TargetInstrInfo.cpp File Reference

#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/ADT/SmallSet.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/CodeGen/MachineCombinerPattern.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineMemOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/MachineScheduler.h"
#include "llvm/CodeGen/MachineTraceMetrics.h"
#include "llvm/CodeGen/PseudoSourceValue.h"
#include "llvm/CodeGen/ScoreboardHazardRecognizer.h"
#include "llvm/CodeGen/StackMaps.h"
#include "llvm/CodeGen/TargetFrameLowering.h"
#include "llvm/CodeGen/TargetLowering.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/CodeGen/TargetSchedule.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DebugInfoMetadata.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCInstrItineraries.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetMachine.h"

Go to the source code of this file.

Functions
static bool	isAsmComment (const char *Str, const MCAsmInfo &MAI)
static const TargetRegisterClass *	canFoldCopy (const MachineInstr &MI, const TargetInstrInfo &TII, unsigned FoldIdx)
static MachineInstr *	foldPatchpoint (MachineFunction &MF, MachineInstr &MI, ArrayRef< unsigned > Ops, int FrameIndex, const TargetInstrInfo &TII)
static void	foldInlineAsmMemOperand (MachineInstr *MI, unsigned OpNo, int FI, const TargetInstrInfo &TII)
static MachineInstr *	foldInlineAsmMemOperand (MachineInstr &MI, ArrayRef< unsigned > Ops, int FI, const TargetInstrInfo &TII)
static void	transferImplicitOperands (MachineInstr *MI, const TargetRegisterInfo *TRI)
	transferImplicitOperands - MI is a pseudo-instruction, and the lowered replacement instructions immediately precede it.
static bool	canCombine (MachineBasicBlock &MBB, MachineOperand &MO, unsigned CombineOpc=0)
static std::pair< bool, bool >	mustSwapOperands (unsigned Pattern)

Variables
static cl::opt< bool >	DisableHazardRecognizer ("disable-sched-hazard", cl::Hidden, cl::init(false), cl::desc("Disable hazard detection during preRA scheduling"))
static cl::opt< bool >	EnableAccReassociation ("acc-reassoc", cl::Hidden, cl::init(true), cl::desc("Enable reassociation of accumulation chains"))
static cl::opt< unsigned int >	MinAccumulatorDepth ("acc-min-depth", cl::Hidden, cl::init(8), cl::desc("Minimum length of accumulator chains " "required for the optimization to kick in"))
static cl::opt< unsigned int >	MaxAccumulatorWidth ("acc-max-width", cl::Hidden, cl::init(3), cl::desc("Maximum number of branches in the accumulator tree"))

Function Documentation

canCombine()

bool canCombine ( MachineBasicBlock & MBB, MachineOperand & MO, unsigned CombineOpc = 0 )

static

Definition at line 989 of file TargetInstrInfo.cpp.

References llvm::MachineOperand::getReg(), llvm::MachineOperand::isReg(), llvm::Register::isVirtual(), MBB, MI, and MRI.

Referenced by canCombineShiftIntoShXAdd(), canCombineWithFMUL(), canCombineWithMUL(), llvm::TargetInstrInfo::getAccumulatorChain(), getMaddPatterns(), getMiscPatterns(), and getSHXADDPatterns().

canFoldCopy()

const TargetRegisterClass * canFoldCopy ( const MachineInstr & MI, const TargetInstrInfo & TII, unsigned FoldIdx )

static

Definition at line 487 of file TargetInstrInfo.cpp.

References assert(), llvm::TargetRegisterClass::contains(), llvm::MachineOperand::getReg(), llvm::MachineOperand::getSubReg(), llvm::TargetRegisterClass::hasSubClassEq(), llvm::Register::isPhysical(), llvm::Register::isVirtual(), MI, MRI, and TII.

Referenced by llvm::TargetInstrInfo::foldMemoryOperand().

foldInlineAsmMemOperand() [1/2]

MachineInstr * foldInlineAsmMemOperand ( MachineInstr & MI, ArrayRef< unsigned > Ops, int FI, const TargetInstrInfo & TII )

static

Definition at line 671 of file TargetInstrInfo.cpp.

References AbstractManglingParser< Derived, Alloc >::Ops, llvm::MachineInstr::addMemOperand(), llvm::AnalyzeVirtRegInBundle(), assert(), llvm::InlineAsm::Extra_MayLoad, llvm::InlineAsm::Extra_MayStore, foldInlineAsmMemOperand(), llvm::MachinePointerInfo::getFixedStack(), llvm::MachineFunction::getFrameInfo(), llvm::MachineOperand::getImm(), llvm::MachineFunction::getMachineMemOperand(), llvm::MachineInstr::getMF(), llvm::MachineFrameInfo::getObjectAlign(), llvm::MachineFrameInfo::getObjectSize(), llvm::MachineInstr::getOperand(), MI, llvm::InlineAsm::MIOp_ExtraInfo, llvm::MachineMemOperand::MOLoad, llvm::MachineMemOperand::MONone, llvm::MachineMemOperand::MOStore, llvm::VirtRegInfo::Reads, llvm::MachineOperand::setImm(), TII, and llvm::VirtRegInfo::Writes.

foldInlineAsmMemOperand() [2/2]

void foldInlineAsmMemOperand ( MachineInstr * MI, unsigned OpNo, int FI, const TargetInstrInfo & TII )

static

Definition at line 645 of file TargetInstrInfo.cpp.

