MachineInstr.cpp File Reference

#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/Hashing.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallBitVector.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/Analysis/MemoryLocation.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineInstrBundle.h"
#include "llvm/CodeGen/MachineMemOperand.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/PseudoSourceValue.h"
#include "llvm/CodeGen/Register.h"
#include "llvm/CodeGen/StackMaps.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/CodeGenTypes/LowLevelType.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DebugInfoMetadata.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/InlineAsm.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/ModuleSlotTracker.h"
#include "llvm/IR/Operator.h"
#include "llvm/MC/MCInstrDesc.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetMachine.h"
#include <algorithm>
#include <cassert>
#include <cstdint>
#include <cstring>
#include <utility>

Go to the source code of this file.

Typedefs
using	MMOList = SmallVector< const MachineMemOperand *, 2 >

Functions
static const MachineFunction *	getMFIfAvailable (const MachineInstr &MI)
static void	tryToGetTargetInfo (const MachineInstr &MI, const TargetRegisterInfo *&TRI, const MachineRegisterInfo *&MRI, const TargetIntrinsicInfo *&IntrinsicInfo, const TargetInstrInfo *&TII)
static void	moveOperands (MachineOperand *Dst, MachineOperand *Src, unsigned NumOps, MachineRegisterInfo *MRI)
	Move NumOps MachineOperands from Src to Dst, with support for overlapping ranges.
static bool	hasIdenticalMMOs (ArrayRef< MachineMemOperand * > LHS, ArrayRef< MachineMemOperand * > RHS)
	Check to see if the MMOs pointed to by the two MemRefs arrays are identical.
static bool	MemOperandsHaveAlias (const MachineFrameInfo &MFI, AAResults *AA, bool UseTBAA, const MachineMemOperand *MMOa, const MachineMemOperand *MMOb)
static const DIExpression *	computeExprForSpill (const MachineInstr &MI, const SmallVectorImpl< const MachineOperand * > &SpilledOperands)
	Compute the new DIExpression to use with a DBG_VALUE for a spill slot.
static const DIExpression *	computeExprForSpill (const MachineInstr &MI, Register SpillReg)
static LocationSize	getSpillSlotSize (const MMOList &Accesses, const MachineFrameInfo &MFI)

Variables
const unsigned	TiedMax = 15

Typedef Documentation

MMOList

using MMOList = SmallVector<const MachineMemOperand *, 2>

Definition at line 2456 of file MachineInstr.cpp.

Function Documentation

computeExprForSpill() [1/2]

static const DIExpression * computeExprForSpill ( const MachineInstr &  MI, const SmallVectorImpl< const MachineOperand * > &  SpilledOperands  )

static

Compute the new DIExpression to use with a DBG_VALUE for a spill slot.

This prepends DW_OP_deref when spilling an indirect DBG_VALUE.

Definition at line 2330 of file MachineInstr.cpp.

References llvm::DIExpression::appendOpsToArg(), assert(), llvm::DIExpression::DerefBefore, MI, and llvm::DIExpression::prepend().

Referenced by llvm::buildDbgValueForSpill(), computeExprForSpill(), and llvm::updateDbgValueForSpill().

computeExprForSpill() [2/2]

static const DIExpression * computeExprForSpill ( const MachineInstr &  MI, Register  SpillReg  )

static

Definition at line 2352 of file MachineInstr.cpp.

References assert(), computeExprForSpill(), MI, and llvm::SmallVectorTemplateBase< T, bool >::push_back().

getMFIfAvailable()

static const MachineFunction * getMFIfAvailable ( const MachineInstr &  MI )

static

Definition at line 65 of file MachineInstr.cpp.

References llvm::MachineBasicBlock::getParent(), MBB, and MI.

Referenced by llvm::MachineOperand::ChangeToRegister(), llvm::MachineOperand::getTargetIndexName(), llvm::hash_value(), llvm::MachineOperand::isIdenticalTo(), llvm::MachineInstr::print(), llvm::MachineOperand::print(), llvm::MachineOperand::printTargetFlags(), llvm::MachineOperand::setIsDef(), llvm::MachineOperand::setReg(), and tryToGetTargetInfo().

getSpillSlotSize()

static LocationSize getSpillSlotSize ( const MMOList &  Accesses, const MachineFrameInfo &  MFI  )

static

Definition at line 2458 of file MachineInstr.cpp.

References A, llvm::LocationSize::beforeOrAfterPointer(), llvm::LocationSize::getValue(), llvm::LocationSize::hasValue(), llvm::MachineFrameInfo::isSpillSlotObjectIndex(), and Size.

Referenced by llvm::MachineInstr::getFoldedRestoreSize(), and llvm::MachineInstr::getFoldedSpillSize().

hasIdenticalMMOs()

static bool hasIdenticalMMOs ( ArrayRef< MachineMemOperand * >  LHS, ArrayRef< MachineMemOperand * >  RHS  )

static

Check to see if the MMOs pointed to by the two MemRefs arrays are identical.

Definition at line 414 of file MachineInstr.cpp.

References LHS, llvm::make_pointee_range(), and RHS.

Referenced by llvm::MachineInstr::cloneMergedMemRefs().

MemOperandsHaveAlias()

static bool MemOperandsHaveAlias ( const MachineFrameInfo &  MFI, AAResults *  AA, bool  UseTBAA, const MachineMemOperand *  MMOa, const MachineMemOperand *  MMOb  )

static

Definition at line 1353 of file MachineInstr.cpp.

References assert(), llvm::MachineMemOperand::getAAInfo(), llvm::details::FixedOrScalableQuantity< LeafTy, ValueTy >::getKnownMinValue(), llvm::MachineMemOperand::getOffset(), llvm::MachineMemOperand::getPseudoValue(), llvm::MachineMemOperand::getSize(), llvm::LocationSize::getValue(), llvm::MachineMemOperand::getValue(), llvm::LocationSize::hasValue(), llvm::AAResults::isNoAlias(), llvm::LocationSize::isScalable(), llvm::PseudoSourceValue::mayAlias(), llvm::LocationSize::precise(), llvm::MemoryLocation::UnknownSize, and UseTBAA.

Referenced by llvm::MachineInstr::mayAlias().

moveOperands()

static void moveOperands ( MachineOperand *  Dst, MachineOperand *  Src, unsigned  NumOps, MachineRegisterInfo *  MRI  )

static

Move NumOps MachineOperands from Src to Dst, with support for overlapping ranges.

If MRI is non-null also update use-def chains.

Definition at line 191 of file MachineInstr.cpp.

References assert(), and MRI.

Referenced by llvm::MachineInstr::addOperand(), and llvm::MachineInstr::removeOperand().

tryToGetTargetInfo()

static void tryToGetTargetInfo ( const MachineInstr &  MI, const TargetRegisterInfo *&  TRI, const MachineRegisterInfo *&  MRI, const TargetIntrinsicInfo *&  IntrinsicInfo, const TargetInstrInfo *&  TII  )

static

Definition at line 74 of file MachineInstr.cpp.

References getMFIfAvailable(), MI, MRI, TII, and TRI.

Referenced by llvm::MachineOperand::print(), and llvm::MachineInstr::print().

Variable Documentation

TiedMax

const unsigned TiedMax = 15

Definition at line 1153 of file MachineInstr.cpp.

Referenced by llvm::MachineInstr::findTiedOperandIdx(), and llvm::MachineInstr::tieOperands().