LLVM  6.0.0svn
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llvm::GlobalsAAResult::FunctionInfo Class Reference

The mod/ref information collected for a particular function. More...

Public Member Functions

 FunctionInfo ()
 Checks to document the invariants of the bit packing here. More...
 
 ~FunctionInfo ()
 
 FunctionInfo (const FunctionInfo &Arg)
 
 FunctionInfo (FunctionInfo &&Arg)
 
FunctionInfooperator= (const FunctionInfo &RHS)
 
FunctionInfooperator= (FunctionInfo &&RHS)
 
ModRefInfo getModRefInfo () const
 Returns the ModRefInfo info for this function. More...
 
void addModRefInfo (ModRefInfo NewMRI)
 Adds new ModRefInfo for this function to its state. More...
 
bool mayReadAnyGlobal () const
 Returns whether this function may read any global variable, and we don't know which global. More...
 
void setMayReadAnyGlobal ()
 Sets this function as potentially reading from any global. More...
 
ModRefInfo getModRefInfoForGlobal (const GlobalValue &GV) const
 Returns the ModRefInfo info for this function w.r.t. More...
 
void addFunctionInfo (const FunctionInfo &FI)
 Add mod/ref info from another function into ours, saturating towards MRI_ModRef. More...
 
void addModRefInfoForGlobal (const GlobalValue &GV, ModRefInfo NewMRI)
 
void eraseModRefInfoForGlobal (const GlobalValue &GV)
 Clear a global's ModRef info. More...
 

Detailed Description

The mod/ref information collected for a particular function.

We collect information about mod/ref behavior of a function here, both in general and as pertains to specific globals. We only have this detailed information when we know something useful about the behavior. If we saturate to fully general mod/ref, we remove the info for the function.

Definition at line 62 of file GlobalsModRef.cpp.

Constructor & Destructor Documentation

◆ FunctionInfo() [1/3]

llvm::GlobalsAAResult::FunctionInfo::FunctionInfo ( )
inline

Checks to document the invariants of the bit packing here.

Definition at line 97 of file GlobalsModRef.cpp.

◆ ~FunctionInfo()

llvm::GlobalsAAResult::FunctionInfo::~FunctionInfo ( )
inline

Definition at line 98 of file GlobalsModRef.cpp.

◆ FunctionInfo() [2/3]

llvm::GlobalsAAResult::FunctionInfo::FunctionInfo ( const FunctionInfo Arg)
inline

◆ FunctionInfo() [3/3]

llvm::GlobalsAAResult::FunctionInfo::FunctionInfo ( FunctionInfo &&  Arg)
inline

Definition at line 109 of file GlobalsModRef.cpp.

References Arg.

Member Function Documentation

◆ addFunctionInfo()

void llvm::GlobalsAAResult::FunctionInfo::addFunctionInfo ( const FunctionInfo FI)
inline

◆ addModRefInfo()

void llvm::GlobalsAAResult::FunctionInfo::addModRefInfo ( ModRefInfo  NewMRI)
inline

Adds new ModRefInfo for this function to its state.

Definition at line 133 of file GlobalsModRef.cpp.

Referenced by llvm::GlobalsAAResult::FunctionInfo::addFunctionInfo(), and llvm::GlobalsAAResult::getModRefBehavior().

◆ addModRefInfoForGlobal()

void llvm::GlobalsAAResult::FunctionInfo::addModRefInfoForGlobal ( const GlobalValue GV,
ModRefInfo  NewMRI 
)
inline

Definition at line 169 of file GlobalsModRef.cpp.

References P.

Referenced by llvm::GlobalsAAResult::FunctionInfo::addFunctionInfo().

◆ eraseModRefInfoForGlobal()

void llvm::GlobalsAAResult::FunctionInfo::eraseModRefInfoForGlobal ( const GlobalValue GV)
inline

Clear a global's ModRef info.

Should be used when a global is being deleted.

Definition at line 181 of file GlobalsModRef.cpp.

References E, F(), I, and P.

◆ getModRefInfo()

ModRefInfo llvm::GlobalsAAResult::FunctionInfo::getModRefInfo ( ) const
inline

Returns the ModRefInfo info for this function.

Definition at line 128 of file GlobalsModRef.cpp.

References llvm::MRI_ModRef.

Referenced by llvm::GlobalsAAResult::FunctionInfo::addFunctionInfo(), and llvm::GlobalsAAResult::getModRefBehavior().

◆ getModRefInfoForGlobal()

ModRefInfo llvm::GlobalsAAResult::FunctionInfo::getModRefInfoForGlobal ( const GlobalValue GV) const
inline

Returns the ModRefInfo info for this function w.r.t.

a particular global, which may be more precise than the general information above.

Definition at line 146 of file GlobalsModRef.cpp.

References I, llvm::GlobalsAAResult::FunctionInfo::mayReadAnyGlobal(), llvm::MRI_NoModRef, llvm::MRI_Ref, and P.

◆ mayReadAnyGlobal()

bool llvm::GlobalsAAResult::FunctionInfo::mayReadAnyGlobal ( ) const
inline

Returns whether this function may read any global variable, and we don't know which global.

Definition at line 139 of file GlobalsModRef.cpp.

Referenced by llvm::GlobalsAAResult::FunctionInfo::addFunctionInfo(), and llvm::GlobalsAAResult::FunctionInfo::getModRefInfoForGlobal().

◆ operator=() [1/2]

FunctionInfo& llvm::GlobalsAAResult::FunctionInfo::operator= ( const FunctionInfo RHS)
inline

◆ operator=() [2/2]

FunctionInfo& llvm::GlobalsAAResult::FunctionInfo::operator= ( FunctionInfo &&  RHS)
inline

◆ setMayReadAnyGlobal()

void llvm::GlobalsAAResult::FunctionInfo::setMayReadAnyGlobal ( )
inline

Sets this function as potentially reading from any global.

Definition at line 142 of file GlobalsModRef.cpp.

Referenced by llvm::GlobalsAAResult::FunctionInfo::addFunctionInfo(), and llvm::GlobalsAAResult::getModRefBehavior().


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