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//===- PIC16ConstantPoolValue.cpp - PIC16 constantpool value --------------===//
//
// 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 PIC16 specific constantpool value class.
//
//===----------------------------------------------------------------------===//
#include "PIC16ConstantPoolValue.h"
#include "llvm/ADT/FoldingSet.h"
#include "llvm/GlobalValue.h"
#include "llvm/Type.h"
using namespace llvm;
PIC16ConstantPoolValue::PIC16ConstantPoolValue(GlobalValue *gv, unsigned id,
PIC16CP::PIC16CPKind k,
unsigned char PCAdj,
const char *Modif, bool AddCA)
: MachineConstantPoolValue((const Type*)gv->getType()),
GV(gv), S(NULL), LabelId(id), Kind(k), PCAdjust(PCAdj),
Modifier(Modif), AddCurrentAddress(AddCA) {}
PIC16ConstantPoolValue::PIC16ConstantPoolValue(const char *s, unsigned id,
PIC16CP::PIC16CPKind k,
unsigned char PCAdj,
const char *Modif, bool AddCA)
: MachineConstantPoolValue((const Type*)Type::Int32Ty),
GV(NULL), S(s), LabelId(id), Kind(k), PCAdjust(PCAdj),
Modifier(Modif), AddCurrentAddress(AddCA) {}
PIC16ConstantPoolValue::PIC16ConstantPoolValue(GlobalValue *gv,
PIC16CP::PIC16CPKind k,
const char *Modif)
: MachineConstantPoolValue((const Type*)Type::Int32Ty),
GV(gv), S(NULL), LabelId(0), Kind(k), PCAdjust(0),
Modifier(Modif) {}
int PIC16ConstantPoolValue::getExistingMachineCPValue(MachineConstantPool *CP,
unsigned Alignment) {
unsigned AlignMask = (1 << Alignment)-1;
const std::vector<MachineConstantPoolEntry> Constants = CP->getConstants();
for (unsigned i = 0, e = Constants.size(); i != e; ++i) {
if (Constants[i].isMachineConstantPoolEntry() &&
(Constants[i].Offset & AlignMask) == 0) {
PIC16ConstantPoolValue *CPV =
(PIC16ConstantPoolValue *)Constants[i].Val.MachineCPVal;
if (CPV->GV == GV &&
CPV->S == S &&
CPV->LabelId == LabelId &&
CPV->Kind == Kind &&
CPV->PCAdjust == PCAdjust)
return i;
}
}
return -1;
}
void
PIC16ConstantPoolValue::AddSelectionDAGCSEId(FoldingSetNodeID &ID) {
ID.AddPointer(GV);
ID.AddPointer(S);
ID.AddInteger(LabelId);
ID.AddInteger((unsigned)Kind);
ID.AddInteger(PCAdjust);
}
void PIC16ConstantPoolValue::print(std::ostream &O) const {
if (GV)
O << GV->getName();
else
O << S;
if (isNonLazyPointer()) O << "$non_lazy_ptr";
else if (isStub()) O << "$stub";
if (Modifier) O << "(" << Modifier << ")";
if (PCAdjust != 0) {
O << "-(LPIC" << LabelId << "+"
<< (unsigned)PCAdjust;
if (AddCurrentAddress)
O << "-.";
O << ")";
}
}
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