This file contains implementations for different VPlan recipes. More...

#include "LoopVectorizationPlanner.h"
#include "VPlan.h"
#include "VPlanHelpers.h"
#include "VPlanPatternMatch.h"
#include "VPlanUtils.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/SmallVectorExtras.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Analysis/AssumptionCache.h"
#include "llvm/Analysis/IVDescriptors.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/ScalarEvolutionExpressions.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/ProfDataUtils.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/Value.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Transforms/Utils/LoopUtils.h"
#include <cassert>

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

Macros
#define	LV_NAME "loop-vectorize"
#define	DEBUG_TYPE LV_NAME

Functions
static unsigned	getCalledFnOperandIndex (ArrayRef< VPValue * > Operands)
	For call VPInstruction operands, return the operand index of the called function.
static Function *	getCalledFunction (ArrayRef< VPValue * > Operands)
	For call VPInstruction operands, return the called function.
static Instruction::BinaryOps	getSubRecurOpcode (RecurKind Kind)
static void	executePhiRecipe (VPSingleDefRecipe *R, VPPhiAccessors &Phi, VPTransformState &State, bool IsScalar, const Twine &Name)
	Shared execute logic for VPPhi and VPWidenPHIRecipe.
static VPExecutionFrequency	getExecutionFrequencyFromMD (const MDNode *Node)
	Returns the execution frequency recorded in `Node`.
static void	printRecurrenceKind (raw_ostream &OS, const RecurKind &Kind)
static const ConstantFP *	getConstantFP (const VPValue *V)
	Returns the ConstantFP `V` wraps, or nullptr if it does not wrap one.
static const SCEV *	getAddressAccessSCEV (const VPValue Ptr, PredicatedScalarEvolution &PSE, const Loop L)
	Returns a SCEV expression for `Ptr` if it is a pointer computation for which the legacy cost model computes a SCEV expression when computing the address cost.
static Value *	createBitOrPointerCast (IRBuilderBase &Builder, Value V, VectorType DstVTy, const DataLayout &DL)
static Value *	interleaveVectors (IRBuilderBase &Builder, ArrayRef< Value * > Vals, const Twine &Name)
	Return a vector containing interleaved elements from multiple smaller input vectors.

Variables
static cl::opt< bool >	VPlanPrintMetadata ("vplan-print-metadata", cl::init(true), cl::Hidden, cl::desc("Controls the printing of recipe metadata when debugging."))

Detailed Description

This file contains implementations for different VPlan recipes.

Definition in file VPlanRecipes.cpp.

Macro Definition Documentation

◆ DEBUG_TYPE

#define DEBUG_TYPE LV_NAME

Definition at line 48 of file VPlanRecipes.cpp.

◆ LV_NAME

#define LV_NAME "loop-vectorize"

Definition at line 47 of file VPlanRecipes.cpp.

Function Documentation

◆ createBitOrPointerCast()

Value * createBitOrPointerCast	(	IRBuilderBase &	Builder,
		Value *	V,
		VectorType *	DstVTy,
		const DataLayout &	DL )

static

Definition at line 4508 of file VPlanRecipes.cpp.

References assert(), llvm::cast(), DL, llvm::VectorType::get(), llvm::Type::getIntNTy(), llvm::CastInst::isBitOrNoopPointerCastable(), llvm::Type::isFloatingPointTy(), and llvm::Type::isPointerTy().

Referenced by llvm::VPInterleaveEVLRecipe::execute(), and llvm::VPInterleaveRecipe::execute().

◆ executePhiRecipe()

void executePhiRecipe	(	VPSingleDefRecipe *	R,
		VPPhiAccessors &	Phi,
		VPTransformState &	State,
		bool	IsScalar,
		const Twine &	Name )

static

Shared execute logic for VPPhi and VPWidenPHIRecipe.

Creates a PHI node, adds incoming values, and stores the result in State. For header phis, only the preheader incoming value is added; the backedge is fixed up later by VPlan::execute().

Definition at line 1957 of file VPlanRecipes.cpp.

References llvm::PHINode::addIncoming(), llvm::Value::getType(), and llvm::VPBlockUtils::isHeader().

Referenced by llvm::VPPhi::execute(), and llvm::VPWidenPHIRecipe::execute().

◆ getAddressAccessSCEV()

const SCEV * getAddressAccessSCEV	(	const VPValue *	Ptr,
		PredicatedScalarEvolution &	PSE,
		const Loop *	L )

static

Returns a SCEV expression for Ptr if it is a pointer computation for which the legacy cost model computes a SCEV expression when computing the address cost.

Computing SCEVs for VPValues is incomplete and returns SCEVCouldNotCompute in cases the legacy cost model can compute SCEVs. In those cases we fall back to the legacy cost model. Otherwise return nullptr.

