GlobalsModRef.cpp File Reference

#include "llvm/Analysis/GlobalsModRef.h"
#include "llvm/ADT/SCCIterator.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/MemoryBuiltins.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/InstIterator.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Module.h"
#include "llvm/Pass.h"
#include "llvm/Support/CommandLine.h"

Include dependency graph for GlobalsModRef.cpp:

Go to the source code of this file.

Classes
class	llvm::GlobalsAAResult::FunctionInfo
	The mod/ref information collected for a particular function. More...

Macros
#define	DEBUG_TYPE   "globalsmodref-aa"

Functions
	STATISTIC (NumNonAddrTakenGlobalVars, "Number of global vars without address taken")
	STATISTIC (NumNonAddrTakenFunctions,"Number of functions without address taken")
	STATISTIC (NumNoMemFunctions, "Number of functions that do not access memory")
	STATISTIC (NumReadMemFunctions, "Number of functions that only read memory")
	STATISTIC (NumIndirectGlobalVars, "Number of indirect global objects")
static bool	isNonEscapingGlobalNoAliasWithLoad (const GlobalValue *GV, const Value *V, int &Depth, const DataLayout &DL)
	INITIALIZE_PASS_BEGIN (GlobalsAAWrapperPass, "globals-aa", "Globals Alias Analysis", false, true) INITIALIZE_PASS_END(GlobalsAAWrapperPass

Variables
static cl::opt< bool >	EnableUnsafeGlobalsModRefAliasResults ("enable-unsafe-globalsmodref-alias-results", cl::init(false), cl::Hidden)
globals	aa
globals Globals Alias	Analysis
globals Globals Alias	false

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "globalsmodref-aa"

Definition at line 33 of file GlobalsModRef.cpp.

Function Documentation

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	GlobalsAAWrapperPass	,
		"globals-aa"	,
		"Globals Alias Analysis"	,
		false	,
		true
	)

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

isNonEscapingGlobalNoAliasWithLoad()

static bool isNonEscapingGlobalNoAliasWithLoad ( const GlobalValue *  GV, const Value *  V, int &  Depth, const DataLayout &  DL  )

static

Definition at line 626 of file GlobalsModRef.cpp.

References llvm::Depth, llvm::dyn_cast(), llvm::SmallVectorBase::empty(), llvm::GetUnderlyingObject(), llvm::SmallPtrSetImpl< PtrType >::insert(), llvm::Type::isSized(), llvm::SmallVectorImpl< T >::pop_back_val(), llvm::SmallVectorTemplateBase< T >::push_back(), and SI.

STATISTIC() [1/5]

STATISTIC	(	NumNonAddrTakenGlobalVars	,
		"Number of global vars without address taken"
	)

STATISTIC() [2/5]

STATISTIC	(	NumNonAddrTakenFunctions	,
		"Number of functions without address taken"
	)

STATISTIC() [3/5]

STATISTIC	(	NumNoMemFunctions	,
		"Number of functions that do not access memory"
	)

STATISTIC() [4/5]

STATISTIC	(	NumReadMemFunctions	,
		"Number of functions that only read memory"
	)

STATISTIC() [5/5]

STATISTIC	(	NumIndirectGlobalVars	,
		"Number of indirect global objects"
	)

Variable Documentation

aa

globals aa

Definition at line 987 of file GlobalsModRef.cpp.

Analysis

globals Globals Alias Analysis

Definition at line 987 of file GlobalsModRef.cpp.

EnableUnsafeGlobalsModRefAliasResults

cl::opt<bool> EnableUnsafeGlobalsModRefAliasResults("enable-unsafe-globalsmodref-alias-results", cl::init(false), cl::Hidden)

static

Referenced by llvm::GlobalsAAResult::alias().

false

globals Globals Alias false

Definition at line 987 of file GlobalsModRef.cpp.