return false;
}
-/// This returns true if the two MIs need a chain edge betwee them.
+/// This returns true if the two MIs need a chain edge between them.
/// If these are not even memory operations, we still may need
/// chain deps between them. The question really is - could
/// these two MIs be reordered during scheduling from memory dependency
unsigned TrueMemOrderLatency = 0,
bool isNormalMemory = false) {
// If this is a false dependency,
- // do not add the edge, but rememeber the rejected node.
+ // do not add the edge, but remember the rejected node.
if (MIsNeedChainEdge(AA, MFI, DL, SUa->getInstr(), SUb->getInstr())) {
SDep Dep(SUa, isNormalMemory ? SDep::MayAliasMem : SDep::Barrier);
Dep.setLatency(TrueMemOrderLatency);
}
}
-/// Create an SUnit for each real instruction, numbered in top-down toplological
+/// Create an SUnit for each real instruction, numbered in top-down topological
/// order. The instruction order A < B, implies that no edge exists from B to A.
///
/// Map each real instruction to its SUnit.
// We build scheduling units by walking a block's instruction list from bottom
// to top.
- // Remember where a generic side-effecting instruction is as we procede.
+ // Remember where a generic side-effecting instruction is as we proceed.
SUnit *BarrierChain = nullptr, *AliasChain = nullptr;
// Memory references to specific known memory locations are tracked
BarrierChain = SU;
// This is a barrier event that acts as a pivotal node in the DAG,
// so it is safe to clear list of exposed nodes.
- adjustChainDeps(AA, MFI, *TM.getDataLayout(), SU, &ExitSU, RejectMemNodes,
+ adjustChainDeps(AA, MFI, MF.getDataLayout(), SU, &ExitSU, RejectMemNodes,
TrueMemOrderLatency);
RejectMemNodes.clear();
NonAliasMemDefs.clear();
unsigned ChainLatency = 0;
if (AliasChain->getInstr()->mayLoad())
ChainLatency = TrueMemOrderLatency;
- addChainDependency(AAForDep, MFI, *TM.getDataLayout(), SU, AliasChain,
+ addChainDependency(AAForDep, MFI, MF.getDataLayout(), SU, AliasChain,
RejectMemNodes, ChainLatency);
}
AliasChain = SU;
for (unsigned k = 0, m = PendingLoads.size(); k != m; ++k)
- addChainDependency(AAForDep, MFI, *TM.getDataLayout(), SU,
+ addChainDependency(AAForDep, MFI, MF.getDataLayout(), SU,
PendingLoads[k], RejectMemNodes,
TrueMemOrderLatency);
for (MapVector<ValueType, std::vector<SUnit *> >::iterator I =
AliasMemDefs.begin(), E = AliasMemDefs.end(); I != E; ++I) {
for (unsigned i = 0, e = I->second.size(); i != e; ++i)
- addChainDependency(AAForDep, MFI, *TM.getDataLayout(), SU,
+ addChainDependency(AAForDep, MFI, MF.getDataLayout(), SU,
I->second[i], RejectMemNodes);
}
for (MapVector<ValueType, std::vector<SUnit *> >::iterator I =
AliasMemUses.begin(), E = AliasMemUses.end(); I != E; ++I) {
for (unsigned i = 0, e = I->second.size(); i != e; ++i)
- addChainDependency(AAForDep, MFI, *TM.getDataLayout(), SU,
+ addChainDependency(AAForDep, MFI, MF.getDataLayout(), SU,
I->second[i], RejectMemNodes, TrueMemOrderLatency);
}
- adjustChainDeps(AA, MFI, *TM.getDataLayout(), SU, &ExitSU, RejectMemNodes,
+ adjustChainDeps(AA, MFI, MF.getDataLayout(), SU, &ExitSU, RejectMemNodes,
TrueMemOrderLatency);
PendingLoads.clear();
AliasMemDefs.clear();
BarrierChain->addPred(SDep(SU, SDep::Barrier));
UnderlyingObjectsVector Objs;
- getUnderlyingObjectsForInstr(MI, MFI, Objs, *TM.getDataLayout());
+ getUnderlyingObjectsForInstr(MI, MFI, Objs, MF.getDataLayout());
if (Objs.empty()) {
// Treat all other stores conservatively.
