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Access the subtarget off of the MachineFunction via the DAG

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219666 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher 2014-10-14 06:56:25 +00:00
parent 75ad488c41
commit cd694819ad
1 changed files with 7 additions and 9 deletions
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16
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);
}
}