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LLVM
4.0.0
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#include <GCNHazardRecognizer.h>
Public Member Functions | |
| GCNHazardRecognizer (const MachineFunction &MF) | |
| bool | atIssueLimit () const override |
| atIssueLimit - Return true if no more instructions may be issued in this cycle. More... | |
| void | EmitInstruction (SUnit *SU) override |
| EmitInstruction - This callback is invoked when an instruction is emitted, to advance the hazard state. More... | |
| void | EmitInstruction (MachineInstr *MI) override |
| This overload will be used when the hazard recognizer is being used by a non-scheduling pass, which does not use SUnits. More... | |
| HazardType | getHazardType (SUnit *SU, int Stalls) override |
| getHazardType - Return the hazard type of emitting this node. More... | |
| void | EmitNoop () override |
| EmitNoop - This callback is invoked when a noop was added to the instruction stream. More... | |
| unsigned | PreEmitNoops (SUnit *SU) override |
| PreEmitNoops - This callback is invoked prior to emitting an instruction. More... | |
| unsigned | PreEmitNoops (MachineInstr *) override |
| This overload will be used when the hazard recognizer is being used by a non-scheduling pass, which does not use SUnits. More... | |
| void | AdvanceCycle () override |
| AdvanceCycle - This callback is invoked whenever the next top-down instruction to be scheduled cannot issue in the current cycle, either because of latency or resource conflicts. More... | |
| void | RecedeCycle () override |
| RecedeCycle - This callback is invoked whenever the next bottom-up instruction to be scheduled cannot issue in the current cycle, either because of latency or resource conflicts. More... | |
Public Member Functions inherited from llvm::ScheduleHazardRecognizer | |
| ScheduleHazardRecognizer () | |
| virtual | ~ScheduleHazardRecognizer () |
| unsigned | getMaxLookAhead () const |
| bool | isEnabled () const |
| virtual void | Reset () |
| Reset - This callback is invoked when a new block of instructions is about to be schedule. More... | |
| virtual bool | ShouldPreferAnother (SUnit *) |
| ShouldPreferAnother - This callback may be invoked if getHazardType returns NoHazard. More... | |
Additional Inherited Members | |
Public Types inherited from llvm::ScheduleHazardRecognizer | |
| enum | HazardType { NoHazard, Hazard, NoopHazard } |
Protected Attributes inherited from llvm::ScheduleHazardRecognizer | |
| unsigned | MaxLookAhead |
| MaxLookAhead - Indicate the number of cycles in the scoreboard state. More... | |
Definition at line 29 of file GCNHazardRecognizer.h.
| GCNHazardRecognizer::GCNHazardRecognizer | ( | const MachineFunction & | MF | ) |
Definition at line 26 of file GCNHazardRecognizer.cpp.
References llvm::ScheduleHazardRecognizer::MaxLookAhead.
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overridevirtual |
AdvanceCycle - This callback is invoked whenever the next top-down instruction to be scheduled cannot issue in the current cycle, either because of latency or resource conflicts.
This should increment the internal state of the hazard recognizer so that previously "Hazard" instructions will now not be hazards.
Reimplemented from llvm::ScheduleHazardRecognizer.
Definition at line 144 of file GCNHazardRecognizer.cpp.
References llvm::ScheduleHazardRecognizer::getMaxLookAhead(), llvm::SIInstrInfo::getNumWaitStates(), i, fuzzer::min(), llvm::ARM_MB::ST, and TII.
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inlineoverridevirtual |
atIssueLimit - Return true if no more instructions may be issued in this cycle.
FIXME: remove this once MachineScheduler is the only client.
Reimplemented from llvm::ScheduleHazardRecognizer.
Definition at line 58 of file GCNHazardRecognizer.h.
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overridevirtual |
EmitInstruction - This callback is invoked when an instruction is emitted, to advance the hazard state.
Reimplemented from llvm::ScheduleHazardRecognizer.
Definition at line 33 of file GCNHazardRecognizer.cpp.
References llvm::SUnit::getInstr().
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overridevirtual |
This overload will be used when the hazard recognizer is being used by a non-scheduling pass, which does not use SUnits.
Reimplemented from llvm::ScheduleHazardRecognizer.
Definition at line 37 of file GCNHazardRecognizer.cpp.
References MI.
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overridevirtual |
EmitNoop - This callback is invoked when a noop was added to the instruction stream.
Reimplemented from llvm::ScheduleHazardRecognizer.
Definition at line 140 of file GCNHazardRecognizer.cpp.
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overridevirtual |
getHazardType - Return the hazard type of emitting this node.
There are three possible results. Either:
Reimplemented from llvm::ScheduleHazardRecognizer.
Definition at line 69 of file GCNHazardRecognizer.cpp.
References llvm::SUnit::getInstr(), llvm::MachineInstr::getOpcode(), isDivFMas(), llvm::SIInstrInfo::isDPP(), isRFE(), isRWLane(), isSGetReg(), llvm::SIInstrInfo::isSMRD(), isSSetReg(), llvm::SIInstrInfo::isVALU(), llvm::SIInstrInfo::isVMEM(), MI, llvm::ScheduleHazardRecognizer::NoHazard, and llvm::ScheduleHazardRecognizer::NoopHazard.
PreEmitNoops - This callback is invoked prior to emitting an instruction.
It should return the number of noops to emit prior to the provided instruction. Note: This is only used during PostRA scheduling. EmitNoop is not called for these noops.
Reimplemented from llvm::ScheduleHazardRecognizer.
Definition at line 102 of file GCNHazardRecognizer.cpp.
References llvm::SUnit::getInstr().
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overridevirtual |
This overload will be used when the hazard recognizer is being used by a non-scheduling pass, which does not use SUnits.
Reimplemented from llvm::ScheduleHazardRecognizer.
Definition at line 106 of file GCNHazardRecognizer.cpp.
References llvm::MachineInstr::getOpcode(), isDivFMas(), llvm::SIInstrInfo::isDPP(), isRFE(), isRWLane(), isSGetReg(), llvm::SIInstrInfo::isSMRD(), isSSetReg(), llvm::SIInstrInfo::isVALU(), and llvm::SIInstrInfo::isVMEM().
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overridevirtual |
RecedeCycle - This callback is invoked whenever the next bottom-up instruction to be scheduled cannot issue in the current cycle, either because of latency or resource conflicts.
Reimplemented from llvm::ScheduleHazardRecognizer.
Definition at line 173 of file GCNHazardRecognizer.cpp.
References llvm_unreachable.
1.8.6