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Access the subtarget off of the MachineFunction via the DAG 

scheduler or via the SelectionDAG if available. Otherwise
grab the subtarget off of the MachineFunction by going up
the parent chain.

llvm-svn: 219666
This commit is contained in:
Eric Christopher 2014-10-14 06:56:25 +00:00
parent 3cb826ca10
commit 99556d77ef
1 changed files with 7 additions and 9 deletions
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16
llvm/lib/CodeGen/MachineScheduler.cpp
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@ -2363,15 +2363,14 @@ void GenericScheduler::initialize(ScheduleDAGMI *dag) {
// Initialize the HazardRecognizers. If itineraries don't exist, are empty, or
// are disabled, then these HazardRecs will be disabled.
const InstrItineraryData *Itin = SchedModel->getInstrItineraries();
const TargetMachine &TM = DAG->MF.getTarget();
if (!Top.HazardRec) {
Top.HazardRec =
TM.getSubtargetImpl()->getInstrInfo()->CreateTargetMIHazardRecognizer(
DAG->MF.getSubtarget().getInstrInfo()->CreateTargetMIHazardRecognizer(
Itin, DAG);
}
if (!Bot.HazardRec) {
Bot.HazardRec =
TM.getSubtargetImpl()->getInstrInfo()->CreateTargetMIHazardRecognizer(
DAG->MF.getSubtarget().getInstrInfo()->CreateTargetMIHazardRecognizer(
Itin, DAG);
}
}
@ -2380,8 +2379,8 @@ void GenericScheduler::initialize(ScheduleDAGMI *dag) {
void GenericScheduler::initPolicy(MachineBasicBlock::iterator Begin,
MachineBasicBlock::iterator End,
unsigned NumRegionInstrs) {
const TargetMachine &TM = Context->MF->getTarget();
const TargetLowering *TLI = TM.getSubtargetImpl()->getTargetLowering();
const MachineFunction &MF = *Begin->getParent()->getParent();
const TargetLowering *TLI = MF.getSubtarget().getTargetLowering();
// Avoid setting up the register pressure tracker for small regions to save
// compile time. As a rough heuristic, only track pressure when the number of
@ -2401,8 +2400,8 @@ void GenericScheduler::initPolicy(MachineBasicBlock::iterator Begin,
RegionPolicy.OnlyBottomUp = true;
// Allow the subtarget to override default policy.
const TargetSubtargetInfo &ST = TM.getSubtarget<TargetSubtargetInfo>();
ST.overrideSchedPolicy(RegionPolicy, Begin, End, NumRegionInstrs);
MF.getSubtarget().overrideSchedPolicy(RegionPolicy, Begin, End,
NumRegionInstrs);
// After subtarget overrides, apply command line options.
if (!EnableRegPressure)
@ -2898,10 +2897,9 @@ void PostGenericScheduler::initialize(ScheduleDAGMI *Dag) {
// Initialize the HazardRecognizers. If itineraries don't exist, are empty,
// or are disabled, then these HazardRecs will be disabled.
const InstrItineraryData *Itin = SchedModel->getInstrItineraries();
const TargetMachine &TM = DAG->MF.getTarget();
if (!Top.HazardRec) {
Top.HazardRec =
TM.getSubtargetImpl()->getInstrInfo()->CreateTargetMIHazardRecognizer(
DAG->MF.getSubtarget().getInstrInfo()->CreateTargetMIHazardRecognizer(
Itin, DAG);
}
}