//===----------------------------------------------------------------------===//
#define DEBUG_TYPE "pic16-lower"
-
+#include "PIC16ABINames.h"
#include "PIC16ISelLowering.h"
+#include "PIC16TargetObjectFile.h"
#include "PIC16TargetMachine.h"
#include "llvm/DerivedTypes.h"
#include "llvm/GlobalValue.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
-#include <cstdio>
+#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
+static const char *getIntrinsicName(unsigned opcode) {
+ std::string Basename;
+ switch(opcode) {
+ default: llvm_unreachable("do not know intrinsic name");
+ // Arithmetic Right shift for integer types.
+ case PIC16ISD::SRA_I8: Basename = "sra.i8"; break;
+ case RTLIB::SRA_I16: Basename = "sra.i16"; break;
+ case RTLIB::SRA_I32: Basename = "sra.i32"; break;
+
+ // Left shift for integer types.
+ case PIC16ISD::SLL_I8: Basename = "sll.i8"; break;
+ case RTLIB::SHL_I16: Basename = "sll.i16"; break;
+ case RTLIB::SHL_I32: Basename = "sll.i32"; break;
+
+ // Logical Right Shift for integer types.
+ case PIC16ISD::SRL_I8: Basename = "srl.i8"; break;
+ case RTLIB::SRL_I16: Basename = "srl.i16"; break;
+ case RTLIB::SRL_I32: Basename = "srl.i32"; break;
+
+ // Multiply for integer types.
+ case PIC16ISD::MUL_I8: Basename = "mul.i8"; break;
+ case RTLIB::MUL_I16: Basename = "mul.i16"; break;
+ case RTLIB::MUL_I32: Basename = "mul.i32"; break;
+
+ // Signed division for integers.
+ case RTLIB::SDIV_I16: Basename = "sdiv.i16"; break;
+ case RTLIB::SDIV_I32: Basename = "sdiv.i32"; break;
+
+ // Unsigned division for integers.
+ case RTLIB::UDIV_I16: Basename = "udiv.i16"; break;
+ case RTLIB::UDIV_I32: Basename = "udiv.i32"; break;
+
+ // Signed Modulas for integers.
+ case RTLIB::SREM_I16: Basename = "srem.i16"; break;
+ case RTLIB::SREM_I32: Basename = "srem.i32"; break;
+
+ // Unsigned Modulas for integers.
+ case RTLIB::UREM_I16: Basename = "urem.i16"; break;
+ case RTLIB::UREM_I32: Basename = "urem.i32"; break;
+
+ //////////////////////
+ // LIBCALLS FOR FLOATS
+ //////////////////////
+
+ // Float to signed integrals
+ case RTLIB::FPTOSINT_F32_I8: Basename = "f32_to_si32"; break;
+ case RTLIB::FPTOSINT_F32_I16: Basename = "f32_to_si32"; break;
+ case RTLIB::FPTOSINT_F32_I32: Basename = "f32_to_si32"; break;
+
+ // Signed integrals to float. char and int are first sign extended to i32
+ // before being converted to float, so an I8_F32 or I16_F32 isn't required.
+ case RTLIB::SINTTOFP_I32_F32: Basename = "si32_to_f32"; break;
+
+ // Float to Unsigned conversions.
+ // Signed conversion can be used for unsigned conversion as well.
+ // In signed and unsigned versions only the interpretation of the
+ // MSB is different. Bit representation remains the same.
+ case RTLIB::FPTOUINT_F32_I8: Basename = "f32_to_si32"; break;
+ case RTLIB::FPTOUINT_F32_I16: Basename = "f32_to_si32"; break;
+ case RTLIB::FPTOUINT_F32_I32: Basename = "f32_to_si32"; break;
+
+ // Unsigned to Float conversions. char and int are first zero extended
+ // before being converted to float.
+ case RTLIB::UINTTOFP_I32_F32: Basename = "ui32_to_f32"; break;
+
+ // Floating point add, sub, mul, div.
+ case RTLIB::ADD_F32: Basename = "add.f32"; break;
+ case RTLIB::SUB_F32: Basename = "sub.f32"; break;
+ case RTLIB::MUL_F32: Basename = "mul.f32"; break;
+ case RTLIB::DIV_F32: Basename = "div.f32"; break;
+
+ // Floating point comparison
+ case RTLIB::O_F32: Basename = "unordered.f32"; break;
+ case RTLIB::UO_F32: Basename = "unordered.f32"; break;
+ case RTLIB::OLE_F32: Basename = "le.f32"; break;
+ case RTLIB::OGE_F32: Basename = "ge.f32"; break;
+ case RTLIB::OLT_F32: Basename = "lt.f32"; break;
+ case RTLIB::OGT_F32: Basename = "gt.f32"; break;
+ case RTLIB::OEQ_F32: Basename = "eq.f32"; break;
+ case RTLIB::UNE_F32: Basename = "neq.f32"; break;
+ }
+
+ std::string prefix = PAN::getTagName(PAN::PREFIX_SYMBOL);
+ std::string tagname = PAN::getTagName(PAN::LIBCALL);
+ std::string Fullname = prefix + tagname + Basename;
+
+ // The name has to live through program life.
+ return createESName(Fullname);
+}
+
+// getStdLibCallName - Get the name for the standard library function.
+static const char *getStdLibCallName(unsigned opcode) {
+ std::string BaseName;
+ switch(opcode) {
+ case RTLIB::COS_F32: BaseName = "cos";
+ break;
+ case RTLIB::SIN_F32: BaseName = "sin";
+ break;
+ case RTLIB::MEMCPY: BaseName = "memcpy";
+ break;
+ case RTLIB::MEMSET: BaseName = "memset";
+ break;
+ case RTLIB::MEMMOVE: BaseName = "memmove";
+ break;
+ default: llvm_unreachable("do not know std lib call name");
+ }
+ std::string prefix = PAN::getTagName(PAN::PREFIX_SYMBOL);
+ std::string LibCallName = prefix + BaseName;
+
+ // The name has to live through program life.
+ return createESName(LibCallName);
+}
// PIC16TargetLowering Constructor.