((ThisMayAlias) ? AliasMemDefs.end() : NonAliasMemDefs.end());
if (I != IE) {
for (unsigned i = 0, e = I->second.size(); i != e; ++i)
- addChainDependency(AAForDep, MFI, *TM.getDataLayout(), SU,
+ addChainDependency(AAForDep, MFI, MF.getDataLayout(), SU,
I->second[i], RejectMemNodes, 0, true);
// If we're not using AA, then we only need one store per object.
((ThisMayAlias) ? AliasMemUses.end() : NonAliasMemUses.end());
if (J != JE) {
for (unsigned i = 0, e = J->second.size(); i != e; ++i)
- addChainDependency(AAForDep, MFI, *TM.getDataLayout(), SU,
+ addChainDependency(AAForDep, MFI, MF.getDataLayout(), SU,
J->second[i], RejectMemNodes,
TrueMemOrderLatency, true);
J->second.clear();
// Add dependencies from all the PendingLoads, i.e. loads
// with no underlying object.
for (unsigned k = 0, m = PendingLoads.size(); k != m; ++k)
- addChainDependency(AAForDep, MFI, *TM.getDataLayout(), SU,
+ addChainDependency(AAForDep, MFI, MF.getDataLayout(), SU,
PendingLoads[k], RejectMemNodes,
TrueMemOrderLatency);
// Add dependence on alias chain, if needed.
if (AliasChain)
- addChainDependency(AAForDep, MFI, *TM.getDataLayout(), SU, AliasChain,
+ addChainDependency(AAForDep, MFI, MF.getDataLayout(), SU, AliasChain,
RejectMemNodes);
}
- adjustChainDeps(AA, MFI, *TM.getDataLayout(), SU, &ExitSU, RejectMemNodes,
+ adjustChainDeps(AA, MFI, MF.getDataLayout(), SU, &ExitSU, RejectMemNodes,
TrueMemOrderLatency);
} else if (MI->mayLoad()) {
bool MayAlias = true;
// Invariant load, no chain dependencies needed!
} else {
UnderlyingObjectsVector Objs;
- getUnderlyingObjectsForInstr(MI, MFI, Objs, *TM.getDataLayout());
+ getUnderlyingObjectsForInstr(MI, MFI, Objs, MF.getDataLayout());
if (Objs.empty()) {
// A load with no underlying object. Depend on all
for (MapVector<ValueType, std::vector<SUnit *> >::iterator I =
AliasMemDefs.begin(), E = AliasMemDefs.end(); I != E; ++I)
for (unsigned i = 0, e = I->second.size(); i != e; ++i)
- addChainDependency(AAForDep, MFI, *TM.getDataLayout(), SU,
+ addChainDependency(AAForDep, MFI, MF.getDataLayout(), SU,
I->second[i], RejectMemNodes);
PendingLoads.push_back(SU);
((ThisMayAlias) ? AliasMemDefs.end() : NonAliasMemDefs.end());
if (I != IE)
for (unsigned i = 0, e = I->second.size(); i != e; ++i)
- addChainDependency(AAForDep, MFI, *TM.getDataLayout(), SU,
+ addChainDependency(AAForDep, MFI, MF.getDataLayout(), SU,
I->second[i], RejectMemNodes, 0, true);
if (ThisMayAlias)
AliasMemUses[V].push_back(SU);
NonAliasMemUses[V].push_back(SU);
}
if (MayAlias)
- adjustChainDeps(AA, MFI, *TM.getDataLayout(), SU, &ExitSU,
+ adjustChainDeps(AA, MFI, MF.getDataLayout(), SU, &ExitSU,
RejectMemNodes, /*Latency=*/0);
// Add dependencies on alias and barrier chains, if needed.
if (MayAlias && AliasChain)
- addChainDependency(AAForDep, MFI, *TM.getDataLayout(), SU, AliasChain,
+ addChainDependency(AAForDep, MFI, MF.getDataLayout(), SU, AliasChain,
RejectMemNodes);
if (BarrierChain)
BarrierChain->addPred(SDep(SU, SDep::Barrier));