HexagonTargetTransformInfo.cpp File Reference

This file implements a TargetTransformInfo analysis pass specific to the Hexagon target machine. More...

#include "HexagonTargetTransformInfo.h"
#include "HexagonSubtarget.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/IR/InstrTypes.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/User.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Transforms/Utils/LoopPeel.h"
#include "llvm/Transforms/Utils/UnrollLoop.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "hexagontti"

Variables
static cl::opt< bool >	HexagonAutoHVX ("hexagon-autohvx", cl::init(false), cl::Hidden, cl::desc("Enable loop vectorizer for HVX"))
static cl::opt< bool >	EnableV68FloatAutoHVX ("force-hvx-float", cl::Hidden, cl::desc("Enable auto-vectorization of floatint point types on v68."))
static cl::opt< bool >	EmitLookupTables ("hexagon-emit-lookup-tables", cl::init(true), cl::Hidden, cl::desc("Control lookup table emission on Hexagon target"))
static cl::opt< bool >	HexagonMaskedVMem ("hexagon-masked-vmem", cl::init(true), cl::Hidden, cl::desc("Enable masked loads/stores for HVX"))
static const unsigned	FloatFactor = 4

Detailed Description

This file implements a TargetTransformInfo analysis pass specific to the Hexagon target machine.

It uses the target's detailed information to provide more precise answers to certain TTI queries, while letting the target independent and default TTI implementations handle the rest.

Definition in file HexagonTargetTransformInfo.cpp.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "hexagontti"

Definition at line 29 of file HexagonTargetTransformInfo.cpp.

Variable Documentation

EmitLookupTables

cl::opt< bool > EmitLookupTables("hexagon-emit-lookup-tables", cl::init(true), cl::Hidden, cl::desc("Control lookup table emission on Hexagon target")) ( "hexagon-emit-lookup-tables"  , cl::init(true)  , cl::Hidden  , cl::desc("Control lookup table emission on Hexagon target")    )

static

Referenced by llvm::HexagonTTIImpl::shouldBuildLookupTables().

EnableV68FloatAutoHVX

cl::opt< bool > EnableV68FloatAutoHVX("force-hvx-float", cl::Hidden, cl::desc("Enable auto-vectorization of floatint point types on v68.")) ( "force-hvx-float"  , cl::Hidden  , cl::desc("Enable auto-vectorization of floatint point types on v68.")    )

static

FloatFactor

const unsigned FloatFactor = 4

static

Definition at line 48 of file HexagonTargetTransformInfo.cpp.

Referenced by llvm::HexagonTTIImpl::getArithmeticInstrCost(), llvm::HexagonTTIImpl::getCastInstrCost(), llvm::HexagonTTIImpl::getCmpSelInstrCost(), and llvm::HexagonTTIImpl::getMemoryOpCost().

HexagonAutoHVX

cl::opt< bool > HexagonAutoHVX("hexagon-autohvx", cl::init(false), cl::Hidden, cl::desc("Enable loop vectorizer for HVX")) ( "hexagon-autohvx"  , cl::init(false)  , cl::Hidden  , cl::desc("Enable loop vectorizer for HVX")    )

static

HexagonMaskedVMem

cl::opt< bool > HexagonMaskedVMem("hexagon-masked-vmem", cl::init(true), cl::Hidden, cl::desc("Enable masked loads/stores for HVX")) ( "hexagon-masked-vmem"  , cl::init(true)  , cl::Hidden  , cl::desc("Enable masked loads/stores for HVX")    )

static

Referenced by llvm::HexagonTTIImpl::isLegalMaskedLoad(), and llvm::HexagonTTIImpl::isLegalMaskedStore().