PIC16TargetLowering::PIC16TargetLowering(PIC16TargetMachine &TM)
- : TargetLowering(TM), TmpSize(0) {
-
+ : TargetLowering(TM, new PIC16TargetObjectFile()), TmpSize(0) {
+
Subtarget = &TM.getSubtarget<PIC16Subtarget>();
addRegisterClass(MVT::i8, PIC16::GPRRegisterClass);
setShiftAmountType(MVT::i8);
- setShiftAmountFlavor(Extend);
+
+ // Std lib call names
+ setLibcallName(RTLIB::COS_F32, getStdLibCallName(RTLIB::COS_F32));
+ setLibcallName(RTLIB::SIN_F32, getStdLibCallName(RTLIB::SIN_F32));
+ setLibcallName(RTLIB::MEMCPY, getStdLibCallName(RTLIB::MEMCPY));
+ setLibcallName(RTLIB::MEMSET, getStdLibCallName(RTLIB::MEMSET));
+ setLibcallName(RTLIB::MEMMOVE, getStdLibCallName(RTLIB::MEMMOVE));
// SRA library call names
- setPIC16LibcallName(PIC16ISD::SRA_I8, "__intrinsics.sra.i8");
- setLibcallName(RTLIB::SRA_I16, "__intrinsics.sra.i16");
- setLibcallName(RTLIB::SRA_I32, "__intrinsics.sra.i32");
+ setPIC16LibcallName(PIC16ISD::SRA_I8, getIntrinsicName(PIC16ISD::SRA_I8));
+ setLibcallName(RTLIB::SRA_I16, getIntrinsicName(RTLIB::SRA_I16));
+ setLibcallName(RTLIB::SRA_I32, getIntrinsicName(RTLIB::SRA_I32));
// SHL library call names
- setPIC16LibcallName(PIC16ISD::SLL_I8, "__intrinsics.sll.i8");
- setLibcallName(RTLIB::SHL_I16, "__intrinsics.sll.i16");
- setLibcallName(RTLIB::SHL_I32, "__intrinsics.sll.i32");
+ setPIC16LibcallName(PIC16ISD::SLL_I8, getIntrinsicName(PIC16ISD::SLL_I8));
+ setLibcallName(RTLIB::SHL_I16, getIntrinsicName(RTLIB::SHL_I16));
+ setLibcallName(RTLIB::SHL_I32, getIntrinsicName(RTLIB::SHL_I32));
// SRL library call names
- setPIC16LibcallName(PIC16ISD::SRL_I8, "__intrinsics.srl.i8");
- setLibcallName(RTLIB::SRL_I16, "__intrinsics.srl.i16");
- setLibcallName(RTLIB::SRL_I32, "__intrinsics.srl.i32");
+ setPIC16LibcallName(PIC16ISD::SRL_I8, getIntrinsicName(PIC16ISD::SRL_I8));
+ setLibcallName(RTLIB::SRL_I16, getIntrinsicName(RTLIB::SRL_I16));
+ setLibcallName(RTLIB::SRL_I32, getIntrinsicName(RTLIB::SRL_I32));
// MUL Library call names
- setPIC16LibcallName(PIC16ISD::MUL_I8, "__intrinsics.mul.i8");
- setLibcallName(RTLIB::MUL_I16, "__intrinsics.mul.i16");
- setLibcallName(RTLIB::MUL_I32, "__intrinsics.mul.i32");
+ setPIC16LibcallName(PIC16ISD::MUL_I8, getIntrinsicName(PIC16ISD::MUL_I8));
+ setLibcallName(RTLIB::MUL_I16, getIntrinsicName(RTLIB::MUL_I16));
+ setLibcallName(RTLIB::MUL_I32, getIntrinsicName(RTLIB::MUL_I32));
+
+ // Signed division lib call names
+ setLibcallName(RTLIB::SDIV_I16, getIntrinsicName(RTLIB::SDIV_I16));
+ setLibcallName(RTLIB::SDIV_I32, getIntrinsicName(RTLIB::SDIV_I32));
+
+ // Unsigned division lib call names
+ setLibcallName(RTLIB::UDIV_I16, getIntrinsicName(RTLIB::UDIV_I16));
+ setLibcallName(RTLIB::UDIV_I32, getIntrinsicName(RTLIB::UDIV_I32));
+
+ // Signed remainder lib call names
+ setLibcallName(RTLIB::SREM_I16, getIntrinsicName(RTLIB::SREM_I16));
+ setLibcallName(RTLIB::SREM_I32, getIntrinsicName(RTLIB::SREM_I32));
+
+ // Unsigned remainder lib call names
+ setLibcallName(RTLIB::UREM_I16, getIntrinsicName(RTLIB::UREM_I16));
+ setLibcallName(RTLIB::UREM_I32, getIntrinsicName(RTLIB::UREM_I32));
+
+ // Floating point to signed int conversions.
+ setLibcallName(RTLIB::FPTOSINT_F32_I8,
+ getIntrinsicName(RTLIB::FPTOSINT_F32_I8));
+ setLibcallName(RTLIB::FPTOSINT_F32_I16,
+ getIntrinsicName(RTLIB::FPTOSINT_F32_I16));
+ setLibcallName(RTLIB::FPTOSINT_F32_I32,
+ getIntrinsicName(RTLIB::FPTOSINT_F32_I32));
+
+ // Signed int to floats.
+ setLibcallName(RTLIB::SINTTOFP_I32_F32,
+ getIntrinsicName(RTLIB::SINTTOFP_I32_F32));
+
+ // Floating points to unsigned ints.
+ setLibcallName(RTLIB::FPTOUINT_F32_I8,
+ getIntrinsicName(RTLIB::FPTOUINT_F32_I8));
+ setLibcallName(RTLIB::FPTOUINT_F32_I16,
+ getIntrinsicName(RTLIB::FPTOUINT_F32_I16));
+ setLibcallName(RTLIB::FPTOUINT_F32_I32,
+ getIntrinsicName(RTLIB::FPTOUINT_F32_I32));
+
+ // Unsigned int to floats.
+ setLibcallName(RTLIB::UINTTOFP_I32_F32,
+ getIntrinsicName(RTLIB::UINTTOFP_I32_F32));
+
+ // Floating point add, sub, mul ,div.
+ setLibcallName(RTLIB::ADD_F32, getIntrinsicName(RTLIB::ADD_F32));
+ setLibcallName(RTLIB::SUB_F32, getIntrinsicName(RTLIB::SUB_F32));
+ setLibcallName(RTLIB::MUL_F32, getIntrinsicName(RTLIB::MUL_F32));
+ setLibcallName(RTLIB::DIV_F32, getIntrinsicName(RTLIB::DIV_F32));
+
+ // Floationg point comparison
+ setLibcallName(RTLIB::UO_F32, getIntrinsicName(RTLIB::UO_F32));
+ setLibcallName(RTLIB::OLE_F32, getIntrinsicName(RTLIB::OLE_F32));
+ setLibcallName(RTLIB::OGE_F32, getIntrinsicName(RTLIB::OGE_F32));
+ setLibcallName(RTLIB::OLT_F32, getIntrinsicName(RTLIB::OLT_F32));
+ setLibcallName(RTLIB::OGT_F32, getIntrinsicName(RTLIB::OGT_F32));
+ setLibcallName(RTLIB::OEQ_F32, getIntrinsicName(RTLIB::OEQ_F32));
+ setLibcallName(RTLIB::UNE_F32, getIntrinsicName(RTLIB::UNE_F32));
+
+ // Return value comparisons of floating point calls.
+ setCmpLibcallCC(RTLIB::OEQ_F32, ISD::SETNE);
+ setCmpLibcallCC(RTLIB::UNE_F32, ISD::SETNE);
+ setCmpLibcallCC(RTLIB::OLT_F32, ISD::SETNE);
+ setCmpLibcallCC(RTLIB::OLE_F32, ISD::SETNE);
+ setCmpLibcallCC(RTLIB::OGE_F32, ISD::SETNE);
+ setCmpLibcallCC(RTLIB::OGT_F32, ISD::SETNE);
+ setCmpLibcallCC(RTLIB::UO_F32, ISD::SETNE);
+ setCmpLibcallCC(RTLIB::O_F32, ISD::SETEQ);
setOperationAction(ISD::GlobalAddress, MVT::i16, Custom);
setOperationAction(ISD::ExternalSymbol, MVT::i16, Custom);
setOperationAction(ISD::STORE, MVT::i8, Legal);
setOperationAction(ISD::STORE, MVT::i16, Custom);
setOperationAction(ISD::STORE, MVT::i32, Custom);
+ setOperationAction(ISD::STORE, MVT::i64, Custom);
setOperationAction(ISD::ADDE, MVT::i8, Custom);
setOperationAction(ISD::ADDC, MVT::i8, Custom);
setOperationAction(ISD::SUBE, MVT::i8, Custom);
setOperationAction(ISD::SUBC, MVT::i8, Custom);
+ setOperationAction(ISD::SUB, MVT::i8, Custom);
setOperationAction(ISD::ADD, MVT::i8, Custom);
setOperationAction(ISD::ADD, MVT::i16, Custom);
setOperationAction(ISD::XOR, MVT::i8, Custom);
setOperationAction(ISD::FrameIndex, MVT::i16, Custom);
- setOperationAction(ISD::CALL, MVT::i16, Custom);
- setOperationAction(ISD::RET, MVT::Other, Custom);
- setOperationAction(ISD::MUL, MVT::i8, Custom);
- setOperationAction(ISD::MUL, MVT::i16, Expand);
- setOperationAction(ISD::MUL, MVT::i32, Expand);
+ setOperationAction(ISD::MUL, MVT::i8, Custom);
setOperationAction(ISD::SMUL_LOHI, MVT::i8, Expand);
- setOperationAction(ISD::SMUL_LOHI, MVT::i16, Expand);
- setOperationAction(ISD::SMUL_LOHI, MVT::i32, Expand);
setOperationAction(ISD::UMUL_LOHI, MVT::i8, Expand);
- setOperationAction(ISD::UMUL_LOHI, MVT::i16, Expand);
- setOperationAction(ISD::UMUL_LOHI, MVT::i32, Expand);
setOperationAction(ISD::MULHU, MVT::i8, Expand);
- setOperationAction(ISD::MULHU, MVT::i16, Expand);
- setOperationAction(ISD::MULHU, MVT::i32, Expand);
setOperationAction(ISD::MULHS, MVT::i8, Expand);
- setOperationAction(ISD::MULHS, MVT::i16, Expand);
- setOperationAction(ISD::MULHS, MVT::i32, Expand);
setOperationAction(ISD::SRA, MVT::i8, Custom);
- setOperationAction(ISD::SRA, MVT::i16, Expand);
- setOperationAction(ISD::SRA, MVT::i32, Expand);
setOperationAction(ISD::SHL, MVT::i8, Custom);
- setOperationAction(ISD::SHL, MVT::i16, Expand);
- setOperationAction(ISD::SHL, MVT::i32, Expand);
setOperationAction(ISD::SRL, MVT::i8, Custom);
- setOperationAction(ISD::SRL, MVT::i16, Expand);
- setOperationAction(ISD::SRL, MVT::i32, Expand);
+
+ setOperationAction(ISD::ROTL, MVT::i8, Expand);
+ setOperationAction(ISD::ROTR, MVT::i8, Expand);
+
+ setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1, Expand);
// PIC16 does not support shift parts
- setOperationAction(ISD::SRA_PARTS, MVT::i8, Expand);
- setOperationAction(ISD::SRA_PARTS, MVT::i16, Expand);
- setOperationAction(ISD::SRA_PARTS, MVT::i32, Expand);
+ setOperationAction(ISD::SRA_PARTS, MVT::i8, Expand);
setOperationAction(ISD::SHL_PARTS, MVT::i8, Expand);
- setOperationAction(ISD::SHL_PARTS, MVT::i16, Expand);
- setOperationAction(ISD::SHL_PARTS, MVT::i32, Expand);
setOperationAction(ISD::SRL_PARTS, MVT::i8, Expand);
- setOperationAction(ISD::SRL_PARTS, MVT::i16, Expand);
- setOperationAction(ISD::SRL_PARTS, MVT::i32, Expand);
// PIC16 does not have a SETCC, expand it to SELECT_CC.
