RegionBegin = begin;
RegionEnd = end;
NumRegionInstrs = regioninstrs;
- MISUnitMap.clear();
-
- ScheduleDAG::clearDAG();
}
/// Close the current scheduling region. Don't clear any state in case the
unsigned Reg = MI->getOperand(OperIdx).getReg();
// Record this local VReg use.
- VRegUses.insert(VReg2SUnit(Reg, SU));
+ VReg2UseMap::iterator UI = VRegUses.find(Reg);
+ for (; UI != VRegUses.end(); ++UI) {
+ if (UI->SU == SU)
+ break;
+ }
+ if (UI == VRegUses.end())
+ VRegUses.insert(VReg2SUnit(Reg, SU));
// Lookup this operand's reaching definition.
assert(LIS && "vreg dependencies requires LiveIntervals");
- LiveRangeQuery LRQ(LIS->getInterval(Reg), LIS->getInstructionIndex(MI));
+ LiveQueryResult LRQ
+ = LIS->getInterval(Reg).Query(LIS->getInstructionIndex(MI));
VNInfo *VNI = LRQ.valueIn();
// VNI will be valid because MachineOperand::readsReg() is checked by caller.
/// DAG builder is an efficient place to do it because it already visits
/// operands.
void ScheduleDAGInstrs::buildSchedGraph(AliasAnalysis *AA,
- RegPressureTracker *RPTracker) {
+ RegPressureTracker *RPTracker,
+ PressureDiffs *PDiffs) {
const TargetSubtargetInfo &ST = TM.getSubtarget<TargetSubtargetInfo>();
bool UseAA = EnableAASchedMI.getNumOccurrences() > 0 ? EnableAASchedMI
: ST.useAA();
AliasAnalysis *AAForDep = UseAA ? AA : 0;
+ MISUnitMap.clear();
+ ScheduleDAG::clearDAG();
+
// Create an SUnit for each real instruction.
initSUnits();
+ if (PDiffs)
+ PDiffs->init(SUnits.size());
+
// We build scheduling units by walking a block's instruction list from bottom
// to top.
DbgMI = MI;
continue;
}
+ SUnit *SU = MISUnitMap[MI];
+ assert(SU && "No SUnit mapped to this MI");
+
if (RPTracker) {
- RPTracker->recede();
+ PressureDiff *PDiff = PDiffs ? &(*PDiffs)[SU->NodeNum] : 0;
+ RPTracker->recede(/*LiveUses=*/0, PDiff);
assert(RPTracker->getPos() == prior(MII) && "RPTracker can't find MI");
}
assert((CanHandleTerminators || (!MI->isTerminator() && !MI->isLabel())) &&
"Cannot schedule terminators or labels!");
- SUnit *SU = MISUnitMap[MI];
- assert(SU && "No SUnit mapped to this MI");
-
// Add register-based dependencies (data, anti, and output).
bool HasVRegDef = false;
for (unsigned j = 0, n = MI->getNumOperands(); j != n; ++j) {