = DAG.getSExtOrTrunc(Src, DL, dvt);
} else {
Src = DAG.getNode(AMDILISD::MOVE, DL, dvt, Src);
}
} else if (svt.isInteger()) {
unsigned opcode = (asType) ? ISDBITCAST : ISD::SINT_TO_FP;
if (!svt.bitsEq(dvt)) {
if (dvt.getSimpleVT().SimpleTy == MVT::f32) {
Src = DAG.getSExtOrTrunc(Src, DL, MVT::i32);
} else if (dvt.getSimpleVT().SimpleTy == MVT::f64) {
Src = DAG.getSExtOrTrunc(Src, DL, MVT::i64);
} else {
assert(0 && "We only support 32 and 64bit fp types");
}
}
Src = DAG.getNode(opcode, DL, dvt, Src);
} else if (dvt.isInteger()) {
unsigned opcode = (asType) ? ISDBITCAST : ISD::FP_TO_SINT;
if (svt.getSimpleVT().SimpleTy == MVT::f32) {
Src = DAG.getNode(opcode, DL, MVT::i32, Src);
} else if (svt.getSimpleVT().SimpleTy == MVT::f64) {
Src = DAG.getNode(opcode, DL, MVT::i64, Src);
} else {
assert(0 && "We only support 32 and 64bit fp types");
}
Src = DAG.getSExtOrTrunc(Src, DL, dvt);
}
return Src;
}
// CondCCodeToCC - Convert a DAG condition code to a AMDIL CC
// condition.
static AMDILCC::CondCodes
CondCCodeToCC(ISD::CondCode CC, const MVT::SimpleValueType& type)
{
switch (CC) {
default:
{
errs()<<"Condition Code: "<< (unsigned int)CC<<"\n";
assert(0 && "Unknown condition code!");
}
case ISD::SETO:
switch(type) {
case MVT::f32:
return AMDILCC::IL_CC_F_O;
case MVT::f64:
return AMDILCC::IL_CC_D_O;
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETUO:
switch(type) {
case MVT::f32:
return AMDILCC::IL_CC_F_UO;
case MVT::f64:
return AMDILCC::IL_CC_D_UO;
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETGT:
switch (type) {
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
return AMDILCC::IL_CC_I_GT;
case MVT::f32:
return AMDILCC::IL_CC_F_GT;
case MVT::f64:
return AMDILCC::IL_CC_D_GT;
case MVT::i64:
return AMDILCC::IL_CC_L_GT;
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETGE:
switch (type) {
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
return AMDILCC::IL_CC_I_GE;
case MVT::f32:
return AMDILCC::IL_CC_F_GE;
case MVT::f64:
return AMDILCC::IL_CC_D_GE;
case MVT::i64:
return AMDILCC::IL_CC_L_GE;
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETLT:
switch (type) {
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
return AMDILCC::IL_CC_I_LT;
case MVT::f32:
return AMDILCC::IL_CC_F_LT;
case MVT::f64:
return AMDILCC::IL_CC_D_LT;
case MVT::i64:
return AMDILCC::IL_CC_L_LT;
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETLE:
switch (type) {
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
return AMDILCC::IL_CC_I_LE;
case MVT::f32:
return AMDILCC::IL_CC_F_LE;
case MVT::f64:
return AMDILCC::IL_CC_D_LE;
case MVT::i64:
return AMDILCC::IL_CC_L_LE;
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETNE:
switch (type) {
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
return AMDILCC::IL_CC_I_NE;
case MVT::f32:
return AMDILCC::IL_CC_F_NE;
case MVT::f64:
return AMDILCC::IL_CC_D_NE;
case MVT::i64:
return AMDILCC::IL_CC_L_NE;
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETEQ:
switch (type) {
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
return AMDILCC::IL_CC_I_EQ;
case MVT::f32:
return AMDILCC::IL_CC_F_EQ;
case MVT::f64:
return AMDILCC::IL_CC_D_EQ;
case MVT::i64:
return AMDILCC::IL_CC_L_EQ;
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETUGT:
switch (type) {
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
return AMDILCC::IL_CC_U_GT;
case MVT::f32:
return AMDILCC::IL_CC_F_UGT;
case MVT::f64:
return AMDILCC::IL_CC_D_UGT;
case MVT::i64:
return AMDILCC::IL_CC_UL_GT;
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETUGE:
switch (type) {
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
return AMDILCC::IL_CC_U_GE;
case MVT::f32:
return AMDILCC::IL_CC_F_UGE;
case MVT::f64:
return AMDILCC::IL_CC_D_UGE;
case MVT::i64:
return AMDILCC::IL_CC_UL_GE;
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETULT:
switch (type) {
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
return AMDILCC::IL_CC_U_LT;
case MVT::f32:
return AMDILCC::IL_CC_F_ULT;
case MVT::f64:
return AMDILCC::IL_CC_D_ULT;
case MVT::i64:
return AMDILCC::IL_CC_UL_LT;
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETULE:
switch (type) {
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
return AMDILCC::IL_CC_U_LE;
case MVT::f32:
return AMDILCC::IL_CC_F_ULE;
case MVT::f64:
return AMDILCC::IL_CC_D_ULE;
case MVT::i64:
return AMDILCC::IL_CC_UL_LE;
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETUNE:
switch (type) {
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
return AMDILCC::IL_CC_U_NE;
case MVT::f32:
return AMDILCC::IL_CC_F_UNE;
case MVT::f64:
return AMDILCC::IL_CC_D_UNE;
case MVT::i64:
return AMDILCC::IL_CC_UL_NE;
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETUEQ:
switch (type) {
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
return AMDILCC::IL_CC_U_EQ;
case MVT::f32:
return AMDILCC::IL_CC_F_UEQ;
case MVT::f64:
return AMDILCC::IL_CC_D_UEQ;
case MVT::i64:
return AMDILCC::IL_CC_UL_EQ;
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETOGT:
switch (type) {
case MVT::f32:
return AMDILCC::IL_CC_F_OGT;
case MVT::f64:
return AMDILCC::IL_CC_D_OGT;
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
case MVT::i64:
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETOGE:
switch (type) {
case MVT::f32:
return AMDILCC::IL_CC_F_OGE;
case MVT::f64:
return AMDILCC::IL_CC_D_OGE;
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
case MVT::i64:
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETOLT:
switch (type) {
case MVT::f32:
return AMDILCC::IL_CC_F_OLT;
case MVT::f64:
return AMDILCC::IL_CC_D_OLT;
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
case MVT::i64:
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETOLE:
switch (type) {
case MVT::f32:
return AMDILCC::IL_CC_F_OLE;
case MVT::f64:
return AMDILCC::IL_CC_D_OLE;
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
case MVT::i64:
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETONE:
switch (type) {
case MVT::f32:
return AMDILCC::IL_CC_F_ONE;
case MVT::f64:
return AMDILCC::IL_CC_D_ONE;
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
case MVT::i64:
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
case ISD::SETOEQ:
switch (type) {
case MVT::f32:
return AMDILCC::IL_CC_F_OEQ;
case MVT::f64:
return AMDILCC::IL_CC_D_OEQ;
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32:
case MVT::i64:
default:
assert(0 && "Opcode combination not generated correctly!");
return AMDILCC::COND_ERROR;
};
};
}
/// Helper function used by LowerFormalArguments
static const TargetRegisterClass*
getRegClassFromType(unsigned int type) {
switch (type) {
default:
assert(0 && "Passed in type does not match any register classes.");
case MVT::i8:
return &AMDIL::GPRI8RegClass;
case MVT::i16:
return &AMDIL::GPRI16RegClass;
case MVT::i32:
return &AMDIL::GPRI32RegClass;
case MVT::f32:
return &AMDIL::GPRF32RegClass;
case MVT::i64:
return &AMDIL::GPRI64RegClass;
case MVT::f64:
return &AMDIL::GPRF64RegClass;
case MVT::v4f32:
return &AMDIL::GPRV4F32RegClass;
case MVT::v4i8:
return &AMDIL::GPRV4I8RegClass;
case MVT::v4i16:
return &AMDIL::GPRV4I16RegClass;
case MVT::v4i32:
return &AMDIL::GPRV4I32RegClass;
case MVT::v2f32:
return &AMDIL::GPRV2F32RegClass;
case MVT::v2i8:
return &AMDIL::GPRV2I8RegClass;
case MVT::v2i16:
return &AMDIL::GPRV2I16RegClass;
case MVT::v2i32:
return &AMDIL::GPRV2I32RegClass;
case MVT::v2f64:
return &AMDIL::GPRV2F64RegClass;
case MVT::v2i64:
return &AMDIL::GPRV2I64RegClass;
}
}
SDValue
AMDILTargetLowering::LowerMemArgument(
SDValue Chain,
CallingConv::ID CallConv,
const SmallVectorImpl<ISD::InputArg> &Ins,
DebugLoc dl, SelectionDAG &DAG,
const CCValAssign &VA,
MachineFrameInfo *MFI,
unsigned i) const
{
// Create the nodes corresponding to a load from this parameter slot.
ISD::ArgFlagsTy Flags = Ins[i].Flags;
bool AlwaysUseMutable = (CallConv==CallingConv::Fast) &&
getTargetMachine().Options.GuaranteedTailCallOpt;
bool isImmutable = !AlwaysUseMutable && !Flags.isByVal();
// FIXME: For now, all byval parameter objects are marked mutable. This can
// be changed with more analysis.
// In case of tail call optimization mark all arguments mutable. Since they
// could be overwritten by lowering of arguments in case of a tail call.
int FI = MFI->CreateFixedObject(VA.getValVT().getSizeInBits()/8,
VA.getLocMemOffset(), isImmutable);
SDValue FIN = DAG.getFrameIndex(FI, getPointerTy());
if (Flags.isByVal())
return FIN;
return DAG.getLoad(VA.getValVT(), dl, Chain, FIN,
MachinePointerInfo::getFixedStack(FI),
false, false, false, 0);
}
//===----------------------------------------------------------------------===//
// TargetLowering Implementation Help Functions End
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// Instruction generation functions
//===----------------------------------------------------------------------===//
MachineOperand
AMDILTargetLowering::convertToReg(MachineOperand op) const
{
if (op.isReg()) {
return op;
} else if (op.isImm()) {
uint32_t loadReg
= genVReg(op.getParent()->getDesc().OpInfo[0].RegClass);
generateMachineInst(AMDIL::LOADCONST_i32, loadReg)
.addImm(op.getImm());
op.ChangeToRegister(loadReg, false);
} else if (op.isFPImm()) {
uint32_t loadReg
= genVReg(op.getParent()->getDesc().OpInfo[0].RegClass);
generateMachineInst(AMDIL::LOADCONST_f32, loadReg)
.addFPImm(op.getFPImm());
op.ChangeToRegister(loadReg, false);
} else if (op.isMBB()) {
op.ChangeToRegister(0, false);
} else if (op.isFI()) {
op.ChangeToRegister(0, false);
} else if (op.isCPI()) {
op.ChangeToRegister(0, false);
} else if (op.isJTI()) {
op.ChangeToRegister(0, false);
} else if (op.isGlobal()) {
op.ChangeToRegister(0, false);
} else if (op.isSymbol()) {
op.ChangeToRegister(0, false);
}/* else if (op.isMetadata()) {
op.ChangeToRegister(0, false);
}*/
return op;
}
//===----------------------------------------------------------------------===//
// TargetLowering Class Implementation Begins
//===----------------------------------------------------------------------===//
AMDILTargetLowering::AMDILTargetLowering(TargetMachine &TM)
: TargetLowering(TM, new TargetLoweringObjectFileELF())
{
int types[] =
{
(int)MVT::i8,
(int)MVT::i16,
(int)MVT::i32,
(int)MVT::f32,
(int)MVT::f64,
(int)MVT::i64,
(int)MVT::v2i8,
(int)MVT::v4i8,
(int)MVT::v2i16,
(int)MVT::v4i16,
(int)MVT::v4f32,
(int)MVT::v4i32,
(int)MVT::v2f32,
(int)MVT::v2i32,
(int)MVT::v2f64,
(int)MVT::v2i64
};
int IntTypes[] =
{
(int)MVT::i8,
(int)MVT::i16,
(int)MVT::i32,
(int)MVT::i64
};
int FloatTypes[] =
{
(int)MVT::f32,
(int)MVT::f64
};
int VectorTypes[] =
{
(int)MVT::v2i8,
(int)MVT::v4i8,
(int)MVT::v2i16,
(int)MVT::v4i16,
(int)MVT::v4f32,
(int)MVT::v4i32,
(int)MVT::v2f32,
(int)MVT::v2i32,
(int)MVT::v2f64,
(int)MVT::v2i64
};
size_t numTypes = sizeof(types) / sizeof(*types);
size_t numFloatTypes = sizeof(FloatTypes) / sizeof(*FloatTypes);
size_t numIntTypes = sizeof(IntTypes) / sizeof(*IntTypes);
size_t numVectorTypes = sizeof(VectorTypes) / sizeof(*VectorTypes);
const AMDILSubtarget &STM = getTargetMachine().getSubtarget<AMDILSubtarget>();
// These are the current register classes that are
// supported
addRegisterClass(MVT::i32, AMDIL::GPRI32RegisterClass);
addRegisterClass(MVT::f32, AMDIL::GPRF32RegisterClass);
if (STM.device()->isSupported(AMDILDeviceInfo::DoubleOps)) {
addRegisterClass(MVT::f64, AMDIL::GPRF64RegisterClass);
addRegisterClass(MVT::v2f64, AMDIL::GPRV2F64RegisterClass);
}
if (STM.device()->isSupported(AMDILDeviceInfo::ByteOps)) {
addRegisterClass(MVT::i8, AMDIL::GPRI8RegisterClass);
addRegisterClass(MVT::v2i8, AMDIL::GPRV2I8RegisterClass);
addRegisterClass(MVT::v4i8, AMDIL::GPRV4I8RegisterClass);
setOperationAction(ISD::Constant , MVT::i8 , Legal);
}
if (STM.device()->isSupported(AMDILDeviceInfo::ShortOps)) {
addRegisterClass(MVT::i16, AMDIL::GPRI16RegisterClass);
addRegisterClass(MVT::v2i16, AMDIL::GPRV2I16RegisterClass);
addRegisterClass(MVT::v4i16, AMDIL::GPRV4I16RegisterClass);
setOperationAction(ISD::Constant , MVT::i16 , Legal);
}
addRegisterClass(MVT::v2f32, AMDIL::GPRV2F32RegisterClass);
addRegisterClass(MVT::v4f32, AMDIL::GPRV4F32RegisterClass);
addRegisterClass(MVT::v2i32, AMDIL::GPRV2I32RegisterClass);
addRegisterClass(MVT::v4i32, AMDIL::GPRV4I32RegisterClass);
if (STM.device()->isSupported(AMDILDeviceInfo::LongOps)) {
addRegisterClass(MVT::i64, AMDIL::GPRI64RegisterClass);
addRegisterClass(MVT::v2i64, AMDIL::GPRV2I64RegisterClass);
}
for (unsigned int x = 0; x < numTypes; ++x) {
MVT::SimpleValueType VT = (MVT::SimpleValueType)types[x];
//FIXME: SIGN_EXTEND_INREG is not meaningful for floating point types
// We cannot sextinreg, expand to shifts
setOperationAction(ISD::SIGN_EXTEND_INREG, VT, Custom);
setOperationAction(ISD::EXTRACT_SUBVECTOR, VT, Custom);
setOperationAction(ISD::FP_ROUND, VT, Expand);
setOperationAction(ISD::SUBE, VT, Expand);
setOperationAction(ISD::SUBC, VT, Expand);
setOperationAction(ISD::ADDE, VT, Expand);
setOperationAction(ISD::ADDC, VT, Expand);
setOperationAction(ISD::SETCC, VT, Custom);
setOperationAction(ISD::BRCOND, VT, Custom);
setOperationAction(ISD::BR_CC, VT, Custom);
setOperationAction(ISD::BR_JT, VT, Expand);
setOperationAction(ISD::BRIND, VT, Expand);
// TODO: Implement custom UREM/SREM routines
setOperationAction(ISD::UREM, VT, Expand);
setOperationAction(ISD::SREM, VT, Expand);
setOperationAction(ISD::UINT_TO_FP, VT, Custom);
setOperationAction(ISD::FP_TO_UINT, VT, Custom);
setOperationAction(ISD::GlobalAddress, VT, Custom);
setOperationAction(ISD::JumpTable, VT, Custom);
setOperationAction(ISD::ConstantPool, VT, Custom);
setOperationAction(ISD::SELECT_CC, VT, Custom);
setOperationAction(ISD::SELECT, VT, Custom);
setOperationAction(ISD::SMUL_LOHI, VT, Expand);
setOperationAction(ISD::UMUL_LOHI, VT, Expand);
if (VT != MVT::i64 && VT != MVT::v2i64) {
setOperationAction(ISD::SDIV, VT, Custom);
}
setOperationAction(ISD::INSERT_VECTOR_ELT, VT, Custom);
setOperationAction(ISD::EXTRACT_VECTOR_ELT, VT, Custom);
}
for (unsigned int x = 0; x < numFloatTypes; ++x) {
MVT::SimpleValueType VT = (MVT::SimpleValueType)FloatTypes[x];
// IL does not have these operations for floating point types
setOperationAction(ISD::FP_ROUND_INREG, VT, Expand);
setOperationAction(ISD::FP_ROUND, VT, Custom);
setOperationAction(ISD::SETOLT, VT, Expand);
setOperationAction(ISD::SETOGE, VT, Expand);
setOperationAction(ISD::SETOGT, VT, Expand);
setOperationAction(ISD::SETOLE, VT, Expand);
setOperationAction(ISD::SETULT, VT, Expand);
setOperationAction(ISD::SETUGE, VT, Expand);
setOperationAction(ISD::SETUGT, VT, Expand);
setOperationAction(ISD::SETULE, VT, Expand);
}
for (unsigned int x = 0; x < numIntTypes; ++x) {
MVT::SimpleValueType VT = (MVT::SimpleValueType)IntTypes[x];
// GPU also does not have divrem function for signed or unsigned
setOperationAction(ISD::SDIVREM, VT, Expand);
setOperationAction(ISD::UDIVREM, VT, Expand);
setOperationAction(ISD::FP_ROUND, VT, Expand);
// GPU does not have [S|U]MUL_LOHI functions as a single instruction
setOperationAction(ISD::SMUL_LOHI, VT, Expand);
setOperationAction(ISD::UMUL_LOHI, VT, Expand);
// GPU doesn't have a rotl, rotr, or byteswap instruction
setOperationAction(ISD::ROTR, VT, Expand);
setOperationAction(ISD::ROTL, VT, Expand);
setOperationAction(ISD::BSWAP, VT, Expand);
// GPU doesn't have any counting operators
setOperationAction(ISD::CTPOP, VT, Expand);
setOperationAction(ISD::CTTZ, VT, Expand);
setOperationAction(ISD::CTLZ, VT, Expand);
}
for ( unsigned int ii = 0; ii < numVectorTypes; ++ii )
{
MVT::SimpleValueType VT = (MVT::SimpleValueType)VectorTypes[ii];
setOperationAction(ISD::BUILD_VECTOR, VT, Custom);
setOperationAction(ISD::EXTRACT_SUBVECTOR, VT, Custom);
setOperationAction(ISD::SCALAR_TO_VECTOR, VT, Custom);
setOperationAction(ISD::VECTOR_SHUFFLE, VT, Expand);
setOperationAction(ISD::CONCAT_VECTORS, VT, Custom);
setOperationAction(ISD::FP_ROUND, VT, Expand);
setOperationAction(ISD::SDIVREM, VT, Expand);
setOperationAction(ISD::UDIVREM, VT, Expand);
setOperationAction(ISD::SMUL_LOHI, VT, Expand);
// setOperationAction(ISD::VSETCC, VT, Expand);
setOperationAction(ISD::SETCC, VT, Expand);
setOperationAction(ISD::SELECT_CC, VT, Expand);
setOperationAction(ISD::SELECT, VT, Expand);
}
setOperationAction(ISD::FP_ROUND, MVT::Other, Expand);
if (STM.device()->isSupported(AMDILDeviceInfo::LongOps)) {
if (STM.calVersion() < CAL_VERSION_SC_139
|| STM.device()->getGeneration() == AMDILDeviceInfo::HD4XXX) {
setOperationAction(ISD::MUL, MVT::i64, Custom);
}
setOperationAction(ISD::SUB, MVT::i64, Custom);
setOperationAction(ISD::ADD, MVT::i64, Custom);
setOperationAction(ISD::MULHU, MVT::i64, Expand);
setOperationAction(ISD::MULHU, MVT::v2i64, Expand);
setOperationAction(ISD::MULHS, MVT::i64, Expand);
setOperationAction(ISD::MULHS, MVT::v2i64, Expand);
setOperationAction(ISD::MUL, MVT::v2i64, Expand);
setOperationAction(ISD::SUB, MVT::v2i64, Expand);
setOperationAction(ISD::ADD, MVT::v2i64, Expand);
setOperationAction(ISD::SREM, MVT::v2i64, Expand);
setOperationAction(ISD::Constant , MVT::i64 , Legal);
setOperationAction(ISD::SDIV, MVT::v2i64, Expand);
setOperationAction(ISD::UINT_TO_FP, MVT::v2i64, Expand);
setOperationAction(ISD::FP_TO_UINT, MVT::v2i64, Expand);
setOperationAction(ISD::TRUNCATE, MVT::v2i64, Expand);
setOperationAction(ISD::SIGN_EXTEND, MVT::v2i64, Expand);
setOperationAction(ISD::ZERO_EXTEND, MVT::v2i64, Expand);
setOperationAction(ISD::ANY_EXTEND, MVT::v2i64, Expand);
}
if (STM.device()->isSupported(AMDILDeviceInfo::DoubleOps)) {
// we support loading/storing v2f64 but not operations on the type
setOperationAction(ISD::FADD, MVT::v2f64, Expand);
setOperationAction(ISD::FSUB, MVT::v2f64, Expand);
setOperationAction(ISD::FMUL, MVT::v2f64, Expand);
setOperationAction(ISD::FP_ROUND, MVT::v2f64, Expand);
setOperationAction(ISD::FP_ROUND_INREG, MVT::v2f64, Expand);
setOperationAction(ISD::FP_EXTEND, MVT::v2f64, Expand);
setOperationAction(ISD::ConstantFP , MVT::f64 , Legal);
setOperationAction(ISD::FDIV, MVT::v2f64, Expand);
// We want to expand vector conversions into their scalar
// counterparts.
