MachineRegisterInfo.cpp File Reference

#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/ADT/iterator_range.h"
#include "llvm/CodeGen/LowLevelType.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/IR/Function.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include <cassert>

Include dependency graph for MachineRegisterInfo.cpp:

Go to the source code of this file.

Functions
static const TargetRegisterClass *	constrainRegClass (MachineRegisterInfo &MRI, unsigned Reg, const TargetRegisterClass *OldRC, const TargetRegisterClass *RC, unsigned MinNumRegs)
static const Function *	getCalledFunction (const MachineInstr &MI)
static bool	isNoReturnDef (const MachineOperand &MO)

Variables
static cl::opt< bool >	EnableSubRegLiveness ("enable-subreg-liveness", cl::Hidden, cl::init(true), cl::desc("Enable subregister liveness tracking."))

Function Documentation

constrainRegClass()

static const TargetRegisterClass* constrainRegClass ( MachineRegisterInfo &  MRI, unsigned  Reg, const TargetRegisterClass *  OldRC, const TargetRegisterClass *  RC, unsigned  MinNumRegs  )

static

Definition at line 70 of file MachineRegisterInfo.cpp.

References llvm::TargetRegisterInfo::getCommonSubClass(), llvm::TargetRegisterClass::getNumRegs(), llvm::MachineRegisterInfo::getTargetRegisterInfo(), and llvm::MachineRegisterInfo::setRegClass().

Referenced by llvm::MachineRegisterInfo::constrainRegClass().

getCalledFunction()

static const Function* getCalledFunction ( const MachineInstr &  MI )

static

Definition at line 551 of file MachineRegisterInfo.cpp.

References llvm::dyn_cast(), and llvm::MachineInstr::operands().

Referenced by isNoReturnDef().

isNoReturnDef()

static bool isNoReturnDef ( const MachineOperand &  MO )

static

Definition at line 562 of file MachineRegisterInfo.cpp.

References getCalledFunction(), llvm::MachineFunction::getFunction(), llvm::MachineBasicBlock::getParent(), llvm::MachineOperand::getParent(), llvm::MachineInstr::getParent(), llvm::Function::hasFnAttribute(), llvm::MachineInstr::isCall(), MI, llvm::Attribute::NoReturn, llvm::Attribute::NoUnwind, llvm::MachineBasicBlock::succ_empty(), and llvm::Attribute::UWTable.

Referenced by llvm::MachineRegisterInfo::isPhysRegModified().

Variable Documentation

EnableSubRegLiveness

cl::opt<bool> EnableSubRegLiveness("enable-subreg-liveness", cl::Hidden, cl::init(true), cl::desc("Enable subregister liveness tracking."))

static