#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: assert (0 && "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.
+ char *tmp = new char[Fullname.size() + 1];
+ strcpy (tmp, Fullname.c_str());
+
+ return tmp;
+}
// PIC16TargetLowering Constructor.
PIC16TargetLowering::PIC16TargetLowering(PIC16TargetMachine &TM)
: TargetLowering(TM), TmpSize(0) {
-
+
Subtarget = &TM.getSubtarget<PIC16Subtarget>();
addRegisterClass(MVT::i8, PIC16::GPRRegisterClass);
setShiftAmountFlavor(Extend);
// 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::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::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
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().getTypeForMVT(*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();
+ const Type *RetTy = RetVT.getTypeForMVT(*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, Callee, Args, DAG, dl);
return CallInfo.first;
}
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);
}
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
// 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)) {
// i.e. without any extension
MVT 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) {
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);
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 = TheCall->getNumRetVals();
+ for (unsigned i = 0, ArgOffset = RetVals; i < NumOps; i++) {
// Get the arguments
Arg = TheCall->getArg(i);
+
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,
+LowerDirectCallArguments(SDValue Op, SDValue Chain, SDValue ArgLabel,
SDValue InFlag, SelectionDAG &DAG) {
CallSDNode *TheCall = dyn_cast<CallSDNode>(Op);
unsigned NumOps = TheCall->getNumArgs();
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;
for (unsigned i=ArgCount, Offset = 0; i<NumOps; i++) {
// Get the argument
Arg = TheCall->getArg(i);
-
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::
-LowerDirectCallReturn(SDValue Op, SDValue Chain, SDValue FrameAddress,
+LowerDirectCallReturn(SDValue Op, SDValue Chain, SDValue RetLabel,
SDValue InFlag, SelectionDAG &DAG) {
CallSDNode *TheCall = dyn_cast<CallSDNode>(Op);
DebugLoc dl = TheCall->getDebugLoc();
// 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;
// return should have odd number of operands
if ((Op.getNumOperands() % 2) == 0 ) {
- assert(0 && "Do not know how to return this many arguments!");
- abort();
+ llvm_unreachable("Do not know how to return this many arguments!");
}
// Number of values to return
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);
// 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());
+ TheCall->isInreg(), VTs, &Ops[0], Ops.size(),
+ TheCall->getNumFixedArgs());
}
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);
}
// 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);
// Put one value on stack.
SDValue NewVal = ConvertToMemOperand (Op.getOperand(MemOp), DAG, dl);
+ // ADDC and ADDE produce two results.
SDVTList Tys = DAG.getVTList(MVT::i8, MVT::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));
- else
+ // ADDC has two operands.
+ else if (Op.getOpcode() == ISD::ADDC)
return DAG.getNode(Op.getOpcode(), dl, Tys, Op.getOperand(MemOp ^ 1),
NewVal);
+ // ADD it is. It produces only one result.
+ else
+ return DAG.getNode(Op.getOpcode(), dl, MVT::i8, Op.getOperand(MemOp ^ 1),
+ NewVal);
}
- else if (Op.getOpcode() == ISD::ADD) {
+ else
return Op;
- }
- else {
- return SDValue();
- }
}
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);
return DAG.getNode(Op.getOpcode(), dl, Tys, NewVal, Op.getOperand(1));
}
+void PIC16TargetLowering::InitReservedFrameCount(const Function *F) {
+ unsigned NumArgs = F->arg_size();
+
+ bool isVoidFunc = (F->getReturnType()->getTypeID() == Type::VoidTyID);
+
+ if (isVoidFunc)
+ ReservedFrameCount = NumArgs;
+ else
+ ReservedFrameCount = NumArgs + 1;
+}
+
// LowerFORMAL_ARGUMENTS - 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 Chain = Op.getOperand(0); // Formal arguments' chain
- // 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.
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;
}
}
Cmp.getValue(1));
}
-
projects / oota-llvm.git / blobdiff