GCEmptyBasicBlocks.cpp File Reference

This file contains the implementation of empty blocks garbage collection pass. More...

#include "llvm/CodeGen/GCEmptyBasicBlocks.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/InitializePasses.h"

Go to the source code of this file.

Classes
class	GCEmptyBasicBlocksLegacy

Macros
#define	DEBUG_TYPE   "gc-empty-basic-blocks"

Functions
	STATISTIC (NumEmptyBlocksRemoved, "Number of empty blocks removed")
static bool	removeEmptyBlocks (MachineFunction &MF)
	INITIALIZE_PASS (GCEmptyBasicBlocksLegacy, "gc-empty-basic-blocks", "Removes empty basic blocks and redirects their uses to their " "fallthrough blocks.", false, false) MachineFunctionPass *llvm

Detailed Description

This file contains the implementation of empty blocks garbage collection pass.

Definition in file GCEmptyBasicBlocks.cpp.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "gc-empty-basic-blocks"

Definition at line 26 of file GCEmptyBasicBlocks.cpp.

Function Documentation

INITIALIZE_PASS()

INITIALIZE_PASS	(	GCEmptyBasicBlocksLegacy	,
		"gc-empty-basic-blocks"	,
		"Removes empty basic blocks and redirects their uses to their " "fallthrough blocks."	,
		false	,
		false	)

Definition at line 106 of file GCEmptyBasicBlocks.cpp.

References llvm::createGCEmptyBasicBlocksLegacyPass().

removeEmptyBlocks()

bool removeEmptyBlocks ( MachineFunction & MF )

static

Definition at line 58 of file GCEmptyBasicBlocks.cpp.

References llvm::any_of(), llvm::MachineFunction::back(), llvm::MachineFunction::begin(), llvm::dbgs(), llvm::MachineFunction::getJumpTableInfo(), llvm::MachineFunction::getName(), LLVM_DEBUG, MBB, MI, llvm::MachineJumpTableInfo::ReplaceMBBInJumpTables(), and llvm::MachineFunction::size().

Referenced by llvm::GCEmptyBasicBlocksPass::run(), and GCEmptyBasicBlocksLegacy::runOnMachineFunction().

STATISTIC()

STATISTIC	(	NumEmptyBlocksRemoved	,
		"Number of empty blocks removed"	)