return Flag;
}
// Get the TmpOffset for FrameIndex
-unsigned PIC16TargetLowering::GetTmpOffsetForFI(unsigned FI) {
+unsigned PIC16TargetLowering::GetTmpOffsetForFI(unsigned FI, unsigned size) {
std::map<unsigned, unsigned>::iterator
MapIt = FiTmpOffsetMap.find(FI);
if (MapIt != FiTmpOffsetMap.end())
// This FI (FrameIndex) is not yet mapped, so map it
FiTmpOffsetMap[FI] = TmpSize;
- return TmpSize++;
+ TmpSize += size;
+ return FiTmpOffsetMap[FI];
}
// To extract chain value from the SDValue Nodes
Results.push_back(N);
}
-MVT PIC16TargetLowering::getSetCCResultType(MVT ValType) const {
+MVT::SimpleValueType
+PIC16TargetLowering::getSetCCResultType(EVT ValType) const {
return MVT::i8;
}
SDValue
PIC16TargetLowering::MakePIC16Libcall(PIC16ISD::PIC16Libcall Call,
- MVT RetVT, const SDValue *Ops,
+ EVT RetVT, const SDValue *Ops,
unsigned NumOps, bool isSigned,
SelectionDAG &DAG, DebugLoc dl) {
TargetLowering::ArgListEntry Entry;
for (unsigned i = 0; i != NumOps; ++i) {
Entry.Node = Ops[i];
- Entry.Ty = Entry.Node.getValueType().getTypeForMVT();
+ Entry.Ty = Entry.Node.getValueType().getTypeForEVT(*DAG.getContext());
Entry.isSExt = isSigned;
Entry.isZExt = !isSigned;
Args.push_back(Entry);
}
- SDValue Callee = DAG.getExternalSymbol(getPIC16LibcallName(Call), MVT::i8);
- const Type *RetTy = RetVT.getTypeForMVT();
+ SDValue Callee = DAG.getExternalSymbol(getPIC16LibcallName(Call), MVT::i16);
+
+ const Type *RetTy = RetVT.getTypeForEVT(*DAG.getContext());
std::pair<SDValue,SDValue> CallInfo =
LowerCallTo(DAG.getEntryNode(), RetTy, isSigned, !isSigned, false,
- false, CallingConv::C, false, Callee, Args, DAG, dl);
+ false, 0, CallingConv::C, false,
+ /*isReturnValueUsed=*/true,
+ Callee, Args, DAG, dl);
return CallInfo.first;
}
case PIC16ISD::SUBCC: return "PIC16ISD::SUBCC";
case PIC16ISD::SELECT_ICC: return "PIC16ISD::SELECT_ICC";
case PIC16ISD::BRCOND: return "PIC16ISD::BRCOND";
+ case PIC16ISD::RET: return "PIC16ISD::RET";
case PIC16ISD::Dummy: return "PIC16ISD::Dummy";
}
}
FrameIndexSDNode *FR = dyn_cast<FrameIndexSDNode>(SDValue(N,0));
// FIXME there isn't really debug info here
DebugLoc dl = FR->getDebugLoc();
- int Index = FR->getIndex();
- SDValue FI[2];
- FI[0] = DAG.getTargetFrameIndex(Index, MVT::i8);
- FI[1] = DAG.getTargetFrameIndex(Index + 1, MVT::i8);
- return DAG.getNode(ISD::BUILD_PAIR, dl, N->getValueType(0), FI[0], FI[1]);
+ // Expand FrameIndex like GlobalAddress and ExternalSymbol
+ // Also use Offset field for lo and hi parts. The default
+ // offset is zero.
+
+ SDValue ES;
+ int FrameOffset;
+ SDValue FI = SDValue(N,0);
+ LegalizeFrameIndex(FI, DAG, ES, FrameOffset);
+ SDValue Offset = DAG.getConstant(FrameOffset, MVT::i8);
+ SDValue Lo = DAG.getNode(PIC16ISD::Lo, dl, MVT::i8, ES, Offset);
+ SDValue Hi = DAG.getNode(PIC16ISD::Hi, dl, MVT::i8, ES, Offset);
+ return DAG.getNode(ISD::BUILD_PAIR, dl, N->getValueType(0), Lo, Hi);
}
SDValue Chain = St->getChain();
SDValue Src = St->getValue();
SDValue Ptr = St->getBasePtr();
- MVT ValueType = Src.getValueType();
+ EVT ValueType = Src.getValueType();
unsigned StoreOffset = 0;
DebugLoc dl = N->getDebugLoc();
SDValue SrcLo, SrcHi;
GetExpandedParts(Src, DAG, SrcLo, SrcHi);
SDValue ChainLo = Chain, ChainHi = Chain;
+ // FIXME: This makes unsafe assumptions. The Chain may be a TokenFactor
+ // created for an unrelated purpose, in which case it may not have
+ // exactly two operands. Also, even if it does have two operands, they
+ // may not be the low and high parts of an aligned load that was split.
if (Chain.getOpcode() == ISD::TokenFactor) {
ChainLo = Chain.getOperand(0);
ChainHi = Chain.getOperand(1);
GetExpandedParts(SrcHi, DAG, SrcHi1, SrcHi2);
SDValue ChainLo = Chain, ChainHi = Chain;
+ // FIXME: This makes unsafe assumptions; see the FIXME above.
if (Chain.getOpcode() == ISD::TokenFactor) {
ChainLo = Chain.getOperand(0);
ChainHi = Chain.getOperand(1);
}
SDValue ChainLo1 = ChainLo, ChainLo2 = ChainLo, ChainHi1 = ChainHi,
ChainHi2 = ChainHi;
+ // FIXME: This makes unsafe assumptions; see the FIXME above.
if (ChainLo.getOpcode() == ISD::TokenFactor) {
ChainLo1 = ChainLo.getOperand(0);
ChainLo2 = ChainLo.getOperand(1);
}
+ // FIXME: This makes unsafe assumptions; see the FIXME above.
if (ChainHi.getOpcode() == ISD::TokenFactor) {
ChainHi1 = ChainHi.getOperand(0);
ChainHi2 = ChainHi.getOperand(1);
getChain(Store3), getChain(Store4));
return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, RetLo, RetHi);
- }
- else {
+ } else if (ValueType == MVT::i64) {
+ SDValue SrcLo, SrcHi;
+ GetExpandedParts(Src, DAG, SrcLo, SrcHi);
+ SDValue ChainLo = Chain, ChainHi = Chain;
+ // FIXME: This makes unsafe assumptions; see the FIXME above.
