void TempScopInfo::buildAccessFunctions(Region &R, BasicBlock &BB,
Region *NonAffineSubRegion) {
AccFuncSetType Functions;
Loop *L = LI->getLoopFor(&BB);
// The set of loops contained in non-affine subregions that are part of R.
const ScopDetection::BoxedLoopsSetTy *BoxedLoops = SD->getBoxedLoops(&R);
for (BasicBlock::iterator I = BB.begin(), E = --BB.end(); I != E; ++I) {
Instruction *Inst = I;
if (isa<LoadInst>(Inst) || isa<StoreInst>(Inst))
Functions.push_back(
std::make_pair(buildIRAccess(Inst, L, &R, BoxedLoops), Inst));
if (PHINode *PHI = dyn_cast<PHINode>(Inst))
buildPHIAccesses(PHI, R, Functions, NonAffineSubRegion);
if (!isa<StoreInst>(Inst) &&
buildScalarDependences(Inst, &R, NonAffineSubRegion)) {
// If the Instruction is used outside the statement, we need to build the
// write access.
IRAccess ScalarAccess(IRAccess::MUST_WRITE, Inst, ZeroOffset, 1, true);
Functions.push_back(std::make_pair(ScalarAccess, Inst));
}
}
if (Functions.empty())
return;
AccFuncSetType &Accs = AccFuncMap[&BB];
Accs.insert(Accs.end(), Functions.begin(), Functions.end());
}
void TempScopInfo::buildAccessFunctions(Region &R, ParamSetType &Params,
BasicBlock &BB) {
AccFuncSetType Functions;
for (BasicBlock::iterator I = BB.begin(), E = --BB.end(); I != E; ++I) {
Instruction &Inst = *I;
if (isa<LoadInst>(&Inst) || isa<StoreInst>(&Inst)) {
// Create the SCEVAffFunc.
if (LoadInst *ld = dyn_cast<LoadInst>(&Inst)) {
unsigned size = TD->getTypeStoreSize(ld->getType());
Functions.push_back(
std::make_pair(SCEVAffFunc(SCEVAffFunc::ReadMem, size), &Inst));
} else {//Else it must be a StoreInst.
StoreInst *st = cast<StoreInst>(&Inst);
unsigned size = TD->getTypeStoreSize(st->getValueOperand()->getType());
Functions.push_back(
std::make_pair(SCEVAffFunc(SCEVAffFunc::WriteMem, size), &Inst));
}
Value *Ptr = getPointerOperand(Inst);
buildAffineFunction(SE->getSCEV(Ptr), Functions.back().first, R, Params);
}
}
if (Functions.empty())
return;
AccFuncSetType &Accs = AccFuncMap[&BB];
Accs.insert(Accs.end(), Functions.begin(), Functions.end());
}
void TempScopInfo::buildAccessFunctions(Region &R, BasicBlock &BB) {
AccFuncSetType Functions;
for (BasicBlock::iterator I = BB.begin(), E = --BB.end(); I != E; ++I) {
Instruction &Inst = *I;
if (isa<LoadInst>(&Inst) || isa<StoreInst>(&Inst)) {
unsigned Size;
enum IRAccess::TypeKind Type;
if (LoadInst *Load = dyn_cast<LoadInst>(&Inst)) {
Size = TD->getTypeStoreSize(Load->getType());
Type = IRAccess::READ;
} else {
StoreInst *Store = cast<StoreInst>(&Inst);
Size = TD->getTypeStoreSize(Store->getValueOperand()->getType());
Type = IRAccess::WRITE;
}
const SCEV *AccessFunction = SE->getSCEV(getPointerOperand(Inst));
const SCEVUnknown *BasePointer =
dyn_cast<SCEVUnknown>(SE->getPointerBase(AccessFunction));
assert(BasePointer && "Could not find base pointer");
AccessFunction = SE->getMinusSCEV(AccessFunction, BasePointer);
bool IsAffine =
isAffineExpr(&R, AccessFunction, *SE, BasePointer->getValue());
Functions.push_back(
std::make_pair(IRAccess(Type, BasePointer->getValue(), AccessFunction,
Size, IsAffine), &Inst));
}
}
if (Functions.empty())
return;
AccFuncSetType &Accs = AccFuncMap[&BB];
Accs.insert(Accs.end(), Functions.begin(), Functions.end());
}
