LLVM  8.0.1
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llvm::MemDepResult Class Reference

A memory dependence query can return one of three different answers. More...

#include "llvm/Analysis/MemoryDependenceAnalysis.h"

Public Member Functions

 MemDepResult ()=default
 
bool isClobber () const
 Tests if this MemDepResult represents a query that is an instruction clobber dependency. More...
 
bool isDef () const
 Tests if this MemDepResult represents a query that is an instruction definition dependency. More...
 
bool isNonLocal () const
 Tests if this MemDepResult represents a query that is transparent to the start of the block, but where a non-local hasn't been done. More...
 
bool isNonFuncLocal () const
 Tests if this MemDepResult represents a query that is transparent to the start of the function. More...
 
bool isUnknown () const
 Tests if this MemDepResult represents a query which cannot and/or will not be computed. More...
 
Instruction * getInst () const
 If this is a normal dependency, returns the instruction that is depended on. More...
 
bool operator== (const MemDepResult &M) const
 
bool operator!= (const MemDepResult &M) const
 
bool operator< (const MemDepResult &M) const
 
bool operator> (const MemDepResult &M) const
 

Static Public Member Functions

static MemDepResult getDef (Instruction *Inst)
 get methods: These are static ctor methods for creating various MemDepResult kinds. More...
 
static MemDepResult getClobber (Instruction *Inst)
 
static MemDepResult getNonLocal ()
 
static MemDepResult getNonFuncLocal ()
 
static MemDepResult getUnknown ()
 

Friends

class MemoryDependenceResults
 

Detailed Description

A memory dependence query can return one of three different answers.

Definition at line 50 of file MemoryDependenceAnalysis.h.

Constructor & Destructor Documentation

◆ MemDepResult()

llvm::MemDepResult::MemDepResult ( )
default

Referenced by getClobber(), getDef(), getNonFuncLocal(), getNonLocal(), and getUnknown().

Member Function Documentation

◆ getClobber()

static MemDepResult llvm::MemDepResult::getClobber ( Instruction *  Inst)
inlinestatic

Definition at line 136 of file MemoryDependenceAnalysis.h.

References assert(), and MemDepResult().

Referenced by GetLocation(), and llvm::MemoryDependenceResults::getSimplePointerDependencyFrom().

◆ getDef()

static MemDepResult llvm::MemDepResult::getDef ( Instruction *  Inst)
inlinestatic

get methods: These are static ctor methods for creating various MemDepResult kinds.

Definition at line 132 of file MemoryDependenceAnalysis.h.

References assert(), and MemDepResult().

Referenced by llvm::MemoryDependenceResults::getInvariantGroupPointerDependency(), GetLocation(), and llvm::MemoryDependenceResults::getSimplePointerDependencyFrom().

◆ getInst()

Instruction* llvm::MemDepResult::getInst ( ) const
inline

If this is a normal dependency, returns the instruction that is depended on.

Otherwise, returns null.

Definition at line 178 of file MemoryDependenceAnalysis.h.

References llvm_unreachable.

Referenced by llvm::GVN::ValueTable::add(), eliminateDeadStores(), llvm::MemoryDependenceResults::getDependency(), llvm::MemoryDependenceResults::getNonLocalCallDependency(), llvm::MemoryDependenceResults::getNonLocalPointerDependency(), handleFree(), hasUndefContents(), moveUp(), llvm::MemoryDependenceResults::removeInstruction(), and reportMayClobberedLoad().

◆ getNonFuncLocal()

static MemDepResult llvm::MemDepResult::getNonFuncLocal ( )
inlinestatic

Definition at line 143 of file MemoryDependenceAnalysis.h.

References MemDepResult().

Referenced by llvm::MemoryDependenceResults::getDependency(), GetLocation(), llvm::MemoryDependenceResults::getNonLocalCallDependency(), and llvm::MemoryDependenceResults::getSimplePointerDependencyFrom().

◆ getNonLocal()

static MemDepResult llvm::MemDepResult::getNonLocal ( )
inlinestatic

Definition at line 140 of file MemoryDependenceAnalysis.h.