+ if (Chain.getOpcode() == ISD::TokenFactor) {
+ ChainLo = Chain.getOperand(0);
+ ChainHi = Chain.getOperand(1);
+ }
+ SDValue Store1 = DAG.getStore(ChainLo, dl, SrcLo, Ptr, NULL,
+ 0 + StoreOffset);
+
+ Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr,
+ DAG.getConstant(4, Ptr.getValueType()));
+ SDValue Store2 = DAG.getStore(ChainHi, dl, SrcHi, Ptr, NULL,
+ 1 + StoreOffset);
+
+ return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Store1,
+ Store2);
+ } else {
assert (0 && "value type not supported");
return SDValue();
}
DebugLoc dl = ES->getDebugLoc();
SDValue TES = DAG.getTargetExternalSymbol(ES->getSymbol(), MVT::i8);
-
- SDValue Lo = DAG.getNode(PIC16ISD::Lo, dl, MVT::i8, TES);
- SDValue Hi = DAG.getNode(PIC16ISD::Hi, dl, MVT::i8, TES);
+ SDValue Offset = DAG.getConstant(0, MVT::i8);
+ SDValue Lo = DAG.getNode(PIC16ISD::Lo, dl, MVT::i8, TES, Offset);
+ SDValue Hi = DAG.getNode(PIC16ISD::Hi, dl, MVT::i8, TES, Offset);
return DAG.getNode(ISD::BUILD_PAIR, dl, MVT::i16, Lo, Hi);
}
SDValue TGA = DAG.getTargetGlobalAddress(G->getGlobal(), MVT::i8,
G->getOffset());
- SDValue Lo = DAG.getNode(PIC16ISD::Lo, dl, MVT::i8, TGA);
- SDValue Hi = DAG.getNode(PIC16ISD::Hi, dl, MVT::i8, TGA);
+ SDValue Offset = DAG.getConstant(0, MVT::i8);
+ SDValue Lo = DAG.getNode(PIC16ISD::Lo, dl, MVT::i8, TGA, Offset);
+ SDValue Hi = DAG.getNode(PIC16ISD::Hi, dl, MVT::i8, TGA, Offset);
return DAG.getNode(ISD::BUILD_PAIR, dl, MVT::i16, Lo, Hi);
}
// It is BUILD_PAIR((PIC16Lo TGA), (PIC16Hi TGA)) and Op is BUILD_PAIR
SDValue TGA = Op.getOperand(0).getOperand(0);
GlobalAddressSDNode *GSDN = dyn_cast<GlobalAddressSDNode>(TGA);
- const Type *ValueType = GSDN->getGlobal()->getType();
-
- if (!isa<PointerType>(ValueType)) {
- assert(0 && "TGA must be of a PointerType");
- }
- int AddrSpace = dyn_cast<PointerType>(ValueType)->getAddressSpace();
- if (AddrSpace == PIC16ISD::ROM_SPACE)
+ if (GSDN->getAddressSpace() == PIC16ISD::ROM_SPACE)
return true;
// Any other address space return it false
SDValue &Lo, SDValue &Hi) {
SDNode *N = Op.getNode();
DebugLoc dl = N->getDebugLoc();
- MVT NewVT = getTypeToTransformTo(N->getValueType(0));
+ EVT NewVT = getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
// Extract the lo component.
Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NewVT, Op,
DAG.getConstant(0, MVT::i8));
-
+
// extract the hi component
Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NewVT, Op,
DAG.getConstant(1, MVT::i8));
MachineFrameInfo *MFI = MF.getFrameInfo();
const std::string Name = Func->getName();
- char *tmpName = new char [strlen(Name.c_str()) + 8];
- sprintf(tmpName, "%s.frame", Name.c_str());
- ES = DAG.getTargetExternalSymbol(tmpName, MVT::i8);
FrameIndexSDNode *FR = dyn_cast<FrameIndexSDNode>(Op);
// FrameIndices are not stack offsets. But they represent the request
// with, we need to traverse all the FrameIndices available earlier in
// the list and add their requested size.
unsigned FIndex = FR->getIndex();
- Offset = 0;
- for (unsigned i=0; i<FIndex ; ++i) {
- Offset += MFI->getObjectSize(i);
+ const char *tmpName;
+ if (FIndex < ReservedFrameCount) {
+ tmpName = createESName(PAN::getFrameLabel(Name));
+ ES = DAG.getTargetExternalSymbol(tmpName, MVT::i8);
+ Offset = 0;
+ for (unsigned i=0; i<FIndex ; ++i) {
+ Offset += MFI->getObjectSize(i);
+ }
+ } else {
+ // FrameIndex has been made for some temporary storage
+ tmpName = createESName(PAN::getTempdataLabel(Name));
+ ES = DAG.getTargetExternalSymbol(tmpName, MVT::i8);
+ Offset = GetTmpOffsetForFI(FIndex, MFI->getObjectSize(FIndex));
}
return;
if (Ptr.getOpcode() == ISD::ADD) {
SDValue OperLeft = Ptr.getOperand(0);
SDValue OperRight = Ptr.getOperand(1);
- if (OperLeft.getOpcode() == ISD::Constant) {
+ if ((OperLeft.getOpcode() == ISD::Constant) &&
+ (dyn_cast<ConstantSDNode>(OperLeft)->getZExtValue() < 32 )) {
Offset = dyn_cast<ConstantSDNode>(OperLeft)->getZExtValue();
Ptr = OperRight;
- } else if (OperRight.getOpcode() == ISD::Constant) {
+ } else if ((OperRight.getOpcode() == ISD::Constant) &&
+ (dyn_cast<ConstantSDNode>(OperRight)->getZExtValue() < 32 )){
Offset = dyn_cast<ConstantSDNode>(OperRight)->getZExtValue();
Ptr = OperLeft;
}
}
}
- if (Ptr.getOpcode() == ISD::BUILD_PAIR &&
- Ptr.getOperand(0).getOpcode() == ISD::TargetFrameIndex) {
-
- int FrameOffset;
- LegalizeFrameIndex(Ptr.getOperand(0), DAG, Lo, FrameOffset);
- Hi = DAG.getConstant(1, MVT::i8);
- Offset += FrameOffset;
- return;
+ // Expansion of FrameIndex has Lo/Hi parts
+ if (isDirectAddress(Ptr)) {
+ SDValue TFI = Ptr.getOperand(0).getOperand(0);
+ int FrameOffset;
+ if (TFI.getOpcode() == ISD::TargetFrameIndex) {
+ LegalizeFrameIndex(TFI, DAG, Lo, FrameOffset);
+ Hi = DAG.getConstant(1, MVT::i8);
+ Offset += FrameOffset;
+ return;
+ } else if (TFI.getOpcode() == ISD::TargetExternalSymbol) {
+ // FrameIndex has already been expanded.