setOperationAction(ISD::UINT_TO_FP, MVT::v2f64, Expand);
setOperationAction(ISD::FP_TO_UINT, MVT::v2f64, Expand);
setOperationAction(ISD::TRUNCATE, MVT::v2f64, Expand);
setOperationAction(ISD::SIGN_EXTEND, MVT::v2f64, Expand);
setOperationAction(ISD::ZERO_EXTEND, MVT::v2f64, Expand);
setOperationAction(ISD::ANY_EXTEND, MVT::v2f64, Expand);
setOperationAction(ISD::FABS, MVT::f64, Expand);
setOperationAction(ISD::FABS, MVT::v2f64, Expand);
}
// TODO: Fix the UDIV24 algorithm so it works for these
// types correctly. This needs vector comparisons
// for this to work correctly.
setOperationAction(ISD::UDIV, MVT::v2i8, Expand);
setOperationAction(ISD::UDIV, MVT::v4i8, Expand);
setOperationAction(ISD::UDIV, MVT::v2i16, Expand);
setOperationAction(ISD::UDIV, MVT::v4i16, Expand);
setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1, Custom);
setOperationAction(ISD::SUBC, MVT::Other, Expand);
setOperationAction(ISD::ADDE, MVT::Other, Expand);
setOperationAction(ISD::ADDC, MVT::Other, Expand);
setOperationAction(ISD::BRCOND, MVT::Other, Custom);
setOperationAction(ISD::BR_CC, MVT::Other, Custom);
setOperationAction(ISD::BR_JT, MVT::Other, Expand);
setOperationAction(ISD::BRIND, MVT::Other, Expand);
setOperationAction(ISD::SETCC, MVT::Other, Custom);
setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::Other, Expand);
setOperationAction(ISD::FDIV, MVT::f32, Custom);
setOperationAction(ISD::FDIV, MVT::v2f32, Custom);
setOperationAction(ISD::FDIV, MVT::v4f32, Custom);
setOperationAction(ISD::BUILD_VECTOR, MVT::Other, Custom);
// Use the default implementation.
setOperationAction(ISD::VAARG , MVT::Other, Expand);
setOperationAction(ISD::VACOPY , MVT::Other, Expand);
setOperationAction(ISD::VAEND , MVT::Other, Expand);
setOperationAction(ISD::STACKSAVE , MVT::Other, Expand);
setOperationAction(ISD::STACKRESTORE , MVT::Other, Expand);
setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32 , Custom);
setOperationAction(ISD::ConstantFP , MVT::f32 , Legal);
setOperationAction(ISD::Constant , MVT::i32 , Legal);
setOperationAction(ISD::TRAP , MVT::Other , Legal);
setStackPointerRegisterToSaveRestore(AMDIL::SP);
setSchedulingPreference(Sched::RegPressure);
setPow2DivIsCheap(false);
setPrefLoopAlignment(16);
setSelectIsExpensive(true);
setJumpIsExpensive(true);
maxStoresPerMemcpy = 4096;
maxStoresPerMemmove = 4096;
maxStoresPerMemset = 4096;
#undef numTypes
#undef numIntTypes
#undef numVectorTypes
#undef numFloatTypes
}
const char *
AMDILTargetLowering::getTargetNodeName(unsigned Opcode) const
{
switch (Opcode) {
default: return 0;
case AMDILISD::INTTOANY: return "AMDILISD::INTTOANY";
case AMDILISD::DP_TO_FP: return "AMDILISD::DP_TO_FP";
case AMDILISD::FP_TO_DP: return "AMDILISD::FP_TO_DP";
case AMDILISD::BITCONV: return "AMDILISD::BITCONV";
case AMDILISD::CMOV: return "AMDILISD::CMOV";
case AMDILISD::CMOVLOG: return "AMDILISD::CMOVLOG";
case AMDILISD::INEGATE: return "AMDILISD::INEGATE";
case AMDILISD::MAD: return "AMDILISD::MAD";
case AMDILISD::UMAD: return "AMDILISD::UMAD";
case AMDILISD::CALL: return "AMDILISD::CALL";
case AMDILISD::RET: return "AMDILISD::RET";
case AMDILISD::IFFB_HI: return "AMDILISD::IFFB_HI";
case AMDILISD::IFFB_LO: return "AMDILISD::IFFB_LO";
case AMDILISD::ADD: return "AMDILISD::ADD";
case AMDILISD::UMUL: return "AMDILISD::UMUL";
case AMDILISD::AND: return "AMDILISD::AND";
case AMDILISD::OR: return "AMDILISD::OR";
case AMDILISD::NOT: return "AMDILISD::NOT";
case AMDILISD::XOR: return "AMDILISD::XOR";
case AMDILISD::DIV_INF: return "AMDILISD::DIV_INF";
case AMDILISD::SMAX: return "AMDILISD::SMAX";
case AMDILISD::PHIMOVE: return "AMDILISD::PHIMOVE";
case AMDILISD::MOVE: return "AMDILISD::MOVE";
case AMDILISD::VBUILD: return "AMDILISD::VBUILD";
case AMDILISD::VEXTRACT: return "AMDILISD::VEXTRACT";
case AMDILISD::VINSERT: return "AMDILISD::VINSERT";
case AMDILISD::VCONCAT: return "AMDILISD::VCONCAT";
case AMDILISD::LCREATE: return "AMDILISD::LCREATE";
case AMDILISD::LCOMPHI: return "AMDILISD::LCOMPHI";
case AMDILISD::LCOMPLO: return "AMDILISD::LCOMPLO";
case AMDILISD::DCREATE: return "AMDILISD::DCREATE";
case AMDILISD::DCOMPHI: return "AMDILISD::DCOMPHI";
case AMDILISD::DCOMPLO: return "AMDILISD::DCOMPLO";
case AMDILISD::LCREATE2: return "AMDILISD::LCREATE2";
case AMDILISD::LCOMPHI2: return "AMDILISD::LCOMPHI2";
case AMDILISD::LCOMPLO2: return "AMDILISD::LCOMPLO2";
case AMDILISD::DCREATE2: return "AMDILISD::DCREATE2";
case AMDILISD::DCOMPHI2: return "AMDILISD::DCOMPHI2";
case AMDILISD::DCOMPLO2: return "AMDILISD::DCOMPLO2";
case AMDILISD::CMP: return "AMDILISD::CMP";
case AMDILISD::IL_CC_I_LT: return "AMDILISD::IL_CC_I_LT";
case AMDILISD::IL_CC_I_LE: return "AMDILISD::IL_CC_I_LE";
case AMDILISD::IL_CC_I_GT: return "AMDILISD::IL_CC_I_GT";
case AMDILISD::IL_CC_I_GE: return "AMDILISD::IL_CC_I_GE";
case AMDILISD::IL_CC_I_EQ: return "AMDILISD::IL_CC_I_EQ";
case AMDILISD::IL_CC_I_NE: return "AMDILISD::IL_CC_I_NE";
case AMDILISD::RET_FLAG: return "AMDILISD::RET_FLAG";
case AMDILISD::BRANCH_COND: return "AMDILISD::BRANCH_COND";
case AMDILISD::LOOP_NZERO: return "AMDILISD::LOOP_NZERO";
case AMDILISD::LOOP_ZERO: return "AMDILISD::LOOP_ZERO";
case AMDILISD::LOOP_CMP: return "AMDILISD::LOOP_CMP";
case AMDILISD::ADDADDR: return "AMDILISD::ADDADDR";
case AMDILISD::ATOM_G_ADD: return "AMDILISD::ATOM_G_ADD";
case AMDILISD::ATOM_G_AND: return "AMDILISD::ATOM_G_AND";
case AMDILISD::ATOM_G_CMPXCHG: return "AMDILISD::ATOM_G_CMPXCHG";
case AMDILISD::ATOM_G_DEC: return "AMDILISD::ATOM_G_DEC";
case AMDILISD::ATOM_G_INC: return "AMDILISD::ATOM_G_INC";
case AMDILISD::ATOM_G_MAX: return "AMDILISD::ATOM_G_MAX";
case AMDILISD::ATOM_G_UMAX: return "AMDILISD::ATOM_G_UMAX";
case AMDILISD::ATOM_G_MIN: return "AMDILISD::ATOM_G_MIN";
case AMDILISD::ATOM_G_UMIN: return "AMDILISD::ATOM_G_UMIN";
case AMDILISD::ATOM_G_OR: return "AMDILISD::ATOM_G_OR";
case AMDILISD::ATOM_G_SUB: return "AMDILISD::ATOM_G_SUB";
case AMDILISD::ATOM_G_RSUB: return "AMDILISD::ATOM_G_RSUB";
case AMDILISD::ATOM_G_XCHG: return "AMDILISD::ATOM_G_XCHG";
case AMDILISD::ATOM_G_XOR: return "AMDILISD::ATOM_G_XOR";
case AMDILISD::ATOM_G_ADD_NORET: return "AMDILISD::ATOM_G_ADD_NORET";
case AMDILISD::ATOM_G_AND_NORET: return "AMDILISD::ATOM_G_AND_NORET";
case AMDILISD::ATOM_G_CMPXCHG_NORET: return "AMDILISD::ATOM_G_CMPXCHG_NORET";
case AMDILISD::ATOM_G_DEC_NORET: return "AMDILISD::ATOM_G_DEC_NORET";
case AMDILISD::ATOM_G_INC_NORET: return "AMDILISD::ATOM_G_INC_NORET";
case AMDILISD::ATOM_G_MAX_NORET: return "AMDILISD::ATOM_G_MAX_NORET";
case AMDILISD::ATOM_G_UMAX_NORET: return "AMDILISD::ATOM_G_UMAX_NORET";
case AMDILISD::ATOM_G_MIN_NORET: return "AMDILISD::ATOM_G_MIN_NORET";
case AMDILISD::ATOM_G_UMIN_NORET: return "AMDILISD::ATOM_G_UMIN_NORET";
case AMDILISD::ATOM_G_OR_NORET: return "AMDILISD::ATOM_G_OR_NORET";
case AMDILISD::ATOM_G_SUB_NORET: return "AMDILISD::ATOM_G_SUB_NORET";
case AMDILISD::ATOM_G_RSUB_NORET: return "AMDILISD::ATOM_G_RSUB_NORET";
case AMDILISD::ATOM_G_XCHG_NORET: return "AMDILISD::ATOM_G_XCHG_NORET";
case AMDILISD::ATOM_G_XOR_NORET: return "AMDILISD::ATOM_G_XOR_NORET";
case AMDILISD::ATOM_L_ADD: return "AMDILISD::ATOM_L_ADD";
case AMDILISD::ATOM_L_AND: return "AMDILISD::ATOM_L_AND";
case AMDILISD::ATOM_L_CMPXCHG: return "AMDILISD::ATOM_L_CMPXCHG";
case AMDILISD::ATOM_L_DEC: return "AMDILISD::ATOM_L_DEC";
case AMDILISD::ATOM_L_INC: return "AMDILISD::ATOM_L_INC";
case AMDILISD::ATOM_L_MAX: return "AMDILISD::ATOM_L_MAX";
case AMDILISD::ATOM_L_UMAX: return "AMDILISD::ATOM_L_UMAX";
case AMDILISD::ATOM_L_MIN: return "AMDILISD::ATOM_L_MIN";
case AMDILISD::ATOM_L_UMIN: return "AMDILISD::ATOM_L_UMIN";
case AMDILISD::ATOM_L_OR: return "AMDILISD::ATOM_L_OR";
case AMDILISD::ATOM_L_SUB: return "AMDILISD::ATOM_L_SUB";
case AMDILISD::ATOM_L_RSUB: return "AMDILISD::ATOM_L_RSUB";
case AMDILISD::ATOM_L_XCHG: return "AMDILISD::ATOM_L_XCHG";
case AMDILISD::ATOM_L_XOR: return "AMDILISD::ATOM_L_XOR";
case AMDILISD::ATOM_L_ADD_NORET: return "AMDILISD::ATOM_L_ADD_NORET";
case AMDILISD::ATOM_L_AND_NORET: return "AMDILISD::ATOM_L_AND_NORET";
case AMDILISD::ATOM_L_CMPXCHG_NORET: return "AMDILISD::ATOM_L_CMPXCHG_NORET";
case AMDILISD::ATOM_L_DEC_NORET: return "AMDILISD::ATOM_L_DEC_NORET";
case AMDILISD::ATOM_L_INC_NORET: return "AMDILISD::ATOM_L_INC_NORET";
case AMDILISD::ATOM_L_MAX_NORET: return "AMDILISD::ATOM_L_MAX_NORET";
case AMDILISD::ATOM_L_UMAX_NORET: return "AMDILISD::ATOM_L_UMAX_NORET";
case AMDILISD::ATOM_L_MIN_NORET: return "AMDILISD::ATOM_L_MIN_NORET";
case AMDILISD::ATOM_L_UMIN_NORET: return "AMDILISD::ATOM_L_UMIN_NORET";
case AMDILISD::ATOM_L_OR_NORET: return "AMDILISD::ATOM_L_OR_NORET";
case AMDILISD::ATOM_L_SUB_NORET: return "AMDILISD::ATOM_L_SUB_NORET";
case AMDILISD::ATOM_L_RSUB_NORET: return "AMDILISD::ATOM_L_RSUB_NORET";
case AMDILISD::ATOM_L_XCHG_NORET: return "AMDILISD::ATOM_L_XCHG_NORET";
case AMDILISD::ATOM_R_ADD: return "AMDILISD::ATOM_R_ADD";
case AMDILISD::ATOM_R_AND: return "AMDILISD::ATOM_R_AND";
case AMDILISD::ATOM_R_CMPXCHG: return "AMDILISD::ATOM_R_CMPXCHG";
case AMDILISD::ATOM_R_DEC: return "AMDILISD::ATOM_R_DEC";
case AMDILISD::ATOM_R_INC: return "AMDILISD::ATOM_R_INC";
case AMDILISD::ATOM_R_MAX: return "AMDILISD::ATOM_R_MAX";
case AMDILISD::ATOM_R_UMAX: return "AMDILISD::ATOM_R_UMAX";
case AMDILISD::ATOM_R_MIN: return "AMDILISD::ATOM_R_MIN";
case AMDILISD::ATOM_R_UMIN: return "AMDILISD::ATOM_R_UMIN";
case AMDILISD::ATOM_R_OR: return "AMDILISD::ATOM_R_OR";
case AMDILISD::ATOM_R_MSKOR: return "AMDILISD::ATOM_R_MSKOR";
case AMDILISD::ATOM_R_SUB: return "AMDILISD::ATOM_R_SUB";
case AMDILISD::ATOM_R_RSUB: return "AMDILISD::ATOM_R_RSUB";
case AMDILISD::ATOM_R_XCHG: return "AMDILISD::ATOM_R_XCHG";
case AMDILISD::ATOM_R_XOR: return "AMDILISD::ATOM_R_XOR";
case AMDILISD::ATOM_R_ADD_NORET: return "AMDILISD::ATOM_R_ADD_NORET";
case AMDILISD::ATOM_R_AND_NORET: return "AMDILISD::ATOM_R_AND_NORET";
case AMDILISD::ATOM_R_CMPXCHG_NORET: return "AMDILISD::ATOM_R_CMPXCHG_NORET";
case AMDILISD::ATOM_R_DEC_NORET: return "AMDILISD::ATOM_R_DEC_NORET";
case AMDILISD::ATOM_R_INC_NORET: return "AMDILISD::ATOM_R_INC_NORET";
case AMDILISD::ATOM_R_MAX_NORET: return "AMDILISD::ATOM_R_MAX_NORET";
case AMDILISD::ATOM_R_UMAX_NORET: return "AMDILISD::ATOM_R_UMAX_NORET";
case AMDILISD::ATOM_R_MIN_NORET: return "AMDILISD::ATOM_R_MIN_NORET";
case AMDILISD::ATOM_R_UMIN_NORET: return "AMDILISD::ATOM_R_UMIN_NORET";
case AMDILISD::ATOM_R_OR_NORET: return "AMDILISD::ATOM_R_OR_NORET";
case AMDILISD::ATOM_R_MSKOR_NORET: return "AMDILISD::ATOM_R_MSKOR_NORET";
case AMDILISD::ATOM_R_SUB_NORET: return "AMDILISD::ATOM_R_SUB_NORET";
case AMDILISD::ATOM_R_RSUB_NORET: return "AMDILISD::ATOM_R_RSUB_NORET";
case AMDILISD::ATOM_R_XCHG_NORET: return "AMDILISD::ATOM_R_XCHG_NORET";
case AMDILISD::ATOM_R_XOR_NORET: return "AMDILISD::ATOM_R_XOR_NORET";
case AMDILISD::APPEND_ALLOC: return "AMDILISD::APPEND_ALLOC";
case AMDILISD::APPEND_ALLOC_NORET: return "AMDILISD::APPEND_ALLOC_NORET";
case AMDILISD::APPEND_CONSUME: return "AMDILISD::APPEND_CONSUME";
case AMDILISD::APPEND_CONSUME_NORET: return "AMDILISD::APPEND_CONSUME_NORET";
case AMDILISD::IMAGE2D_READ: return "AMDILISD::IMAGE2D_READ";
case AMDILISD::IMAGE2D_WRITE: return "AMDILISD::IMAGE2D_WRITE";
case AMDILISD::IMAGE2D_INFO0: return "AMDILISD::IMAGE2D_INFO0";
case AMDILISD::IMAGE2D_INFO1: return "AMDILISD::IMAGE2D_INFO1";
case AMDILISD::IMAGE3D_READ: return "AMDILISD::IMAGE3D_READ";
case AMDILISD::IMAGE3D_WRITE: return "AMDILISD::IMAGE3D_WRITE";
case AMDILISD::IMAGE3D_INFO0: return "AMDILISD::IMAGE3D_INFO0";
case AMDILISD::IMAGE3D_INFO1: return "AMDILISD::IMAGE3D_INFO1";
};
}
bool
AMDILTargetLowering::getTgtMemIntrinsic(IntrinsicInfo &Info,
const CallInst &I, unsigned Intrinsic) const
{
if (Intrinsic <= AMDGPUIntrinsic::last_non_AMDIL_intrinsic
|| Intrinsic > AMDGPUIntrinsic::num_AMDIL_intrinsics) {
return false;
}
bool bitCastToInt = false;
unsigned IntNo;
bool isRet = true;
const AMDILSubtarget *STM = &this->getTargetMachine()
.getSubtarget<AMDILSubtarget>();
switch (Intrinsic) {
default: return false; // Don't custom lower most intrinsics.
