LoopVectorizationPlanner.h File Reference

This file provides a LoopVectorizationPlanner class. More...

#include "VPlan.h"
#include "llvm/ADT/SmallSet.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/Support/InstructionCost.h"

Go to the source code of this file.

Classes
class	llvm::VPBuilder
	VPlan-based builder utility analogous to IRBuilder. More...
class	llvm::VPBuilder::VPInsertPoint
	InsertPoint - A saved insertion point. More...
class	llvm::VPBuilder::InsertPointGuard
	RAII object that stores the current insertion point and restores it when the object is destroyed. More...
struct	llvm::VectorizationFactor
	TODO: The following VectorizationFactor was pulled out of LoopVectorizationCostModel class. More...
struct	llvm::FixedScalableVFPair
	A class that represents two vectorization factors (initialized with 0 by default). More...
class	llvm::VFSelectionContext
	Holds state needed to make cost decisions before computing costs per-VF, including the maximum VFs. More...
class	llvm::LoopVectorizationPlanner
	Planner drives the vectorization process after having passed Legality checks. More...

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

Functions
std::optional< unsigned >	llvm::getMaxVScale (const Function &F, const TargetTransformInfo &TTI)
void	llvm::reportVectorizationInfo (const StringRef Msg, const StringRef ORETag, OptimizationRemarkEmitter *ORE, const Loop *TheLoop, Instruction *I=nullptr, DebugLoc DL={})
	Reports an informative message: print Msg for debugging purposes as well as an optimization remark.

Variables
cl::opt< bool >	llvm::EnableVPlanNativePath
cl::opt< unsigned >	llvm::ForceTargetInstructionCost
cl::opt< bool >	llvm::PreferInLoopReductions

Detailed Description

This file provides a LoopVectorizationPlanner class.

InnerLoopVectorizer vectorizes loops which contain only one basic LoopVectorizationPlanner - drives the vectorization process after having passed Legality checks. The planner builds and optimizes the Vectorization Plans which record the decisions how to vectorize the given loop. In particular, represent the control-flow of the vectorized version, the replication of instructions that are to be scalarized, and interleave access groups.

Also provides a VPlan-based builder utility analogous to IRBuilder. It provides an instruction-level API for generating VPInstructions while abstracting away the Recipe manipulation details.

Definition in file LoopVectorizationPlanner.h.