+ // Now just make use of its expansion
+ Lo = TFI;
+ Hi = DAG.getConstant(1, MVT::i8);
+ SDValue FOffset = Ptr.getOperand(0).getOperand(1);
+ assert (FOffset.getOpcode() == ISD::Constant &&
+ "Invalid operand of PIC16ISD::Lo");
+ Offset += dyn_cast<ConstantSDNode>(FOffset)->getZExtValue();
+ return;
+ }
}
if (isDirectAddress(Ptr) && !isRomAddress(Ptr)) {
SDValue Load, Offset;
SDVTList Tys;
- MVT VT, NewVT;
+ EVT VT, NewVT;
SDValue PtrLo, PtrHi;
unsigned LoadOffset;
unsigned NumLoads = VT.getSizeInBits() / 8;
std::vector<SDValue> PICLoads;
unsigned iter;
- MVT MemVT = LD->getMemoryVT();
+ EVT MemVT = LD->getMemoryVT();
if(ISD::isNON_EXTLoad(N)) {
for (iter=0; iter<NumLoads ; ++iter) {
// Add the pointer offset if any
// For extended loads this is the memory value type
// i.e. without any extension
- MVT MemVT = LD->getMemoryVT();
+ EVT MemVT = LD->getMemoryVT();
unsigned MemBytes = MemVT.getSizeInBits() / 8;
+ // if MVT::i1 is extended to MVT::i8 then MemBytes will be zero
+ // So set it to one
+ if (MemBytes == 0) MemBytes = 1;
+
unsigned ExtdBytes = VT.getSizeInBits() / 8;
Offset = DAG.getConstant(LoadOffset, MVT::i8);
Tys = DAG.getVTList(MVT::i8, MVT::Other);
// For MemBytes generate PIC16Load with proper offset
- for (iter=0; iter<MemBytes; ++iter) {
+ for (iter=0; iter < MemBytes; ++iter) {
// Add the pointer offset if any
Offset = DAG.getConstant(iter + LoadOffset, MVT::i8);
Load = DAG.getNode(PIC16ISD::PIC16Load, dl, Tys, Chain, PtrLo, PtrHi,
for (iter=MemBytes; iter<ExtdBytes; ++iter) {
PICLoads.push_back(SRA);
}
- } else if (ISD::isZEXTLoad(N)) {
+ } else if (ISD::isZEXTLoad(N) || ISD::isEXTLoad(N)) {
+ //} else if (ISD::isZEXTLoad(N)) {
// ZeroExtendedLoad -- For all ExtdBytes use constant 0
SDValue ConstZero = DAG.getConstant(0, MVT::i8);
for (iter=MemBytes; iter<ExtdBytes; ++iter) {
return Call;
}
+SDValue PIC16TargetLowering::LowerMUL(SDValue Op, SelectionDAG &DAG) {
+ // We should have handled larger operands in type legalizer itself.
+ assert (Op.getValueType() == MVT::i8 && "illegal multiply to lower");
+
+ SDNode *N = Op.getNode();
+ SmallVector<SDValue, 2> Ops(2);
+ Ops[0] = N->getOperand(0);
+ Ops[1] = N->getOperand(1);
+ SDValue Call = MakePIC16Libcall(PIC16ISD::MUL_I8, N->getValueType(0),
+ &Ops[0], 2, true, DAG, N->getDebugLoc());
+ return Call;
+}
+
void
PIC16TargetLowering::LowerOperationWrapper(SDNode *N,
SmallVectorImpl<SDValue>&Results,
SDValue Res;
unsigned i;
switch (Op.getOpcode()) {
- case ISD::FORMAL_ARGUMENTS:
- Res = LowerFORMAL_ARGUMENTS(Op, DAG); break;
case ISD::LOAD:
Res = ExpandLoad(Op.getNode(), DAG); break;
- case ISD::CALL:
- Res = LowerCALL(Op, DAG); break;
default: {
// All other operations are handled in LowerOperation.
Res = LowerOperation(Op, DAG);
SDValue PIC16TargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) {
switch (Op.getOpcode()) {
- case ISD::FORMAL_ARGUMENTS:
- return LowerFORMAL_ARGUMENTS(Op, DAG);
case ISD::ADD:
case ISD::ADDC:
case ISD::ADDE:
return ExpandLoad(Op.getNode(), DAG);
case ISD::STORE:
return ExpandStore(Op.getNode(), DAG);
+ case ISD::MUL:
+ return LowerMUL(Op, DAG);
case ISD::SHL:
case ISD::SRA:
case ISD::SRL:
case ISD::AND:
case ISD::XOR:
return LowerBinOp(Op, DAG);
- case ISD::CALL:
- return LowerCALL(Op, DAG);
- case ISD::RET:
- return LowerRET(Op, DAG);
case ISD::BR_CC:
return LowerBR_CC(Op, DAG);
case ISD::SELECT_CC:
const Function *Func = MF.getFunction();
const std::string FuncName = Func->getName();
- char *tmpName = new char [strlen(FuncName.c_str()) + 8];
// Put the value on stack.
// Get a stack slot index and convert to es.
int FI = MF.getFrameInfo()->CreateStackObject(1, 1);
- sprintf(tmpName, "%s.tmp", FuncName.c_str());
+ const char *tmpName = createESName(PAN::getTempdataLabel(FuncName));
SDValue ES = DAG.getTargetExternalSymbol(tmpName, MVT::i8);
// Store the value to ES.
DAG.getEntryNode(),
Op, ES,
DAG.getConstant (1, MVT::i8), // Banksel.
- DAG.getConstant (GetTmpOffsetForFI(FI),
+ DAG.getConstant (GetTmpOffsetForFI(FI, 1),
MVT::i8));
// Load the value from ES.
SDVTList Tys = DAG.getVTList(MVT::i8, MVT::Other);
SDValue Load = DAG.getNode(PIC16ISD::PIC16Load, dl, Tys, Store,
ES, DAG.getConstant (1, MVT::i8),
- DAG.getConstant (GetTmpOffsetForFI(FI),
+ DAG.getConstant (GetTmpOffsetForFI(FI, 1),
MVT::i8));
return Load.getValue(0);
}
SDValue PIC16TargetLowering::
-LowerIndirectCallArguments(SDValue Op, SDValue Chain, SDValue InFlag,
+LowerIndirectCallArguments(SDValue Chain, SDValue InFlag,
SDValue DataAddr_Lo, SDValue DataAddr_Hi,
- SelectionDAG &DAG) {
- CallSDNode *TheCall = dyn_cast<CallSDNode>(Op);
- unsigned NumOps = TheCall->getNumArgs();
- DebugLoc dl = TheCall->getDebugLoc();
+ const SmallVectorImpl<ISD::OutputArg> &Outs,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ DebugLoc dl, SelectionDAG &DAG) {
+ unsigned NumOps = Outs.size();
// If call has no arguments then do nothing and return.
if (NumOps == 0)
std::vector<SDValue> Ops;
SDVTList Tys = DAG.getVTList(MVT::Other, MVT::Flag);
SDValue Arg, StoreRet;
- for (unsigned i=0; i<NumOps; i++) {
+
+ // For PIC16 ABI the arguments come after the return value.
+ unsigned RetVals = Ins.size();
+ for (unsigned i = 0, ArgOffset = RetVals; i < NumOps; i++) {
// Get the arguments
- Arg = TheCall->getArg(i);
+ Arg = Outs[i].Val;
+
Ops.clear();
Ops.push_back(Chain);
Ops.push_back(Arg);
Ops.push_back(DataAddr_Lo);
Ops.push_back(DataAddr_Hi);
- Ops.push_back(DAG.getConstant(i, MVT::i8));
+ Ops.push_back(DAG.getConstant(ArgOffset, MVT::i8));
Ops.push_back(InFlag);
StoreRet = DAG.getNode (PIC16ISD::PIC16StWF, dl, Tys, &Ops[0], Ops.size());
Chain = getChain(StoreRet);
InFlag = getOutFlag(StoreRet);
+ ArgOffset++;
}
return Chain;
}
-
+
SDValue PIC16TargetLowering::
-LowerDirectCallArguments(SDValue Op, SDValue Chain, SDValue FrameAddress,
- SDValue InFlag, SelectionDAG &DAG) {
- CallSDNode *TheCall = dyn_cast<CallSDNode>(Op);
- unsigned NumOps = TheCall->getNumArgs();
- DebugLoc dl = TheCall->getDebugLoc();
+LowerDirectCallArguments(SDValue ArgLabel, SDValue Chain, SDValue InFlag,
+ const SmallVectorImpl<ISD::OutputArg> &Outs,
+ DebugLoc dl, SelectionDAG &DAG) {
+ unsigned NumOps = Outs.size();
std::string Name;
SDValue Arg, StoreAt;
- MVT ArgVT;
+ EVT ArgVT;
unsigned Size=0;
- unsigned ArgCount=0;
// If call has no arguments then do nothing and return.