case AMDGPUIntrinsic::AMDIL_atomic_add_gi32:
case AMDGPUIntrinsic::AMDIL_atomic_add_gu32:
IntNo = AMDILISD::ATOM_G_ADD; break;
case AMDGPUIntrinsic::AMDIL_atomic_add_gi32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_add_gu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_G_ADD_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_add_lu32:
case AMDGPUIntrinsic::AMDIL_atomic_add_li32:
IntNo = AMDILISD::ATOM_L_ADD; break;
case AMDGPUIntrinsic::AMDIL_atomic_add_li32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_add_lu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_L_ADD_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_add_ru32:
case AMDGPUIntrinsic::AMDIL_atomic_add_ri32:
IntNo = AMDILISD::ATOM_R_ADD; break;
case AMDGPUIntrinsic::AMDIL_atomic_add_ri32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_add_ru32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_R_ADD_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_and_gi32:
case AMDGPUIntrinsic::AMDIL_atomic_and_gu32:
IntNo = AMDILISD::ATOM_G_AND; break;
case AMDGPUIntrinsic::AMDIL_atomic_and_gi32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_and_gu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_G_AND_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_and_li32:
case AMDGPUIntrinsic::AMDIL_atomic_and_lu32:
IntNo = AMDILISD::ATOM_L_AND; break;
case AMDGPUIntrinsic::AMDIL_atomic_and_li32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_and_lu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_L_AND_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_and_ri32:
case AMDGPUIntrinsic::AMDIL_atomic_and_ru32:
IntNo = AMDILISD::ATOM_R_AND; break;
case AMDGPUIntrinsic::AMDIL_atomic_and_ri32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_and_ru32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_R_AND_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_cmpxchg_gi32:
case AMDGPUIntrinsic::AMDIL_atomic_cmpxchg_gu32:
IntNo = AMDILISD::ATOM_G_CMPXCHG; break;
case AMDGPUIntrinsic::AMDIL_atomic_cmpxchg_gi32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_cmpxchg_gu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_G_CMPXCHG_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_cmpxchg_li32:
case AMDGPUIntrinsic::AMDIL_atomic_cmpxchg_lu32:
IntNo = AMDILISD::ATOM_L_CMPXCHG; break;
case AMDGPUIntrinsic::AMDIL_atomic_cmpxchg_li32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_cmpxchg_lu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_L_CMPXCHG_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_cmpxchg_ri32:
case AMDGPUIntrinsic::AMDIL_atomic_cmpxchg_ru32:
IntNo = AMDILISD::ATOM_R_CMPXCHG; break;
case AMDGPUIntrinsic::AMDIL_atomic_cmpxchg_ri32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_cmpxchg_ru32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_R_CMPXCHG_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_dec_gi32:
case AMDGPUIntrinsic::AMDIL_atomic_dec_gu32:
if (STM->calVersion() >= CAL_VERSION_SC_136) {
IntNo = AMDILISD::ATOM_G_DEC;
} else {
IntNo = AMDILISD::ATOM_G_SUB;
}
break;
case AMDGPUIntrinsic::AMDIL_atomic_dec_gi32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_dec_gu32_noret:
isRet = false;
if (STM->calVersion() >= CAL_VERSION_SC_136) {
IntNo = AMDILISD::ATOM_G_DEC_NORET;
} else {
IntNo = AMDILISD::ATOM_G_SUB_NORET;
}
break;
case AMDGPUIntrinsic::AMDIL_atomic_dec_li32:
case AMDGPUIntrinsic::AMDIL_atomic_dec_lu32:
if (STM->calVersion() >= CAL_VERSION_SC_136) {
IntNo = AMDILISD::ATOM_L_DEC;
} else {
IntNo = AMDILISD::ATOM_L_SUB;
}
break;
case AMDGPUIntrinsic::AMDIL_atomic_dec_li32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_dec_lu32_noret:
isRet = false;
if (STM->calVersion() >= CAL_VERSION_SC_136) {
IntNo = AMDILISD::ATOM_L_DEC_NORET;
} else {
IntNo = AMDILISD::ATOM_L_SUB_NORET;
}
break;
case AMDGPUIntrinsic::AMDIL_atomic_dec_ri32:
case AMDGPUIntrinsic::AMDIL_atomic_dec_ru32:
if (STM->calVersion() >= CAL_VERSION_SC_136) {
IntNo = AMDILISD::ATOM_R_DEC;
} else {
IntNo = AMDILISD::ATOM_R_SUB;
}
break;
case AMDGPUIntrinsic::AMDIL_atomic_dec_ri32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_dec_ru32_noret:
isRet = false;
if (STM->calVersion() >= CAL_VERSION_SC_136) {
IntNo = AMDILISD::ATOM_R_DEC_NORET;
} else {
IntNo = AMDILISD::ATOM_R_SUB_NORET;
}
break;
case AMDGPUIntrinsic::AMDIL_atomic_inc_gi32:
case AMDGPUIntrinsic::AMDIL_atomic_inc_gu32:
if (STM->calVersion() >= CAL_VERSION_SC_136) {
IntNo = AMDILISD::ATOM_G_INC;
} else {
IntNo = AMDILISD::ATOM_G_ADD;
}
break;
case AMDGPUIntrinsic::AMDIL_atomic_inc_gi32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_inc_gu32_noret:
isRet = false;
if (STM->calVersion() >= CAL_VERSION_SC_136) {
IntNo = AMDILISD::ATOM_G_INC_NORET;
} else {
IntNo = AMDILISD::ATOM_G_ADD_NORET;
}
break;
case AMDGPUIntrinsic::AMDIL_atomic_inc_li32:
case AMDGPUIntrinsic::AMDIL_atomic_inc_lu32:
if (STM->calVersion() >= CAL_VERSION_SC_136) {
IntNo = AMDILISD::ATOM_L_INC;
} else {
IntNo = AMDILISD::ATOM_L_ADD;
}
break;
case AMDGPUIntrinsic::AMDIL_atomic_inc_li32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_inc_lu32_noret:
isRet = false;
if (STM->calVersion() >= CAL_VERSION_SC_136) {
IntNo = AMDILISD::ATOM_L_INC_NORET;
} else {
IntNo = AMDILISD::ATOM_L_ADD_NORET;
}
break;
case AMDGPUIntrinsic::AMDIL_atomic_inc_ri32:
case AMDGPUIntrinsic::AMDIL_atomic_inc_ru32:
if (STM->calVersion() >= CAL_VERSION_SC_136) {
IntNo = AMDILISD::ATOM_R_INC;
} else {
IntNo = AMDILISD::ATOM_R_ADD;
}
break;
case AMDGPUIntrinsic::AMDIL_atomic_inc_ri32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_inc_ru32_noret:
isRet = false;
if (STM->calVersion() >= CAL_VERSION_SC_136) {
IntNo = AMDILISD::ATOM_R_INC_NORET;
} else {
IntNo = AMDILISD::ATOM_R_ADD_NORET;
}
break;
case AMDGPUIntrinsic::AMDIL_atomic_max_gi32:
IntNo = AMDILISD::ATOM_G_MAX; break;
case AMDGPUIntrinsic::AMDIL_atomic_max_gu32:
IntNo = AMDILISD::ATOM_G_UMAX; break;
case AMDGPUIntrinsic::AMDIL_atomic_max_gi32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_G_MAX_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_max_gu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_G_UMAX_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_max_li32:
IntNo = AMDILISD::ATOM_L_MAX; break;
case AMDGPUIntrinsic::AMDIL_atomic_max_lu32:
IntNo = AMDILISD::ATOM_L_UMAX; break;
case AMDGPUIntrinsic::AMDIL_atomic_max_li32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_L_MAX_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_max_lu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_L_UMAX_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_max_ri32:
IntNo = AMDILISD::ATOM_R_MAX; break;
case AMDGPUIntrinsic::AMDIL_atomic_max_ru32:
IntNo = AMDILISD::ATOM_R_UMAX; break;
case AMDGPUIntrinsic::AMDIL_atomic_max_ri32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_R_MAX_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_max_ru32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_R_UMAX_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_min_gi32:
IntNo = AMDILISD::ATOM_G_MIN; break;
case AMDGPUIntrinsic::AMDIL_atomic_min_gu32:
IntNo = AMDILISD::ATOM_G_UMIN; break;
case AMDGPUIntrinsic::AMDIL_atomic_min_gi32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_G_MIN_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_min_gu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_G_UMIN_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_min_li32:
IntNo = AMDILISD::ATOM_L_MIN; break;
case AMDGPUIntrinsic::AMDIL_atomic_min_lu32:
IntNo = AMDILISD::ATOM_L_UMIN; break;
case AMDGPUIntrinsic::AMDIL_atomic_min_li32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_L_MIN_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_min_lu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_L_UMIN_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_min_ri32:
IntNo = AMDILISD::ATOM_R_MIN; break;
case AMDGPUIntrinsic::AMDIL_atomic_min_ru32:
IntNo = AMDILISD::ATOM_R_UMIN; break;
case AMDGPUIntrinsic::AMDIL_atomic_min_ri32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_R_MIN_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_min_ru32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_R_UMIN_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_or_gi32:
case AMDGPUIntrinsic::AMDIL_atomic_or_gu32:
IntNo = AMDILISD::ATOM_G_OR; break;
case AMDGPUIntrinsic::AMDIL_atomic_or_gi32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_or_gu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_G_OR_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_or_li32:
case AMDGPUIntrinsic::AMDIL_atomic_or_lu32:
IntNo = AMDILISD::ATOM_L_OR; break;
case AMDGPUIntrinsic::AMDIL_atomic_or_li32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_or_lu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_L_OR_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_or_ri32:
case AMDGPUIntrinsic::AMDIL_atomic_or_ru32:
IntNo = AMDILISD::ATOM_R_OR; break;
case AMDGPUIntrinsic::AMDIL_atomic_or_ri32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_or_ru32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_R_OR_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_sub_gi32:
case AMDGPUIntrinsic::AMDIL_atomic_sub_gu32:
IntNo = AMDILISD::ATOM_G_SUB; break;
case AMDGPUIntrinsic::AMDIL_atomic_sub_gi32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_sub_gu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_G_SUB_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_sub_li32:
case AMDGPUIntrinsic::AMDIL_atomic_sub_lu32:
IntNo = AMDILISD::ATOM_L_SUB; break;
case AMDGPUIntrinsic::AMDIL_atomic_sub_li32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_sub_lu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_L_SUB_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_sub_ri32:
case AMDGPUIntrinsic::AMDIL_atomic_sub_ru32:
IntNo = AMDILISD::ATOM_R_SUB; break;
case AMDGPUIntrinsic::AMDIL_atomic_sub_ri32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_sub_ru32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_R_SUB_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_rsub_gi32:
case AMDGPUIntrinsic::AMDIL_atomic_rsub_gu32:
IntNo = AMDILISD::ATOM_G_RSUB; break;
case AMDGPUIntrinsic::AMDIL_atomic_rsub_gi32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_rsub_gu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_G_RSUB_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_rsub_li32:
case AMDGPUIntrinsic::AMDIL_atomic_rsub_lu32:
IntNo = AMDILISD::ATOM_L_RSUB; break;
case AMDGPUIntrinsic::AMDIL_atomic_rsub_li32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_rsub_lu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_L_RSUB_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_rsub_ri32:
case AMDGPUIntrinsic::AMDIL_atomic_rsub_ru32:
IntNo = AMDILISD::ATOM_R_RSUB; break;
case AMDGPUIntrinsic::AMDIL_atomic_rsub_ri32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_rsub_ru32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_R_RSUB_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_xchg_gf32:
bitCastToInt = true;
case AMDGPUIntrinsic::AMDIL_atomic_xchg_gi32:
case AMDGPUIntrinsic::AMDIL_atomic_xchg_gu32:
IntNo = AMDILISD::ATOM_G_XCHG; break;
case AMDGPUIntrinsic::AMDIL_atomic_xchg_gf32_noret:
bitCastToInt = true;
case AMDGPUIntrinsic::AMDIL_atomic_xchg_gi32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_xchg_gu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_G_XCHG_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_xchg_lf32:
bitCastToInt = true;
case AMDGPUIntrinsic::AMDIL_atomic_xchg_li32:
case AMDGPUIntrinsic::AMDIL_atomic_xchg_lu32:
IntNo = AMDILISD::ATOM_L_XCHG; break;
case AMDGPUIntrinsic::AMDIL_atomic_xchg_lf32_noret:
bitCastToInt = true;
case AMDGPUIntrinsic::AMDIL_atomic_xchg_li32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_xchg_lu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_L_XCHG_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_xchg_rf32:
bitCastToInt = true;
case AMDGPUIntrinsic::AMDIL_atomic_xchg_ri32:
case AMDGPUIntrinsic::AMDIL_atomic_xchg_ru32:
IntNo = AMDILISD::ATOM_R_XCHG; break;
case AMDGPUIntrinsic::AMDIL_atomic_xchg_rf32_noret:
bitCastToInt = true;
case AMDGPUIntrinsic::AMDIL_atomic_xchg_ri32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_xchg_ru32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_R_XCHG_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_xor_gi32:
case AMDGPUIntrinsic::AMDIL_atomic_xor_gu32:
IntNo = AMDILISD::ATOM_G_XOR; break;
case AMDGPUIntrinsic::AMDIL_atomic_xor_gi32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_xor_gu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_G_XOR_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_xor_li32:
case AMDGPUIntrinsic::AMDIL_atomic_xor_lu32:
IntNo = AMDILISD::ATOM_L_XOR; break;
case AMDGPUIntrinsic::AMDIL_atomic_xor_li32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_xor_lu32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_L_XOR_NORET; break;
case AMDGPUIntrinsic::AMDIL_atomic_xor_ri32:
case AMDGPUIntrinsic::AMDIL_atomic_xor_ru32:
IntNo = AMDILISD::ATOM_R_XOR; break;
case AMDGPUIntrinsic::AMDIL_atomic_xor_ri32_noret:
case AMDGPUIntrinsic::AMDIL_atomic_xor_ru32_noret:
isRet = false;
IntNo = AMDILISD::ATOM_R_XOR_NORET; break;
case AMDGPUIntrinsic::AMDIL_append_alloc_i32:
IntNo = AMDILISD::APPEND_ALLOC; break;
case AMDGPUIntrinsic::AMDIL_append_alloc_i32_noret:
isRet = false;
IntNo = AMDILISD::APPEND_ALLOC_NORET; break;
case AMDGPUIntrinsic::AMDIL_append_consume_i32:
IntNo = AMDILISD::APPEND_CONSUME; break;
case AMDGPUIntrinsic::AMDIL_append_consume_i32_noret:
isRet = false;
IntNo = AMDILISD::APPEND_CONSUME_NORET; break;
};
Info.opc = IntNo;
Info.memVT = (bitCastToInt) ? MVT::f32 : MVT::i32;
Info.ptrVal = I.getOperand(0);
Info.offset = 0;
Info.align = 4;
Info.vol = true;
Info.readMem = isRet;
Info.writeMem = true;
return true;
}
// The backend supports 32 and 64 bit floating point immediates
bool
AMDILTargetLowering::isFPImmLegal(const APFloat &Imm, EVT VT) const
{
if (VT.getScalarType().getSimpleVT().SimpleTy == MVT::f32
|| VT.getScalarType().getSimpleVT().SimpleTy == MVT::f64) {
return true;
} else {
return false;
}
}
bool
AMDILTargetLowering::ShouldShrinkFPConstant(EVT VT) const
{
if (VT.getScalarType().getSimpleVT().SimpleTy == MVT::f32
|| VT.getScalarType().getSimpleVT().SimpleTy == MVT::f64) {
return false;
} else {
return true;
}
}
// isMaskedValueZeroForTargetNode - Return true if 'Op & Mask' is known to
// be zero. Op is expected to be a target specific node. Used by DAG
// combiner.
void
AMDILTargetLowering::computeMaskedBitsForTargetNode(
const SDValue Op,
APInt &KnownZero,
APInt &KnownOne,
const SelectionDAG &DAG,
unsigned Depth) const
{
APInt KnownZero2;
APInt KnownOne2;
KnownZero = KnownOne = APInt(KnownOne.getBitWidth(), 0); // Don't know anything
switch (Op.getOpcode()) {
default: break;
case AMDILISD::SELECT_CC:
DAG.ComputeMaskedBits(
Op.getOperand(1),
KnownZero,
KnownOne,
Depth + 1
);
DAG.ComputeMaskedBits(
Op.getOperand(0),
KnownZero2,
KnownOne2
);
assert((KnownZero & KnownOne) == 0
&& "Bits known to be one AND zero?");
assert((KnownZero2 & KnownOne2) == 0
&& "Bits known to be one AND zero?");
// Only known if known in both the LHS and RHS
KnownOne &= KnownOne2;
KnownZero &= KnownZero2;
break;
};
}
// This is the function that determines which calling convention should
// be used. Currently there is only one calling convention
CCAssignFn*
AMDILTargetLowering::CCAssignFnForNode(unsigned int Op) const
{
//uint64_t CC = cast<ConstantSDNode>(Op.getOperand(1))->getZExtValue();
return CC_AMDIL32;
}
// LowerCallResult - Lower the result values of an ISD::CALL into the
// appropriate copies out of appropriate physical registers. This assumes that
// Chain/InFlag are the input chain/flag to use, and that TheCall is the call
// being lowered. The returns a SDNode with the same number of values as the
// ISD::CALL.
SDValue
AMDILTargetLowering::LowerCallResult(
SDValue Chain,
SDValue InFlag,
CallingConv::ID CallConv,
bool isVarArg,
const SmallVectorImpl<ISD::InputArg> &Ins,
DebugLoc dl,
SelectionDAG &DAG,
SmallVectorImpl<SDValue> &InVals) const
{
// Assign locations to each value returned by this call
SmallVector<CCValAssign, 16> RVLocs;
CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(),
getTargetMachine(), RVLocs, *DAG.getContext());
CCInfo.AnalyzeCallResult(Ins, RetCC_AMDIL32);
// Copy all of the result registers out of their specified physreg.
for (unsigned i = 0; i != RVLocs.size(); ++i) {
EVT CopyVT = RVLocs[i].getValVT();
if (RVLocs[i].isRegLoc()) {
Chain = DAG.getCopyFromReg(
Chain,
dl,
RVLocs[i].getLocReg(),
CopyVT,
InFlag
).getValue(1);
SDValue Val = Chain.getValue(0);
InFlag = Chain.getValue(2);
InVals.push_back(Val);
}
}
return Chain;
}
//===----------------------------------------------------------------------===//
// Other Lowering Hooks
//===----------------------------------------------------------------------===//
// Recursively assign SDNodeOrdering to any unordered nodes
// This is necessary to maintain source ordering of instructions
// under -O0 to avoid odd-looking "skipping around" issues.
static const SDValue
Ordered( SelectionDAG &DAG, unsigned order, const SDValue New )
{
if (order != 0 && DAG.GetOrdering( New.getNode() ) == 0) {
DAG.AssignOrdering( New.getNode(), order );
for (unsigned i = 0, e = New.getNumOperands(); i < e; ++i)
Ordered( DAG, order, New.getOperand(i) );
}
return New;
}
#define LOWER(A) \
case ISD:: A: \
return Ordered( DAG, DAG.GetOrdering( Op.getNode() ), Lower##A(Op, DAG) )
SDValue
AMDILTargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const
{
switch (Op.getOpcode()) {
default:
Op.getNode()->dump();
assert(0 && "Custom lowering code for this"
"instruction is not implemented yet!");
break;
LOWER(GlobalAddress);
LOWER(JumpTable);
LOWER(ConstantPool);
LOWER(ExternalSymbol);
LOWER(FP_TO_UINT);
LOWER(UINT_TO_FP);
LOWER(MUL);
LOWER(SUB);
LOWER(FDIV);
LOWER(SDIV);
LOWER(SREM);
LOWER(UREM);
LOWER(BUILD_VECTOR);
LOWER(INSERT_VECTOR_ELT);
LOWER(EXTRACT_VECTOR_ELT);
LOWER(EXTRACT_SUBVECTOR);
LOWER(SCALAR_TO_VECTOR);
LOWER(CONCAT_VECTORS);
LOWER(SELECT);
LOWER(SETCC);
LOWER(SIGN_EXTEND_INREG);
LOWER(DYNAMIC_STACKALLOC);
LOWER(BRCOND);
LOWER(BR_CC);
LOWER(FP_ROUND);
}
return Op;
}
int
AMDILTargetLowering::getVarArgsFrameOffset() const
{
return VarArgsFrameOffset;
}
#undef LOWER
SDValue
AMDILTargetLowering::LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const
{
SDValue DST = Op;
const GlobalAddressSDNode *GADN = cast<GlobalAddressSDNode>(Op);
const GlobalValue *G = GADN->getGlobal();
DebugLoc DL = Op.getDebugLoc();
const GlobalVariable *GV = dyn_cast<GlobalVariable>(G);
if (!GV) {
DST = DAG.getTargetGlobalAddress(GV, DL, MVT::i32);
} else {
if (GV->hasInitializer()) {
const Constant *C = dyn_cast<Constant>(GV->getInitializer());
if (const ConstantInt *CI = dyn_cast<ConstantInt>(C)) {
DST = DAG.getConstant(CI->getValue(), Op.getValueType());
} else if (const ConstantFP *CF = dyn_cast<ConstantFP>(C)) {
DST = DAG.getConstantFP(CF->getValueAPF(),
Op.getValueType());
} else if (dyn_cast<ConstantAggregateZero>(C)) {
EVT VT = Op.getValueType();
if (VT.isInteger()) {
DST = DAG.getConstant(0, VT);
} else {
DST = DAG.getConstantFP(0, VT);
}
} else {
assert(!"lowering this type of Global Address "
"not implemented yet!");
C->dump();
DST = DAG.getTargetGlobalAddress(GV, DL, MVT::i32);
}
} else {
DST = DAG.getTargetGlobalAddress(GV, DL, MVT::i32);
}
}
return DST;
}
SDValue
AMDILTargetLowering::LowerJumpTable(SDValue Op, SelectionDAG &DAG) const
{
JumpTableSDNode *JT = cast<JumpTableSDNode>(Op);
SDValue Result = DAG.getTargetJumpTable(JT->getIndex(), MVT::i32);
return Result;
}
SDValue
AMDILTargetLowering::LowerConstantPool(SDValue Op, SelectionDAG &DAG) const
{
ConstantPoolSDNode *CP = cast<ConstantPoolSDNode>(Op);
EVT PtrVT = Op.getValueType();
SDValue Result;
if (CP->isMachineConstantPoolEntry()) {
Result = DAG.getTargetConstantPool(CP->getMachineCPVal(), PtrVT,
CP->getAlignment(), CP->getOffset(), CP->getTargetFlags());
} else {
Result = DAG.getTargetConstantPool(CP->getConstVal(), PtrVT,
CP->getAlignment(), CP->getOffset(), CP->getTargetFlags());
}
return Result;
}
SDValue
AMDILTargetLowering::LowerExternalSymbol(SDValue Op, SelectionDAG &DAG) const
{
const char *Sym = cast<ExternalSymbolSDNode>(Op)->getSymbol();
SDValue Result = DAG.getTargetExternalSymbol(Sym, MVT::i32);
return Result;
}
/// LowerFORMAL_ARGUMENTS - transform physical registers into
/// virtual registers and generate load operations for
/// arguments places on the stack.
