GlobalMerge.cpp File Reference

#include "llvm/CodeGen/GlobalMerge.h"
#include "llvm/ADT/BitVector.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Twine.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalAlias.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/Use.h"
#include "llvm/IR/User.h"
#include "llvm/InitializePasses.h"
#include "llvm/MC/SectionKind.h"
#include "llvm/Pass.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/TargetParser/Triple.h"
#include <algorithm>
#include <cassert>
#include <cstddef>
#include <cstdint>
#include <string>
#include <vector>

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "global-merge"

Functions
	STATISTIC (NumMerged, "Number of globals merged")
static bool	isSpecialMachOSection (StringRef Section)

Variables
static cl::opt< bool >	EnableGlobalMerge ("enable-global-merge", cl::Hidden, cl::desc("Enable the global merge pass"), cl::init(true))
static cl::opt< unsigned >	GlobalMergeMaxOffset ("global-merge-max-offset", cl::Hidden, cl::desc("Set maximum offset for global merge pass"), cl::init(0))
static cl::opt< bool >	GlobalMergeGroupByUse ("global-merge-group-by-use", cl::Hidden, cl::desc("Improve global merge pass to look at uses"), cl::init(true))
static cl::opt< bool >	GlobalMergeAllConst ("global-merge-all-const", cl::Hidden, cl::desc("Merge all const globals without looking at uses"), cl::init(false))
static cl::opt< bool >	GlobalMergeIgnoreSingleUse ("global-merge-ignore-single-use", cl::Hidden, cl::desc("Improve global merge pass to ignore globals only used alone"), cl::init(true))
static cl::opt< bool >	EnableGlobalMergeOnConst ("global-merge-on-const", cl::Hidden, cl::desc("Enable global merge pass on constants"), cl::init(false))
static cl::opt< cl::boolOrDefault >	EnableGlobalMergeOnExternal ("global-merge-on-external", cl::Hidden, cl::desc("Enable global merge pass on external linkage"))
static cl::opt< unsigned >	GlobalMergeMinDataSize ("global-merge-min-data-size", cl::desc("The minimum size in bytes of each global " "that should considered in merging."), cl::init(0), cl::Hidden)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "global-merge"

Definition at line 106 of file GlobalMerge.cpp.

Function Documentation

isSpecialMachOSection()

static bool isSpecialMachOSection ( StringRef  Section )

static

Definition at line 663 of file GlobalMerge.cpp.

STATISTIC()

STATISTIC	(	NumMerged	,
		"Number of globals merged"
	)

Variable Documentation

EnableGlobalMerge

cl::opt< bool > EnableGlobalMerge("enable-global-merge", cl::Hidden, cl::desc("Enable the global merge pass"), cl::init(true)) ( "enable-global-merge"  , cl::Hidden  , cl::desc("Enable the global merge pass")  , cl::init(true)    )

static

EnableGlobalMergeOnConst

cl::opt< bool > EnableGlobalMergeOnConst("global-merge-on-const", cl::Hidden, cl::desc("Enable global merge pass on constants"), cl::init(false)) ( "global-merge-on-const"  , cl::Hidden  , cl::desc("Enable global merge pass on constants")  , cl::init(false)    )

static

Referenced by llvm::createGlobalMergePass().

EnableGlobalMergeOnExternal

cl::opt< cl::boolOrDefault > EnableGlobalMergeOnExternal("global-merge-on-external", cl::Hidden, cl::desc("Enable global merge pass on external linkage")) ( "global-merge-on-external"  , cl::Hidden  , cl::desc("Enable global merge pass on external linkage")    )

static

Referenced by llvm::createGlobalMergePass().

GlobalMergeAllConst

cl::opt< bool > GlobalMergeAllConst("global-merge-all-const", cl::Hidden, cl::desc("Merge all const globals without looking at uses"), cl::init(false)) ( "global-merge-all-const"  , cl::Hidden  , cl::desc("Merge all const globals without looking at uses")  , cl::init(false)    )

static

Referenced by llvm::createGlobalMergePass().

GlobalMergeGroupByUse

cl::opt< bool > GlobalMergeGroupByUse("global-merge-group-by-use", cl::Hidden, cl::desc("Improve global merge pass to look at uses"), cl::init(true)) ( "global-merge-group-by-use"  , cl::Hidden  , cl::desc("Improve global merge pass to look at uses")  , cl::init(true)    )

static

GlobalMergeIgnoreSingleUse

cl::opt< bool > GlobalMergeIgnoreSingleUse("global-merge-ignore-single-use", cl::Hidden, cl::desc("Improve global merge pass to ignore globals only used alone"), cl::init(true)) ( "global-merge-ignore-single-use"  , cl::Hidden  , cl::desc("Improve global merge pass to ignore globals only used alone")  , cl::init(true)    )

static

GlobalMergeMaxOffset

cl::opt< unsigned > GlobalMergeMaxOffset("global-merge-max-offset", cl::Hidden, cl::desc("Set maximum offset for global merge pass"), cl::init(0)) ( "global-merge-max-offset"  , cl::Hidden  , cl::desc("Set maximum offset for global merge pass")  , cl::init(0)    )

static

GlobalMergeMinDataSize

cl::opt< unsigned > GlobalMergeMinDataSize("global-merge-min-data-size", cl::desc("The minimum size in bytes of each global " "that should considered in merging."), cl::init(0), cl::Hidden) ( "global-merge-min-data-size"  , cl::desc("The minimum size in bytes of each global " "that should considered in merging.")  , cl::init(0)  , cl::Hidden    )

static