if (NumOps == 0)
SDValue PtrLo, PtrHi;
unsigned AddressOffset;
int StoreOffset = 0;
- LegalizeAddress(FrameAddress, DAG, PtrLo, PtrHi, AddressOffset, dl);
+ LegalizeAddress(ArgLabel, DAG, PtrLo, PtrHi, AddressOffset, dl);
SDValue StoreRet;
std::vector<SDValue> Ops;
SDVTList Tys = DAG.getVTList(MVT::Other, MVT::Flag);
- for (unsigned i=ArgCount, Offset = 0; i<NumOps; i++) {
+ for (unsigned i=0, Offset = 0; i<NumOps; i++) {
// Get the argument
- Arg = TheCall->getArg(i);
-
+ Arg = Outs[i].Val;
StoreOffset = (Offset + AddressOffset);
// Store the argument on frame
Ops.clear();
Ops.push_back(Chain);
- Ops.push_back(Arg.getValue(0));
+ Ops.push_back(Arg);
Ops.push_back(PtrLo);
Ops.push_back(PtrHi);
Ops.push_back(DAG.getConstant(StoreOffset, MVT::i8));
}
SDValue PIC16TargetLowering::
-LowerIndirectCallReturn (SDValue Op, SDValue Chain, SDValue InFlag,
- SDValue DataAddr_Lo, SDValue DataAddr_Hi,
- SelectionDAG &DAG) {
- CallSDNode *TheCall = dyn_cast<CallSDNode>(Op);
- DebugLoc dl = TheCall->getDebugLoc();
- unsigned RetVals = TheCall->getNumRetVals();
+LowerIndirectCallReturn(SDValue Chain, SDValue InFlag,
+ SDValue DataAddr_Lo, SDValue DataAddr_Hi,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ DebugLoc dl, SelectionDAG &DAG,
+ SmallVectorImpl<SDValue> &InVals) {
+ unsigned RetVals = Ins.size();
// If call does not have anything to return
// then do nothing and go back.
return Chain;
// Call has something to return
- std::vector<SDValue> ResultVals;
SDValue LoadRet;
SDVTList Tys = DAG.getVTList(MVT::i8, MVT::Other, MVT::Flag);
InFlag);
InFlag = getOutFlag(LoadRet);
Chain = getChain(LoadRet);
- ResultVals.push_back(LoadRet);
+ InVals.push_back(LoadRet);
}
- ResultVals.push_back(Chain);
- SDValue Res = DAG.getMergeValues(&ResultVals[0], ResultVals.size(), dl);
- return Res;
+ return Chain;
}
SDValue PIC16TargetLowering::
-LowerDirectCallReturn(SDValue Op, SDValue Chain, SDValue FrameAddress,
- SDValue InFlag, SelectionDAG &DAG) {
- CallSDNode *TheCall = dyn_cast<CallSDNode>(Op);
- DebugLoc dl = TheCall->getDebugLoc();
+LowerDirectCallReturn(SDValue RetLabel, SDValue Chain, SDValue InFlag,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ DebugLoc dl, SelectionDAG &DAG,
+ SmallVectorImpl<SDValue> &InVals) {
+
// Currently handling primitive types only. They will come in
// i8 parts
- unsigned RetVals = TheCall->getNumRetVals();
-
- std::vector<SDValue> ResultVals;
+ unsigned RetVals = Ins.size();
// Return immediately if the return type is void
if (RetVals == 0)
// Legalize the address before use
SDValue LdLo, LdHi;
unsigned LdOffset;
- LegalizeAddress(FrameAddress, DAG, LdLo, LdHi, LdOffset, dl);
+ LegalizeAddress(RetLabel, DAG, LdLo, LdHi, LdOffset, dl);
SDVTList Tys = DAG.getVTList(MVT::i8, MVT::Other, MVT::Flag);
SDValue LoadRet;
Chain = getChain(LoadRet);
Offset++;
- ResultVals.push_back(LoadRet);
+ InVals.push_back(LoadRet);
}
- // To return use MERGE_VALUES
- ResultVals.push_back(Chain);
- SDValue Res = DAG.getMergeValues(&ResultVals[0], ResultVals.size(), dl);
- return Res;
+ return Chain;
}
-SDValue PIC16TargetLowering::LowerRET(SDValue Op, SelectionDAG &DAG) {
- SDValue Chain = Op.getOperand(0);
- DebugLoc dl = Op.getDebugLoc();
-
- if (Op.getNumOperands() == 1) // return void
- return Op;
+SDValue
+PIC16TargetLowering::LowerReturn(SDValue Chain,
+ CallingConv::ID CallConv, bool isVarArg,
+ const SmallVectorImpl<ISD::OutputArg> &Outs,
+ DebugLoc dl, SelectionDAG &DAG) {
- // return should have odd number of operands
- if ((Op.getNumOperands() % 2) == 0 ) {
- assert(0 && "Do not know how to return this many arguments!");
- abort();
- }
-
// Number of values to return
- unsigned NumRet = (Op.getNumOperands() / 2);
+ unsigned NumRet = Outs.size();
// Function returns value always on stack with the offset starting
// from 0
const Function *F = MF.getFunction();
std::string FuncName = F->getName();
- char *tmpName = new char [strlen(FuncName.c_str()) + 8];
- sprintf(tmpName, "%s.frame", FuncName.c_str());
+ const char *tmpName = createESName(PAN::getFrameLabel(FuncName));
SDVTList VTs = DAG.getVTList (MVT::i8, MVT::Other);
SDValue ES = DAG.getTargetExternalSymbol(tmpName, MVT::i8);
SDValue BS = DAG.getConstant(1, MVT::i8);
SDValue RetVal;
for(unsigned i=0;i<NumRet; ++i) {
- RetVal = Op.getNode()->getOperand(2*i + 1);
+ RetVal = Outs[i].Val;
Chain = DAG.getNode (PIC16ISD::PIC16Store, dl, MVT::Other, Chain, RetVal,
ES, BS,
DAG.getConstant (i, MVT::i8));
}
- return DAG.getNode(ISD::RET, dl, MVT::Other, Chain);
-}
-
-// CALL node may have some operands non-legal to PIC16. Generate new CALL
-// node with all the operands legal.
-// Currently only Callee operand of the CALL node is non-legal. This function
-// legalizes the Callee operand and uses all other operands as are to generate
-// new CALL node.
-
-SDValue PIC16TargetLowering::LegalizeCALL(SDValue Op, SelectionDAG &DAG) {
- CallSDNode *TheCall = dyn_cast<CallSDNode>(Op);
- SDValue Chain = TheCall->getChain();
- SDValue Callee = TheCall->getCallee();
- DebugLoc dl = TheCall->getDebugLoc();
- unsigned i =0;
-
- assert(Callee.getValueType() == MVT::i16 &&
- "Don't know how to legalize this call node!!!");
- assert(Callee.getOpcode() == ISD::BUILD_PAIR &&
- "Don't know how to legalize this call node!!!");
-
- if (isDirectAddress(Callee)) {
- // Come here for direct calls
- Callee = Callee.getOperand(0).getOperand(0);
- } else {
- // Come here for indirect calls
- SDValue Lo, Hi;
- // Indirect addresses. Get the hi and lo parts of ptr.
- GetExpandedParts(Callee, DAG, Lo, Hi);
- // Connect Lo and Hi parts of the callee with the PIC16Connect
- Callee = DAG.getNode(PIC16ISD::PIC16Connect, dl, MVT::i8, Lo, Hi);
- }
- std::vector<SDValue> Ops;
- Ops.push_back(Chain);
- Ops.push_back(Callee);
-
- // Add the call arguments and their flags
- unsigned NumArgs = TheCall->getNumArgs();
- for(i=0;i<NumArgs;i++) {
- Ops.push_back(TheCall->getArg(i));
- Ops.push_back(TheCall->getArgFlagsVal(i));
- }
- std::vector<MVT> NodeTys;
- unsigned NumRets = TheCall->getNumRetVals();
- for(i=0;i<NumRets;i++)
- NodeTys.push_back(TheCall->getRetValType(i));
-
- // Return a Chain as well
- NodeTys.push_back(MVT::Other);
-
- SDVTList VTs = DAG.getVTList(&NodeTys[0], NodeTys.size());
- // Generate new call with all the operands legal
- return DAG.getCall(TheCall->getCallingConv(), dl,
- TheCall->isVarArg(), TheCall->isTailCall(),
- TheCall->isInreg(), VTs, &Ops[0], Ops.size());
+ return DAG.getNode(PIC16ISD::RET, dl, MVT::Other, Chain);
}
void PIC16TargetLowering::
SDValue Lo = Callee.getOperand(0);
SDValue Hi = Callee.getOperand(1);
+ SDValue Data_Lo, Data_Hi;
SDVTList Tys = DAG.getVTList(MVT::i8, MVT::Other, MVT::Flag);
- Hi = DAG.getNode(PIC16ISD::MTPCLATH, dl, MVT::i8, Hi);
- // Use the Lo part as is and make CALLW
- Callee = DAG.getNode(PIC16ISD::PIC16Connect, dl, MVT::i8, Lo, Hi);
+ // Subtract 2 from Address to get the Lower part of DataAddress.
