VPlanSLP.cpp File Reference

#include "VPlan.h"
#include "VPlanValue.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Analysis/VectorUtils.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/Value.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <cassert>
#include <optional>
#include <utility>

Include dependency graph for VPlanSLP.cpp:

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "vplan-slp"

Functions
static SmallVector< VPValue *, 4 >	getOperands (ArrayRef< VPValue * > Values, unsigned OperandIndex)
static bool	areCommutative (ArrayRef< VPValue * > Values)
static SmallVector< SmallVector< VPValue *, 4 >, 4 >	getOperands (ArrayRef< VPValue * > Values)
static std::optional< unsigned >	getOpcode (ArrayRef< VPValue * > Values)
	Returns the opcode of Values or ~0 if they do not all agree. More...
static bool	areConsecutiveOrMatch (VPInstruction *A, VPInstruction *B, VPInterleavedAccessInfo &IAI)
	Returns true if A and B access sequential memory if they are loads or stores or if they have identical opcodes otherwise. More...
static unsigned	getLAScore (VPValue *V1, VPValue *V2, unsigned MaxLevel, VPInterleavedAccessInfo &IAI)
	Implements getLAScore from Listing 7 in the paper. More...

Variables
static unsigned	LookaheadMaxDepth = 5

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "vplan-slp"

Definition at line 37 of file VPlanSLP.cpp.

Function Documentation

areCommutative()

static bool areCommutative ( ArrayRef< VPValue * >  Values )

static

Definition at line 165 of file VPlanSLP.cpp.

References getOpcode(), and llvm::Instruction::isCommutative().

Referenced by llvm::VPlanSlp::buildGraph().

areConsecutiveOrMatch()

static bool areConsecutiveOrMatch ( VPInstruction *  A, VPInstruction *  B, VPInterleavedAccessInfo &  IAI  )

static

Returns true if A and B access sequential memory if they are loads or stores or if they have identical opcodes otherwise.

Definition at line 202 of file VPlanSLP.cpp.

References B, llvm::VPInterleavedAccessInfo::getInterleaveGroup(), llvm::SPII::Load, and llvm::SPII::Store.

Referenced by getLAScore().

getLAScore()

static unsigned getLAScore ( VPValue *  V1, VPValue *  V2, unsigned  MaxLevel, VPInterleavedAccessInfo &  IAI  )

static

Implements getLAScore from Listing 7 in the paper.

Traverses and compares operands of V1 and V2 to MaxLevel.

Definition at line 218 of file VPlanSLP.cpp.

References areConsecutiveOrMatch(), I, and llvm::NVPTX::PTXLdStInstCode::V2.

getOpcode()

static std::optional<unsigned> getOpcode ( ArrayRef< VPValue * >  Values )

static

Returns the opcode of Values or ~0 if they do not all agree.

Definition at line 191 of file VPlanSLP.cpp.

References llvm::any_of().

Referenced by llvm::R600InstrInfo::analyzeBranch(), areCommutative(), areCompatibleCmpOps(), arePointersCompatible(), llvm::CanonicalLoopInfo::assertOK(), llvm::VPlanSlp::buildGraph(), buildNew(), llvm::ConstantFoldBinaryInstruction(), FoldBUILD_VECTOR(), llvm::SelectionDAG::FoldConstantArithmetic(), foldOperationIntoSelectOperand(), getAdjustedPtr(), llvm::RecurrenceDescriptor::getReductionOpChain(), isSignedMinMaxClamp(), LinearizeExprTree(), LLVMGetConstOpcode(), lowerV8I16Shuffle(), llvm::VPReplicateRecipe::print(), ReorganizeVector(), StripPointerGEPsAndCasts(), llvm::InstCombinerImpl::visitCallInst(), llvm::InstCombinerImpl::visitExtractElementInst(), and llvm::InstCombinerImpl::visitShl().

getOperands() [1/2]

static SmallVector<SmallVector<VPValue *, 4>, 4> getOperands ( ArrayRef< VPValue * >  Values )

static

Definition at line 171 of file VPlanSLP.cpp.

References getOperands(), I, llvm_unreachable, llvm::SPII::Load, and llvm::SPII::Store.

getOperands() [2/2]

static SmallVector<VPValue *, 4> getOperands ( ArrayRef< VPValue * >  Values, unsigned  OperandIndex  )

static

Definition at line 154 of file VPlanSLP.cpp.

References Operands.

Referenced by llvm::VPlanSlp::buildGraph(), getInvertibleOperands(), and getOperands().

Variable Documentation

LookaheadMaxDepth

unsigned LookaheadMaxDepth = 5

static

Definition at line 40 of file VPlanSLP.cpp.