Definition at line 3975 of file VPlanRecipes.cpp.

References llvm::vputils::getSCEVExprForVPValue(), llvm::PredicatedScalarEvolution::getSE(), llvm::isa(), and llvm::vputils::isAddressSCEVForCost().

◆ getCalledFnOperandIndex()

unsigned getCalledFnOperandIndex ( ArrayRef< VPValue * > Operands )

static

For call VPInstruction operands, return the operand index of the called function.

The function is either the last operand (for unmasked calls) or the second-to-last operand (for masked calls).

Definition at line 449 of file VPlanRecipes.cpp.

References AbstractManglingParser< Derived, Alloc >::NumOps, assert(), llvm::cast(), llvm::dyn_cast(), getValue(), llvm::isa(), and Operands.

Referenced by getCalledFunction(), and llvm::VPInstruction::getNumOperandsForOpcode().

◆ getCalledFunction()

Function * getCalledFunction ( ArrayRef< VPValue * > Operands )

static

For call VPInstruction operands, return the called function.

Definition at line 460 of file VPlanRecipes.cpp.

References llvm::cast(), getCalledFnOperandIndex(), getValue(), and Operands.

◆ getConstantFP()

const ConstantFP * getConstantFP ( const VPValue * V )

static

Returns the ConstantFP V wraps, or nullptr if it does not wrap one.

Definition at line 3049 of file VPlanRecipes.cpp.

References C(), and llvm::dyn_cast().

Referenced by llvm::VPDerivedIVRecipe::computeCost().

◆ getExecutionFrequencyFromMD()

VPExecutionFrequency getExecutionFrequencyFromMD ( const MDNode * Node )

static

Returns the execution frequency recorded in Node.

Definition at line 2107 of file VPlanRecipes.cpp.

References llvm::vputils::AlwaysExecutesFreq, assert(), llvm::mdconst::extract(), and uint64_t.

Referenced by llvm::VPIRMetadata::getExecutionFrequency(), and llvm::VPIRMetadata::print().

◆ getSubRecurOpcode()

Instruction::BinaryOps getSubRecurOpcode ( RecurKind Kind )

static

Definition at line 737 of file VPlanRecipes.cpp.

References llvm::FSub, llvm_unreachable, and llvm::Sub.

◆ interleaveVectors()

Value * interleaveVectors	(	IRBuilderBase &	Builder,
		ArrayRef< Value * >	Vals,
		const Twine &	Name )

static

Return a vector containing interleaved elements from multiple smaller input vectors.

Definition at line 4540 of file VPlanRecipes.cpp.

References assert(), llvm::cast(), llvm::concatenateVectors(), llvm::createInterleaveMask(), getType(), and llvm::ArrayRef< T >::size().

Referenced by llvm::VPInterleaveEVLRecipe::execute(), and llvm::VPInterleaveRecipe::execute().

◆ printRecurrenceKind()

void printRecurrenceKind	(	raw_ostream &	OS,
		const RecurKind &	Kind )

static

Definition at line 2663 of file VPlanRecipes.cpp.

References llvm::Add, llvm::AddChainWithSubs, llvm::And, llvm::AnyOf, llvm::FAdd, llvm::FAddChainWithSubs, llvm::FindIV, llvm::FindLast, llvm::FMax, llvm::FMaximum, llvm::FMaximumNum, llvm::FMaxNum, llvm::FMin, llvm::FMinimum, llvm::FMinimumNum, llvm::FMinNum, llvm::FMul, llvm::FMulAdd, llvm::FSub, llvm::Mul, llvm::None, llvm::Or, llvm::SMax, llvm::SMin, llvm::Sub, llvm::UMax, llvm::UMin, and llvm::Xor.

Referenced by llvm::VPIRFlags::printFlags(), llvm::VPReductionPHIRecipe::printRecipe(), and llvm::VPReductionRecipe::printRecipe().

Variable Documentation

◆ VPlanPrintMetadata

cl::opt< bool > VPlanPrintMetadata("vplan-print-metadata", cl::init(true), cl::Hidden, cl::desc("Controls the printing of recipe metadata when debugging."))	(	"vplan-print-metadata"	,
		cl::init(true)	,
		cl::Hidden	,
		cl::desc("Controls the printing of recipe metadata when debugging.")	)

static

Referenced by llvm::VPIRMetadata::print().

Namespaces

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ DEBUG_TYPE

◆ LV_NAME

Function Documentation

◆ createBitOrPointerCast()

◆ executePhiRecipe()

◆ getAddressAccessSCEV()

◆ getCalledFnOperandIndex()

◆ getCalledFunction()

◆ getConstantFP()

◆ getExecutionFrequencyFromMD()

◆ getSubRecurOpcode()

◆ interleaveVectors()

◆ printRecurrenceKind()

Variable Documentation

◆ VPlanPrintMetadata