CSKYConstantIslandPass.cpp File Reference

#include "CSKY.h"
#include "CSKYConstantPoolValue.h"
#include "CSKYMachineFunctionInfo.h"
#include "CSKYSubtarget.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/Type.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <cassert>
#include <cstdint>
#include <iterator>
#include <vector>

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "CSKY-constant-islands"

Functions
	STATISTIC (NumCPEs, "Number of constpool entries")
	STATISTIC (NumSplit, "Number of uncond branches inserted")
	STATISTIC (NumCBrFixed, "Number of cond branches fixed")
	STATISTIC (NumUBrFixed, "Number of uncond branches fixed")
static bool	bbHasFallthrough (MachineBasicBlock *MBB)
	BBHasFallthrough - Return true if the specified basic block can fallthrough into the block immediately after it.
static bool	compareMbbNumbers (const MachineBasicBlock *LHS, const MachineBasicBlock *RHS)
	CompareMBBNumbers - Little predicate function to sort the WaterList by MBB ID.
static bool	bbIsJumpedOver (MachineBasicBlock *MBB)
	BBIsJumpedOver - Return true of the specified basic block's only predecessor unconditionally branches to its only successor.
static unsigned	getUnconditionalBrDisp (int Opc)
	getUnconditionalBrDisp - Returns the maximum displacement that can fit in the specific unconditional branch instruction.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "CSKY-constant-islands"

Definition at line 59 of file CSKYConstantIslandPass.cpp.

Function Documentation

bbHasFallthrough()

static bool bbHasFallthrough ( MachineBasicBlock *  MBB )

static

BBHasFallthrough - Return true if the specified basic block can fallthrough into the block immediately after it.

Definition at line 426 of file CSKYConstantIslandPass.cpp.

References llvm::MachineFunction::end(), llvm::ilist_node_impl< OptionsT >::getIterator(), llvm::MachineBasicBlock::getParent(), I, MBB, MBBI, llvm::MachineBasicBlock::succ_begin(), and llvm::MachineBasicBlock::succ_end().

bbIsJumpedOver()

static bool bbIsJumpedOver ( MachineBasicBlock *  MBB )

static

BBIsJumpedOver - Return true of the specified basic block's only predecessor unconditionally branches to its only successor.

Definition at line 794 of file CSKYConstantIslandPass.cpp.

References llvm::MachineBasicBlock::back(), llvm::MachineOperand::getMBB(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), MBB, llvm::MachineBasicBlock::pred_begin(), llvm::MachineBasicBlock::pred_size(), llvm::MachineBasicBlock::succ_begin(), and llvm::MachineBasicBlock::succ_size().

compareMbbNumbers()

static bool compareMbbNumbers ( const MachineBasicBlock *  LHS, const MachineBasicBlock *  RHS  )

static

CompareMBBNumbers - Little predicate function to sort the WaterList by MBB ID.

Definition at line 606 of file CSKYConstantIslandPass.cpp.

References LHS, and RHS.

getUnconditionalBrDisp()

static unsigned getUnconditionalBrDisp ( int  Opc )

inlinestatic

getUnconditionalBrDisp - Returns the maximum displacement that can fit in the specific unconditional branch instruction.

Definition at line 885 of file CSKYConstantIslandPass.cpp.

References llvm_unreachable.

STATISTIC() [1/4]

STATISTIC	(	NumCBrFixed	,
		"Number of cond branches fixed"
	)

STATISTIC() [2/4]

STATISTIC	(	NumCPEs	,
		"Number of constpool entries"
	)

STATISTIC() [3/4]

STATISTIC	(	NumSplit	,
		"Number of uncond branches inserted"
	)

STATISTIC() [4/4]

STATISTIC	(	NumUBrFixed	,
		"Number of uncond branches fixed"
	)