LLVM: llvm::InstrItineraryData Class Reference (original) (raw)
Itinerary data supplied by a subtarget to be used by a target. More...
#include "[llvm/MC/MCInstrItineraries.h](MCInstrItineraries%5F8h%5Fsource.html)"
| Public Member Functions | |
|---|---|
| InstrItineraryData ()=default | |
| InstrItineraryData (const MCSchedModel &SM, const InstrStage *S, const unsigned *OS, const unsigned *F) | |
| bool | isEmpty () const |
| Returns true if there are no itineraries. | |
| bool | isEndMarker (unsigned ItinClassIndx) const |
| Returns true if the index is for the end marker itinerary. | |
| const InstrStage * | beginStage (unsigned ItinClassIndx) const |
| Return the first stage of the itinerary. | |
| const InstrStage * | endStage (unsigned ItinClassIndx) const |
| Return the last+1 stage of the itinerary. | |
| unsigned | getStageLatency (unsigned ItinClassIndx) const |
| Return the total stage latency of the given class. | |
| std::optional< unsigned > | getOperandCycle (unsigned ItinClassIndx, unsigned OperandIdx) const |
| Return the cycle for the given class and operand. | |
| bool | hasPipelineForwarding (unsigned DefClass, unsigned DefIdx, unsigned UseClass, unsigned UseIdx) const |
| Return true if there is a pipeline forwarding between instructions of itinerary classes DefClass and UseClasses so that value produced by an instruction of itinerary class DefClass, operand index DefIdx can be bypassed when it's read by an instruction of itinerary class UseClass, operand index UseIdx. | |
| std::optional< unsigned > | getOperandLatency (unsigned DefClass, unsigned DefIdx, unsigned UseClass, unsigned UseIdx) const |
| Compute and return the use operand latency of a given itinerary class and operand index if the value is produced by an instruction of the specified itinerary class and def operand index. | |
| int | getNumMicroOps (unsigned ItinClassIndx) const |
| Return the number of micro-ops that the given class decodes to. |
| Public Attributes | |
|---|---|
| MCSchedModel | SchedModel |
| Basic machine properties. | |
| const InstrStage * | Stages = nullptr |
| Array of stages selected. | |
| const unsigned * | OperandCycles = nullptr |
| Array of operand cycles selected. | |
| const unsigned * | Forwardings = nullptr |
| Array of pipeline forwarding paths. | |
| const InstrItinerary * | Itineraries |
| Array of itineraries selected. |
Itinerary data supplied by a subtarget to be used by a target.
Definition at line 110 of file MCInstrItineraries.h.
| llvm::InstrItineraryData::InstrItineraryData ( ) | default |
|---|
◆ InstrItineraryData() [2/2]
◆ beginStage()
◆ endStage()
◆ getNumMicroOps()
| int llvm::InstrItineraryData::getNumMicroOps ( unsigned ItinClassIndx) const | inline |
|---|
◆ getOperandCycle()
| std::optional< unsigned > llvm::InstrItineraryData::getOperandCycle ( unsigned ItinClassIndx, unsigned OperandIdx ) const | inline |
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◆ getOperandLatency()
◆ getStageLatency()
| unsigned llvm::InstrItineraryData::getStageLatency ( unsigned ItinClassIndx) const | inline |
|---|
◆ hasPipelineForwarding()
Return true if there is a pipeline forwarding between instructions of itinerary classes DefClass and UseClasses so that value produced by an instruction of itinerary class DefClass, operand index DefIdx can be bypassed when it's read by an instruction of itinerary class UseClass, operand index UseIdx.
Definition at line 186 of file MCInstrItineraries.h.
References Forwardings, and Itineraries.
Referenced by getOperandLatency().
◆ isEmpty()
| bool llvm::InstrItineraryData::isEmpty ( ) const | inline |
|---|
Returns true if there are no itineraries.
Definition at line 127 of file MCInstrItineraries.h.
References Itineraries.
Referenced by llvm::TargetInstrInfo::getInstrLatency(), llvm::ARMBaseInstrInfo::getNumMicroOps(), getNumMicroOps(), llvm::TargetInstrInfo::getNumMicroOps(), getOperandCycle(), llvm::ARMBaseInstrInfo::getOperandLatency(), llvm::ARMBaseInstrInfo::getOperandLatency(), getOperandLatency(), llvm::TargetInstrInfo::getOperandLatency(), getStageLatency(), llvm::TargetInstrInfo::hasLowDefLatency(), and llvm::MachinePipeliner::runOnMachineFunction().
◆ isEndMarker()
| bool llvm::InstrItineraryData::isEndMarker ( unsigned ItinClassIndx) const | inline |
|---|
◆ Forwardings
◆ Itineraries
◆ OperandCycles
const unsigned* llvm::InstrItineraryData::OperandCycles = nullptr
◆ SchedModel
◆ Stages
The documentation for this class was generated from the following file:
- include/llvm/MC/MCInstrItineraries.h