To use KnownBitsInfo analysis in a pass, KnownBitsInfo &Info = getAnalysis<GISelKnownBitsInfoAnalysis>().get(MF); Add to observer if the Info is caching. More...
#include "llvm/CodeGen/GlobalISel/GISelKnownBits.h"
Public Member Functions | |
| GISelKnownBitsAnalysis () | |
| GISelKnownBits & | get (MachineFunction &MF) |
| void | getAnalysisUsage (AnalysisUsage &AU) const override |
| getAnalysisUsage - This function should be overriden by passes that need analysis information to do their job. | |
| bool | runOnMachineFunction (MachineFunction &MF) override |
| runOnMachineFunction - This method must be overloaded to perform the desired machine code transformation or analysis. | |
| void | releaseMemory () override |
| 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. | |
 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. | |
| 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. | |
| virtual bool | runOnFunction (Function &F)=0 |
| runOnFunction - Virtual method overriden by subclasses to do the per-function processing of the pass. | |
| 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. | |
| PassManagerType | getPotentialPassManagerType () const override |
| Return what kind of Pass Manager can manage this pass. | |
| 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 |
| virtual StringRef | getPassName () const |
| getPassName - Return a nice clean name for a pass. | |
| AnalysisID | getPassID () const |
| getPassID - Return the PassID number that corresponds to this pass. | |
| virtual bool | doInitialization (Module &) |
| doInitialization - Virtual method overridden by subclasses to do any necessary initialization before any pass is run. | |
| virtual bool | doFinalization (Module &) |
| doFinalization - Virtual method overriden by subclasses to do any necessary clean up after all passes have run. | |
| virtual void | print (raw_ostream &OS, const Module *M) const |
| print - Print out the internal state of the pass. | |
| void | dump () const |
| virtual Pass * | createPrinterPass (raw_ostream &OS, const std::string &Banner) const =0 |
| createPrinterPass - Get a Pass appropriate to print the IR this pass operates on (Module, Function or MachineFunction). | |
| virtual void | assignPassManager (PMStack &, PassManagerType) |
| Each pass is responsible for assigning a pass manager to itself. | |
| virtual void | preparePassManager (PMStack &) |
| Check if available pass managers are suitable for this pass or not. | |
| virtual PassManagerType | getPotentialPassManagerType () const |
| Return what kind of Pass Manager can manage this pass. | |
| void | setResolver (AnalysisResolver *AR) |
| AnalysisResolver * | getResolver () const |
| virtual void | getAnalysisUsage (AnalysisUsage &) const |
| getAnalysisUsage - This function should be overriden by passes that need analysis information to do their job. | |
| 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. | |
| virtual void * | getAdjustedAnalysisPointer (AnalysisID ID) |
| getAdjustedAnalysisPointer - This method is used when a pass implements an analysis interface through multiple inheritance. | |
| 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. | |
| 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. | |
| bool | mustPreserveAnalysisID (char &AID) const |
| mustPreserveAnalysisID - This method serves the same function as getAnalysisIfAvailable, but works if you just have an AnalysisID. | |
| 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. | |
| template<typename AnalysisType > | |
| AnalysisType & | getAnalysis (Function &F, bool *Changed=nullptr) |
| getAnalysis<AnalysisType>() - This function is used by subclasses to get to the analysis information that they claim to use by overriding the getAnalysisUsage function. | |
| template<typename AnalysisType > | |
| AnalysisType & | getAnalysisID (AnalysisID PI) const |
| template<typename AnalysisType > | |
| AnalysisType & | getAnalysisID (AnalysisID PI, Function &F, bool *Changed=nullptr) |
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) | |
| virtual bool | runOnMachineFunction (MachineFunction &MF)=0 |
| runOnMachineFunction - This method must be overloaded to perform the desired machine code transformation or analysis. | |
| void | getAnalysisUsage (AnalysisUsage &AU) const override |
| getAnalysisUsage - Subclasses that override getAnalysisUsage must call this. | |
| virtual MachineFunctionProperties | getRequiredProperties () const |
| virtual MachineFunctionProperties | getSetProperties () const |
| 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. | |
Detailed Description
To use KnownBitsInfo analysis in a pass, KnownBitsInfo &Info = getAnalysis<GISelKnownBitsInfoAnalysis>().get(MF); Add to observer if the Info is caching.
WrapperObserver.addObserver(Info); Eventually add other features such as caching/ser/deserializing to MIR etc. Those implementations can derive from GISelKnownBits and override computeKnownBitsImpl.
Definition at line 113 of file GISelKnownBits.h.
Constructor & Destructor Documentation
◆ GISelKnownBitsAnalysis()
|
inline |
Definition at line 118 of file GISelKnownBits.h.
References llvm::PassRegistry::getPassRegistry(), and llvm::initializeGISelKnownBitsAnalysisPass().
Member Function Documentation
◆ get()
| GISelKnownBits & GISelKnownBitsAnalysis::get | ( | MachineFunction & | MF | ) |
Definition at line 853 of file GISelKnownBits.cpp.
References llvm::TargetMachine::getOptLevel(), llvm::MachineFunction::getTarget(), MaxDepth, and llvm::None.
◆ 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 844 of file GISelKnownBits.cpp.
References llvm::MachineFunctionPass::getAnalysisUsage(), and llvm::AnalysisUsage::setPreservesAll().
◆ releaseMemory()
|
inlineoverridevirtual |
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.
The default behavior of passes is to hold onto memory for the entire duration of their lifetime (which is the entire compile time). For pipelined passes, this is not a big deal because that memory gets recycled every time the pass is invoked on another program unit. For IP passes, it is more important to free memory when it is unused.
Optionally implement this function to release pass memory when it is no longer used.
Reimplemented from llvm::Pass.
Definition at line 124 of file GISelKnownBits.h.
References Info.
◆ runOnMachineFunction()
|
overridevirtual |
runOnMachineFunction - This method must be overloaded to perform the desired machine code transformation or analysis.
Implements llvm::MachineFunctionPass.
Definition at line 849 of file GISelKnownBits.cpp.
Member Data Documentation
◆ ID
|
static |
Definition at line 117 of file GISelKnownBits.h.
The documentation for this class was generated from the following files:
- include/llvm/CodeGen/GlobalISel/GISelKnownBits.h
- lib/CodeGen/GlobalISel/GISelKnownBits.cpp
