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

Include dependency graph for TargetRegisterInfo.cpp:

Namespaces
	llvm
	This class represents lattice values for constants.

Macros
#define	DEBUG_TYPE "target-reg-info"

Functions
Printable	llvm::printReg (unsigned Reg, const TargetRegisterInfo TRI=nullptr, unsigned SubIdx=0, const MachineRegisterInfo MRI=nullptr)
	Prints virtual and physical registers with or without a TRI instance. More...

Printable	llvm::printRegUnit (unsigned Unit, const TargetRegisterInfo *TRI)
	Create Printable object to print register units on a raw_ostream. More...

Printable	llvm::printVRegOrUnit (unsigned VRegOrUnit, const TargetRegisterInfo *TRI)
	Create Printable object to print virtual registers and physical registers on a raw_ostream. More...

Printable	llvm::printRegClassOrBank (unsigned Reg, const MachineRegisterInfo &RegInfo, const TargetRegisterInfo *TRI)
	Create Printable object to print register classes or register banks on a raw_ostream. More...

static void	getAllocatableSetForRC (const MachineFunction &MF, const TargetRegisterClass *RC, BitVector &R)
	getAllocatableSetForRC - Toggle the bits that represent allocatable registers for the specific register class. More...

static const TargetRegisterClass *	firstCommonClass (const uint32_t A, const uint32_t B, const TargetRegisterInfo *TRI, const MVT::SimpleValueType SVT=MVT::SimpleValueType::Any)

static bool	shareSameRegisterFile (const TargetRegisterInfo &TRI, const TargetRegisterClass DefRC, unsigned DefSubReg, const TargetRegisterClass SrcRC, unsigned SrcSubReg)
	Check if the registers defined by the pair (RegisterClass, SubReg) share the same register file. More...

Macro Definition Documentation

◆ DEBUG_TYPE

#define DEBUG_TYPE "target-reg-info"

Definition at line 39 of file TargetRegisterInfo.cpp.

Function Documentation

◆ firstCommonClass()

static const TargetRegisterClass* firstCommonClass	(	const uint32_t *	A,
		const uint32_t *	B,
		const TargetRegisterInfo *	TRI,
		const MVT::SimpleValueType	SVT = `MVT::SimpleValueType::Any`
	)

inlinestatic

Definition at line 240 of file TargetRegisterInfo.cpp.

References llvm::SystemZICMP::Any, llvm::countTrailingZeros(), E, llvm::TargetRegisterInfo::getNumRegClasses(), llvm::TargetRegisterInfo::getRegClass(), I, and llvm::TargetRegisterInfo::isTypeLegalForClass().

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

◆ getAllocatableSetForRC()

static 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 210 of file TargetRegisterInfo.cpp.

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

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

◆ shareSameRegisterFile()

static bool shareSameRegisterFile	(	const TargetRegisterInfo &	TRI,
		const TargetRegisterClass *	DefRC,
		unsigned	DefSubReg,
		const TargetRegisterClass *	SrcRC,
		unsigned	SrcSubReg
	)

static

Check if the registers defined by the pair (RegisterClass, SubReg) share the same register file.

Definition at line 351 of file TargetRegisterInfo.cpp.

References llvm::TargetRegisterInfo::getCommonSubClass(), llvm::TargetRegisterInfo::getCommonSuperRegClass(), llvm::TargetRegisterInfo::getMatchingSuperRegClass(), and std::swap().

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

Namespaces