/// TODO: isVarArg, hasStructRet, isMemReg
SDValue
AMDILTargetLowering::LowerFormalArguments(SDValue Chain,
CallingConv::ID CallConv,
bool isVarArg,
const SmallVectorImpl<ISD::InputArg> &Ins,
DebugLoc dl,
SelectionDAG &DAG,
SmallVectorImpl<SDValue> &InVals)
const
{
MachineFunction &MF = DAG.getMachineFunction();
MachineFrameInfo *MFI = MF.getFrameInfo();
//const Function *Fn = MF.getFunction();
//MachineRegisterInfo &RegInfo = MF.getRegInfo();
SmallVector<CCValAssign, 16> ArgLocs;
CallingConv::ID CC = MF.getFunction()->getCallingConv();
//bool hasStructRet = MF.getFunction()->hasStructRetAttr();
CCState CCInfo(CC, isVarArg, DAG.getMachineFunction(),
getTargetMachine(), ArgLocs, *DAG.getContext());
// When more calling conventions are added, they need to be chosen here
CCInfo.AnalyzeFormalArguments(Ins, CC_AMDIL32);
SDValue StackPtr;
//unsigned int FirstStackArgLoc = 0;
for (unsigned int i = 0, e = ArgLocs.size(); i != e; ++i) {
CCValAssign &VA = ArgLocs[i];
if (VA.isRegLoc()) {
EVT RegVT = VA.getLocVT();
const TargetRegisterClass *RC = getRegClassFromType(
RegVT.getSimpleVT().SimpleTy);
unsigned int Reg = MF.addLiveIn(VA.getLocReg(), RC);
SDValue ArgValue = DAG.getCopyFromReg(
Chain,
dl,
Reg,
RegVT);
// If this is an 8 or 16-bit value, it is really passed
// promoted to 32 bits. Insert an assert[sz]ext to capture
// this, then truncate to the right size.
if (VA.getLocInfo() == CCValAssign::SExt) {
ArgValue = DAG.getNode(
ISD::AssertSext,
dl,
RegVT,
ArgValue,
DAG.getValueType(VA.getValVT()));
} else if (VA.getLocInfo() == CCValAssign::ZExt) {
ArgValue = DAG.getNode(
ISD::AssertZext,
dl,
RegVT,
ArgValue,
DAG.getValueType(VA.getValVT()));
}
if (VA.getLocInfo() != CCValAssign::Full) {
ArgValue = DAG.getNode(
ISD::TRUNCATE,
dl,
VA.getValVT(),
ArgValue);
}
// Add the value to the list of arguments
// to be passed in registers
InVals.push_back(ArgValue);
if (isVarArg) {
assert(0 && "Variable arguments are not yet supported");
// See MipsISelLowering.cpp for ideas on how to implement
}
} else if(VA.isMemLoc()) {
InVals.push_back(LowerMemArgument(Chain, CallConv, Ins,
dl, DAG, VA, MFI, i));
} else {
assert(0 && "found a Value Assign that is "
"neither a register or a memory location");
}
}
/*if (hasStructRet) {
assert(0 && "Has struct return is not yet implemented");
// See MipsISelLowering.cpp for ideas on how to implement
}*/
if (isVarArg) {
assert(0 && "Variable arguments are not yet supported");
// See X86/PPC/CellSPU ISelLowering.cpp for ideas on how to implement
}
// This needs to be changed to non-zero if the return function needs
// to pop bytes
return Chain;
}
/// CreateCopyOfByValArgument - Make a copy of an aggregate at address specified
/// by "Src" to address "Dst" with size and alignment information specified by
/// the specific parameter attribute. The copy will be passed as a byval
/// function parameter.
static SDValue
CreateCopyOfByValArgument(SDValue Src, SDValue Dst, SDValue Chain,
ISD::ArgFlagsTy Flags, SelectionDAG &DAG) {
assert(0 && "MemCopy does not exist yet");
SDValue SizeNode = DAG.getConstant(Flags.getByValSize(), MVT::i32);
return DAG.getMemcpy(Chain,
Src.getDebugLoc(),
Dst, Src, SizeNode, Flags.getByValAlign(),
/*IsVol=*/false, /*AlwaysInline=*/true,
MachinePointerInfo(), MachinePointerInfo());
}
SDValue
AMDILTargetLowering::LowerMemOpCallTo(SDValue Chain,
SDValue StackPtr, SDValue Arg,
DebugLoc dl, SelectionDAG &DAG,
const CCValAssign &VA,
ISD::ArgFlagsTy Flags) const
{
unsigned int LocMemOffset = VA.getLocMemOffset();
SDValue PtrOff = DAG.getIntPtrConstant(LocMemOffset);
PtrOff = DAG.getNode(ISD::ADD,
dl,
getPointerTy(), StackPtr, PtrOff);
if (Flags.isByVal()) {
PtrOff = CreateCopyOfByValArgument(Arg, PtrOff, Chain, Flags, DAG);
} else {
PtrOff = DAG.getStore(Chain, dl, Arg, PtrOff,
MachinePointerInfo::getStack(LocMemOffset),
false, false, 0);
}
return PtrOff;
}
/// LowerCAL - functions arguments are copied from virtual
/// regs to (physical regs)/(stack frame), CALLSEQ_START and
/// CALLSEQ_END are emitted.
/// TODO: isVarArg, isTailCall, hasStructRet
SDValue
AMDILTargetLowering::LowerCall(SDValue Chain, SDValue Callee,
CallingConv::ID CallConv, bool isVarArg, bool doesNotRet,
bool& isTailCall,
const SmallVectorImpl<ISD::OutputArg> &Outs,
const SmallVectorImpl<SDValue> &OutVals,
const SmallVectorImpl<ISD::InputArg> &Ins,
DebugLoc dl, SelectionDAG &DAG,
SmallVectorImpl<SDValue> &InVals)
const
{
isTailCall = false;
MachineFunction& MF = DAG.getMachineFunction();
// FIXME: DO we need to handle fast calling conventions and tail call
// optimizations?? X86/PPC ISelLowering
/*bool hasStructRet = (TheCall->getNumArgs())
? TheCall->getArgFlags(0).device()->isSRet()
: false;*/
MachineFrameInfo *MFI = MF.getFrameInfo();
// Analyze operands of the call, assigning locations to each operand
SmallVector<CCValAssign, 16> ArgLocs;
CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(),
getTargetMachine(), ArgLocs, *DAG.getContext());
// Analyize the calling operands, but need to change
// if we have more than one calling convetion
CCInfo.AnalyzeCallOperands(Outs, CCAssignFnForNode(CallConv));
unsigned int NumBytes = CCInfo.getNextStackOffset();
if (isTailCall) {
assert(isTailCall && "Tail Call not handled yet!");
// See X86/PPC ISelLowering
}
Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(NumBytes, true));
SmallVector<std::pair<unsigned int, SDValue>, 8> RegsToPass;
SmallVector<SDValue, 8> MemOpChains;
SDValue StackPtr;
//unsigned int FirstStacArgLoc = 0;
//int LastArgStackLoc = 0;
// Walk the register/memloc assignments, insert copies/loads
for (unsigned int i = 0, e = ArgLocs.size(); i != e; ++i) {
CCValAssign &VA = ArgLocs[i];
//bool isByVal = Flags.isByVal(); // handle byval/bypointer registers
// Arguments start after the 5 first operands of ISD::CALL
SDValue Arg = OutVals[i];
//Promote the value if needed
switch(VA.getLocInfo()) {
default: assert(0 && "Unknown loc info!");
case CCValAssign::Full:
break;
case CCValAssign::SExt:
Arg = DAG.getNode(ISD::SIGN_EXTEND,
dl,
VA.getLocVT(), Arg);
break;
case CCValAssign::ZExt:
Arg = DAG.getNode(ISD::ZERO_EXTEND,
dl,
VA.getLocVT(), Arg);
break;
case CCValAssign::AExt:
Arg = DAG.getNode(ISD::ANY_EXTEND,
dl,
VA.getLocVT(), Arg);
break;
}
if (VA.isRegLoc()) {
RegsToPass.push_back(std::make_pair(VA.getLocReg(), Arg));
} else if (VA.isMemLoc()) {
// Create the frame index object for this incoming parameter
int FI = MFI->CreateFixedObject(VA.getValVT().getSizeInBits()/8,
VA.getLocMemOffset(), true);
SDValue PtrOff = DAG.getFrameIndex(FI,getPointerTy());
// emit ISD::STORE whichs stores the
// parameter value to a stack Location
MemOpChains.push_back(DAG.getStore(Chain, dl, Arg, PtrOff,
MachinePointerInfo::getFixedStack(FI),
false, false, 0));
} else {
assert(0 && "Not a Reg/Mem Loc, major error!");
}
}
if (!MemOpChains.empty()) {
Chain = DAG.getNode(ISD::TokenFactor,
dl,
MVT::Other,
&MemOpChains[0],
MemOpChains.size());
}
SDValue InFlag;
if (!isTailCall) {
for (unsigned int i = 0, e = RegsToPass.size(); i != e; ++i) {
Chain = DAG.getCopyToReg(Chain,
dl,
RegsToPass[i].first,
RegsToPass[i].second,
InFlag);
InFlag = Chain.getValue(1);
}
}
// If the callee is a GlobalAddress/ExternalSymbol node (quite common,
// every direct call is) turn it into a TargetGlobalAddress/
// TargetExternalSymbol
// node so that legalize doesn't hack it.
if (GlobalAddressSDNode *G = dyn_cast<GlobalAddressSDNode>(Callee)) {
Callee = DAG.getTargetGlobalAddress(G->getGlobal(), dl, getPointerTy());
}
else if (ExternalSymbolSDNode *S = dyn_cast<ExternalSymbolSDNode>(Callee)) {
Callee = DAG.getTargetExternalSymbol(S->getSymbol(), getPointerTy());
}
else if (isTailCall) {
assert(0 && "Tail calls are not handled yet");
// see X86 ISelLowering for ideas on implementation: 1708
}
SDVTList NodeTys = DAG.getVTList(MVT::Other, MVTGLUE);
SmallVector<SDValue, 8> Ops;
if (isTailCall) {
assert(0 && "Tail calls are not handled yet");
// see X86 ISelLowering for ideas on implementation: 1721
}
// If this is a direct call, pass the chain and the callee
if (Callee.getNode()) {
Ops.push_back(Chain);
Ops.push_back(Callee);
}
if (isTailCall) {
assert(0 && "Tail calls are not handled yet");
// see X86 ISelLowering for ideas on implementation: 1739
}
// Add argument registers to the end of the list so that they are known
// live into the call
for (unsigned int i = 0, e = RegsToPass.size(); i != e; ++i) {
Ops.push_back(DAG.getRegister(
RegsToPass[i].first,
RegsToPass[i].second.getValueType()));
}
if (InFlag.getNode()) {
Ops.push_back(InFlag);
}
// Emit Tail Call
if (isTailCall) {
assert(0 && "Tail calls are not handled yet");
// see X86 ISelLowering for ideas on implementation: 1762
}
Chain = DAG.getNode(AMDILISD::CALL,
dl,
NodeTys, &Ops[0], Ops.size());
InFlag = Chain.getValue(1);
// Create the CALLSEQ_END node
Chain = DAG.getCALLSEQ_END(
Chain,
DAG.getIntPtrConstant(NumBytes, true),
DAG.getIntPtrConstant(0, true),
InFlag);
InFlag = Chain.getValue(1);
// Handle result values, copying them out of physregs into vregs that
// we return
return LowerCallResult(Chain, InFlag, CallConv, isVarArg, Ins, dl, DAG,
InVals);
}
SDValue
AMDILTargetLowering::genCLZuN(SDValue Op, SelectionDAG &DAG,
uint32_t bits) const
{
DebugLoc DL = Op.getDebugLoc();
EVT INTTY = Op.getValueType();
EVT FPTY;
if (INTTY.isVector()) {
FPTY = EVT(MVT::getVectorVT(MVT::f32,
INTTY.getVectorNumElements()));
} else {
FPTY = EVT(MVT::f32);
}
/* static inline uint
__clz_Nbit(uint x)
{
int xor = 0x3f800000U | x;
float tp = as_float(xor);
float t = tp + -1.0f;
uint tint = as_uint(t);
int cmp = (x != 0);
uint tsrc = tint >> 23;
uint tmask = tsrc & 0xffU;
uint cst = (103 + N)U - tmask;
return cmp ? cst : N;
}
*/
assert(INTTY.getScalarType().getSimpleVT().SimpleTy == MVT::i32
&& "genCLZu16 only works on 32bit types");
// uint x = Op
SDValue x = Op;
// xornode = 0x3f800000 | x
SDValue xornode = DAG.getNode(ISD::OR, DL, INTTY,
DAG.getConstant(0x3f800000, INTTY), x);
// float tp = as_float(xornode)
SDValue tp = DAG.getNode(ISDBITCAST, DL, FPTY, xornode);
// float t = tp + -1.0f
SDValue t = DAG.getNode(ISD::FADD, DL, FPTY, tp,
DAG.getConstantFP(-1.0f, FPTY));
// uint tint = as_uint(t)
SDValue tint = DAG.getNode(ISDBITCAST, DL, INTTY, t);
// int cmp = (x != 0)
SDValue cmp = DAG.getNode(AMDILISD::CMP, DL, INTTY,
DAG.getConstant(CondCCodeToCC(ISD::SETNE, MVT::i32), MVT::i32), x,
DAG.getConstant(0, INTTY));
// uint tsrc = tint >> 23
SDValue tsrc = DAG.getNode(ISD::SRL, DL, INTTY, tint,
DAG.getConstant(23, INTTY));
// uint tmask = tsrc & 0xFF
SDValue tmask = DAG.getNode(ISD::AND, DL, INTTY, tsrc,
DAG.getConstant(0xFFU, INTTY));
// uint cst = (103 + bits) - tmask
SDValue cst = DAG.getNode(ISD::SUB, DL, INTTY,
DAG.getConstant((103U + bits), INTTY), tmask);
// return cmp ? cst : N
cst = DAG.getNode(AMDILISD::CMOVLOG, DL, INTTY, cmp, cst,
DAG.getConstant(bits, INTTY));
return cst;
}
SDValue
AMDILTargetLowering::genCLZu32(SDValue Op, SelectionDAG &DAG) const
{
SDValue DST = SDValue();
DebugLoc DL = Op.getDebugLoc();
EVT INTTY = Op.getValueType();
const AMDILSubtarget &STM = getTargetMachine().getSubtarget<AMDILSubtarget>();
if (STM.device()->getGeneration() >= AMDILDeviceInfo::HD5XXX) {
//__clz_32bit(uint u)
//{
// int z = __amdil_ffb_hi(u) ;
// return z < 0 ? 32 : z;
// }
// uint u = op
SDValue u = Op;
// int z = __amdil_ffb_hi(u)
SDValue z = DAG.getNode(AMDILISD::IFFB_HI, DL, INTTY, u);
// int cmp = z < 0
SDValue cmp = DAG.getNode(AMDILISD::CMP, DL, INTTY,
DAG.getConstant(CondCCodeToCC(ISD::SETLT, MVT::i32), MVT::i32),
z, DAG.getConstant(0, INTTY));
// return cmp ? 32 : z
DST = DAG.getNode(AMDILISD::CMOVLOG, DL, INTTY, cmp,
DAG.getConstant(32, INTTY), z);
} else if (STM.device()->getGeneration() == AMDILDeviceInfo::HD4XXX) {
// static inline uint
//__clz_32bit(uint x)
//{
// uint zh = __clz_16bit(x >> 16);
// uint zl = __clz_16bit(x & 0xffffU);
// return zh == 16U ? 16U + zl : zh;
//}
// uint x = Op
SDValue x = Op;
// uint xs16 = x >> 16
SDValue xs16 = DAG.getNode(ISD::SRL, DL, INTTY, x,
DAG.getConstant(16, INTTY));
// uint zh = __clz_16bit(xs16)
SDValue zh = genCLZuN(xs16, DAG, 16);
// uint xa16 = x & 0xFFFF
SDValue xa16 = DAG.getNode(ISD::AND, DL, INTTY, x,
DAG.getConstant(0xFFFFU, INTTY));
// uint zl = __clz_16bit(xa16)
SDValue zl = genCLZuN(xa16, DAG, 16);
// uint cmp = zh == 16U
SDValue cmp = DAG.getNode(AMDILISD::CMP, DL, INTTY,
DAG.getConstant(CondCCodeToCC(ISD::SETEQ, MVT::i32), MVT::i32),
zh, DAG.getConstant(16U, INTTY));
// uint zl16 = zl + 16
SDValue zl16 = DAG.getNode(ISD::ADD, DL, INTTY,
DAG.getConstant(16, INTTY), zl);
// return cmp ? zl16 : zh
DST = DAG.getNode(AMDILISD::CMOVLOG, DL, INTTY,
cmp, zl16, zh);
} else {
assert(0 && "Attempting to generate a CLZ function with an"
" unknown graphics card");
}
return DST;
}
SDValue
AMDILTargetLowering::genCLZu64(SDValue Op, SelectionDAG &DAG) const
{
SDValue DST = SDValue();
DebugLoc DL = Op.getDebugLoc();
EVT INTTY;
EVT LONGTY = Op.getValueType();
bool isVec = LONGTY.isVector();
if (isVec) {
INTTY = EVT(MVT::getVectorVT(MVT::i32, Op.getValueType()
.getVectorNumElements()));
} else {
INTTY = EVT(MVT::i32);
}
const AMDILSubtarget &STM = getTargetMachine().getSubtarget<AMDILSubtarget>();
if (STM.device()->getGeneration() >= AMDILDeviceInfo::HD5XXX) {
// Evergreen:
// static inline uint
// __clz_u64(ulong x)
// {
//uint zhi = __clz_32bit((uint)(x >> 32));
//uint zlo = __clz_32bit((uint)(x & 0xffffffffUL));
//return zhi == 32U ? 32U + zlo : zhi;
//}
//ulong x = op
SDValue x = Op;
// uint xhi = x >> 32
SDValue xlo = DAG.getNode((isVec) ? AMDILISD::LCOMPLO2 : AMDILISD::LCOMPLO, DL, INTTY, x);
// uint xlo = x & 0xFFFFFFFF
SDValue xhi = DAG.getNode((isVec) ? AMDILISD::LCOMPHI2 : AMDILISD::LCOMPHI, DL, INTTY, x);
// uint zhi = __clz_32bit(xhi)
SDValue zhi = genCLZu32(xhi, DAG);
// uint zlo = __clz_32bit(xlo)
SDValue zlo = genCLZu32(xlo, DAG);
// uint cmp = zhi == 32
SDValue cmp = DAG.getNode(AMDILISD::CMP, DL, INTTY,
DAG.getConstant(CondCCodeToCC(ISD::SETEQ, MVT::i32), MVT::i32),
zhi, DAG.getConstant(32U, INTTY));
// uint zlop32 = 32 + zlo
SDValue zlop32 = DAG.getNode(AMDILISD::ADD, DL, INTTY,
DAG.getConstant(32U, INTTY), zlo);
// return cmp ? zlop32: zhi
DST = DAG.getNode(AMDILISD::CMOVLOG, DL, INTTY, cmp, zlop32, zhi);
} else if (STM.device()->getGeneration() == AMDILDeviceInfo::HD4XXX) {
// HD4XXX:
// static inline uint
//__clz_64bit(ulong x)
//{
//uint zh = __clz_23bit((uint)(x >> 46)) - 5U;
//uint zm = __clz_23bit((uint)(x >> 23) & 0x7fffffU);
//uint zl = __clz_23bit((uint)x & 0x7fffffU);
//uint r = zh == 18U ? 18U + zm : zh;
//return zh + zm == 41U ? 41U + zl : r;
//}
//ulong x = Op
SDValue x = Op;
// ulong xs46 = x >> 46
SDValue xs46 = DAG.getNode(ISD::SRL, DL, LONGTY, x,
DAG.getConstant(46, LONGTY));
// uint ixs46 = (uint)xs46
SDValue ixs46 = DAG.getNode(ISD::TRUNCATE, DL, INTTY, xs46);
// ulong xs23 = x >> 23
SDValue xs23 = DAG.getNode(ISD::SRL, DL, LONGTY, x,
DAG.getConstant(23, LONGTY));
// uint ixs23 = (uint)xs23
SDValue ixs23 = DAG.getNode(ISD::TRUNCATE, DL, INTTY, xs23);
// uint xs23m23 = ixs23 & 0x7FFFFF
SDValue xs23m23 = DAG.getNode(ISD::AND, DL, INTTY, ixs23,
DAG.getConstant(0x7fffffU, INTTY));
// uint ix = (uint)x
SDValue ix = DAG.getNode((isVec) ? AMDILISD::LCOMPLO2 : AMDILISD::LCOMPLO, DL, INTTY, x);
// uint xm23 = ix & 0x7FFFFF
SDValue xm23 = DAG.getNode(ISD::AND, DL, INTTY, ix,
DAG.getConstant(0x7fffffU, INTTY));
// uint zh = __clz_23bit(ixs46)
SDValue zh = genCLZuN(ixs46, DAG, 23);
// uint zm = __clz_23bit(xs23m23)
SDValue zm = genCLZuN(xs23m23, DAG, 23);
// uint zl = __clz_23bit(xm23)
SDValue zl = genCLZuN(xm23, DAG, 23);
// uint zhm5 = zh - 5
SDValue zhm5 = DAG.getNode(ISD::ADD, DL, INTTY, zh,
DAG.getConstant(-5U, INTTY));
SDValue const18 = DAG.getConstant(18, INTTY);
SDValue const41 = DAG.getConstant(41, INTTY);
// uint cmp1 = zh = 18
SDValue cmp1 = DAG.getNode(AMDILISD::CMP, DL, INTTY,
DAG.getConstant(CondCCodeToCC(ISD::SETEQ, MVT::i32), MVT::i32),
zhm5, const18);
// uint zhm5zm = zhm5 + zh
SDValue zhm5zm = DAG.getNode(ISD::ADD, DL, INTTY, zhm5, zm);
// uint cmp2 = zhm5zm == 41
SDValue cmp2 = DAG.getNode(AMDILISD::CMP, DL, INTTY,
DAG.getConstant(CondCCodeToCC(ISD::SETEQ, MVT::i32), MVT::i32),
zhm5zm, const41);
// uint zmp18 = zhm5 + 18
SDValue zmp18 = DAG.getNode(ISD::ADD, DL, INTTY, zm, const18);
// uint zlp41 = zl + 41
SDValue zlp41 = DAG.getNode(ISD::ADD, DL, INTTY, zl, const41);
// uint r = cmp1 ? zmp18 : zh
SDValue r = DAG.getNode(AMDILISD::CMOVLOG, DL, INTTY,
cmp1, zmp18, zhm5);
// return cmp2 ? zlp41 : r
DST = DAG.getNode(AMDILISD::CMOVLOG, DL, INTTY, cmp2, zlp41, r);
} else {
assert(0 && "Attempting to generate a CLZ function with an"
" unknown graphics card");
}
return DST;
}
SDValue
AMDILTargetLowering::genf64toi64(SDValue RHS, SelectionDAG &DAG,
bool includeSign) const
{
EVT INTVT;
EVT LONGVT;
SDValue DST;
DebugLoc DL = RHS.getDebugLoc();
EVT RHSVT = RHS.getValueType();
bool isVec = RHSVT.isVector();
if (isVec) {
LONGVT = EVT(MVT::getVectorVT(MVT::i64, RHSVT
.getVectorNumElements()));
INTVT = EVT(MVT::getVectorVT(MVT::i32, RHSVT
.getVectorNumElements()));
} else {
LONGVT = EVT(MVT::i64);