References MemDepResult().

Referenced by llvm::MemoryDependenceResults::getDependency(), llvm::MemoryDependenceResults::getInvariantGroupPointerDependency(), GetLocation(), llvm::MemoryDependenceResults::getNonLocalCallDependency(), and llvm::MemoryDependenceResults::getSimplePointerDependencyFrom().

◆ getUnknown()

static MemDepResult llvm::MemDepResult::getUnknown ( )
inlinestatic

Definition at line 146 of file MemoryDependenceAnalysis.h.

References MemDepResult().

Referenced by llvm::MemoryDependenceResults::getDependency(), llvm::MemoryDependenceResults::getInvariantGroupPointerDependency(), GetLocation(), llvm::MemoryDependenceResults::getNonLocalPointerDependency(), llvm::MemoryDependenceResults::getPointerDependencyFrom(), llvm::MemoryDependenceResults::getSimplePointerDependencyFrom(), and SortNonLocalDepInfoCache().

◆ isClobber()

bool llvm::MemDepResult::isClobber ( ) const
inline

Tests if this MemDepResult represents a query that is an instruction clobber dependency.

Definition at line 152 of file MemoryDependenceAnalysis.h.

Referenced by eliminateDeadStores(), llvm::MemoryDependenceResults::getNonLocalPointerDependency(), handleFree(), hasUndefContents(), moveUp(), patchAndReplaceAllUsesWith(), and reportMayClobberedLoad().

◆ isDef()

bool llvm::MemDepResult::isDef ( ) const
inline

Tests if this MemDepResult represents a query that is an instruction definition dependency.

Definition at line 156 of file MemoryDependenceAnalysis.h.

Referenced by llvm::GVN::ValueTable::add(), eliminateDeadStores(), llvm::MemoryDependenceResults::getNonLocalPointerDependency(), llvm::MemoryDependenceResults::getPointerDependencyFrom(), handleFree(), hasUndefContents(), patchAndReplaceAllUsesWith(), and reportMayClobberedLoad().

◆ isNonFuncLocal()

bool llvm::MemDepResult::isNonFuncLocal ( ) const
inline

Tests if this MemDepResult represents a query that is transparent to the start of the function.

Definition at line 166 of file MemoryDependenceAnalysis.h.

◆ isNonLocal()

bool llvm::MemDepResult::isNonLocal ( ) const
inline

Tests if this MemDepResult represents a query that is transparent to the start of the block, but where a non-local hasn't been done.

Definition at line 160 of file MemoryDependenceAnalysis.h.

Referenced by llvm::GVN::ValueTable::add(), llvm::createMemDepPrinter(), llvm::MemoryDependenceResults::getPointerDependencyFrom(), handleFree(), patchAndReplaceAllUsesWith(), and SortNonLocalDepInfoCache().

◆ isUnknown()

bool llvm::MemDepResult::isUnknown ( ) const
inline

Tests if this MemDepResult represents a query which cannot and/or will not be computed.

Definition at line 172 of file MemoryDependenceAnalysis.h.

Referenced by llvm::MemoryDependenceResults::getPointerDependencyFrom().

◆ operator!=()

bool llvm::MemDepResult::operator!= ( const MemDepResult &  M) const
inline

Definition at line 193 of file MemoryDependenceAnalysis.h.

◆ operator<()

bool llvm::MemDepResult::operator< ( const MemDepResult &  M) const
inline

Definition at line 194 of file MemoryDependenceAnalysis.h.

◆ operator==()

bool llvm::MemDepResult::operator== ( const MemDepResult &  M) const
inline

Definition at line 192 of file MemoryDependenceAnalysis.h.

◆ operator>()

bool llvm::MemDepResult::operator> ( const MemDepResult &  M) const
inline

Definition at line 195 of file MemoryDependenceAnalysis.h.

Friends And Related Function Documentation

◆ MemoryDependenceResults

friend class MemoryDependenceResults
friend

Definition at line 198 of file MemoryDependenceAnalysis.h.

The documentation for this class was generated from the following file:
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