This pass is responsible for selecting generic machine instructions to target-specific instructions. More...
#include "llvm/CodeGen/GlobalISel/InstructionSelect.h"
Public Member Functions | |
| StringRef | getPassName () const override |
| getPassName - Return a nice clean name for a pass. More... | |
| void | getAnalysisUsage (AnalysisUsage &AU) const override |
| getAnalysisUsage - This function should be overriden by passes that need analysis information to do their job. More... | |
| MachineFunctionProperties | getRequiredProperties () const override |
| MachineFunctionProperties | getSetProperties () const override |
| InstructionSelect () | |
| bool | runOnMachineFunction (MachineFunction &MF) override |
| runOnMachineFunction - This method must be overloaded to perform the desired machine code transformation or analysis. More... | |
 Public Member Functions inherited from llvm::MachineFunctionPass | |
| bool | doInitialization (Module &) override |
| doInitialization - Virtual method overridden by subclasses to do any necessary initialization before any pass is run. More... | |
| Public Member Functions inherited from llvm::FunctionPass | |
| FunctionPass (char &pid) | |
| Pass * | createPrinterPass (raw_ostream &OS, const std::string &Banner) const override |
| createPrinterPass - Get a function printer pass. More... | |
| void | assignPassManager (PMStack &PMS, PassManagerType T) override |
| Find appropriate Function Pass Manager or Call Graph Pass Manager in the PM Stack and add self into that manager. More... | |
| PassManagerType | getPotentialPassManagerType () const override |
| Return what kind of Pass Manager can manage this pass. More... | |
| Public Member Functions inherited from llvm::Pass | |
| Pass (PassKind K, char &pid) | |
| Pass (const Pass &)=delete | |
| Pass & | operator= (const Pass &)=delete |
| virtual | ~Pass () |
| PassKind | getPassKind () const |
| AnalysisID | getPassID () const |
| getPassID - Return the PassID number that corresponds to this pass. More... | |
| virtual bool | doFinalization (Module &) |
| doFinalization - Virtual method overriden by subclasses to do any necessary clean up after all passes have run. More... | |
| virtual void | print (raw_ostream &OS, const Module *M) const |
| print - Print out the internal state of the pass. More... | |
| void | dump () const |
| virtual void | preparePassManager (PMStack &) |
| Check if available pass managers are suitable for this pass or not. More... | |
| void | setResolver (AnalysisResolver *AR) |
| AnalysisResolver * | getResolver () const |
| virtual void | releaseMemory () |
| releaseMemory() - This member can be implemented by a pass if it wants to be able to release its memory when it is no longer needed. More... | |
| virtual void * | getAdjustedAnalysisPointer (AnalysisID ID) |
| getAdjustedAnalysisPointer - This method is used when a pass implements an analysis interface through multiple inheritance. More... | |
| virtual ImmutablePass * | getAsImmutablePass () |
| virtual PMDataManager * | getAsPMDataManager () |
| virtual void | verifyAnalysis () const |
| verifyAnalysis() - This member can be implemented by a analysis pass to check state of analysis information. More... | |
| virtual void | dumpPassStructure (unsigned Offset=0) |
| template<typename AnalysisType > | |
| AnalysisType * | getAnalysisIfAvailable () const |
| getAnalysisIfAvailable<AnalysisType>() - Subclasses use this function to get analysis information that might be around, for example to update it. More... | |
| bool | mustPreserveAnalysisID (char &AID) const |
| mustPreserveAnalysisID - This method serves the same function as getAnalysisIfAvailable, but works if you just have an AnalysisID. More... | |
| template<typename AnalysisType > | |
| AnalysisType & | getAnalysis () const |
| getAnalysis<AnalysisType>() - This function is used by subclasses to get to the analysis information that they claim to use by overriding the getAnalysisUsage function. More... | |
| template<typename AnalysisType > | |
| AnalysisType & | getAnalysis (Function &F) |
| getAnalysis<AnalysisType>() - This function is used by subclasses to get to the analysis information that they claim to use by overriding the getAnalysisUsage function. More... | |
| template<typename AnalysisType > | |
| AnalysisType & | getAnalysisID (AnalysisID PI) const |
| template<typename AnalysisType > | |
| AnalysisType & | getAnalysisID (AnalysisID PI, Function &F) |
Static Public Attributes | |
| static char | ID = 0 |
Additional Inherited Members | |
| Static Public Member Functions inherited from llvm::Pass | |
| static const PassInfo * | lookupPassInfo (const void *TI) |
| static const PassInfo * | lookupPassInfo (StringRef Arg) |
| static Pass * | createPass (AnalysisID ID) |
| Protected Member Functions inherited from llvm::MachineFunctionPass | |
| MachineFunctionPass (char &ID) | |
| void | getAnalysisUsage (AnalysisUsage &AU) const override |
| getAnalysisUsage - Subclasses that override getAnalysisUsage must call this. More... | |
| virtual MachineFunctionProperties | getClearedProperties () const |
| Protected Member Functions inherited from llvm::FunctionPass | |
| bool | skipFunction (const Function &F) const |
| Optional passes call this function to check whether the pass should be skipped. More... | |
Detailed Description
This pass is responsible for selecting generic machine instructions to target-specific instructions.