INTVT = EVT(MVT::i32);
}
const AMDILSubtarget &STM = getTargetMachine().getSubtarget<AMDILSubtarget>();
if (STM.device()->getGeneration() > AMDILDeviceInfo::HD6XXX) {
// unsigned version:
// uint uhi = (uint)(d * 0x1.0p-32);
// uint ulo = (uint)(mad((double)uhi, -0x1.0p+32, d));
// return as_ulong2((uint2)(ulo, uhi));
//
// signed version:
// double ad = fabs(d);
// long l = unsigned_version(ad);
// long nl = -l;
// return d == ad ? l : nl;
SDValue d = RHS;
if (includeSign) {
d = DAG.getNode(ISD::FABS, DL, RHSVT, d);
}
SDValue uhid = DAG.getNode(ISD::FMUL, DL, RHSVT, d,
DAG.getConstantFP(0x2f800000, RHSVT));
SDValue uhi = DAG.getNode(ISD::FP_TO_UINT, DL, INTVT, uhid);
SDValue ulod = DAG.getNode(ISD::UINT_TO_FP, DL, RHSVT, uhi);
ulod = DAG.getNode(AMDILISD::MAD, DL, RHSVT, ulod,
DAG.getConstantFP(0xcf800000, RHSVT), d);
SDValue ulo = DAG.getNode(ISD::FP_TO_UINT, DL, INTVT, ulod);
SDValue l = DAG.getNode((isVec) ? AMDILISD::LCREATE2 : AMDILISD::LCREATE, DL, LONGVT, ulo, uhi);
if (includeSign) {
SDValue nl = DAG.getNode(AMDILISD::INEGATE, DL, LONGVT, l);
SDValue c = DAG.getNode(AMDILISD::CMP, DL, RHSVT,
DAG.getConstant(CondCCodeToCC(ISD::SETEQ, MVT::f64), MVT::i32),
RHS, d);
l = DAG.getNode(AMDILISD::CMOVLOG, DL, LONGVT, c, l, nl);
}
DST = l;
} else {
/*
__attribute__((always_inline)) long
cast_f64_to_i64(double d)
{
// Convert d in to 32-bit components
long x = as_long(d);
xhi = LCOMPHI(x);
xlo = LCOMPLO(x);
// Generate 'normalized' mantissa
mhi = xhi | 0x00100000; // hidden bit
mhi <<= 11;
temp = xlo >> (32 - 11);
mhi |= temp
mlo = xlo << 11;
// Compute shift right count from exponent
e = (xhi >> (52-32)) & 0x7ff;
sr = 1023 + 63 - e;
srge64 = sr >= 64;
srge32 = sr >= 32;
// Compute result for 0 <= sr < 32
rhi0 = mhi >> (sr &31);
rlo0 = mlo >> (sr &31);
temp = mhi << (32 - sr);
temp |= rlo0;
rlo0 = sr ? temp : rlo0;
// Compute result for 32 <= sr
rhi1 = 0;
rlo1 = srge64 ? 0 : rhi0;
// Pick between the 2 results
rhi = srge32 ? rhi1 : rhi0;
rlo = srge32 ? rlo1 : rlo0;
// Optional saturate on overflow
srlt0 = sr < 0;
rhi = srlt0 ? MAXVALUE : rhi;
rlo = srlt0 ? MAXVALUE : rlo;
// Create long
res = LCREATE( rlo, rhi );
// Deal with sign bit (ignoring whether result is signed or unsigned value)
if (includeSign) {
sign = ((signed int) xhi) >> 31; fill with sign bit
sign = LCREATE( sign, sign );
res += sign;
res ^= sign;
}
return res;
}
*/
SDValue c11 = DAG.getConstant( 63 - 52, INTVT );
SDValue c32 = DAG.getConstant( 32, INTVT );
// Convert d in to 32-bit components
SDValue d = RHS;
SDValue x = DAG.getNode(ISDBITCAST, DL, LONGVT, d);
SDValue xhi = DAG.getNode( (isVec) ? AMDILISD::LCOMPHI2 : AMDILISD::LCOMPHI, DL, INTVT, x );
SDValue xlo = DAG.getNode( (isVec) ? AMDILISD::LCOMPLO2 : AMDILISD::LCOMPLO, DL, INTVT, x );
// Generate 'normalized' mantissa
SDValue mhi = DAG.getNode( ISD::OR, DL, INTVT,
xhi, DAG.getConstant( 0x00100000, INTVT ) );
mhi = DAG.getNode( ISD::SHL, DL, INTVT, mhi, c11 );
SDValue temp = DAG.getNode( ISD::SRL, DL, INTVT,
xlo, DAG.getConstant( 32 - (63 - 52), INTVT ) );
mhi = DAG.getNode( ISD::OR, DL, INTVT, mhi, temp );
SDValue mlo = DAG.getNode( ISD::SHL, DL, INTVT, xlo, c11 );
// Compute shift right count from exponent
SDValue e = DAG.getNode( ISD::SRL, DL, INTVT,
xhi, DAG.getConstant( 52-32, INTVT ) );
e = DAG.getNode( ISD::AND, DL, INTVT,
e, DAG.getConstant( 0x7ff, INTVT ) );
SDValue sr = DAG.getNode( ISD::SUB, DL, INTVT,
DAG.getConstant( 1023 + 63, INTVT ), e );
SDValue srge64 = DAG.getNode( AMDILISD::CMP, DL, INTVT,
DAG.getConstant(CondCCodeToCC(ISD::SETGE, MVT::i32), MVT::i32),
sr, DAG.getConstant(64, INTVT));
SDValue srge32 = DAG.getNode( AMDILISD::CMP, DL, INTVT,
DAG.getConstant(CondCCodeToCC(ISD::SETGE, MVT::i32), MVT::i32),
sr, DAG.getConstant(32, INTVT));
// Compute result for 0 <= sr < 32
SDValue rhi0 = DAG.getNode( ISD::SRL, DL, INTVT, mhi, sr );
SDValue rlo0 = DAG.getNode( ISD::SRL, DL, INTVT, mlo, sr );
temp = DAG.getNode( ISD::SUB, DL, INTVT, c32, sr );
temp = DAG.getNode( ISD::SHL, DL, INTVT, mhi, temp );
temp = DAG.getNode( ISD::OR, DL, INTVT, rlo0, temp );
rlo0 = DAG.getNode( AMDILISD::CMOVLOG, DL, INTVT, sr, temp, rlo0 );
// Compute result for 32 <= sr
SDValue rhi1 = DAG.getConstant( 0, INTVT );
SDValue rlo1 = DAG.getNode( AMDILISD::CMOVLOG, DL, INTVT,
srge64, rhi1, rhi0 );
// Pick between the 2 results
SDValue rhi = DAG.getNode( AMDILISD::CMOVLOG, DL, INTVT,
srge32, rhi1, rhi0 );
SDValue rlo = DAG.getNode( AMDILISD::CMOVLOG, DL, INTVT,
srge32, rlo1, rlo0 );
// Create long
SDValue res = DAG.getNode( (isVec) ? AMDILISD::LCREATE2 : AMDILISD::LCREATE, DL, LONGVT, rlo, rhi );
// Deal with sign bit
if (includeSign) {
SDValue sign = DAG.getNode( ISD::SRA, DL, INTVT,
xhi, DAG.getConstant( 31, INTVT ) );
sign = DAG.getNode( (isVec) ? AMDILISD::LCREATE2 : AMDILISD::LCREATE, DL, LONGVT, sign, sign );
res = DAG.getNode( ISD::ADD, DL, LONGVT, res, sign );
res = DAG.getNode( ISD::XOR, DL, LONGVT, res, sign );
}
DST = res;
}
return DST;
}
SDValue
AMDILTargetLowering::genf64toi32(SDValue RHS, SelectionDAG &DAG,
bool includeSign) const
{
EVT INTVT;
EVT LONGVT;
DebugLoc DL = RHS.getDebugLoc();
EVT RHSVT = RHS.getValueType();
bool isVec = RHSVT.isVector();
if (isVec) {
LONGVT = EVT(MVT::getVectorVT(MVT::i64,
RHSVT.getVectorNumElements()));
INTVT = EVT(MVT::getVectorVT(MVT::i32,
RHSVT.getVectorNumElements()));
} else {
LONGVT = EVT(MVT::i64);
INTVT = EVT(MVT::i32);
}
/*
__attribute__((always_inline)) int
cast_f64_to_[u|i]32(double d)
{
// Convert d in to 32-bit components
long x = as_long(d);
xhi = LCOMPHI(x);
xlo = LCOMPLO(x);
// Generate 'normalized' mantissa
mhi = xhi | 0x00100000; // hidden bit
mhi <<= 11;
temp = xlo >> (32 - 11);
mhi |= temp
// Compute shift right count from exponent
e = (xhi >> (52-32)) & 0x7ff;
sr = 1023 + 31 - e;
srge32 = sr >= 32;
// Compute result for 0 <= sr < 32
res = mhi >> (sr &31);
res = srge32 ? 0 : res;
// Optional saturate on overflow
srlt0 = sr < 0;
res = srlt0 ? MAXVALUE : res;
// Deal with sign bit (ignoring whether result is signed or unsigned value)
if (includeSign) {
sign = ((signed int) xhi) >> 31; fill with sign bit
res += sign;
res ^= sign;
}
return res;
}
*/
SDValue c11 = DAG.getConstant( 63 - 52, INTVT );
// Convert d in to 32-bit components
SDValue d = RHS;
SDValue x = DAG.getNode(ISDBITCAST, DL, LONGVT, d);
SDValue xhi = DAG.getNode( (isVec) ? AMDILISD::LCOMPHI2 : AMDILISD::LCOMPHI, DL, INTVT, x );
SDValue xlo = DAG.getNode( (isVec) ? AMDILISD::LCOMPLO2 : AMDILISD::LCOMPLO, DL, INTVT, x );
// Generate 'normalized' mantissa
SDValue mhi = DAG.getNode( ISD::OR, DL, INTVT,
xhi, DAG.getConstant( 0x00100000, INTVT ) );
mhi = DAG.getNode( ISD::SHL, DL, INTVT, mhi, c11 );
SDValue temp = DAG.getNode( ISD::SRL, DL, INTVT,
xlo, DAG.getConstant( 32 - (63 - 52), INTVT ) );
mhi = DAG.getNode( ISD::OR, DL, INTVT, mhi, temp );
// Compute shift right count from exponent
SDValue e = DAG.getNode( ISD::SRL, DL, INTVT,
xhi, DAG.getConstant( 52-32, INTVT ) );
e = DAG.getNode( ISD::AND, DL, INTVT,
e, DAG.getConstant( 0x7ff, INTVT ) );
SDValue sr = DAG.getNode( ISD::SUB, DL, INTVT,
DAG.getConstant( 1023 + 31, INTVT ), e );
SDValue srge32 = DAG.getNode( AMDILISD::CMP, DL, INTVT,
DAG.getConstant(CondCCodeToCC(ISD::SETGE, MVT::i32), MVT::i32),
sr, DAG.getConstant(32, INTVT));
// Compute result for 0 <= sr < 32
SDValue res = DAG.getNode( ISD::SRL, DL, INTVT, mhi, sr );
res = DAG.getNode( AMDILISD::CMOVLOG, DL, INTVT,
srge32, DAG.getConstant(0,INTVT), res );
// Deal with sign bit
if (includeSign) {
SDValue sign = DAG.getNode( ISD::SRA, DL, INTVT,
xhi, DAG.getConstant( 31, INTVT ) );
res = DAG.getNode( ISD::ADD, DL, INTVT, res, sign );
res = DAG.getNode( ISD::XOR, DL, INTVT, res, sign );
}
return res;
}
SDValue
AMDILTargetLowering::LowerFP_TO_UINT(SDValue Op, SelectionDAG &DAG) const
{
SDValue DST;
SDValue RHS = Op.getOperand(0);
EVT RHSVT = RHS.getValueType();
MVT RST = RHSVT.getScalarType().getSimpleVT();
EVT LHSVT = Op.getValueType();
MVT LST = LHSVT.getScalarType().getSimpleVT();
DebugLoc DL = Op.getDebugLoc();
const AMDILSubtarget &STM = getTargetMachine().getSubtarget<AMDILSubtarget>();
if (RST == MVT::f64 && RHSVT.isVector()
&& STM.device()->getGeneration() > AMDILDeviceInfo::HD6XXX) {
// We dont support vector 64bit floating point convertions.
for (unsigned x = 0, y = RHSVT.getVectorNumElements(); x < y; ++x) {
SDValue op = DAG.getNode(ISD::EXTRACT_VECTOR_ELT,
DL, RST, RHS, DAG.getTargetConstant(x, MVT::i32));
op = DAG.getNode(ISD::FP_TO_SINT, DL, LST, op);
if (!x) {
DST = DAG.getNode(AMDILISD::VBUILD, DL, LHSVT, op);
} else {
DST = DAG.getNode(ISD::INSERT_VECTOR_ELT, DL, LHSVT,
DST, op, DAG.getTargetConstant(x, MVT::i32));
}
}
} else {
if (RST == MVT::f64
&& LST == MVT::i32) {
if (STM.device()->getGeneration() > AMDILDeviceInfo::HD6XXX) {
DST = SDValue(Op.getNode(), 0);
} else {
DST = genf64toi32(RHS, DAG, false);
}
} else if (RST == MVT::f64
&& LST == MVT::i64) {
DST = genf64toi64(RHS, DAG, false);
} else if (RST == MVT::f64
&& (LST == MVT::i8 || LST == MVT::i16)) {
if (STM.device()->getGeneration() > AMDILDeviceInfo::HD6XXX) {
DST = DAG.getNode(ISD::TRUNCATE, DL, LHSVT, SDValue(Op.getNode(), 0));
} else {
SDValue ToInt = genf64toi32(RHS, DAG, false);
DST = DAG.getNode(ISD::TRUNCATE, DL, LHSVT, ToInt);
}
} else {
DST = SDValue(Op.getNode(), 0);
}
}
return DST;
}
SDValue
AMDILTargetLowering::genu32tof64(SDValue RHS, EVT LHSVT,
SelectionDAG &DAG) const
{
EVT RHSVT = RHS.getValueType();
DebugLoc DL = RHS.getDebugLoc();
EVT INTVT;
EVT LONGVT;
bool isVec = RHSVT.isVector();
if (isVec) {
LONGVT = EVT(MVT::getVectorVT(MVT::i64,
RHSVT.getVectorNumElements()));
INTVT = EVT(MVT::getVectorVT(MVT::i32,
RHSVT.getVectorNumElements()));
} else {
LONGVT = EVT(MVT::i64);
INTVT = EVT(MVT::i32);
}
SDValue x = RHS;
const AMDILSubtarget &STM = getTargetMachine().getSubtarget<AMDILSubtarget>();
if (STM.calVersion() >= CAL_VERSION_SC_135) {
// unsigned x = RHS;
// ulong xd = (ulong)(0x4330_0000 << 32) | x;
// double d = as_double( xd );
// return d - 0x1.0p+52; // 0x1.0p+52 == 0x4330_0000_0000_0000
SDValue xd = DAG.getNode( (isVec) ? AMDILISD::LCREATE2 : AMDILISD::LCREATE, DL, LONGVT, x,
DAG.getConstant( 0x43300000, INTVT ) );
SDValue d = DAG.getNode( ISDBITCAST, DL, LHSVT, xd );
SDValue offsetd = DAG.getNode( ISDBITCAST, DL, LHSVT,
DAG.getConstant( 0x4330000000000000ULL, LONGVT ) );
return DAG.getNode( ISD::FSUB, DL, LHSVT, d, offsetd );
} else {
SDValue clz = genCLZu32(x, DAG);
// Compute the exponent. 1023 is the bias, 31-clz the actual power of 2
// Except for an input 0... which requires a 0 exponent
SDValue exp = DAG.getNode( ISD::SUB, DL, INTVT,
DAG.getConstant( (1023+31), INTVT), clz );
exp = DAG.getNode( AMDILISD::CMOVLOG, DL, INTVT, x, exp, x );
// Normalize frac
SDValue rhi = DAG.getNode( ISD::SHL, DL, INTVT, x, clz );
// Eliminate hidden bit
rhi = DAG.getNode( ISD::AND, DL, INTVT,
rhi, DAG.getConstant( 0x7fffffff, INTVT ) );
// Pack exponent and frac
SDValue rlo = DAG.getNode( ISD::SHL, DL, INTVT,
rhi, DAG.getConstant( (32 - 11), INTVT ) );
rhi = DAG.getNode( ISD::SRL, DL, INTVT,
rhi, DAG.getConstant( 11, INTVT ) );
exp = DAG.getNode( ISD::SHL, DL, INTVT,
exp, DAG.getConstant( 20, INTVT ) );
rhi = DAG.getNode( ISD::OR, DL, INTVT, rhi, exp );
// Convert 2 x 32 in to 1 x 64, then to double precision float type
SDValue res = DAG.getNode( (isVec) ? AMDILISD::LCREATE2 : AMDILISD::LCREATE, DL, LONGVT, rlo, rhi );
return DAG.getNode(ISDBITCAST, DL, LHSVT, res);
}
}
SDValue
AMDILTargetLowering::genu64tof64(SDValue RHS, EVT LHSVT,
SelectionDAG &DAG) const
{
EVT RHSVT = RHS.getValueType();
DebugLoc DL = RHS.getDebugLoc();
EVT INTVT;
EVT LONGVT;
bool isVec = RHSVT.isVector();
if (isVec) {
INTVT = EVT(MVT::getVectorVT(MVT::i32,
RHSVT.getVectorNumElements()));
} else {
INTVT = EVT(MVT::i32);
}
LONGVT = RHSVT;
SDValue x = RHS;
const AMDILSubtarget &STM = getTargetMachine().getSubtarget<AMDILSubtarget>();
if (STM.device()->getGeneration() > AMDILDeviceInfo::HD6XXX) {
// double dhi = (double)(as_uint2(x).y);
// double dlo = (double)(as_uint2(x).x);
// return mad(dhi, 0x1.0p+32, dlo)
SDValue dhi = DAG.getNode((isVec) ? AMDILISD::LCOMPHI2 : AMDILISD::LCOMPHI, DL, INTVT, x);
dhi = DAG.getNode(ISD::UINT_TO_FP, DL, LHSVT, dhi);
SDValue dlo = DAG.getNode((isVec) ? AMDILISD::LCOMPLO2 : AMDILISD::LCOMPLO, DL, INTVT, x);
dlo = DAG.getNode(ISD::UINT_TO_FP, DL, LHSVT, dlo);
return DAG.getNode(AMDILISD::MAD, DL, LHSVT, dhi,
DAG.getConstantFP(0x4f800000, LHSVT), dlo);
} else if (STM.calVersion() >= CAL_VERSION_SC_135) {
// double lo = as_double( as_ulong( 0x1.0p+52) | (u & 0xffff_ffffUL));
// double hi = as_double( as_ulong( 0x1.0p+84) | (u >> 32));
// return (hi - (0x1.0p+84 + 0x1.0p+52)) + lo;
SDValue xlo = DAG.getNode( (isVec) ? AMDILISD::LCOMPLO2 : AMDILISD::LCOMPLO, DL, INTVT, x ); // x & 0xffff_ffffUL
SDValue xd = DAG.getNode( (isVec) ? AMDILISD::LCREATE2 : AMDILISD::LCREATE, DL, LONGVT, xlo, DAG.getConstant( 0x43300000, INTVT ) );
SDValue lo = DAG.getNode( ISDBITCAST, DL, LHSVT, xd );
SDValue xhi = DAG.getNode((isVec) ? AMDILISD::LCOMPHI2 : AMDILISD::LCOMPHI, DL, INTVT, x ); // x >> 32
SDValue xe = DAG.getNode( (isVec) ? AMDILISD::LCREATE2 : AMDILISD::LCREATE, DL, LONGVT, xhi, DAG.getConstant( 0x45300000, INTVT ) );
SDValue hi = DAG.getNode( ISDBITCAST, DL, LHSVT, xe );
SDValue c = DAG.getNode( ISDBITCAST, DL, LHSVT,
DAG.getConstant( 0x4530000000100000ULL, LONGVT ) );
hi = DAG.getNode( ISD::FSUB, DL, LHSVT, hi, c );
return DAG.getNode( ISD::FADD, DL, LHSVT, hi, lo );
} else {
SDValue clz = genCLZu64(x, DAG);
SDValue xhi = DAG.getNode( (isVec) ? AMDILISD::LCOMPHI2 : AMDILISD::LCOMPHI, DL, INTVT, x );
SDValue xlo = DAG.getNode( (isVec) ? AMDILISD::LCOMPLO2 : AMDILISD::LCOMPLO, DL, INTVT, x );
// Compute the exponent. 1023 is the bias, 63-clz the actual power of 2
SDValue exp = DAG.getNode( ISD::SUB, DL, INTVT,
DAG.getConstant( (1023+63), INTVT), clz );
SDValue mash = DAG.getNode( ISD::OR, DL, INTVT, xhi, xlo );
exp = DAG.getNode( AMDILISD::CMOVLOG, DL, INTVT,
mash, exp, mash ); // exp = exp, or 0 if input was 0
// Normalize frac
SDValue clz31 = DAG.getNode( ISD::AND, DL, INTVT,
clz, DAG.getConstant( 31, INTVT ) );
SDValue rshift = DAG.getNode( ISD::SUB, DL, INTVT,
DAG.getConstant( 32, INTVT ), clz31 );
SDValue t1 = DAG.getNode( ISD::SHL, DL, INTVT, xhi, clz31 );
SDValue t2 = DAG.getNode( ISD::SRL, DL, INTVT, xlo, rshift );
t2 = DAG.getNode( AMDILISD::CMOVLOG, DL, INTVT, clz31, t2, t1 );
SDValue rhi1 = DAG.getNode( ISD::OR, DL, INTVT, t1, t2 );
SDValue rlo1 = DAG.getNode( ISD::SHL, DL, INTVT, xlo, clz31 );
SDValue rhi2 = DAG.getNode( ISD::SHL, DL, INTVT, xlo, clz31 );
SDValue rlo2 = DAG.getConstant( 0, INTVT );
SDValue clz32 = DAG.getNode( ISD::AND, DL, INTVT,
clz, DAG.getConstant( 32, INTVT ) );
SDValue rhi = DAG.getNode( AMDILISD::CMOVLOG, DL, INTVT,
clz32, rhi2, rhi1 );
SDValue rlo = DAG.getNode( AMDILISD::CMOVLOG, DL, INTVT,
clz32, rlo2, rlo1 );
// Eliminate hidden bit
rhi = DAG.getNode( ISD::AND, DL, INTVT,
rhi, DAG.getConstant( 0x7fffffff, INTVT ) );
// Save bits needed to round properly
SDValue round = DAG.getNode( ISD::AND, DL, INTVT,
rlo, DAG.getConstant( 0x7ff, INTVT ) );
// Pack exponent and frac
rlo = DAG.getNode( ISD::SRL, DL, INTVT,
rlo, DAG.getConstant( 11, INTVT ) );
SDValue temp = DAG.getNode( ISD::SHL, DL, INTVT,
rhi, DAG.getConstant( (32 - 11), INTVT ) );
rlo = DAG.getNode( ISD::OR, DL, INTVT, rlo, temp );
rhi = DAG.getNode( ISD::SRL, DL, INTVT,
rhi, DAG.getConstant( 11, INTVT ) );
exp = DAG.getNode( ISD::SHL, DL, INTVT,
exp, DAG.getConstant( 20, INTVT ) );
rhi = DAG.getNode( ISD::OR, DL, INTVT, rhi, exp );
// Compute rounding bit
SDValue even = DAG.getNode( ISD::AND, DL, INTVT,
rlo, DAG.getConstant( 1, INTVT ) );
SDValue grs = DAG.getNode( ISD::AND, DL, INTVT,
round, DAG.getConstant( 0x3ff, INTVT ) );
grs = DAG.getNode( AMDILISD::CMP, DL, INTVT,
DAG.getConstant( CondCCodeToCC( ISD::SETNE, MVT::i32), MVT::i32),
grs, DAG.getConstant( 0, INTVT ) ); // -1 if any GRS set, 0 if none
grs = DAG.getNode( ISD::OR, DL, INTVT, grs, even );
round = DAG.getNode( ISD::SRL, DL, INTVT,
round, DAG.getConstant( 10, INTVT ) );
round = DAG.getNode( ISD::AND, DL, INTVT, round, grs ); // 0 or 1
// Add rounding bit
SDValue lround = DAG.getNode( (isVec) ? AMDILISD::LCREATE2 : AMDILISD::LCREATE, DL, LONGVT,
round, DAG.getConstant( 0, INTVT ) );
SDValue res = DAG.getNode( (isVec) ? AMDILISD::LCREATE2 : AMDILISD::LCREATE, DL, LONGVT, rlo, rhi );
res = DAG.getNode( ISD::ADD, DL, LONGVT, res, lround );
return DAG.getNode(ISDBITCAST, DL, LHSVT, res);
}
}
SDValue
AMDILTargetLowering::LowerUINT_TO_FP(SDValue Op, SelectionDAG &DAG) const
{
SDValue RHS = Op.getOperand(0);
EVT RHSVT = RHS.getValueType();
MVT RST = RHSVT.getScalarType().getSimpleVT();
EVT LHSVT = Op.getValueType();
MVT LST = LHSVT.getScalarType().getSimpleVT();
DebugLoc DL = Op.getDebugLoc();
SDValue DST;
EVT INTVT;
EVT LONGVT;
const AMDILSubtarget &STM = getTargetMachine().getSubtarget<AMDILSubtarget>();
if (LST == MVT::f64 && LHSVT.isVector()
&& STM.device()->getGeneration() > AMDILDeviceInfo::HD6XXX) {
// We dont support vector 64bit floating point convertions.
