LLVM: llvm::mca Namespace Reference (original) (raw)

◆ ResourceRef

◆ ResourceUse

◆ SourceRef

◆ UniqueInstrument

◆ ResourceStateEvent

Used to notify the internal state of a processor resource.

A processor resource is available if it is not reserved, and there are available slots in the buffer. A processor resource is unavailable if it is either reserved, or the associated buffer is full. A processor resource with a buffer size of -1 is always available if it is not reserved.

Values of type ResourceStateEvent are returned by method ResourceManager::canBeDispatched()

The naming convention for resource state events is:

• Event names start with prefix RS_
• Prefix RS_ is followed by a string describing the actual resource state.

Definition at line 41 of file ResourceManager.h.

◆ addRegisterReadWrite()

◆ checkRegisterHazard()

◆ computeBlockRThroughput()

◆ computeMaxLatency()

◆ computeProcResourceMasks()

Populates vector Masks with processor resource masks.

The number of bits set in a mask depends on the processor resource type. Each processor resource mask has at least one bit set. For groups, the number of bits set in the mask is equal to the cardinality of the group plus one. Excluding the most significant bit, the remaining bits in the mask identify processor resources that are part of the group.

Example:

ResourceA – Mask: 0b001 ResourceB – Mask: 0b010 ResourceAB – Mask: 0b100 U (ResourceA::Mask | ResourceB::Mask) == 0b111

ResourceAB is a processor resource group containing ResourceA and ResourceB. Each resource mask uniquely identifies a resource; both ResourceA and ResourceB only have one bit set. ResourceAB is a group; excluding the most significant bit in the mask, the remaining bits identify the composition of the group.

Resource masks are used by the ResourceManager to solve set membership problems with simple bit manipulation operations.

Definition at line 40 of file Support.cpp.

References assert(), llvm::dbgs(), E(), llvm::format_decimal(), llvm::format_hex(), llvm::MCSchedModel::getNumProcResourceKinds(), llvm::MCSchedModel::getProcResource(), I, LLVM_DEBUG, and llvm::ArrayRef< T >::size().

Referenced by llvm::mca::InstrBuilder::InstrBuilder(), and llvm::mca::InstructionTables::InstructionTables().

◆ findFirstWriteBackCycle()

◆ getEEWAndEMUL()

◆ getResourceStateIndex()

◆ getStrategyFor()

◆ hashMCInst()

◆ hashMCOperand()

◆ hasResourceHazard()

◆ initializeUsedResources()

Definition at line 43 of file InstrBuilder.cpp.

References A(), assert(), B(), llvm::bit_floor(), llvm::MCProcResourceDesc::BufferSize, llvm::dbgs(), E(), llvm::SmallVectorImpl< T >::emplace_back(), llvm::format_hex(), llvm::MCSchedModel::getNumProcResourceKinds(), llvm::MCSchedModel::getProcResource(), getResourceStateIndex(), llvm::MCSchedModel::getSchedClassName(), llvm::MCSubtargetInfo::getSchedModel(), llvm::MCSubtargetInfo::getWriteProcResBegin(), llvm::APInt::getZExtValue(), I, InstructionError< T >::ID, LLVM_DEBUG, llvm::MCProcResourceDesc::Name, llvm::WithColor::note(), llvm::MCSchedClassDesc::NumWriteProcResEntries, llvm::popcount(), llvm::MCWriteProcResEntry::ProcResourceIdx, llvm::MCWriteProcResEntry::ReleaseAtCycle, llvm::APInt::setBit(), llvm::SmallVectorTemplateCommon< T, typename >::size(), llvm::sort(), llvm::MCProcResourceDesc::SuperIdx, and llvm::WithColor::warning().

◆ isNonArtificial()

◆ opcodeHasEEWAndEMULInfo()

◆ operator<<()

◆ selectImpl()

◆ STATISTIC()

◆ toHWStallEventType()

Definition at line 26 of file ExecuteStage.cpp.

References llvm::mca::HWStallEvent::DispatchGroupStall, llvm::mca::HWStallEvent::Invalid, llvm_unreachable, llvm::mca::HWStallEvent::LoadQueueFull, llvm::mca::Scheduler::SC_AVAILABLE, llvm::mca::Scheduler::SC_BUFFERS_FULL, llvm::mca::Scheduler::SC_DISPATCH_GROUP_STALL, llvm::mca::Scheduler::SC_LOAD_QUEUE_FULL, llvm::mca::Scheduler::SC_STORE_QUEUE_FULL, llvm::mca::HWStallEvent::SchedulerQueueFull, and llvm::mca::HWStallEvent::StoreQueueFull.

Referenced by llvm::mca::ExecuteStage::isAvailable().

◆ verifyInstructionEliminated()

◆ verifyOperands()

◆ InstructionError< T >::ID

◆ UNKNOWN_CYCLES

Definition at line 33 of file Instruction.h.

Referenced by llvm::mca::WriteState::addUser(), llvm::mca::WriteState::addUser(), llvm::mca::RegisterFile::checkRAWHazards(), llvm::mca::ReadState::cycleEvent(), llvm::mca::WriteState::cycleEvent(), findFirstWriteBackCycle(), llvm::mca::Instruction::Instruction(), llvm::mca::WriteState::isExecuted(), llvm::mca::RegisterFile::onInstructionExecuted(), llvm::mca::WriteState::onInstructionIssued(), llvm::mca::ReadState::ReadState(), llvm::mca::RegisterFile::removeRegisterWrite(), llvm::mca::Instruction::reset(), llvm::mca::ReadState::writeStartEvent(), and llvm::mca::WriteState::WriteState().