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/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"

Include dependency graph for ModuloSchedule.cpp:

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "pipeliner"

Functions
static void	getPhiRegs (MachineInstr &Phi, MachineBasicBlock *Loop, unsigned &InitVal, unsigned &LoopVal)
	Return the register values for the operands of a Phi instruction. More...
static unsigned	getInitPhiReg (MachineInstr &Phi, MachineBasicBlock *LoopBB)
	Return the Phi register value that comes from the incoming block. More...
static unsigned	getLoopPhiReg (MachineInstr &Phi, MachineBasicBlock *LoopBB)
	Return the Phi register value that comes the loop block. More...
static void	replaceRegUsesAfterLoop (unsigned FromReg, unsigned ToReg, MachineBasicBlock *MBB, MachineRegisterInfo &MRI, LiveIntervals &LIS)
	Replace all uses of FromReg that appear outside the specified basic block with ToReg. More...
static bool	hasUseAfterLoop (unsigned Reg, MachineBasicBlock *BB, MachineRegisterInfo &MRI)
	Return true if the register has a use that occurs outside the specified loop. More...
static void	removePhis (MachineBasicBlock *BB, MachineBasicBlock *Incoming)
	Remove the incoming block from the Phis in a basic block. More...
	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
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 22 of file ModuloSchedule.cpp.

Function Documentation

getInitPhiReg()

static unsigned getInitPhiReg ( MachineInstr &  Phi, MachineBasicBlock *  LoopBB  )

static

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

Definition at line 52 of file ModuloSchedule.cpp.

References llvm::numbers::e, llvm::MachineOperand::getMBB(), llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), and i.

getLoopPhiReg()

static unsigned getLoopPhiReg ( MachineInstr &  Phi, MachineBasicBlock *  LoopBB  )

static

Return the Phi register value that comes the loop block.

Definition at line 60 of file ModuloSchedule.cpp.

References llvm::numbers::e, llvm::MachineOperand::getMBB(), llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), and i.

getPhiRegs()

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

static

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

This function assume the instruction is a Phi.

Definition at line 36 of file ModuloSchedule.cpp.

References assert(), llvm::numbers::e, llvm::MachineOperand::getMBB(), llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), i, and llvm::MachineInstr::isPHI().

hasUseAfterLoop()

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

static

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

Definition at line 354 of file ModuloSchedule.cpp.

References BB, MRI, and llvm::MachineRegisterInfo::use_operands().

INITIALIZE_PASS_BEGIN()

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

parseSymbolString()

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

static

Definition at line 2157 of file ModuloSchedule.cpp.

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

removePhis()

static void removePhis ( MachineBasicBlock *  BB, MachineBasicBlock *  Incoming  )

static

Remove the incoming block from the Phis in a basic block.

Definition at line 846 of file ModuloSchedule.cpp.

References BB, llvm::numbers::e, i, and MI.

replaceRegUsesAfterLoop()

static void replaceRegUsesAfterLoop ( unsigned  FromReg, unsigned  ToReg, MachineBasicBlock *  MBB, MachineRegisterInfo &  MRI, LiveIntervals &  LIS  )

static

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

Definition at line 340 of file ModuloSchedule.cpp.

References llvm::LiveIntervals::createEmptyInterval(), llvm::LiveIntervals::hasInterval(), llvm::make_early_inc_range(), MBB, MRI, llvm::RISCVFenceField::O, and llvm::MachineRegisterInfo::use_operands().

Variable Documentation

false

modulo schedule Modulo Schedule test false

Definition at line 2144 of file ModuloSchedule.cpp.

pass

modulo schedule Modulo Schedule test pass

Definition at line 2144 of file ModuloSchedule.cpp.

Referenced by LLVMTargetMachineEmit(), and llvm::verifySafepointIR().

test

modulo schedule test

Definition at line 2143 of file ModuloSchedule.cpp.

Referenced by llvm::GCNSubtarget::initializeSubtargetDependencies(), llvm::detail::zip_shortest< Iters >::operator==(), llvm::detail::zip_longest_iterator< Iters >::operator==(), and llvm::Bitfield::test().