DST = Op;
for (unsigned x = 0, y = LHSVT.getVectorNumElements(); x < y; ++x) {
SDValue op = DAG.getNode(ISD::EXTRACT_VECTOR_ELT,
DL, RST, RHS, DAG.getTargetConstant(x, MVT::i32));
op = DAG.getNode(ISD::UINT_TO_FP, DL, LST, op);
if (!x) {
DST = DAG.getNode(AMDILISD::VBUILD, DL, LHSVT, op);
} else {
DST = DAG.getNode(ISD::INSERT_VECTOR_ELT, DL, LHSVT, DST,
op, DAG.getTargetConstant(x, MVT::i32));
}
}
} else {
if (RST == MVT::i32
&& LST == MVT::f64) {
if (STM.device()->getGeneration() > AMDILDeviceInfo::HD6XXX) {
DST = SDValue(Op.getNode(), 0);
} else {
DST = genu32tof64(RHS, LHSVT, DAG);
}
} else if (RST == MVT::i64
&& LST == MVT::f64) {
DST = genu64tof64(RHS, LHSVT, DAG);
} else {
DST = SDValue(Op.getNode(), 0);
}
}
return DST;
}
SDValue
AMDILTargetLowering::LowerSUB(SDValue Op, SelectionDAG &DAG) const
{
SDValue LHS = Op.getOperand(0);
SDValue RHS = Op.getOperand(1);
DebugLoc DL = Op.getDebugLoc();
EVT OVT = Op.getValueType();
SDValue DST;
bool isVec = RHS.getValueType().isVector();
if (OVT.getScalarType() == MVT::i64) {
MVT INTTY = MVT::i32;
if (OVT == MVT::v2i64) {
INTTY = MVT::v2i32;
}
SDValue LHSLO, LHSHI, RHSLO, RHSHI, INTLO, INTHI;
// TODO: need to turn this into a bitcast of i64/v2i64 to v2i32/v4i32
LHSLO = DAG.getNode((isVec) ? AMDILISD::LCOMPLO2 : AMDILISD::LCOMPLO, DL, INTTY, LHS);
RHSLO = DAG.getNode((isVec) ? AMDILISD::LCOMPLO2 : AMDILISD::LCOMPLO, DL, INTTY, RHS);
LHSHI = DAG.getNode((isVec) ? AMDILISD::LCOMPHI2 : AMDILISD::LCOMPHI, DL, INTTY, LHS);
RHSHI = DAG.getNode((isVec) ? AMDILISD::LCOMPHI2 : AMDILISD::LCOMPHI, DL, INTTY, RHS);
INTLO = DAG.getNode(ISD::SUB, DL, INTTY, LHSLO, RHSLO);
INTHI = DAG.getNode(ISD::SUB, DL, INTTY, LHSHI, RHSHI);
//TODO: need to use IBORROW on HD5XXX and later hardware
SDValue cmp;
if (OVT == MVT::i64) {
cmp = DAG.getNode(AMDILISD::CMP, DL, INTTY,
DAG.getConstant(CondCCodeToCC(ISD::SETULT, MVT::i32), MVT::i32),
LHSLO, RHSLO);
} else {
SDValue cmplo;
SDValue cmphi;
SDValue LHSRLO = DAG.getNode(ISD::EXTRACT_VECTOR_ELT,
DL, MVT::i32, LHSLO, DAG.getTargetConstant(0, MVT::i32));
SDValue LHSRHI = DAG.getNode(ISD::EXTRACT_VECTOR_ELT,
DL, MVT::i32, LHSLO, DAG.getTargetConstant(1, MVT::i32));
SDValue RHSRLO = DAG.getNode(ISD::EXTRACT_VECTOR_ELT,
DL, MVT::i32, RHSLO, DAG.getTargetConstant(0, MVT::i32));
SDValue RHSRHI = DAG.getNode(ISD::EXTRACT_VECTOR_ELT,
DL, MVT::i32, RHSLO, DAG.getTargetConstant(1, MVT::i32));
cmplo = DAG.getNode(AMDILISD::CMP, DL, MVT::i32,
DAG.getConstant(CondCCodeToCC(ISD::SETULT, MVT::i32), MVT::i32),
LHSRLO, RHSRLO);
cmphi = DAG.getNode(AMDILISD::CMP, DL, MVT::i32,
DAG.getConstant(CondCCodeToCC(ISD::SETULT, MVT::i32), MVT::i32),
LHSRHI, RHSRHI);
cmp = DAG.getNode(AMDILISD::VBUILD, DL, MVT::v2i32, cmplo);
cmp = DAG.getNode(ISD::INSERT_VECTOR_ELT, DL, MVT::v2i32,
cmp, cmphi, DAG.getTargetConstant(1, MVT::i32));
}
INTHI = DAG.getNode(ISD::ADD, DL, INTTY, INTHI, cmp);
DST = DAG.getNode((isVec) ? AMDILISD::LCREATE2 : AMDILISD::LCREATE, DL, OVT,
INTLO, INTHI);
} else {
DST = SDValue(Op.getNode(), 0);
}
return DST;
}
SDValue
AMDILTargetLowering::LowerFDIV(SDValue Op, SelectionDAG &DAG) const
{
EVT OVT = Op.getValueType();
SDValue DST;
if (OVT.getScalarType() == MVT::f64) {
DST = LowerFDIV64(Op, DAG);
} else if (OVT.getScalarType() == MVT::f32) {
DST = LowerFDIV32(Op, DAG);
} else {
DST = SDValue(Op.getNode(), 0);
}
return DST;
}
SDValue
AMDILTargetLowering::LowerSDIV(SDValue Op, SelectionDAG &DAG) const
{
EVT OVT = Op.getValueType();
SDValue DST;
if (OVT.getScalarType() == MVT::i64) {
DST = LowerSDIV64(Op, DAG);
} else if (OVT.getScalarType() == MVT::i32) {
DST = LowerSDIV32(Op, DAG);
} else if (OVT.getScalarType() == MVT::i16
|| OVT.getScalarType() == MVT::i8) {
DST = LowerSDIV24(Op, DAG);
} else {
DST = SDValue(Op.getNode(), 0);
}
return DST;
}
SDValue
AMDILTargetLowering::LowerSREM(SDValue Op, SelectionDAG &DAG) const
{
EVT OVT = Op.getValueType();
SDValue DST;
if (OVT.getScalarType() == MVT::i64) {
DST = LowerSREM64(Op, DAG);
} else if (OVT.getScalarType() == MVT::i32) {
DST = LowerSREM32(Op, DAG);
} else if (OVT.getScalarType() == MVT::i16) {
DST = LowerSREM16(Op, DAG);
} else if (OVT.getScalarType() == MVT::i8) {
DST = LowerSREM8(Op, DAG);
} else {
DST = SDValue(Op.getNode(), 0);
}
return DST;
}
SDValue
AMDILTargetLowering::LowerUREM(SDValue Op, SelectionDAG &DAG) const
{
EVT OVT = Op.getValueType();
SDValue DST;
if (OVT.getScalarType() == MVT::i64) {
DST = LowerUREM64(Op, DAG);
} else if (OVT.getScalarType() == MVT::i32) {
DST = LowerUREM32(Op, DAG);
} else if (OVT.getScalarType() == MVT::i16) {
DST = LowerUREM16(Op, DAG);
} else if (OVT.getScalarType() == MVT::i8) {
DST = LowerUREM8(Op, DAG);
} else {
DST = SDValue(Op.getNode(), 0);
}
return DST;
}
SDValue
AMDILTargetLowering::LowerMUL(SDValue Op, SelectionDAG &DAG) const
{
DebugLoc DL = Op.getDebugLoc();
EVT OVT = Op.getValueType();
SDValue DST;
bool isVec = OVT.isVector();
if (OVT.getScalarType() != MVT::i64)
{
DST = SDValue(Op.getNode(), 0);
} else {
assert(OVT.getScalarType() == MVT::i64 && "Only 64 bit mul should be lowered!");
// TODO: This needs to be turned into a tablegen pattern
SDValue LHS = Op.getOperand(0);
SDValue RHS = Op.getOperand(1);
MVT INTTY = MVT::i32;
if (OVT == MVT::v2i64) {
INTTY = MVT::v2i32;
}
// mul64(h1, l1, h0, l0)
SDValue LHSLO = DAG.getNode((isVec) ? AMDILISD::LCOMPLO2 : AMDILISD::LCOMPLO,
DL,
INTTY, LHS);
SDValue LHSHI = DAG.getNode((isVec) ? AMDILISD::LCOMPHI2 : AMDILISD::LCOMPHI,
DL,
INTTY, LHS);
SDValue RHSLO = DAG.getNode((isVec) ? AMDILISD::LCOMPLO2 : AMDILISD::LCOMPLO,
DL,
INTTY, RHS);
SDValue RHSHI = DAG.getNode((isVec) ? AMDILISD::LCOMPHI2 : AMDILISD::LCOMPHI,
DL,
INTTY, RHS);
// MULLO_UINT_1 r1, h0, l1
SDValue RHILLO = DAG.getNode(AMDILISD::UMUL,
DL,
INTTY, RHSHI, LHSLO);
// MULLO_UINT_1 r2, h1, l0
SDValue RLOHHI = DAG.getNode(AMDILISD::UMUL,
DL,
INTTY, RHSLO, LHSHI);
// ADD_INT hr, r1, r2
SDValue ADDHI = DAG.getNode(ISD::ADD,
DL,
INTTY, RHILLO, RLOHHI);
// MULHI_UINT_1 r3, l1, l0
SDValue RLOLLO = DAG.getNode(ISD::MULHU,
DL,
INTTY, RHSLO, LHSLO);
// ADD_INT hr, hr, r3
SDValue HIGH = DAG.getNode(ISD::ADD,
DL,
INTTY, ADDHI, RLOLLO);
// MULLO_UINT_1 l3, l1, l0
SDValue LOW = DAG.getNode(AMDILISD::UMUL,
DL,
INTTY, LHSLO, RHSLO);
DST = DAG.getNode((isVec) ? AMDILISD::LCREATE2 : AMDILISD::LCREATE,
DL,
OVT, LOW, HIGH);
}
return DST;
}
SDValue
AMDILTargetLowering::LowerBUILD_VECTOR( SDValue Op, SelectionDAG &DAG ) const
{
EVT VT = Op.getValueType();
SDValue Nodes1;
SDValue second;
SDValue third;
SDValue fourth;
DebugLoc DL = Op.getDebugLoc();
Nodes1 = DAG.getNode(AMDILISD::VBUILD,
DL,
VT, Op.getOperand(0));
#if 0
bool allEqual = true;
for (unsigned x = 1, y = Op.getNumOperands(); x < y; ++x) {
if (Op.getOperand(0) != Op.getOperand(x)) {
allEqual = false;
break;
}
}
if (allEqual) {
return Nodes1;
}
#endif
switch(Op.getNumOperands()) {
default:
case 1:
break;
case 4:
fourth = Op.getOperand(3);
if (fourth.getOpcode() != ISD::UNDEF) {
Nodes1 = DAG.getNode(
ISD::INSERT_VECTOR_ELT,
DL,
Op.getValueType(),
Nodes1,
fourth,
DAG.getConstant(7, MVT::i32));
}
case 3:
third = Op.getOperand(2);
if (third.getOpcode() != ISD::UNDEF) {
Nodes1 = DAG.getNode(
ISD::INSERT_VECTOR_ELT,
DL,
Op.getValueType(),
Nodes1,
third,
DAG.getConstant(6, MVT::i32));
}
case 2:
second = Op.getOperand(1);
if (second.getOpcode() != ISD::UNDEF) {
Nodes1 = DAG.getNode(
ISD::INSERT_VECTOR_ELT,
DL,
Op.getValueType(),
Nodes1,
second,
DAG.getConstant(5, MVT::i32));
}
break;
};
return Nodes1;
}
SDValue
AMDILTargetLowering::LowerINSERT_VECTOR_ELT(SDValue Op,
SelectionDAG &DAG) const
{
DebugLoc DL = Op.getDebugLoc();
EVT VT = Op.getValueType();
const SDValue *ptr = NULL;
const ConstantSDNode *CSDN = dyn_cast<ConstantSDNode>(Op.getOperand(2));
uint32_t swizzleNum = 0;
SDValue DST;
if (!VT.isVector()) {
SDValue Res = Op.getOperand(0);
return Res;
}
if (Op.getOperand(1).getOpcode() != ISD::UNDEF) {
ptr = &Op.getOperand(1);
} else {
ptr = &Op.getOperand(0);
}
if (CSDN) {
swizzleNum = (uint32_t)CSDN->getZExtValue();
uint32_t mask2 = 0x04030201 & ~(0xFF << (swizzleNum * 8));
uint32_t mask3 = 0x01010101 & (0xFF << (swizzleNum * 8));
DST = DAG.getNode(AMDILISD::VINSERT,
DL,
VT,
Op.getOperand(0),
*ptr,
DAG.getTargetConstant(mask2, MVT::i32),
DAG.getTargetConstant(mask3, MVT::i32));
} else {
uint32_t mask2 = 0x04030201 & ~(0xFF << (swizzleNum * 8));
uint32_t mask3 = 0x01010101 & (0xFF << (swizzleNum * 8));
SDValue res = DAG.getNode(AMDILISD::VINSERT,
DL, VT, Op.getOperand(0), *ptr,
DAG.getTargetConstant(mask2, MVT::i32),
DAG.getTargetConstant(mask3, MVT::i32));
for (uint32_t x = 1; x < VT.getVectorNumElements(); ++x) {
mask2 = 0x04030201 & ~(0xFF << (x * 8));
mask3 = 0x01010101 & (0xFF << (x * 8));
SDValue t = DAG.getNode(AMDILISD::VINSERT,
DL, VT, Op.getOperand(0), *ptr,
DAG.getTargetConstant(mask2, MVT::i32),
DAG.getTargetConstant(mask3, MVT::i32));
SDValue c = DAG.getNode(AMDILISD::CMP, DL, ptr->getValueType(),
DAG.getConstant(AMDILCC::IL_CC_I_EQ, MVT::i32),
Op.getOperand(2), DAG.getConstant(x, MVT::i32));
c = DAG.getNode(AMDILISD::VBUILD, DL, Op.getValueType(), c);
res = DAG.getNode(AMDILISD::CMOVLOG, DL, VT, c, t, res);
}
DST = res;
}
return DST;
}
SDValue
AMDILTargetLowering::LowerEXTRACT_VECTOR_ELT(SDValue Op,
SelectionDAG &DAG) const
{
EVT VT = Op.getValueType();
const ConstantSDNode *CSDN = dyn_cast<ConstantSDNode>(Op.getOperand(1));
uint64_t swizzleNum = 0;
DebugLoc DL = Op.getDebugLoc();
SDValue Res;
if (!Op.getOperand(0).getValueType().isVector()) {
Res = Op.getOperand(0);
return Res;
}
if (CSDN) {
// Static vector extraction
swizzleNum = CSDN->getZExtValue() + 1;
Res = DAG.getNode(AMDILISD::VEXTRACT,
DL, VT,
Op.getOperand(0),
DAG.getTargetConstant(swizzleNum, MVT::i32));
} else {
SDValue Op1 = Op.getOperand(1);
uint32_t vecSize = 4;
SDValue Op0 = Op.getOperand(0);
SDValue res = DAG.getNode(AMDILISD::VEXTRACT,
DL, VT, Op0,
DAG.getTargetConstant(1, MVT::i32));
if (Op0.getValueType().isVector()) {
vecSize = Op0.getValueType().getVectorNumElements();
}
for (uint32_t x = 2; x <= vecSize; ++x) {
SDValue t = DAG.getNode(AMDILISD::VEXTRACT,
DL, VT, Op0,
DAG.getTargetConstant(x, MVT::i32));
SDValue c = DAG.getNode(AMDILISD::CMP,
DL, Op1.getValueType(),
DAG.getConstant(AMDILCC::IL_CC_I_EQ, MVT::i32),
Op1, DAG.getConstant(x, MVT::i32));
res = DAG.getNode(AMDILISD::CMOVLOG, DL,
VT, c, t, res);
}
Res = res;
}
return Res;
}
SDValue
AMDILTargetLowering::LowerEXTRACT_SUBVECTOR(SDValue Op,
SelectionDAG &DAG) const
{
uint32_t vecSize = Op.getValueType().getVectorNumElements();
SDValue src = Op.getOperand(0);
const ConstantSDNode *CSDN = dyn_cast<ConstantSDNode>(Op.getOperand(1));
uint64_t offset = 0;
EVT vecType = Op.getValueType().getVectorElementType();
DebugLoc DL = Op.getDebugLoc();
SDValue Result;
if (CSDN) {
offset = CSDN->getZExtValue();
Result = DAG.getNode(ISD::EXTRACT_VECTOR_ELT,
DL,vecType, src, DAG.getConstant(offset, MVT::i32));
Result = DAG.getNode(AMDILISD::VBUILD, DL,
Op.getValueType(), Result);
for (uint32_t x = 1; x < vecSize; ++x) {
SDValue elt = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL, vecType,
src, DAG.getConstant(offset + x, MVT::i32));
if (elt.getOpcode() != ISD::UNDEF) {
Result = DAG.getNode(ISD::INSERT_VECTOR_ELT, DL,
Op.getValueType(), Result, elt,
DAG.getConstant(x, MVT::i32));
}
}
} else {
SDValue idx = Op.getOperand(1);
Result = DAG.getNode(ISD::EXTRACT_VECTOR_ELT,
DL, vecType, src, idx);
Result = DAG.getNode(AMDILISD::VBUILD, DL,
Op.getValueType(), Result);
for (uint32_t x = 1; x < vecSize; ++x) {
idx = DAG.getNode(ISD::ADD, DL, vecType,
idx, DAG.getConstant(1, MVT::i32));
SDValue elt = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL, vecType,
src, idx);
if (elt.getOpcode() != ISD::UNDEF) {
Result = DAG.getNode(ISD::INSERT_VECTOR_ELT, DL,
Op.getValueType(), Result, elt, idx);
}
}
}
return Result;
}
SDValue
AMDILTargetLowering::LowerSCALAR_TO_VECTOR(SDValue Op,
SelectionDAG &DAG) const
{
SDValue Res = DAG.getNode(AMDILISD::VBUILD,
Op.getDebugLoc(),
Op.getValueType(),
Op.getOperand(0));
return Res;
}
SDValue
AMDILTargetLowering::LowerSELECT(SDValue Op, SelectionDAG &DAG) const
{
SDValue Cond = Op.getOperand(0);
SDValue LHS = Op.getOperand(1);
SDValue RHS = Op.getOperand(2);
DebugLoc DL = Op.getDebugLoc();
Cond = getConversionNode(DAG, Cond, Op, true);
Cond = DAG.getNode(AMDILISD::CMOVLOG,
DL,
Op.getValueType(), Cond, LHS, RHS);
return Cond;
}
SDValue
AMDILTargetLowering::LowerSETCC(SDValue Op, SelectionDAG &DAG) const
{
SDValue Cond;
SDValue LHS = Op.getOperand(0);
SDValue RHS = Op.getOperand(1);
SDValue CC = Op.getOperand(2);
DebugLoc DL = Op.getDebugLoc();
ISD::CondCode SetCCOpcode = cast<CondCodeSDNode>(CC)->get();
unsigned int AMDILCC = CondCCodeToCC(
SetCCOpcode,
LHS.getValueType().getSimpleVT().SimpleTy);
assert((AMDILCC != AMDILCC::COND_ERROR) && "Invalid SetCC!");
Cond = DAG.getNode(
ISD::SELECT_CC,
Op.getDebugLoc(),
LHS.getValueType(),
LHS, RHS,
DAG.getConstant(-1, MVT::i32),
DAG.getConstant(0, MVT::i32),
CC);
Cond = getConversionNode(DAG, Cond, Op, true);
Cond = DAG.getNode(
ISD::AND,
DL,
Cond.getValueType(),
DAG.getConstant(1, Cond.getValueType()),
Cond);
return Cond;
}
SDValue
AMDILTargetLowering::LowerSIGN_EXTEND_INREG(SDValue Op, SelectionDAG &DAG) const
{
SDValue Data = Op.getOperand(0);
VTSDNode *BaseType = cast<VTSDNode>(Op.getOperand(1));
DebugLoc DL = Op.getDebugLoc();
EVT DVT = Data.getValueType();
EVT BVT = BaseType->getVT();
unsigned baseBits = BVT.getScalarType().getSizeInBits();
unsigned srcBits = DVT.isSimple() ? DVT.getScalarType().getSizeInBits() : 1;
unsigned shiftBits = srcBits - baseBits;
if (srcBits < 32) {
// If the op is less than 32 bits, then it needs to extend to 32bits
// so it can properly keep the upper bits valid.