References assert(), llvm::SmallVectorTemplateCommon< T, typename >::empty(), F, foldInlineAsmMemOperand(), llvm::InlineAsm::m, llvm::InlineAsm::Mem, MI, llvm::MachineOperand::setImm(), llvm::SmallVectorTemplateCommon< T, typename >::size(), and TII.

Referenced by foldInlineAsmMemOperand(), foldInlineAsmMemOperand(), llvm::TargetInstrInfo::foldMemoryOperand(), and llvm::TargetInstrInfo::foldMemoryOperand().

foldPatchpoint()

MachineInstr * foldPatchpoint ( MachineFunction & MF, MachineInstr & MI, ArrayRef< unsigned > Ops, int FrameIndex, const TargetInstrInfo & TII )

static

Definition at line 580 of file TargetInstrInfo.cpp.

References AbstractManglingParser< Derived, Alloc >::Ops, llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addFrameIndex(), llvm::MachineInstrBuilder::addImm(), assert(), llvm::MachineInstr::getNumOperands(), llvm::MachineOperand::getReg(), llvm::MachineRegisterInfo::getRegClass(), llvm::MachineFunction::getRegInfo(), llvm::MachineOperand::getSubReg(), llvm::is_contained(), MI, llvm::report_fatal_error(), llvm::MachineInstr::tieOperands(), and TII.

Referenced by llvm::TargetInstrInfo::foldMemoryOperand(), and llvm::TargetInstrInfo::foldMemoryOperand().

isAsmComment()

bool isAsmComment ( const char * Str, const MCAsmInfo & MAI )

static

Definition at line 98 of file TargetInstrInfo.cpp.

References llvm::StringRef::data(), llvm::MCAsmInfo::getCommentString(), and llvm::StringRef::size().

Referenced by llvm::TargetInstrInfo::getInlineAsmLength().

mustSwapOperands()

std::pair< bool, bool > mustSwapOperands ( unsigned Pattern )

static

Definition at line 1283 of file TargetInstrInfo.cpp.

References llvm_unreachable, llvm::REASSOC_AX_BY, llvm::REASSOC_AX_YB, llvm::REASSOC_XA_BY, and llvm::REASSOC_XA_YB.

Referenced by llvm::TargetInstrInfo::reassociateOps().

transferImplicitOperands()

void transferImplicitOperands ( MachineInstr * MI, const TargetRegisterInfo * TRI )

static

transferImplicitOperands - MI is a pseudo-instruction, and the lowered replacement instructions immediately precede it.

Copy any implicit operands from MI to the replacement instruction.

Definition at line 865 of file TargetInstrInfo.cpp.

References MI, and TRI.

Referenced by llvm::TargetInstrInfo::lowerCopy().

Variable Documentation

DisableHazardRecognizer

cl::opt< bool > DisableHazardRecognizer("disable-sched-hazard", cl::Hidden, cl::init(false), cl::desc("Disable hazard detection during preRA scheduling")) ( "disable-sched-hazard" , cl::Hidden , cl::init(false) , cl::desc("Disable hazard detection during preRA scheduling")  )

static

Referenced by llvm::TargetInstrInfo::usePreRAHazardRecognizer().

EnableAccReassociation

cl::opt< bool > EnableAccReassociation("acc-reassoc", cl::Hidden, cl::init(true), cl::desc("Enable reassociation of accumulation chains")) ( "acc-reassoc" , cl::Hidden , cl::init(true) , cl::desc("Enable reassociation of accumulation chains")  )

static

Referenced by llvm::TargetInstrInfo::getAccumulatorReassociationPatterns().

MaxAccumulatorWidth

cl::opt< unsigned int > MaxAccumulatorWidth("acc-max-width", cl::Hidden, cl::init(3), cl::desc("Maximum number of branches in the accumulator tree")) ( "acc-max-width" , cl::Hidden , cl::init(3) , cl::desc("Maximum number of branches in the accumulator tree")  )

static

Referenced by llvm::TargetInstrInfo::genAlternativeCodeSequence().

MinAccumulatorDepth

cl::opt< unsigned int > MinAccumulatorDepth("acc-min-depth", cl::Hidden, cl::init(8), cl::desc("Minimum length of accumulator chains " "required for the optimization to kick in")) ( "acc-min-depth" , cl::Hidden , cl::init(8) , cl::desc("Minimum length of accumulator chains " "required for the optimization to kick in")  )

static

Referenced by llvm::TargetInstrInfo::getAccumulatorReassociationPatterns().