+ SDVTList VTList = DAG.getVTList(MVT::i8, MVT::Flag);
+ Data_Lo = DAG.getNode(ISD::SUBC, dl, VTList, Lo,
+ DAG.getConstant(2, MVT::i8));
+ SDValue Ops[3] = { Hi, DAG.getConstant(0, MVT::i8), Data_Lo.getValue(1)};
+ Data_Hi = DAG.getNode(ISD::SUBE, dl, VTList, Ops, 3);
+ SDValue PCLATH = DAG.getNode(PIC16ISD::MTPCLATH, dl, MVT::i8, Data_Hi);
+ Callee = DAG.getNode(PIC16ISD::PIC16Connect, dl, MVT::i8, Data_Lo, PCLATH);
SDValue Call = DAG.getNode(PIC16ISD::CALLW, dl, Tys, Chain, Callee,
OperFlag);
Chain = getChain(Call);
Chain = getChain(SeqStart);
OperFlag = getOutFlag(SeqStart); // To manage the data dependency
- // Add 1 to Lo part for the second code word.
- Lo = DAG.getNode(ISD::ADD, dl, MVT::i8, Lo, DAG.getConstant(1, MVT::i8));
+ // Subtract 1 from Address to get high part of data address.
+ Data_Lo = DAG.getNode(ISD::SUBC, dl, VTList, Lo,
+ DAG.getConstant(1, MVT::i8));
+ SDValue HiOps[3] = { Hi, DAG.getConstant(0, MVT::i8), Data_Lo.getValue(1)};
+ Data_Hi = DAG.getNode(ISD::SUBE, dl, VTList, HiOps, 3);
+ PCLATH = DAG.getNode(PIC16ISD::MTPCLATH, dl, MVT::i8, Data_Hi);
+
// Use new Lo to make another CALLW
- Callee = DAG.getNode(PIC16ISD::PIC16Connect, dl, MVT::i8, Lo, Hi);
+ Callee = DAG.getNode(PIC16ISD::PIC16Connect, dl, MVT::i8, Data_Lo, PCLATH);
Call = DAG.getNode(PIC16ISD::CALLW, dl, Tys, Chain, Callee, OperFlag);
Chain = getChain(Call);
OperFlag = getOutFlag(Call);
DataAddr_Hi = DAG.getNode(PIC16ISD::MTHI, dl, MVT::i8, Call, OperFlag);
}
+SDValue
+PIC16TargetLowering::LowerCall(SDValue Chain, SDValue Callee,
+ CallingConv::ID CallConv, bool isVarArg,
+ bool isTailCall,
+ const SmallVectorImpl<ISD::OutputArg> &Outs,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ DebugLoc dl, SelectionDAG &DAG,
+ SmallVectorImpl<SDValue> &InVals) {
-SDValue PIC16TargetLowering::LowerCALL(SDValue Op, SelectionDAG &DAG) {
- CallSDNode *TheCall = dyn_cast<CallSDNode>(Op);
- SDValue Chain = TheCall->getChain();
- SDValue Callee = TheCall->getCallee();
- DebugLoc dl = TheCall->getDebugLoc();
- if (Callee.getValueType() == MVT::i16 &&
- Callee.getOpcode() == ISD::BUILD_PAIR) {
- // Control should come here only from TypeLegalizer for lowering
-
- // Legalize the non-legal arguments of call and return the
- // new call with legal arguments.
- return LegalizeCALL(Op, DAG);
- }
- // Control should come here from Legalize DAG.
- // Here all the operands of CALL node should be legal.
-
- // If this is an indirect call then to pass the arguments
- // and read the return value back, we need the data address
- // of the function being called.
- // To get the data address two more calls need to be made.
+ assert(Callee.getValueType() == MVT::i16 &&
+ "Don't know how to legalize this call node!!!");
// The flag to track if this is a direct or indirect call.
bool IsDirectCall = true;
- unsigned RetVals = TheCall->getNumRetVals();
- unsigned NumArgs = TheCall->getNumArgs();
+ unsigned RetVals = Ins.size();
+ unsigned NumArgs = Outs.size();
SDValue DataAddr_Lo, DataAddr_Hi;
- if (Callee.getOpcode() == PIC16ISD::PIC16Connect) {
+ if (!isa<GlobalAddressSDNode>(Callee) &&
+ !isa<ExternalSymbolSDNode>(Callee)) {
IsDirectCall = false; // This is indirect call
+
+ // If this is an indirect call then to pass the arguments
+ // and read the return value back, we need the data address
+ // of the function being called.
+ // To get the data address two more calls need to be made.
+
+ // Come here for indirect calls
+ SDValue Lo, Hi;
+ // Indirect addresses. Get the hi and lo parts of ptr.
+ GetExpandedParts(Callee, DAG, Lo, Hi);
+ // Connect Lo and Hi parts of the callee with the PIC16Connect
+ Callee = DAG.getNode(PIC16ISD::PIC16Connect, dl, MVT::i8, Lo, Hi);
+
// Read DataAddress only if we have to pass arguments or
// read return value.
if ((RetVals > 0) || (NumArgs > 0))
}
// Label for argument passing
- char *argFrame = new char [strlen(Name.c_str()) + 8];
- sprintf(argFrame, "%s.args", Name.c_str());
+ const char *argFrame = createESName(PAN::getArgsLabel(Name));
ArgLabel = DAG.getTargetExternalSymbol(argFrame, MVT::i8);
// Label for reading return value
- char *retName = new char [strlen(Name.c_str()) + 8];
- sprintf(retName, "%s.retval", Name.c_str());
+ const char *retName = createESName(PAN::getRetvalLabel(Name));
RetLabel = DAG.getTargetExternalSymbol(retName, MVT::i8);
} else {
// if indirect call
SDValue CodeAddr_Lo = Callee.getOperand(0);
SDValue CodeAddr_Hi = Callee.getOperand(1);
- CodeAddr_Lo = DAG.getNode(ISD::ADD, dl, MVT::i8, CodeAddr_Lo,
- DAG.getConstant(2, MVT::i8));
+ /*CodeAddr_Lo = DAG.getNode(ISD::ADD, dl, MVT::i8, CodeAddr_Lo,
+ DAG.getConstant(2, MVT::i8));*/
// move Hi part in PCLATH
CodeAddr_Hi = DAG.getNode(PIC16ISD::MTPCLATH, dl, MVT::i8, CodeAddr_Hi);
// Pass the argument to function before making the call.
SDValue CallArgs;
if (IsDirectCall) {
- CallArgs = LowerDirectCallArguments(Op, Chain, ArgLabel, OperFlag, DAG);
+ CallArgs = LowerDirectCallArguments(ArgLabel, Chain, OperFlag,
+ Outs, dl, DAG);
Chain = getChain(CallArgs);
OperFlag = getOutFlag(CallArgs);
} else {
- CallArgs = LowerIndirectCallArguments(Op, Chain, OperFlag, DataAddr_Lo,
- DataAddr_Hi, DAG);
+ CallArgs = LowerIndirectCallArguments(Chain, OperFlag, DataAddr_Lo,
+ DataAddr_Hi, Outs, Ins, dl, DAG);
Chain = getChain(CallArgs);
OperFlag = getOutFlag(CallArgs);
}
// Lower the return value reading after the call.
if (IsDirectCall)
- return LowerDirectCallReturn(Op, Chain, RetLabel, OperFlag, DAG);
+ return LowerDirectCallReturn(RetLabel, Chain, OperFlag,
+ Ins, dl, DAG, InVals);
else
- return LowerIndirectCallReturn(Op, Chain, OperFlag, DataAddr_Lo,
- DataAddr_Hi, DAG);
+ return LowerIndirectCallReturn(Chain, OperFlag, DataAddr_Lo,
+ DataAddr_Hi, Ins, dl, DAG, InVals);
}
bool PIC16TargetLowering::isDirectLoad(const SDValue Op) {
// Put one value on stack.