EVT IVT = genIntType(32, DVT.isVector() ? DVT.getVectorNumElements() : 1);
Data = DAG.getNode(ISD::ZERO_EXTEND, DL, IVT, Data);
shiftBits = 32 - baseBits;
DVT = IVT;
}
SDValue Shift = DAG.getConstant(shiftBits, DVT);
// Shift left by 'Shift' bits.
Data = DAG.getNode(ISD::SHL, DL, DVT, Data, Shift);
// Signed shift Right by 'Shift' bits.
Data = DAG.getNode(ISD::SRA, DL, DVT, Data, Shift);
if (srcBits < 32) {
// Once the sign extension is done, the op needs to be converted to
// its original type.
Data = DAG.getSExtOrTrunc(Data, DL, Op.getOperand(0).getValueType());
}
return Data;
}
EVT
AMDILTargetLowering::genIntType(uint32_t size, uint32_t numEle) const
{
int iSize = (size * numEle);
int vEle = (iSize >> ((size == 64) ? 6 : 5));
if (!vEle) {
vEle = 1;
}
if (size == 64) {
if (vEle == 1) {
return EVT(MVT::i64);
} else {
return EVT(MVT::getVectorVT(MVT::i64, vEle));
}
} else {
if (vEle == 1) {
return EVT(MVT::i32);
} else {
return EVT(MVT::getVectorVT(MVT::i32, vEle));
}
}
}
SDValue
AMDILTargetLowering::LowerDYNAMIC_STACKALLOC(SDValue Op,
SelectionDAG &DAG) const
{
SDValue Chain = Op.getOperand(0);
SDValue Size = Op.getOperand(1);
unsigned int SPReg = AMDIL::SP;
DebugLoc DL = Op.getDebugLoc();
SDValue SP = DAG.getCopyFromReg(Chain,
DL,
SPReg, MVT::i32);
SDValue NewSP = DAG.getNode(ISD::ADD,
DL,
MVT::i32, SP, Size);
Chain = DAG.getCopyToReg(SP.getValue(1),
DL,
SPReg, NewSP);
SDValue Ops[2] = {NewSP, Chain};
Chain = DAG.getMergeValues(Ops, 2 ,DL);
return Chain;
}
SDValue
AMDILTargetLowering::LowerBRCOND(SDValue Op, SelectionDAG &DAG) const
{
SDValue Chain = Op.getOperand(0);
SDValue Cond = Op.getOperand(1);
SDValue Jump = Op.getOperand(2);
SDValue Result;
Result = DAG.getNode(
AMDILISD::BRANCH_COND,
Op.getDebugLoc(),
Op.getValueType(),
Chain, Jump, Cond);
return Result;
}
SDValue
AMDILTargetLowering::LowerBR_CC(SDValue Op, SelectionDAG &DAG) const
{
SDValue Chain = Op.getOperand(0);
SDValue CC = Op.getOperand(1);
SDValue LHS = Op.getOperand(2);
SDValue RHS = Op.getOperand(3);
SDValue JumpT = Op.getOperand(4);
SDValue CmpValue;
SDValue Result;
CmpValue = DAG.getNode(
ISD::SELECT_CC,
Op.getDebugLoc(),
LHS.getValueType(),
LHS, RHS,
DAG.getConstant(-1, MVT::i32),
DAG.getConstant(0, MVT::i32),
CC);
Result = DAG.getNode(
AMDILISD::BRANCH_COND,
CmpValue.getDebugLoc(),
MVT::Other, Chain,
JumpT, CmpValue);
return Result;
}
SDValue
AMDILTargetLowering::LowerFP_ROUND(SDValue Op, SelectionDAG &DAG) const
{
SDValue Result = DAG.getNode(
AMDILISD::DP_TO_FP,
Op.getDebugLoc(),
Op.getValueType(),
Op.getOperand(0),
Op.getOperand(1));
return Result;
}
SDValue
AMDILTargetLowering::LowerCONCAT_VECTORS(SDValue Op, SelectionDAG &DAG) const
{
SDValue Result = DAG.getNode(
AMDILISD::VCONCAT,
Op.getDebugLoc(),
Op.getValueType(),
Op.getOperand(0),
Op.getOperand(1));
return Result;
}
// LowerRET - Lower an ISD::RET node.
SDValue
AMDILTargetLowering::LowerReturn(SDValue Chain,
CallingConv::ID CallConv, bool isVarArg,
const SmallVectorImpl<ISD::OutputArg> &Outs,
const SmallVectorImpl<SDValue> &OutVals,
DebugLoc dl, SelectionDAG &DAG)
const
{
//MachineFunction& MF = DAG.getMachineFunction();
// CCValAssign - represent the assignment of the return value
// to a location
SmallVector<CCValAssign, 16> RVLocs;
// CCState - Info about the registers and stack slot
CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(),
getTargetMachine(), RVLocs, *DAG.getContext());
// Analyze return values of ISD::RET
CCInfo.AnalyzeReturn(Outs, RetCC_AMDIL32);
// If this is the first return lowered for this function, add
// the regs to the liveout set for the function
MachineRegisterInfo &MRI = DAG.getMachineFunction().getRegInfo();
for (unsigned int i = 0, e = RVLocs.size(); i != e; ++i) {
if (RVLocs[i].isRegLoc() && !MRI.isLiveOut(RVLocs[i].getLocReg())) {
MRI.addLiveOut(RVLocs[i].getLocReg());
}
}
// FIXME: implement this when tail call is implemented
// Chain = GetPossiblePreceedingTailCall(Chain, AMDILISD::TAILCALL);
// both x86 and ppc implement this in ISelLowering
// Regular return here
SDValue Flag;
SmallVector<SDValue, 6> RetOps;
RetOps.push_back(Chain);
RetOps.push_back(DAG.getConstant(0/*getBytesToPopOnReturn()*/, MVT::i32));
for (unsigned int i = 0, e = RVLocs.size(); i != e; ++i) {
CCValAssign &VA = RVLocs[i];
SDValue ValToCopy = OutVals[i];
assert(VA.isRegLoc() && "Can only return in registers!");
// ISD::Ret => ret chain, (regnum1, val1), ...
// So i * 2 + 1 index only the regnums
Chain = DAG.getCopyToReg(Chain,
dl,
VA.getLocReg(),
ValToCopy,
Flag);
// guarantee that all emitted copies are stuck together
// avoiding something bad
Flag = Chain.getValue(1);
}
/*if (MF.getFunction()->hasStructRetAttr()) {
assert(0 && "Struct returns are not yet implemented!");
// Both MIPS and X86 have this
}*/
RetOps[0] = Chain;
if (Flag.getNode())
RetOps.push_back(Flag);
Flag = DAG.getNode(AMDILISD::RET_FLAG,
dl,
MVT::Other, &RetOps[0], RetOps.size());
return Flag;
}
unsigned int
AMDILTargetLowering::getFunctionAlignment(const Function *) const
{
return 0;
}
void
AMDILTargetLowering::setPrivateData(MachineBasicBlock *BB,
MachineBasicBlock::iterator &BBI,
DebugLoc *DL, const TargetInstrInfo *TII) const
{
mBB = BB;
mBBI = BBI;
mDL = DL;
mTII = TII;
}
uint32_t
AMDILTargetLowering::genVReg(uint32_t regType) const
{
return mBB->getParent()->getRegInfo().createVirtualRegister(
getTargetMachine().getRegisterInfo()->getRegClass(regType));
}
MachineInstrBuilder
AMDILTargetLowering::generateMachineInst(uint32_t opcode, uint32_t dst) const
{
return BuildMI(*mBB, mBBI, *mDL, mTII->get(opcode), dst);
}
MachineInstrBuilder
AMDILTargetLowering::generateMachineInst(uint32_t opcode, uint32_t dst,
uint32_t src1) const
{
return generateMachineInst(opcode, dst).addReg(src1);
}
MachineInstrBuilder
AMDILTargetLowering::generateMachineInst(uint32_t opcode, uint32_t dst,
uint32_t src1, uint32_t src2) const
{
return generateMachineInst(opcode, dst, src1).addReg(src2);
}
MachineInstrBuilder
AMDILTargetLowering::generateMachineInst(uint32_t opcode, uint32_t dst,
uint32_t src1, uint32_t src2, uint32_t src3) const
{
return generateMachineInst(opcode, dst, src1, src2).addReg(src3);
}
SDValue
AMDILTargetLowering::LowerSDIV24(SDValue Op, SelectionDAG &DAG) const
{
DebugLoc DL = Op.getDebugLoc();
EVT OVT = Op.getValueType();
SDValue LHS = Op.getOperand(0);
SDValue RHS = Op.getOperand(1);
MVT INTTY;
MVT FLTTY;
if (!OVT.isVector()) {
INTTY = MVT::i32;
FLTTY = MVT::f32;
} else if (OVT.getVectorNumElements() == 2) {
INTTY = MVT::v2i32;
FLTTY = MVT::v2f32;
} else if (OVT.getVectorNumElements() == 4) {
INTTY = MVT::v4i32;
FLTTY = MVT::v4f32;
}
unsigned bitsize = OVT.getScalarType().getSizeInBits();
// char|short jq = ia ^ ib;
SDValue jq = DAG.getNode(ISD::XOR, DL, OVT, LHS, RHS);
// jq = jq >> (bitsize - 2)
jq = DAG.getNode(ISD::SRA, DL, OVT, jq, DAG.getConstant(bitsize - 2, OVT));
// jq = jq | 0x1
jq = DAG.getNode(ISD::OR, DL, OVT, jq, DAG.getConstant(1, OVT));
// jq = (int)jq
jq = DAG.getSExtOrTrunc(jq, DL, INTTY);
// int ia = (int)LHS;
SDValue ia = DAG.getSExtOrTrunc(LHS, DL, INTTY);
// int ib, (int)RHS;
SDValue ib = DAG.getSExtOrTrunc(RHS, DL, INTTY);
// float fa = (float)ia;
SDValue fa = DAG.getNode(ISD::SINT_TO_FP, DL, FLTTY, ia);
// float fb = (float)ib;
SDValue fb = DAG.getNode(ISD::SINT_TO_FP, DL, FLTTY, ib);
// float fq = native_divide(fa, fb);
SDValue fq = DAG.getNode(AMDILISD::DIV_INF, DL, FLTTY, fa, fb);
// fq = trunc(fq);
fq = DAG.getNode(ISD::FTRUNC, DL, FLTTY, fq);
// float fqneg = -fq;
SDValue fqneg = DAG.getNode(ISD::FNEG, DL, FLTTY, fq);
// float fr = mad(fqneg, fb, fa);
SDValue fr = DAG.getNode(AMDILISD::MAD, DL, FLTTY, fqneg, fb, fa);
// int iq = (int)fq;
SDValue iq = DAG.getNode(ISD::FP_TO_SINT, DL, INTTY, fq);
// fr = fabs(fr);
fr = DAG.getNode(ISD::FABS, DL, FLTTY, fr);
// fb = fabs(fb);
fb = DAG.getNode(ISD::FABS, DL, FLTTY, fb);
// int cv = fr >= fb;
SDValue cv;
if (INTTY == MVT::i32) {
cv = DAG.getSetCC(DL, INTTY, fr, fb, ISD::SETOGE);
} else {
cv = DAG.getSetCC(DL, INTTY, fr, fb, ISD::SETOGE);
}
// jq = (cv ? jq : 0);
jq = DAG.getNode(AMDILISD::CMOVLOG, DL, OVT, cv, jq,
DAG.getConstant(0, OVT));
// dst = iq + jq;
iq = DAG.getSExtOrTrunc(iq, DL, OVT);
iq = DAG.getNode(ISD::ADD, DL, OVT, iq, jq);
return iq;
}
SDValue
AMDILTargetLowering::LowerSDIV32(SDValue Op, SelectionDAG &DAG) const
{
DebugLoc DL = Op.getDebugLoc();
EVT OVT = Op.getValueType();
SDValue LHS = Op.getOperand(0);
SDValue RHS = Op.getOperand(1);
// The LowerSDIV32 function generates equivalent to the following IL.
// mov r0, LHS
// mov r1, RHS
// ilt r10, r0, 0
// ilt r11, r1, 0
// iadd r0, r0, r10
// iadd r1, r1, r11
// ixor r0, r0, r10
// ixor r1, r1, r11
// udiv r0, r0, r1
// ixor r10, r10, r11
// iadd r0, r0, r10
// ixor DST, r0, r10
// mov r0, LHS
SDValue r0 = LHS;
// mov r1, RHS
SDValue r1 = RHS;
// ilt r10, r0, 0
SDValue r10 = DAG.getSelectCC(DL,
r0, DAG.getConstant(0, OVT),
DAG.getConstant(-1, MVT::i32),
DAG.getConstant(0, MVT::i32),
ISD::SETLT);
// ilt r11, r1, 0
SDValue r11 = DAG.getSelectCC(DL,
r1, DAG.getConstant(0, OVT),
DAG.getConstant(-1, MVT::i32),
DAG.getConstant(0, MVT::i32),
ISD::SETLT);
// iadd r0, r0, r10
r0 = DAG.getNode(ISD::ADD, DL, OVT, r0, r10);
// iadd r1, r1, r11
r1 = DAG.getNode(ISD::ADD, DL, OVT, r1, r11);
// ixor r0, r0, r10
r0 = DAG.getNode(ISD::XOR, DL, OVT, r0, r10);
// ixor r1, r1, r11
r1 = DAG.getNode(ISD::XOR, DL, OVT, r1, r11);
// udiv r0, r0, r1
r0 = DAG.getNode(ISD::UDIV, DL, OVT, r0, r1);
// ixor r10, r10, r11
r10 = DAG.getNode(ISD::XOR, DL, OVT, r10, r11);
// iadd r0, r0, r10
r0 = DAG.getNode(ISD::ADD, DL, OVT, r0, r10);
// ixor DST, r0, r10
SDValue DST = DAG.getNode(ISD::XOR, DL, OVT, r0, r10);
return DST;
}
SDValue
AMDILTargetLowering::LowerSDIV64(SDValue Op, SelectionDAG &DAG) const
{
return SDValue(Op.getNode(), 0);
}
SDValue
AMDILTargetLowering::LowerUDIV24(SDValue Op, SelectionDAG &DAG) const
{
DebugLoc DL = Op.getDebugLoc();
EVT OVT = Op.getValueType();
SDValue LHS = Op.getOperand(0);
SDValue RHS = Op.getOperand(1);
MVT INTTY;
MVT FLTTY;
if (!OVT.isVector()) {
INTTY = MVT::i32;
FLTTY = MVT::f32;
} else if (OVT.getVectorNumElements() == 2) {
INTTY = MVT::v2i32;
FLTTY = MVT::v2f32;
} else if (OVT.getVectorNumElements() == 4) {
INTTY = MVT::v4i32;
FLTTY = MVT::v4f32;
}
// The LowerUDIV24 function implements the following CL.
// int ia = (int)LHS
// float fa = (float)ia
// int ib = (int)RHS
// float fb = (float)ib
// float fq = native_divide(fa, fb)
// fq = trunc(fq)
// float t = mad(fq, fb, fb)
// int iq = (int)fq - (t <= fa)
// return (type)iq
// int ia = (int)LHS
SDValue ia = DAG.getZExtOrTrunc(LHS, DL, INTTY);
// float fa = (float)ia
SDValue fa = DAG.getNode(ISD::SINT_TO_FP, DL, FLTTY, ia);
// int ib = (int)RHS
SDValue ib = DAG.getZExtOrTrunc(RHS, DL, INTTY);
// float fb = (float)ib
SDValue fb = DAG.getNode(ISD::SINT_TO_FP, DL, FLTTY, ib);
// float fq = native_divide(fa, fb)
SDValue fq = DAG.getNode(AMDILISD::DIV_INF, DL, FLTTY, fa, fb);
// fq = trunc(fq)
fq = DAG.getNode(ISD::FTRUNC, DL, FLTTY, fq);
// float t = mad(fq, fb, fb)
SDValue t = DAG.getNode(AMDILISD::MAD, DL, FLTTY, fq, fb, fb);
// int iq = (int)fq - (t <= fa) // This is sub and not add because GPU returns 0, -1
SDValue iq;
fq = DAG.getNode(ISD::FP_TO_SINT, DL, INTTY, fq);
if (INTTY == MVT::i32) {
iq = DAG.getSetCC(DL, INTTY, t, fa, ISD::SETOLE);
} else {
iq = DAG.getSetCC(DL, INTTY, t, fa, ISD::SETOLE);
}
iq = DAG.getNode(ISD::ADD, DL, INTTY, fq, iq);
// return (type)iq
iq = DAG.getZExtOrTrunc(iq, DL, OVT);
return iq;
}
SDValue
AMDILTargetLowering::LowerSREM8(SDValue Op, SelectionDAG &DAG) const
{
DebugLoc DL = Op.getDebugLoc();
EVT OVT = Op.getValueType();
MVT INTTY = MVT::i32;
if (OVT == MVT::v2i8) {
INTTY = MVT::v2i32;
} else if (OVT == MVT::v4i8) {
INTTY = MVT::v4i32;
}
SDValue LHS = DAG.getSExtOrTrunc(Op.getOperand(0), DL, INTTY);
SDValue RHS = DAG.getSExtOrTrunc(Op.getOperand(1), DL, INTTY);
LHS = DAG.getNode(ISD::SREM, DL, INTTY, LHS, RHS);
LHS = DAG.getSExtOrTrunc(LHS, DL, OVT);
return LHS;
}
SDValue
AMDILTargetLowering::LowerSREM16(SDValue Op, SelectionDAG &DAG) const
{
DebugLoc DL = Op.getDebugLoc();
EVT OVT = Op.getValueType();
MVT INTTY = MVT::i32;
if (OVT == MVT::v2i16) {
INTTY = MVT::v2i32;
} else if (OVT == MVT::v4i16) {
INTTY = MVT::v4i32;
}
SDValue LHS = DAG.getSExtOrTrunc(Op.getOperand(0), DL, INTTY);
SDValue RHS = DAG.getSExtOrTrunc(Op.getOperand(1), DL, INTTY);
LHS = DAG.getNode(ISD::SREM, DL, INTTY, LHS, RHS);
LHS = DAG.getSExtOrTrunc(LHS, DL, OVT);
return LHS;
}
SDValue
AMDILTargetLowering::LowerSREM32(SDValue Op, SelectionDAG &DAG) const
{
DebugLoc DL = Op.getDebugLoc();
EVT OVT = Op.getValueType();
SDValue LHS = Op.getOperand(0);
SDValue RHS = Op.getOperand(1);
// The LowerSREM32 function generates equivalent to the following IL.
