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Minor cleanup of defaultDefLatency API

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161470 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick 2012-08-08 02:44:11 +00:00
parent d598bd3aee
commit 3c417554ca
2 changed files with 10 additions and 7 deletions
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3
include/llvm/Target/TargetInstrInfo.h
View File

@ -28,6 +28,7 @@ class MachineMemOperand;
class MachineRegisterInfo;
class MDNode;
class MCInst;
class MCSchedModel;
class SDNode;
class ScheduleHazardRecognizer;
class SelectionDAG;
@ -790,7 +791,7 @@ public:
SDNode *Node) const = 0;
/// Return the default expected latency for a def based on it's opcode.
unsigned defaultDefLatency(const InstrItineraryData *ItinData,
unsigned defaultDefLatency(const MCSchedModel *SchedModel,
const MachineInstr *DefMI) const;
/// isHighLatencyDef - Return true if this opcode has high latency to its

14
lib/CodeGen/TargetInstrInfoImpl.cpp
View File

@ -570,12 +570,12 @@ TargetInstrInfoImpl::getNumMicroOps(const InstrItineraryData *ItinData,
}
/// Return the default expected latency for a def based on it's opcode.
unsigned TargetInstrInfo::defaultDefLatency(const InstrItineraryData *ItinData,
unsigned TargetInstrInfo::defaultDefLatency(const MCSchedModel *SchedModel,
const MachineInstr *DefMI) const {
if (DefMI->mayLoad())
return ItinData->SchedModel->LoadLatency;
return SchedModel->LoadLatency;
if (isHighLatencyDef(DefMI->getOpcode()))
return ItinData->SchedModel->HighLatency;
return SchedModel->HighLatency;
return 1;
}
@ -638,7 +638,7 @@ static int computeDefOperandLatency(
return 1;
}
else if(ItinData->isEmpty())
return TII->defaultDefLatency(ItinData, DefMI);
return TII->defaultDefLatency(ItinData->SchedModel, DefMI);
// ...operand lookup required
return -1;
@ -669,7 +669,8 @@ computeOperandLatency(const InstrItineraryData *ItinData,
// Expected latency is the max of the stage latency and itinerary props.
if (!FindMin)
InstrLatency = std::max(InstrLatency, defaultDefLatency(ItinData, DefMI));
InstrLatency = std::max(InstrLatency,
defaultDefLatency(ItinData->SchedModel, DefMI));
return InstrLatency;
}
@ -742,6 +743,7 @@ computeOperandLatency(const InstrItineraryData *ItinData,
// Expected latency is the max of the stage latency and itinerary props.
if (!FindMin)
InstrLatency = std::max(InstrLatency, defaultDefLatency(ItinData, DefMI));
InstrLatency = std::max(InstrLatency,
defaultDefLatency(ItinData->SchedModel, DefMI));
return InstrLatency;
}