LoopInfo.h File Reference

#include "llvm/ADT/GraphTraits.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/IR/CFG.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/PassManager.h"
#include "llvm/Pass.h"
#include "llvm/Support/GenericLoopInfo.h"
#include <algorithm>
#include <optional>
#include <utility>

Go to the source code of this file.

Classes
class	llvm::Loop
	Represents a single loop in the control flow graph. More...
class	llvm::Loop::LocRange
	A range representing the start and end location of a loop. More...
struct	llvm::Loop::LoopBounds
	Below are some utilities to get the loop guard, loop bounds and induction variable, and to check if a given phinode is an auxiliary induction variable, if the loop is guarded, and if the loop is canonical. More...
class	llvm::LoopInfo
struct	llvm::GraphTraits< const Loop * >
struct	llvm::GraphTraits< Loop * >
class	llvm::LoopAnalysis
	Analysis pass that exposes the LoopInfo for a function. More...
class	llvm::LoopPrinterPass
	Printer pass for the LoopAnalysis results. More...
struct	llvm::LoopVerifierPass
	Verifier pass for the LoopAnalysis results. More...
class	llvm::LoopInfoWrapperPass
	The legacy pass manager's analysis pass to compute loop information. More...

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.

Functions
void	llvm::printLoop (Loop &L, raw_ostream &OS, const std::string &Banner="")
	Function to print a loop's contents as LLVM's text IR assembly.
MDNode *	llvm::findOptionMDForLoopID (MDNode *LoopID, StringRef Name)
	Find and return the loop attribute node for the attribute Name in LoopID.
MDNode *	llvm::findOptionMDForLoop (const Loop *TheLoop, StringRef Name)
	Find string metadata for a loop.
std::optional< bool >	llvm::getOptionalBoolLoopAttribute (const Loop *TheLoop, StringRef Name)
bool	llvm::getBooleanLoopAttribute (const Loop *TheLoop, StringRef Name)
	Returns true if Name is applied to TheLoop and enabled.
std::optional< int >	llvm::getOptionalIntLoopAttribute (const Loop *TheLoop, StringRef Name)
	Find named metadata for a loop with an integer value.
int	llvm::getIntLoopAttribute (const Loop *TheLoop, StringRef Name, int Default=0)
	Find named metadata for a loop with an integer value.
std::optional< const MDOperand * >	llvm::findStringMetadataForLoop (const Loop *TheLoop, StringRef Name)
	Find string metadata for loop.
bool	llvm::hasMustProgress (const Loop *L)
	Look for the loop attribute that requires progress within the loop.
bool	llvm::isMustProgress (const Loop *L)
	Return true if this loop can be assumed to make progress.
bool	llvm::isFinite (const Loop *L)
	Return true if this loop can be assumed to run for a finite number of iterations.
bool	llvm::isValidAsAccessGroup (MDNode *AccGroup)
	Return whether an MDNode might represent an access group.
llvm::MDNode *	llvm::makePostTransformationMetadata (llvm::LLVMContext &Context, MDNode *OrigLoopID, llvm::ArrayRef< llvm::StringRef > RemovePrefixes, llvm::ArrayRef< llvm::MDNode * > AddAttrs)
	Create a new LoopID after the loop has been transformed.

Variables
bool	llvm::VerifyLoopInfo = false
	Enable verification of loop info.