// mov r0, LHS
// mov r1, RHS
// ilt r10, r0, 0
// ilt r11, r1, 0
// iadd r0, r0, r10
// iadd r1, r1, r11
// ixor r0, r0, r10
// ixor r1, r1, r11
// udiv r20, r0, r1
// umul r20, r20, r1
// sub r0, r0, r20
// iadd r0, r0, r10
// ixor DST, r0, r10
// mov r0, LHS
SDValue r0 = LHS;
// mov r1, RHS
SDValue r1 = RHS;
// ilt r10, r0, 0
SDValue r10 = DAG.getNode(AMDILISD::CMP, DL, OVT,
DAG.getConstant(CondCCodeToCC(ISD::SETLT, MVT::i32), MVT::i32),
r0, DAG.getConstant(0, OVT));
// ilt r11, r1, 0
SDValue r11 = DAG.getNode(AMDILISD::CMP, DL, OVT,
DAG.getConstant(CondCCodeToCC(ISD::SETLT, MVT::i32), MVT::i32),
r1, DAG.getConstant(0, OVT));
// iadd r0, r0, r10
r0 = DAG.getNode(ISD::ADD, DL, OVT, r0, r10);
// iadd r1, r1, r11
r1 = DAG.getNode(ISD::ADD, DL, OVT, r1, r11);
// ixor r0, r0, r10
r0 = DAG.getNode(ISD::XOR, DL, OVT, r0, r10);
// ixor r1, r1, r11
r1 = DAG.getNode(ISD::XOR, DL, OVT, r1, r11);
// udiv r20, r0, r1
SDValue r20 = DAG.getNode(ISD::UREM, DL, OVT, r0, r1);
// umul r20, r20, r1
r20 = DAG.getNode(AMDILISD::UMUL, DL, OVT, r20, r1);
// sub r0, r0, r20
r0 = DAG.getNode(ISD::SUB, DL, OVT, r0, r20);
// iadd r0, r0, r10
r0 = DAG.getNode(ISD::ADD, DL, OVT, r0, r10);
// ixor DST, r0, r10
SDValue DST = DAG.getNode(ISD::XOR, DL, OVT, r0, r10);
return DST;
}
SDValue
AMDILTargetLowering::LowerSREM64(SDValue Op, SelectionDAG &DAG) const
{
return SDValue(Op.getNode(), 0);
}
SDValue
AMDILTargetLowering::LowerUREM8(SDValue Op, SelectionDAG &DAG) const
{
DebugLoc DL = Op.getDebugLoc();
EVT OVT = Op.getValueType();
MVT INTTY = MVT::i32;
if (OVT == MVT::v2i8) {
INTTY = MVT::v2i32;
} else if (OVT == MVT::v4i8) {
INTTY = MVT::v4i32;
}
SDValue LHS = Op.getOperand(0);
SDValue RHS = Op.getOperand(1);
// The LowerUREM8 function generates equivalent to the following IL.
// mov r0, as_u32(LHS)
// mov r1, as_u32(RHS)
// and r10, r0, 0xFF
// and r11, r1, 0xFF
// cmov_logical r3, r11, r11, 0x1
// udiv r3, r10, r3
// cmov_logical r3, r11, r3, 0
// umul r3, r3, r11
// sub r3, r10, r3
// and as_u8(DST), r3, 0xFF
// mov r0, as_u32(LHS)
SDValue r0 = DAG.getSExtOrTrunc(LHS, DL, INTTY);
// mov r1, as_u32(RHS)
SDValue r1 = DAG.getSExtOrTrunc(RHS, DL, INTTY);
// and r10, r0, 0xFF
SDValue r10 = DAG.getNode(ISD::AND, DL, INTTY, r0,
DAG.getConstant(0xFF, INTTY));
// and r11, r1, 0xFF
SDValue r11 = DAG.getNode(ISD::AND, DL, INTTY, r1,
DAG.getConstant(0xFF, INTTY));
// cmov_logical r3, r11, r11, 0x1
SDValue r3 = DAG.getNode(AMDILISD::CMOVLOG, DL, INTTY, r11, r11,
DAG.getConstant(0x01, INTTY));
// udiv r3, r10, r3
r3 = DAG.getNode(ISD::UREM, DL, INTTY, r10, r3);
// cmov_logical r3, r11, r3, 0
r3 = DAG.getNode(AMDILISD::CMOVLOG, DL, INTTY, r11, r3,
DAG.getConstant(0, INTTY));
// umul r3, r3, r11
r3 = DAG.getNode(AMDILISD::UMUL, DL, INTTY, r3, r11);
// sub r3, r10, r3
r3 = DAG.getNode(ISD::SUB, DL, INTTY, r10, r3);
// and as_u8(DST), r3, 0xFF
SDValue DST = DAG.getNode(ISD::AND, DL, INTTY, r3,
DAG.getConstant(0xFF, INTTY));
DST = DAG.getZExtOrTrunc(DST, DL, OVT);
return DST;
}
SDValue
AMDILTargetLowering::LowerUREM16(SDValue Op, SelectionDAG &DAG) const
{
DebugLoc DL = Op.getDebugLoc();
EVT OVT = Op.getValueType();
MVT INTTY = MVT::i32;
if (OVT == MVT::v2i16) {
INTTY = MVT::v2i32;
} else if (OVT == MVT::v4i16) {
INTTY = MVT::v4i32;
}
SDValue LHS = Op.getOperand(0);
SDValue RHS = Op.getOperand(1);
// The LowerUREM16 function generatest equivalent to the following IL.
// mov r0, LHS
// mov r1, RHS
// DIV = LowerUDIV16(LHS, RHS)
// and r10, r0, 0xFFFF
// and r11, r1, 0xFFFF
// cmov_logical r3, r11, r11, 0x1
// udiv as_u16(r3), as_u32(r10), as_u32(r3)
// and r3, r3, 0xFFFF
// cmov_logical r3, r11, r3, 0
// umul r3, r3, r11
// sub r3, r10, r3
// and DST, r3, 0xFFFF
// mov r0, LHS
SDValue r0 = LHS;
// mov r1, RHS
SDValue r1 = RHS;
// and r10, r0, 0xFFFF
SDValue r10 = DAG.getNode(ISD::AND, DL, OVT, r0,
DAG.getConstant(0xFFFF, OVT));
// and r11, r1, 0xFFFF
SDValue r11 = DAG.getNode(ISD::AND, DL, OVT, r1,
DAG.getConstant(0xFFFF, OVT));
// cmov_logical r3, r11, r11, 0x1
SDValue r3 = DAG.getNode(AMDILISD::CMOVLOG, DL, OVT, r11, r11,
DAG.getConstant(0x01, OVT));
// udiv as_u16(r3), as_u32(r10), as_u32(r3)
r10 = DAG.getZExtOrTrunc(r10, DL, INTTY);
r3 = DAG.getZExtOrTrunc(r3, DL, INTTY);
r3 = DAG.getNode(ISD::UREM, DL, INTTY, r10, r3);
r3 = DAG.getZExtOrTrunc(r3, DL, OVT);
r10 = DAG.getZExtOrTrunc(r10, DL, OVT);
// and r3, r3, 0xFFFF
r3 = DAG.getNode(ISD::AND, DL, OVT, r3,
DAG.getConstant(0xFFFF, OVT));
// cmov_logical r3, r11, r3, 0
r3 = DAG.getNode(AMDILISD::CMOVLOG, DL, OVT, r11, r3,
DAG.getConstant(0, OVT));
// umul r3, r3, r11
r3 = DAG.getNode(AMDILISD::UMUL, DL, OVT, r3, r11);
// sub r3, r10, r3
r3 = DAG.getNode(ISD::SUB, DL, OVT, r10, r3);
// and DST, r3, 0xFFFF
SDValue DST = DAG.getNode(ISD::AND, DL, OVT, r3,
DAG.getConstant(0xFFFF, OVT));
return DST;
}
SDValue
AMDILTargetLowering::LowerUREM32(SDValue Op, SelectionDAG &DAG) const
{
DebugLoc DL = Op.getDebugLoc();
EVT OVT = Op.getValueType();
SDValue LHS = Op.getOperand(0);
SDValue RHS = Op.getOperand(1);
// The LowerUREM32 function generates equivalent to the following IL.
// udiv r20, LHS, RHS
// umul r20, r20, RHS
// sub DST, LHS, r20
// udiv r20, LHS, RHS
SDValue r20 = DAG.getNode(ISD::UDIV, DL, OVT, LHS, RHS);
// umul r20, r20, RHS
r20 = DAG.getNode(AMDILISD::UMUL, DL, OVT, r20, RHS);
// sub DST, LHS, r20
SDValue DST = DAG.getNode(ISD::SUB, DL, OVT, LHS, r20);
return DST;
}
SDValue
AMDILTargetLowering::LowerUREM64(SDValue Op, SelectionDAG &DAG) const
{
return SDValue(Op.getNode(), 0);
}
SDValue
AMDILTargetLowering::LowerFDIV32(SDValue Op, SelectionDAG &DAG) const
{
DebugLoc DL = Op.getDebugLoc();
EVT OVT = Op.getValueType();
MVT INTTY = MVT::i32;
if (OVT == MVT::v2f32) {
INTTY = MVT::v2i32;
} else if (OVT == MVT::v4f32) {
INTTY = MVT::v4i32;
}
SDValue LHS = Op.getOperand(0);
SDValue RHS = Op.getOperand(1);
SDValue DST;
const AMDILSubtarget &STM = getTargetMachine().getSubtarget<AMDILSubtarget>();
if (STM.device()->getGeneration() == AMDILDeviceInfo::HD4XXX) {
// TODO: This doesn't work for vector types yet
// The LowerFDIV32 function generates equivalent to the following
// IL:
// mov r20, as_int(LHS)
// mov r21, as_int(RHS)
// and r30, r20, 0x7f800000
// and r31, r20, 0x807FFFFF
// and r32, r21, 0x7f800000
// and r33, r21, 0x807FFFFF
// ieq r40, r30, 0x7F800000
// ieq r41, r31, 0x7F800000
// ieq r42, r32, 0
// ieq r43, r33, 0
// and r50, r20, 0x80000000
// and r51, r21, 0x80000000
// ior r32, r32, 0x3f800000
// ior r33, r33, 0x3f800000
// cmov_logical r32, r42, r50, r32
// cmov_logical r33, r43, r51, r33
// cmov_logical r32, r40, r20, r32
// cmov_logical r33, r41, r21, r33
// ior r50, r40, r41
// ior r51, r42, r43
// ior r50, r50, r51
// inegate r52, r31
// iadd r30, r30, r52
// cmov_logical r30, r50, 0, r30
// div_zeroop(infinity) r21, 1.0, r33
// mul_ieee r20, r32, r21
// and r22, r20, 0x7FFFFFFF
// and r23, r20, 0x80000000
// ishr r60, r22, 0x00000017
// ishr r61, r30, 0x00000017
// iadd r20, r20, r30
// iadd r21, r22, r30
// iadd r60, r60, r61
// ige r42, 0, R60
// ior r41, r23, 0x7F800000
// ige r40, r60, 0x000000FF
// cmov_logical r40, r50, 0, r40
// cmov_logical r20, r42, r23, r20
// cmov_logical DST, r40, r41, r20
// as_float(DST)
// mov r20, as_int(LHS)
SDValue R20 = DAG.getNode(ISDBITCAST, DL, INTTY, LHS);
// mov r21, as_int(RHS)
SDValue R21 = DAG.getNode(ISDBITCAST, DL, INTTY, RHS);
// and r30, r20, 0x7f800000
SDValue R30 = DAG.getNode(ISD::AND, DL, INTTY, R20,
DAG.getConstant(0x7F800000, INTTY));
// and r31, r21, 0x7f800000
SDValue R31 = DAG.getNode(ISD::AND, DL, INTTY, R21,
DAG.getConstant(0x7f800000, INTTY));
// and r32, r20, 0x807FFFFF
SDValue R32 = DAG.getNode(ISD::AND, DL, INTTY, R20,
DAG.getConstant(0x807FFFFF, INTTY));
// and r33, r21, 0x807FFFFF
SDValue R33 = DAG.getNode(ISD::AND, DL, INTTY, R21,
DAG.getConstant(0x807FFFFF, INTTY));
// ieq r40, r30, 0x7F800000
SDValue R40 = DAG.getNode(AMDILISD::CMP, DL, INTTY,
DAG.getConstant(CondCCodeToCC(ISD::SETEQ, MVT::i32), MVT::i32),
R30, DAG.getConstant(0x7F800000, INTTY));
// ieq r41, r31, 0x7F800000
SDValue R41 = DAG.getNode(AMDILISD::CMP, DL, INTTY,
DAG.getConstant(CondCCodeToCC(ISD::SETEQ, MVT::i32), MVT::i32),
R31, DAG.getConstant(0x7F800000, INTTY));
// ieq r42, r30, 0
SDValue R42 = DAG.getNode(AMDILISD::CMP, DL, INTTY,
DAG.getConstant(CondCCodeToCC(ISD::SETEQ, MVT::i32), MVT::i32),
R30, DAG.getConstant(0, INTTY));
// ieq r43, r31, 0
SDValue R43 = DAG.getNode(AMDILISD::CMP, DL, INTTY,
DAG.getConstant(CondCCodeToCC(ISD::SETEQ, MVT::i32), MVT::i32),
R31, DAG.getConstant(0, INTTY));
// and r50, r20, 0x80000000
SDValue R50 = DAG.getNode(ISD::AND, DL, INTTY, R20,
DAG.getConstant(0x80000000, INTTY));
// and r51, r21, 0x80000000
SDValue R51 = DAG.getNode(ISD::AND, DL, INTTY, R21,
DAG.getConstant(0x80000000, INTTY));
// ior r32, r32, 0x3f800000
R32 = DAG.getNode(ISD::OR, DL, INTTY, R32,
DAG.getConstant(0x3F800000, INTTY));
// ior r33, r33, 0x3f800000
R33 = DAG.getNode(ISD::OR, DL, INTTY, R33,
DAG.getConstant(0x3F800000, INTTY));
// cmov_logical r32, r42, r50, r32
R32 = DAG.getNode(AMDILISD::CMOVLOG, DL, INTTY, R42, R50, R32);
// cmov_logical r33, r43, r51, r33
R33 = DAG.getNode(AMDILISD::CMOVLOG, DL, INTTY, R43, R51, R33);
// cmov_logical r32, r40, r20, r32
R32 = DAG.getNode(AMDILISD::CMOVLOG, DL, INTTY, R40, R20, R32);
// cmov_logical r33, r41, r21, r33
R33 = DAG.getNode(AMDILISD::CMOVLOG, DL, INTTY, R41, R21, R33);
// ior r50, r40, r41
R50 = DAG.getNode(ISD::OR, DL, INTTY, R40, R41);
// ior r51, r42, r43
R51 = DAG.getNode(ISD::OR, DL, INTTY, R42, R43);
// ior r50, r50, r51
R50 = DAG.getNode(ISD::OR, DL, INTTY, R50, R51);
// inegate r52, r31
SDValue R52 = DAG.getNode(AMDILISD::INEGATE, DL, INTTY, R31);
// iadd r30, r30, r52
R30 = DAG.getNode(ISD::ADD, DL, INTTY, R30, R52);
// cmov_logical r30, r50, 0, r30
R30 = DAG.getNode(AMDILISD::CMOVLOG, DL, INTTY, R50,
DAG.getConstant(0, INTTY), R30);
// div_zeroop(infinity) r21, 1.0, as_float(r33)
R33 = DAG.getNode(ISDBITCAST, DL, OVT, R33);
R21 = DAG.getNode(AMDILISD::DIV_INF, DL, OVT,
DAG.getConstantFP(1.0f, OVT), R33);
// mul_ieee as_int(r20), as_float(r32), r21
R32 = DAG.getNode(ISDBITCAST, DL, OVT, R32);
R20 = DAG.getNode(ISD::FMUL, DL, OVT, R32, R21);
R20 = DAG.getNode(ISDBITCAST, DL, INTTY, R20);
// div_zeroop(infinity) r21, 1.0, as_float(r33)
R33 = DAG.getNode(ISDBITCAST, DL, OVT, R33);
R21 = DAG.getNode(AMDILISD::DIV_INF, DL, OVT,
DAG.getConstantFP(1.0f, OVT), R33);
// mul_ieee as_int(r20), as_float(r32), r21
R32 = DAG.getNode(ISDBITCAST, DL, OVT, R32);
R20 = DAG.getNode(ISD::FMUL, DL, OVT, R32, R21);
R20 = DAG.getNode(ISDBITCAST, DL, INTTY, R20);
// and r22, r20, 0x7FFFFFFF
SDValue R22 = DAG.getNode(ISD::AND, DL, INTTY, R20,
DAG.getConstant(0x7FFFFFFF, INTTY));
// and r23, r20, 0x80000000
SDValue R23 = DAG.getNode(ISD::AND, DL, INTTY, R20,
DAG.getConstant(0x80000000, INTTY));
// ishr r60, r22, 0x00000017
SDValue R60 = DAG.getNode(ISD::SRA, DL, INTTY, R22,
DAG.getConstant(0x00000017, INTTY));
// ishr r61, r30, 0x00000017
SDValue R61 = DAG.getNode(ISD::SRA, DL, INTTY, R30,
DAG.getConstant(0x00000017, INTTY));
// iadd r20, r20, r30
R20 = DAG.getNode(ISD::ADD, DL, INTTY, R20, R30);
// iadd r21, r22, r30
R21 = DAG.getNode(ISD::ADD, DL, INTTY, R22, R30);
// iadd r60, r60, r61
R60 = DAG.getNode(ISD::ADD, DL, INTTY, R60, R61);
// ige r42, 0, R60
R42 = DAG.getNode(AMDILISD::CMP, DL, INTTY,
DAG.getConstant(CondCCodeToCC(ISD::SETGE, MVT::i32), MVT::i32),
DAG.getConstant(0, INTTY),
R60);
// ior r41, r23, 0x7F800000
R41 = DAG.getNode(ISD::OR, DL, INTTY, R23,
DAG.getConstant(0x7F800000, INTTY));
// ige r40, r60, 0x000000FF
R40 = DAG.getNode(AMDILISD::CMP, DL, INTTY,
DAG.getConstant(CondCCodeToCC(ISD::SETGE, MVT::i32), MVT::i32),
R60,
DAG.getConstant(0x0000000FF, INTTY));
// cmov_logical r40, r50, 0, r40
R40 = DAG.getNode(AMDILISD::CMOVLOG, DL, INTTY, R50,
DAG.getConstant(0, INTTY),
R40);
// cmov_logical r20, r42, r23, r20
R20 = DAG.getNode(AMDILISD::CMOVLOG, DL, INTTY, R42, R23, R20);
// cmov_logical DST, r40, r41, r20
DST = DAG.getNode(AMDILISD::CMOVLOG, DL, INTTY, R40, R41, R20);
// as_float(DST)
DST = DAG.getNode(ISDBITCAST, DL, OVT, DST);
} else {
// The following sequence of DAG nodes produce the following IL:
// fabs r1, RHS
// lt r2, 0x1.0p+96f, r1
// cmov_logical r3, r2, 0x1.0p-23f, 1.0f
// mul_ieee r1, RHS, r3
// div_zeroop(infinity) r0, LHS, r1
// mul_ieee DST, r0, r3
// fabs r1, RHS
SDValue r1 = DAG.getNode(ISD::FABS, DL, OVT, RHS);
// lt r2, 0x1.0p+96f, r1
SDValue r2 = DAG.getNode(AMDILISD::CMP, DL, OVT,
DAG.getConstant(CondCCodeToCC(ISD::SETLT, MVT::f32), MVT::i32),
DAG.getConstant(0x6f800000, INTTY), r1);
// cmov_logical r3, r2, 0x1.0p-23f, 1.0f
SDValue r3 = DAG.getNode(AMDILISD::CMOVLOG, DL, OVT, r2,
DAG.getConstant(0x2f800000, INTTY),
DAG.getConstant(0x3f800000, INTTY));
// mul_ieee r1, RHS, r3
r1 = DAG.getNode(ISD::FMUL, DL, OVT, RHS, r3);
// div_zeroop(infinity) r0, LHS, r1
SDValue r0 = DAG.getNode(AMDILISD::DIV_INF, DL, OVT, LHS, r1);
// mul_ieee DST, r0, r3
DST = DAG.getNode(ISD::FMUL, DL, OVT, r0, r3);
}
return DST;
}
SDValue
AMDILTargetLowering::LowerFDIV64(SDValue Op, SelectionDAG &DAG) const
{
return SDValue(Op.getNode(), 0);
}