class GlobalsAAResult::FunctionInfo

Declaration

class GlobalsAAResult::FunctionInfo { /* full declaration omitted */ };

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.

Declared at: llvm/lib/Analysis/GlobalsModRef.cpp:62

Method Overview

• public FunctionInfo()
• public FunctionInfo(const llvm::GlobalsAAResult::FunctionInfo & Arg)
• public FunctionInfo(llvm::GlobalsAAResult::FunctionInfo && Arg)
• public void addFunctionInfo(const llvm::GlobalsAAResult::FunctionInfo & FI)
• public void addModRefInfo(llvm::ModRefInfo NewMRI)
• public void addModRefInfoForGlobal(const llvm::GlobalValue & GV, llvm::ModRefInfo NewMRI)
• public void eraseModRefInfoForGlobal(const llvm::GlobalValue & GV)
• public llvm::ModRefInfo getModRefInfo() const
• public llvm::ModRefInfo getModRefInfoForGlobal(const llvm::GlobalValue & GV) const
• public llvm::ModRefInfo globalClearMayReadAnyGlobal(int I) const
• public bool mayReadAnyGlobal() const
• public void setMayReadAnyGlobal()
• public ~FunctionInfo()

Methods

¶FunctionInfo()

Declared at: llvm/lib/Analysis/GlobalsModRef.cpp:103

¶FunctionInfo(
    const llvm::GlobalsAAResult::FunctionInfo&
        Arg)

Declared at: llvm/lib/Analysis/GlobalsModRef.cpp:110

Parameters

const llvm::GlobalsAAResult::FunctionInfo& Arg

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

Declared at: llvm/lib/Analysis/GlobalsModRef.cpp:115

Parameters

llvm::GlobalsAAResult::FunctionInfo&& Arg

¶void addFunctionInfo(
    const llvm::GlobalsAAResult::FunctionInfo& FI)

Description

Add mod/ref info from another function into ours, saturating towards ModRef.

Declared at: llvm/lib/Analysis/GlobalsModRef.cpp:173

Parameters

const llvm::GlobalsAAResult::FunctionInfo& FI

¶void addModRefInfo(llvm::ModRefInfo NewMRI)

Description

Adds new \c ModRefInfo for this function to its state.

Declared at: llvm/lib/Analysis/GlobalsModRef.cpp:147

Parameters

llvm::ModRefInfo NewMRI

¶void addModRefInfoForGlobal(
    const llvm::GlobalValue& GV,
    llvm::ModRefInfo NewMRI)

Declared at: llvm/lib/Analysis/GlobalsModRef.cpp:184

Parameters

const llvm::GlobalValue& GV

llvm::ModRefInfo NewMRI

¶void eraseModRefInfoForGlobal(
    const llvm::GlobalValue& GV)

Description

Clear a global's ModRef info. Should be used when a global is being deleted.

Declared at: llvm/lib/Analysis/GlobalsModRef.cpp:196

Parameters

const llvm::GlobalValue& GV

¶llvm::ModRefInfo getModRefInfo() const

Description

Returns the \c ModRefInfo info for this function.

Declared at: llvm/lib/Analysis/GlobalsModRef.cpp:142

¶llvm::ModRefInfo getModRefInfoForGlobal(
    const llvm::GlobalValue& GV) const

Description

Returns the \c ModRefInfo info for this function w.r.t. a particular global, which may be more precise than the general information above.

Declared at: llvm/lib/Analysis/GlobalsModRef.cpp:160

Parameters

const llvm::GlobalValue& GV

¶llvm::ModRefInfo globalClearMayReadAnyGlobal(
    int I) const

Description

This method clears MayReadAnyGlobal bit added by GlobalsAAResult to return the corresponding ModRefInfo. It must align in functionality with clearMust().

Declared at: llvm/lib/Analysis/GlobalsModRef.cpp:136

Parameters

int I

¶bool mayReadAnyGlobal() const

Description

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

Declared at: llvm/lib/Analysis/GlobalsModRef.cpp:153

¶void setMayReadAnyGlobal()

Description

Sets this function as potentially reading from any global.

Declared at: llvm/lib/Analysis/GlobalsModRef.cpp:156

¶~FunctionInfo()

Declared at: llvm/lib/Analysis/GlobalsModRef.cpp:104