TargetRegisterInfo.cpp File Reference

#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/BitVector.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallSet.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/CodeGen/LiveInterval.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/TargetFrameLowering.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/CodeGen/VirtRegMap.h"
#include "llvm/CodeGenTypes/MachineValueType.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/DebugInfoMetadata.h"
#include "llvm/IR/Function.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Printable.h"
#include "llvm/Support/raw_ostream.h"
#include <cassert>
#include <utility>

Go to the source code of this file.

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

Macros
#define	DEBUG_TYPE   "target-reg-info"

Functions
LLVM_ABI Printable	llvm::printReg (Register Reg, const TargetRegisterInfo *TRI=nullptr, unsigned SubIdx=0, const MachineRegisterInfo *MRI=nullptr)
	Prints virtual and physical registers with or without a TRI instance.
LLVM_ABI Printable	llvm::printRegUnit (unsigned Unit, const TargetRegisterInfo *TRI)
	Create Printable object to print register units on a raw_ostream.
LLVM_ABI Printable	llvm::printVRegOrUnit (unsigned VRegOrUnit, const TargetRegisterInfo *TRI)
	Create Printable object to print virtual registers and physical registers on a raw_ostream.
LLVM_ABI Printable	llvm::printRegClassOrBank (Register Reg, const MachineRegisterInfo &RegInfo, const TargetRegisterInfo *TRI)
	Create Printable object to print register classes or register banks on a raw_ostream.
template<typename TypeT>
static const TargetRegisterClass *	getMinimalPhysRegClass (const TargetRegisterInfo *TRI, MCRegister Reg, TypeT Ty)
template<typename TypeT>
static const TargetRegisterClass *	getCommonMinimalPhysRegClass (const TargetRegisterInfo *TRI, MCRegister Reg1, MCRegister Reg2, TypeT Ty)
static void	getAllocatableSetForRC (const MachineFunction &MF, const TargetRegisterClass *RC, BitVector &R)
	getAllocatableSetForRC - Toggle the bits that represent allocatable registers for the specific register class.
static const TargetRegisterClass *	firstCommonClass (const uint32_t *A, const uint32_t *B, const TargetRegisterInfo *TRI)

Variables
static cl::opt< unsigned >	HugeSizeForSplit ("huge-size-for-split", cl::Hidden, cl::desc("A threshold of live range size which may cause " "high compile time cost in global splitting."), cl::init(5000))

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "target-reg-info"

Definition at line 42 of file TargetRegisterInfo.cpp.

Function Documentation

firstCommonClass()

const TargetRegisterClass * firstCommonClass ( const uint32_t * A, const uint32_t * B, const TargetRegisterInfo * TRI )

inlinestatic

Definition at line 314 of file TargetRegisterInfo.cpp.

References A(), B(), llvm::countr_zero(), E(), I, and TRI.

Referenced by llvm::TargetRegisterInfo::getCommonSubClass(), llvm::TargetRegisterInfo::getCommonSuperRegClass(), and llvm::TargetRegisterInfo::getMatchingSuperRegClass().

getAllocatableSetForRC()

void getAllocatableSetForRC ( const MachineFunction & MF, const TargetRegisterClass * RC, BitVector & R )

static

getAllocatableSetForRC - Toggle the bits that represent allocatable registers for the specific register class.

Definition at line 283 of file TargetRegisterInfo.cpp.

References assert(), llvm::TargetRegisterClass::getRawAllocationOrder(), and llvm::TargetRegisterClass::isAllocatable().

Referenced by llvm::TargetRegisterInfo::getAllocatableSet().

getCommonMinimalPhysRegClass()

template<typename TypeT>

const TargetRegisterClass * getCommonMinimalPhysRegClass ( const TargetRegisterInfo * TRI, MCRegister Reg1, MCRegister Reg2, TypeT Ty )

static

Definition at line 234 of file TargetRegisterInfo.cpp.

References assert(), llvm::TargetRegisterClass::hasSubClass(), llvm::MCRegister::isPhysical(), and TRI.

getMinimalPhysRegClass()

template<typename TypeT>

const TargetRegisterClass * getMinimalPhysRegClass ( const TargetRegisterInfo * TRI, MCRegister Reg, TypeT Ty )

static

Definition at line 206 of file TargetRegisterInfo.cpp.

References assert(), llvm::TargetRegisterClass::hasSubClass(), Reg, and TRI.

Referenced by llvm::PPCRegisterInfo::requiresFrameIndexScavenging().

Variable Documentation

HugeSizeForSplit

cl::opt< unsigned > HugeSizeForSplit("huge-size-for-split", cl::Hidden, cl::desc("A threshold of live range size which may cause " "high compile time cost in global splitting."), cl::init(5000)) ( "huge-size-for-split" , cl::Hidden , cl::desc("A threshold of live range size which may cause " "high compile time cost in global splitting.") , cl::init(5000)  )

static

Referenced by llvm::TargetRegisterInfo::shouldRegionSplitForVirtReg().