TargetTransformInfo.h File Reference

This pass exposes codegen information to IR-level passes. More...

#include "llvm/ADT/SmallBitVector.h"
#include "llvm/IR/FMF.h"
#include "llvm/IR/InstrTypes.h"
#include "llvm/IR/PassManager.h"
#include "llvm/Pass.h"
#include "llvm/Support/AtomicOrdering.h"
#include "llvm/Support/BranchProbability.h"
#include "llvm/Support/InstructionCost.h"
#include <functional>
#include <optional>
#include <utility>

Go to the source code of this file.

Classes
struct	llvm::MemIntrinsicInfo
	Information about a load/store intrinsic defined by the target. More...
struct	llvm::HardwareLoopInfo
	Attributes of a target dependent hardware loop. More...
class	llvm::IntrinsicCostAttributes
struct	llvm::TailFoldingInfo
class	llvm::TargetTransformInfo
	This pass provides access to the codegen interfaces that are needed for IR-level transformations. More...
struct	llvm::TargetTransformInfo::PointersChainInfo
	Describe known properties for a set of pointers. More...
struct	llvm::TargetTransformInfo::LSRCost
struct	llvm::TargetTransformInfo::UnrollingPreferences
	Parameters that control the generic loop unrolling transformation. More...
struct	llvm::TargetTransformInfo::PeelingPreferences
struct	llvm::TargetTransformInfo::MemCmpExpansionOptions
	Returns options for expansion of memcmp. IsZeroCmp is. More...
struct	llvm::TargetTransformInfo::OperandValueInfo
struct	llvm::TargetTransformInfo::ReductionFlags
	Flags describing the kind of vector reduction. More...
struct	llvm::TargetTransformInfo::VPLegalization
class	llvm::TargetTransformInfo::Concept
class	llvm::TargetIRAnalysis
	Analysis pass providing the TargetTransformInfo. More...
class	llvm::TargetTransformInfoWrapperPass
	Wrapper pass for TargetTransformInfo. More...

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.
namespace	llvm::Intrinsic
	This namespace contains an enum with a value for every intrinsic/builtin function known by LLVM.

Typedefs
typedef TargetTransformInfo	llvm::TTI

Enumerations
enum class	llvm::TailFoldingStyle {   llvm::None , llvm::Data , llvm::DataWithoutLaneMask , llvm::DataAndControlFlow ,   llvm::DataAndControlFlowWithoutRuntimeCheck , llvm::DataWithEVL }

Functions
ImmutablePass *	llvm::createTargetTransformInfoWrapperPass (TargetIRAnalysis TIRA)
	Create an analysis pass wrapper around a TTI object.

Detailed Description

This pass exposes codegen information to IR-level passes.

Every transformation that uses codegen information is broken into three parts:

1. The IR-level analysis pass.
2. The IR-level transformation interface which provides the needed information.
3. Codegen-level implementation which uses target-specific hooks.

This file defines #2, which is the interface that IR-level transformations use for querying the codegen.

Definition in file TargetTransformInfo.h.