GlobalDCE.cpp File Reference

#include "llvm/Transforms/IPO/GlobalDCE.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Module.h"
#include "llvm/Pass.h"
#include "llvm/Transforms/IPO.h"
#include "llvm/Transforms/Utils/CtorUtils.h"
#include "llvm/Transforms/Utils/GlobalStatus.h"

Include dependency graph for GlobalDCE.cpp:

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Macros
#define	DEBUG_TYPE   "globaldce"

Functions
	STATISTIC (NumAliases, "Number of global aliases removed")
	STATISTIC (NumFunctions, "Number of functions removed")
	STATISTIC (NumIFuncs, "Number of indirect functions removed")
	STATISTIC (NumVariables, "Number of global variables removed")
	INITIALIZE_PASS (GlobalDCELegacyPass, "globaldce", "Dead Global Elimination", false, false) ModulePass *llvm
static bool	isEmptyFunction (Function *F)
	Returns true if F is effectively empty. More...

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "globaldce"

Definition at line 31 of file GlobalDCE.cpp.

Function Documentation

INITIALIZE_PASS()

INITIALIZE_PASS	(	GlobalDCELegacyPass	,
		"globaldce"	,
		"Dead Global Elimination"	,
		false	,
		false
	)

Definition at line 71 of file GlobalDCE.cpp.

isEmptyFunction()

static bool isEmptyFunction ( Function *  F )

static

Returns true if F is effectively empty.

Definition at line 80 of file GlobalDCE.cpp.

References llvm::SmallPtrSetImpl< PtrType >::begin(), C, llvm::SmallPtrSetImpl< PtrType >::end(), llvm::SmallPtrSetImpl< PtrType >::erase(), llvm::GlobalValue::getComdat(), llvm::Function::getEntryBlock(), I, llvm::SmallPtrSetImpl< PtrType >::insert(), llvm::make_range(), llvm::SmallVectorTemplateBase< T >::push_back(), llvm::MipsISD::Ret, and llvm::Value::users().

Referenced by llvm::GlobalDCEPass::run().

STATISTIC() [1/4]

STATISTIC	(	NumAliases	,
		"Number of global aliases removed"
	)

STATISTIC() [2/4]

STATISTIC	(	NumFunctions	,
		"Number of functions removed"
	)

STATISTIC() [3/4]

STATISTIC	(	NumIFuncs	,
		"Number of indirect functions removed"
	)

STATISTIC() [4/4]

STATISTIC	(	NumVariables	,
		"Number of global variables removed"
	)