ModuloSchedule.cpp File Reference

#include "llvm/CodeGen/ModuloSchedule.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Analysis/MemoryLocation.h"
#include "llvm/CodeGen/LiveIntervals.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineLoopInfo.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/InitializePasses.h"
#include "llvm/MC/MCContext.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "pipeliner"

Functions
static void	getPhiRegs (MachineInstr &Phi, MachineBasicBlock *Loop, Register &InitVal, Register &LoopVal)
	Return the register values for the operands of a Phi instruction.
static Register	getInitPhiReg (MachineInstr &Phi, MachineBasicBlock *LoopBB)
	Return the Phi register value that comes from the incoming block.
static Register	getLoopPhiReg (MachineInstr &Phi, MachineBasicBlock *LoopBB)
	Return the Phi register value that comes the loop block.
static void	replaceRegUsesAfterLoop (Register FromReg, Register ToReg, MachineBasicBlock *MBB, MachineRegisterInfo &MRI)
	Replace all uses of FromReg that appear outside the specified basic block with ToReg.
static bool	hasUseAfterLoop (Register Reg, MachineBasicBlock *BB, MachineRegisterInfo &MRI)
	Return true if the register has a use that occurs outside the specified loop.
static MachineBasicBlock *	createDedicatedExit (MachineBasicBlock *Loop, MachineBasicBlock *Exit, LiveIntervals &LIS)
	Create a dedicated exit for Loop.
static MachineInstr *	getLoopPhiUser (Register Reg, MachineBasicBlock *Loop)
	Return a phi if Reg is referenced by the phi.
static void	replacePhiSrc (MachineInstr &Phi, Register OrigReg, Register NewReg, MachineBasicBlock *NewMBB)
	INITIALIZE_PASS_BEGIN (ModuloScheduleTest, "modulo-schedule-test", "Modulo Schedule test pass", false, false) INITIALIZE_PASS_END(ModuloScheduleTest
static void	parseSymbolString (StringRef S, int &Cycle, int &Stage)

Variables
static cl::opt< bool >	SwapBranchTargetsMVE ("pipeliner-swap-branch-targets-mve", cl::Hidden, cl::init(false), cl::desc("Swap target blocks of a conditional branch for MVE expander"))
modulo schedule	test
modulo schedule Modulo Schedule test	pass
modulo schedule Modulo Schedule test	false

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "pipeliner"

Definition at line 23 of file ModuloSchedule.cpp.

Function Documentation

createDedicatedExit()

MachineBasicBlock * createDedicatedExit ( MachineBasicBlock * Loop, MachineBasicBlock * Exit, LiveIntervals & LIS )

static

Create a dedicated exit for Loop.

Exit is the original exit for Loop. If it is already dedicated exit, return it. Otherwise, insert a new block between them and return the new block.

Definition at line 2125 of file ModuloSchedule.cpp.

References llvm::MachineBasicBlock::addSuccessor(), Cond, llvm::MachineFunction::CreateMachineBasicBlock(), llvm::dwarf_linker::DebugLoc, llvm::TargetSubtargetInfo::getInstrInfo(), llvm::MachineFunction::getSubtarget(), llvm::MachineFunction::insert(), llvm::LiveIntervals::insertMBBInMaps(), llvm_unreachable, TBB, and TII.

getInitPhiReg()

Register getInitPhiReg ( MachineInstr & Phi, MachineBasicBlock * LoopBB )

static

Return the Phi register value that comes from the incoming block.

Definition at line 57 of file ModuloSchedule.cpp.

References Register.

getLoopPhiReg()

Register getLoopPhiReg ( MachineInstr & Phi, MachineBasicBlock * LoopBB )

static

Return the Phi register value that comes the loop block.

Definition at line 65 of file ModuloSchedule.cpp.

References Register.

getLoopPhiUser()

MachineInstr * getLoopPhiUser ( Register Reg, MachineBasicBlock * Loop )

static

Return a phi if Reg is referenced by the phi.

canApply() guarantees that at most only one such phi exists.

Definition at line 2378 of file ModuloSchedule.cpp.

References getPhiRegs(), and Reg.

getPhiRegs()

void getPhiRegs ( MachineInstr & Phi, MachineBasicBlock * Loop, Register & InitVal, Register & LoopVal )

static

Return the register values for the operands of a Phi instruction.

This function assume the instruction is a Phi.

Definition at line 41 of file ModuloSchedule.cpp.

References assert(), and Register.

hasUseAfterLoop()

bool hasUseAfterLoop ( Register Reg, MachineBasicBlock * BB, MachineRegisterInfo & MRI )

static

Return true if the register has a use that occurs outside the specified loop.

Definition at line 360 of file ModuloSchedule.cpp.

References MRI, and Reg.

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	ModuloScheduleTest	,
		"modulo-schedule-test"	,
		"Modulo Schedule test pass"	,
		false	,
		false	)

References INITIALIZE_PASS_DEPENDENCY.

parseSymbolString()

void parseSymbolString ( StringRef S, int & Cycle, int & Stage )

static

Definition at line 2818 of file ModuloSchedule.cpp.

References llvm::dbgs(), llvm::getToken(), and llvm_unreachable.

replacePhiSrc()

void replacePhiSrc ( MachineInstr & Phi, Register OrigReg, Register NewReg, MachineBasicBlock * NewMBB )

static

Definition at line 2466 of file ModuloSchedule.cpp.

replaceRegUsesAfterLoop()

void replaceRegUsesAfterLoop ( Register FromReg, Register ToReg, MachineBasicBlock * MBB, MachineRegisterInfo & MRI )

static

Replace all uses of FromReg that appear outside the specified basic block with ToReg.

Definition at line 349 of file ModuloSchedule.cpp.

References llvm::make_early_inc_range(), MBB, and MRI.

Variable Documentation

false

modulo schedule Modulo Schedule test false

Definition at line 2805 of file ModuloSchedule.cpp.

pass

modulo schedule Modulo Schedule test pass

Definition at line 2805 of file ModuloSchedule.cpp.

SwapBranchTargetsMVE

cl::opt< bool > SwapBranchTargetsMVE("pipeliner-swap-branch-targets-mve", cl::Hidden, cl::init(false), cl::desc("Swap target blocks of a conditional branch for MVE expander")) ( "pipeliner-swap-branch-targets-mve" , cl::Hidden , cl::init(false) , cl::desc("Swap target blocks of a conditional branch for MVE expander")  )

static

test

modulo schedule test

Definition at line 2804 of file ModuloSchedule.cpp.

Referenced by llvm::SmallBitVector::anyCommon(), llvm::PPCRegisterInfo::isCallerPreservedPhysReg(), matchAliasCondition(), llvm::SmallBitVector::operator&=(), llvm::Bitset< AEK_NUM_EXTENSIONS >::operator<(), llvm::FeatureBitset::operator<(), llvm::detail::zip_longest_iterator< decltype(adl_begin(std::declval< Args >()))... >::operator==(), llvm::SmallBitVector::operator^=(), llvm::SmallBitVector::operator|=(), llvm::CoalescingBitVector< IndexT >::set(), llvm::SmallBitVector::test(), llvm::CoalescingBitVector< IndexT >::test_and_set(), llvm::SparseBitVector< 128 >::test_and_set(), and llvm::SparseBitVectorElement< ElementSize >::test_and_set().