SDValue NewVal = ConvertToMemOperand (Op.getOperand(MemOp), DAG, dl);
- // ADDC and ADDE produces two results.
+ // ADDC and ADDE produce two results.
SDVTList Tys = DAG.getVTList(MVT::i8, MVT::Flag);
- // ADDE has three operands, the last one is a flag.
+ // ADDE has three operands, the last one is the carry bit.
if (Op.getOpcode() == ISD::ADDE)
return DAG.getNode(Op.getOpcode(), dl, Tys, Op.getOperand(MemOp ^ 1),
NewVal, Op.getOperand(2));
return DAG.getNode(Op.getOpcode(), dl, MVT::i8, Op.getOperand(MemOp ^ 1),
NewVal);
}
- else if (Op.getOpcode() == ISD::ADD)
- return Op;
else
- return SDValue();
+ return Op;
}
SDValue PIC16TargetLowering::LowerSUB(SDValue Op, SelectionDAG &DAG) {
// Nothing to do if the first operand is already a direct load and it has
// only one use.
if (isDirectLoad(Op.getOperand(0)) && Op.getOperand(0).hasOneUse())
- return SDValue();
+ return Op;
// Put first operand on stack.
SDValue NewVal = ConvertToMemOperand (Op.getOperand(0), DAG, dl);
SDVTList Tys = DAG.getVTList(MVT::i8, MVT::Flag);
- if (Op.getOpcode() == ISD::SUBE)
- return DAG.getNode(Op.getOpcode(), dl, Tys, NewVal, Op.getOperand(1),
- Op.getOperand(2));
+ switch (Op.getOpcode()) {
+ default:
+ assert (0 && "Opcode unknown.");
+ case ISD::SUBE:
+ return DAG.getNode(Op.getOpcode(), dl, Tys, NewVal, Op.getOperand(1),
+ Op.getOperand(2));
+ break;
+ case ISD::SUBC:
+ return DAG.getNode(Op.getOpcode(), dl, Tys, NewVal, Op.getOperand(1));
+ break;
+ case ISD::SUB:
+ return DAG.getNode(Op.getOpcode(), dl, MVT::i8, NewVal, Op.getOperand(1));
+ break;
+ }
+}
+
+void PIC16TargetLowering::InitReservedFrameCount(const Function *F) {
+ unsigned NumArgs = F->arg_size();
+
+ bool isVoidFunc = (F->getReturnType()->getTypeID() == Type::VoidTyID);
+
+ if (isVoidFunc)
+ ReservedFrameCount = NumArgs;
else
- return DAG.getNode(Op.getOpcode(), dl, Tys, NewVal, Op.getOperand(1));
+ ReservedFrameCount = NumArgs + 1;
}
-// LowerFORMAL_ARGUMENTS - Argument values are loaded from the
+// LowerFormalArguments - Argument values are loaded from the
// <fname>.args + offset. All arguments are already broken to leaglized
// types, so the offset just runs from 0 to NumArgVals - 1.
-SDValue PIC16TargetLowering::LowerFORMAL_ARGUMENTS(SDValue Op,
- SelectionDAG &DAG) {
- SmallVector<SDValue, 8> ArgValues;
- unsigned NumArgVals = Op.getNode()->getNumValues() - 1;
- DebugLoc dl = Op.getDebugLoc();
- SDValue Chain = Op.getOperand(0); // Formal arguments' chain
-
+SDValue
+PIC16TargetLowering::LowerFormalArguments(SDValue Chain,
+ CallingConv::ID CallConv,
+ bool isVarArg,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ DebugLoc dl,
+ SelectionDAG &DAG,
+ SmallVectorImpl<SDValue> &InVals) {
+ unsigned NumArgVals = Ins.size();
- // Reset the map of FI and TmpOffset
- ResetTmpOffsetMap();
// Get the callee's name to create the <fname>.args label to pass args.
MachineFunction &MF = DAG.getMachineFunction();
const Function *F = MF.getFunction();
std::string FuncName = F->getName();
+ // Reset the map of FI and TmpOffset
+ ResetTmpOffsetMap();
+ // Initialize the ReserveFrameCount
+ InitReservedFrameCount(F);
+
// Create the <fname>.args external symbol.
- char *tmpName = new char [strlen(FuncName.c_str()) + 6];
- sprintf(tmpName, "%s.args", FuncName.c_str());
+ const char *tmpName = createESName(PAN::getArgsLabel(FuncName));
SDValue ES = DAG.getTargetExternalSymbol(tmpName, MVT::i8);
// Load arg values from the label + offset.
SDValue PICLoad = DAG.getNode(PIC16ISD::PIC16LdArg, dl, VTs, Chain, ES, BS,
Offset);
Chain = getChain(PICLoad);
- ArgValues.push_back(PICLoad);
+ InVals.push_back(PICLoad);
}
- // Return a MERGE_VALUE node.
- ArgValues.push_back(Op.getOperand(0));
- return DAG.getNode(ISD::MERGE_VALUES, dl, Op.getNode()->getVTList(),
- &ArgValues[0], ArgValues.size()).getValue(Op.getResNo());
+ return Chain;
}
// Perform DAGCombine of PIC16Load.
static PIC16CC::CondCodes IntCCToPIC16CC(ISD::CondCode CC) {
switch (CC) {
- default: assert(0 && "Unknown condition code!");
+ default: llvm_unreachable("Unknown condition code!");
case ISD::SETNE: return PIC16CC::NE;
case ISD::SETEQ: return PIC16CC::EQ;
case ISD::SETGT: return PIC16CC::GT;
case ISD::SETLT: return PIC16CC::LT;
case ISD::SETLE: return PIC16CC::LE;
case ISD::SETULT: return PIC16CC::ULT;
- case ISD::SETULE: return PIC16CC::LE;
- case ISD::SETUGE: return PIC16CC::GE;
+ case ISD::SETULE: return PIC16CC::ULE;
+ case ISD::SETUGE: return PIC16CC::UGE;
case ISD::SETUGT: return PIC16CC::UGT;
}
}
MachineBasicBlock *
PIC16TargetLowering::EmitInstrWithCustomInserter(MachineInstr *MI,
- MachineBasicBlock *BB) const {
+ MachineBasicBlock *BB,
+ DenseMap<MachineBasicBlock*, MachineBasicBlock*> *EM) const {
const TargetInstrInfo &TII = *getTargetMachine().getInstrInfo();
unsigned CC = (PIC16CC::CondCodes)MI->getOperand(3).getImm();
DebugLoc dl = MI->getDebugLoc();
F->insert(It, copy0MBB);
F->insert(It, sinkMBB);
- // Update machine-CFG edges by transferring all successors of the current
+ // Update machine-CFG edges by first adding all successors of the current
// block to the new block which will contain the Phi node for the select.
- sinkMBB->transferSuccessors(BB);
+ // Also inform sdisel of the edge changes.
+ for (MachineBasicBlock::succ_iterator I = BB->succ_begin(),
+ E = BB->succ_end(); I != E; ++I) {
+ EM->insert(std::make_pair(*I, sinkMBB));
+ sinkMBB->addSuccessor(*I);
+ }
+ // Next, remove all successors of the current block, and add the true
+ // and fallthrough blocks as its successors.
+ while (!BB->succ_empty())
+ BB->removeSuccessor(BB->succ_begin());
// Next, add the true and fallthrough blocks as its successors.
BB->addSuccessor(copy0MBB);
BB->addSuccessor(sinkMBB);
Cmp.getValue(1));
}
-
projects / oota-llvm.git / blobdiff