It relies on the InstructionSelector provided by the target. Selection is done by examining blocks in post-order, and instructions in reverse order.
- Postcondition
- for all inst in MF: not isPreISelGenericOpcode(inst.opcode)
Definition at line 28 of file InstructionSelect.h.
Constructor & Destructor Documentation
◆ InstructionSelect()
| Select target instructions out of generic false InstructionSelect::InstructionSelect | ( | ) |
Definition at line 53 of file InstructionSelect.cpp.
References llvm::PassRegistry::getPassRegistry(), and llvm::initializeInstructionSelectPass().
Referenced by getSetProperties().
Member Function Documentation
◆ getAnalysisUsage()
|
overridevirtual |
getAnalysisUsage - This function should be overriden by passes that need analysis information to do their job.
If a pass specifies that it uses a particular analysis result to this function, it can then use the getAnalysis<AnalysisType>() function, below.
Reimplemented from llvm::Pass.
Definition at line 57 of file InstructionSelect.cpp.
References llvm::AnalysisUsage::addRequired(), llvm::MachineFunctionPass::getAnalysisUsage(), and llvm::getSelectionDAGFallbackAnalysisUsage().
Referenced by getPassName().
◆ getPassName()
|
inlineoverridevirtual |
getPassName - Return a nice clean name for a pass.
This usually implemented in terms of the name that is registered by one of the Registration templates, but can be overloaded directly.
Reimplemented from llvm::Pass.
Definition at line 31 of file InstructionSelect.h.
References getAnalysisUsage().
◆ getRequiredProperties()
|
inlineoverridevirtual |
Reimplemented from llvm::MachineFunctionPass.
Definition at line 35 of file InstructionSelect.h.
References llvm::MachineFunctionProperties::IsSSA, llvm::MachineFunctionProperties::Legalized, llvm::MachineFunctionProperties::RegBankSelected, and llvm::MachineFunctionProperties::set().
◆ getSetProperties()
|
inlineoverridevirtual |
Reimplemented from llvm::MachineFunctionPass.
Definition at line 42 of file InstructionSelect.h.
References InstructionSelect(), runOnMachineFunction(), llvm::MachineFunctionProperties::Selected, and llvm::MachineFunctionProperties::set().
◆ runOnMachineFunction()
|
overridevirtual |
runOnMachineFunction - This method must be overloaded to perform the desired machine code transformation or analysis.
Implements llvm::MachineFunctionPass.
Definition at line 63 of file InstructionSelect.cpp.
References assert(), llvm::MachineRegisterInfo::clearVirtRegTypes(), llvm::CodeGenCoverage::covered(), llvm::dbgs(), llvm::MachineRegisterInfo::def_empty(), llvm::MachineRegisterInfo::def_instr_begin(), llvm::DisableGISelLegalityCheck, E, llvm::CodeGenCoverage::emit(), llvm::MachineInstr::eraseFromParentAndMarkDBGValuesForRemoval(), llvm::MachineFunctionProperties::FailedISel, llvm::TargetSubtargetInfo::getInstructionSelector(), llvm::MachineFunction::getName(), llvm::MachineRegisterInfo::getNumVirtRegs(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineFunction::getProperties(), llvm::MachineOperand::getReg(), llvm::MachineRegisterInfo::getRegClass(), llvm::MachineRegisterInfo::getRegClassOrNull(), llvm::MachineFunction::getRegInfo(), llvm::TargetSubtargetInfo::getRegisterInfo(), llvm::LLT::getSizeInBits(), llvm::MachineFunction::getSubtarget(), llvm::MachineRegisterInfo::getType(), llvm::MachineFunctionProperties::hasProperty(), I, llvm::TargetRegisterInfo::index2VirtReg(), llvm::isTriviallyDead(), llvm::LLT::isValid(), llvm::TargetRegisterInfo::isVirtualRegister(), LLVM_DEBUG, llvm::machineFunctionIsIllegal(), llvm::make_range(), MI, MORE, MRI, llvm::post_order(), llvm::MachineRegisterInfo::replaceRegWith(), llvm::reportGISelFailure(), llvm::MachineFunction::size(), TRI, llvm::MachineRegisterInfo::use_empty(), and llvm::MachineRegisterInfo::use_instr_begin().
Referenced by getSetProperties().
Member Data Documentation
◆ ID
|
static |
Definition at line 30 of file InstructionSelect.h.
The documentation for this class was generated from the following files:
- include/llvm/CodeGen/GlobalISel/InstructionSelect.h
- lib/CodeGen/GlobalISel/InstructionSelect.cpp
